Commit Graph

965998 Commits

Author SHA1 Message Date
Linus Torvalds
91f28da8c9 random32: make prandom_u32() less predictable
This is the cleanup of the latest series of prandom_u32 experimentations
 consisting in using SipHash instead of Tausworthe to produce the randoms
 used by the network stack. The changes to the files were kept minimal,
 and the controversial commit that used to take noise from the fast_pool
 (f227e3ec3b) was reverted. Instead, a dedicated "net_rand_noise" per_cpu
 variable is fed from various sources of activities (networking, scheduling)
 to perturb the SipHash state using fast, non-trivially predictable data,
 instead of keeping it fully deterministic. The goal is essentially to make
 any occasional memory leakage or brute-force attempt useless.
 
 The resulting code was verified to be very slightly faster on x86_64 than
 what is was with the controversial commit above, though this remains barely
 above measurement noise. It was also tested on i386 and arm, and build-
 tested only on arm64.
 
 The whole discussion around this is archived here:
   https://lore.kernel.org/netdev/20200808152628.GA27941@SDF.ORG/
 -----BEGIN PGP SIGNATURE-----
 
 iQIcBAABAgAGBQJflHDtAAoJEE44bZycYXAvxXUP/A9aKCaSnJUgYi/0Fa507bi9
 yJkNs6cotQfzmG8GznQWdG2mdsviqI/d08UdIHD9JHKoin3wcT4+0So546pCw9BR
 tlrHnFcRnqEqXFLggnqkKnnIgGNNTppMDSi96BplNoXYXAMRjjvKW9Vl94lU2Abk
 a+aOOJRu4Vzj/5tRT3fkg/ldN6YGZ6nbqVkzd0WAwuYYIj1VSYUSkLgKc65n+4Xp
 ISnVWObeHJ+tnBRDVudTaUNYi7T3QvCF9glZZlFUVBDQbTRSqjMBSUmnBnOg1mhO
 Q5nY6xrfTi/0i39+/wOUUOTaxe7YggymibQfN+Y26w1rPO45RkvORiPKvXlfZWaI
 a3wh1TMoDAptrW9VXiO9pJv6a4xC16c7FyyTnGkP4jP+HTFdgmgixoNmPKrBxuEZ
 X8O+HOSf155j057aECMivk8bIj4FfLmYt2ciWqRZTVCwu9uK29AJSMx0SphTmYQ0
 p0HaJ8mHKnFVViX9n+YOPRfZDIRGH1zTOxzPhEkzuX8vx/4uiXsbp/ILxg0uZ913
 DgMk1rzzBlZsL7QqJQnf9JM810pFcU/PI7Y7PKaGKz3ntkJT2WV7gMeg+Wwv9254
 pPccvffYzdbtJAHgj+If8lHwixE33u5RscXqjpxIWLPcKTOLQNIf+6bRQ86sA+Kq
 Vbza8sDu6IWhvApCGLmB
 =KHhI
 -----END PGP SIGNATURE-----

Merge tag '20201024-v4-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/wtarreau/prandom

Pull random32 updates from Willy Tarreau:
 "Make prandom_u32() less predictable.

  This is the cleanup of the latest series of prandom_u32
  experimentations consisting in using SipHash instead of Tausworthe to
  produce the randoms used by the network stack.

  The changes to the files were kept minimal, and the controversial
  commit that used to take noise from the fast_pool (f227e3ec3b) was
  reverted. Instead, a dedicated "net_rand_noise" per_cpu variable is
  fed from various sources of activities (networking, scheduling) to
  perturb the SipHash state using fast, non-trivially predictable data,
  instead of keeping it fully deterministic. The goal is essentially to
  make any occasional memory leakage or brute-force attempt useless.

  The resulting code was verified to be very slightly faster on x86_64
  than what is was with the controversial commit above, though this
  remains barely above measurement noise. It was also tested on i386 and
  arm, and build- tested only on arm64"

Link: https://lore.kernel.org/netdev/20200808152628.GA27941@SDF.ORG/

* tag '20201024-v4-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/wtarreau/prandom:
  random32: add a selftest for the prandom32 code
  random32: add noise from network and scheduling activity
  random32: make prandom_u32() output unpredictable
2020-10-25 10:40:08 -07:00
Linus Torvalds
d769139081 block-5.10-2020-10-24
-----BEGIN PGP SIGNATURE-----
 
 iQJEBAABCAAuFiEEwPw5LcreJtl1+l5K99NY+ylx4KYFAl+UQjkQHGF4Ym9lQGtl
 cm5lbC5kawAKCRD301j7KXHgpvN9D/9iHU7Vgi8J3SiLrHYUiDtMSI5VnEmSBo6K
 Ej/wbbrk4tm2UYi550krOk0dMaHxWD3XWSTlpnrE0sUfjs69G676yzxrlnPt50f5
 XbcMc0YOHZfffeu9xXykUO8Q2918PTPC08eLaTK1I8lhKAuuTFCT/syGYu+prfd7
 AogyuczaDok8nqJEK9QNr0iaEUbe17GQwmvpWyjHl/qfKhWvV2r6jCZZf6pzQj2c
 zv3kbiT3u6xw9OEuhY0sgpTEfhAHEXbNIln6Ob4qVgxmOjwgiZdU/QXyw1i2s6pc
 ks7e28P43r3VfNYGBfr/hQCeAJT9gOeUG5yBiQr7ooX6uNPL6GOCG7DO/g5y2thQ
 NkV4hub/FjYWbSmRzDlJGj1fWn4L+3r/O8g5nMr+F1L3JYeaW0hOyStqBQ4O74Cj
 04tvWQ8ndXdPQrm/iDhM6KxfCvR5TC6k4fy9XPpRW8JOxauhIwTZQJyEQUnXTH3v
 pwv3IxRmuWGa3mrJZ5kGhsNAEGHdZCL5soLI+BXAD2MUW2IB5v2HpD/z1bvWL/51
 uYiVIt/2LxgLkF7BXP40PnY0qqTsOwGxdd6wQhi5Jn9Et+JkmAAR6cVwXx4AhuQg
 FT5mq7ZTQBZrErQu4Mr1k3UyqBFm4MB+mbJhWrVWnUnnyA6pcr1NUsUTz5JcyrWz
 jWI7T1Si7w==
 =dFJi
 -----END PGP SIGNATURE-----

Merge tag 'block-5.10-2020-10-24' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:

 - NVMe pull request from Christoph
     - rdma error handling fixes (Chao Leng)
     - fc error handling and reconnect fixes (James Smart)
     - fix the qid displace when tracing ioctl command (Keith Busch)
     - don't use BLK_MQ_REQ_NOWAIT for passthru (Chaitanya Kulkarni)
     - fix MTDT for passthru (Logan Gunthorpe)
     - blacklist Write Same on more devices (Kai-Heng Feng)
     - fix an uninitialized work struct (zhenwei pi)"

 - lightnvm out-of-bounds fix (Colin)

 - SG allocation leak fix (Doug)

 - rnbd fixes (Gioh, Guoqing, Jack)

 - zone error translation fixes (Keith)

 - kerneldoc markup fix (Mauro)

 - zram lockdep fix (Peter)

 - Kill unused io_context members (Yufen)

 - NUMA memory allocation cleanup (Xianting)

 - NBD config wakeup fix (Xiubo)

* tag 'block-5.10-2020-10-24' of git://git.kernel.dk/linux-block: (27 commits)
  block: blk-mq: fix a kernel-doc markup
  nvme-fc: shorten reconnect delay if possible for FC
  nvme-fc: wait for queues to freeze before calling update_hr_hw_queues
  nvme-fc: fix error loop in create_hw_io_queues
  nvme-fc: fix io timeout to abort I/O
  null_blk: use zone status for max active/open
  nvmet: don't use BLK_MQ_REQ_NOWAIT for passthru
  nvmet: cleanup nvmet_passthru_map_sg()
  nvmet: limit passthru MTDS by BIO_MAX_PAGES
  nvmet: fix uninitialized work for zero kato
  nvme-pci: disable Write Zeroes on Sandisk Skyhawk
  nvme: use queuedata for nvme_req_qid
  nvme-rdma: fix crash due to incorrect cqe
  nvme-rdma: fix crash when connect rejected
  block: remove unused members for io_context
  blk-mq: remove the calling of local_memory_node()
  zram: Fix __zram_bvec_{read,write}() locking order
  skd_main: remove unused including <linux/version.h>
  sgl_alloc_order: fix memory leak
  lightnvm: fix out-of-bounds write to array devices->info[]
  ...
2020-10-24 12:46:42 -07:00
Linus Torvalds
af0041875c io_uring-5.10-2020-10-24
-----BEGIN PGP SIGNATURE-----
 
 iQJEBAABCAAuFiEEwPw5LcreJtl1+l5K99NY+ylx4KYFAl+UQh8QHGF4Ym9lQGtl
 cm5lbC5kawAKCRD301j7KXHgpl7WEADOTslFOof1RUPMb0Qvj4GO4cjvoFLW7KLt
 B83PmlW3WJpZrSiqZlrSPwcDELVphw67RL/2hp0jAfT1t00OdCOYQDmh7+kg9lnI
 fzu4NzfTKbriRWEtodIqZCiDoGXjzJGxNffhxPEt33YxRErI/fvuD/TzxwGGUInW
 OZ3Aze9Nj2DQ/eXhio48n4letTK6xNsjGDWvzwinthHWeBbID01isLlTei20PKU5
 Dk1buueUuEr/vNjJwEeRd8yDXZeLZ/br3gw/3B71MJoi2PUaXvuS8DV4LmXg2SS5
 yN0udSNk4AP/UlrVqN9bEqdbSTBSf2JIEW3k3/SEUjcjw6hMnbLeoW2vZx6Xvk6T
 vvAVHesLpCu8oEdWAkFm6Rb6ptJ1XpRrWWYxi1J1SB2Y8cGyGS1GoZWWPknM5M3I
 b1dNj18Bb+MmFvuKr7YYrb77tECuywxTHVGj6WwBOIlYrg44XQOumYYH9OmvZFz1
 6vWaXjLPOIM8fpAKX5Tx5sAy/FMl17H8I5AD2bZVvD0h0MqzLnvHEYahcAfOfb9y
 qpkdGnbAWo6IIkCrDcSOV4q6dmWu3as9eSs1j/6Xl4WoJ2MT9C//Gpv7iNMxxozy
 CznEPcbA8N9QazQmoebtB3gTBVyGUUKVDdVNzleMj9KD6yPlKFZ6+FZdikX59I9M
 t9QGh3+gow==
 =xidc
 -----END PGP SIGNATURE-----

Merge tag 'io_uring-5.10-2020-10-24' of git://git.kernel.dk/linux-block

Pull io_uring fixes from Jens Axboe:

 - fsize was missed in previous unification of work flags

 - Few fixes cleaning up the flags unification creds cases (Pavel)

 - Fix NUMA affinities for completely unplugged/replugged node for io-wq

 - Two fallout fixes from the set_fs changes. One local to io_uring, one
   for the splice entry point that io_uring uses.

 - Linked timeout fixes (Pavel)

 - Removal of ->flush() ->files work-around that we don't need anymore
   with referenced files (Pavel)

 - Various cleanups (Pavel)

* tag 'io_uring-5.10-2020-10-24' of git://git.kernel.dk/linux-block:
  splice: change exported internal do_splice() helper to take kernel offset
  io_uring: make loop_rw_iter() use original user supplied pointers
  io_uring: remove req cancel in ->flush()
  io-wq: re-set NUMA node affinities if CPUs come online
  io_uring: don't reuse linked_timeout
  io_uring: unify fsize with def->work_flags
  io_uring: fix racy REQ_F_LINK_TIMEOUT clearing
  io_uring: do poll's hash_node init in common code
  io_uring: inline io_poll_task_handler()
  io_uring: remove extra ->file check in poll prep
  io_uring: make cached_cq_overflow non atomic_t
  io_uring: inline io_fail_links()
  io_uring: kill ref get/drop in personality init
  io_uring: flags-based creds init in queue
2020-10-24 12:40:18 -07:00
Linus Torvalds
cb6b2897b9 libata-5.10-2020-10-24
-----BEGIN PGP SIGNATURE-----
 
 iQJEBAABCAAuFiEEwPw5LcreJtl1+l5K99NY+ylx4KYFAl+UQlEQHGF4Ym9lQGtl
 cm5lbC5kawAKCRD301j7KXHgpvPkEAC1qpoLi6ZQQau6wwiX3SzHFhK3THwZ7YwB
 Gx3fGBvPTQjAMx2wT5zSCJ9c+1MWphLDesArpjx0LW/YoWaoIL5TSdHl4i7xHfYx
 2n6D7aH9+oCYbG1BZhEaJJ7mnyeZ5eIt1fIWsE7OJApG5/BcdVHect4f4+La9p5g
 eHr/6vouI//PZs3GiAjxUgCoFxRUcZK9C181Q1eRdTVtDdBqDxkvIGM4lKmraKE5
 Kh+OYZgTiSbG3uz8nHULzRo23MCt2YqFvhq1OqVRNVIPop4uNy1THgks0/GBPavW
 EbzkHTMDOlDcX4z3NG9/53zAjcwZKWU5DYLLKtxn2ylWblxvXM1rtyO0foF/zqAq
 vs3Rgn+UCSlvo1UmMizbvLTrkxKQmTyRpSaJfiC3yfMKfDUVIH5xBthGB/+KBZ67
 4N++PVAobt0PCSfCXlA+yTsRRWgz71FP4fvLOigVy/VaHFWe7nO/NFb6g+nnhooi
 6WVLMqSgxd5Co3bFzY9joOG+MXtJDu31Bu39TA+2kwZaqhp17WqRIYfp28rLBvXd
 Ox46KHlzVUn7WMX233k245rbyRcBpvylcVseaxrv7GbJ/1UGSUKOAGfhjemwa1u8
 5iSzwwjeljAUlHUJiFycPVeexLyAnEHki1FGKFvP5NWDnKRUVomtGByBOlz3VVyZ
 74CGEiToig==
 =tbGF
 -----END PGP SIGNATURE-----

Merge tag 'libata-5.10-2020-10-24' of git://git.kernel.dk/linux-block

Pull libata fixes from Jens Axboe:
 "Two minor libata fixes:

   - Fix a DMA boundary mask regression for sata_rcar (Geert)

   - kerneldoc markup fix (Mauro)"

* tag 'libata-5.10-2020-10-24' of git://git.kernel.dk/linux-block:
  ata: fix some kernel-doc markups
  ata: sata_rcar: Fix DMA boundary mask
2020-10-24 12:36:24 -07:00
Linus Torvalds
0eac1102e9 Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull misc vfs updates from Al Viro:
 "Assorted stuff all over the place (the largest group here is
  Christoph's stat cleanups)"

* 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  fs: remove KSTAT_QUERY_FLAGS
  fs: remove vfs_stat_set_lookup_flags
  fs: move vfs_fstatat out of line
  fs: implement vfs_stat and vfs_lstat in terms of vfs_fstatat
  fs: remove vfs_statx_fd
  fs: omfs: use kmemdup() rather than kmalloc+memcpy
  [PATCH] reduce boilerplate in fsid handling
  fs: Remove duplicated flag O_NDELAY occurring twice in VALID_OPEN_FLAGS
  selftests: mount: add nosymfollow tests
  Add a "nosymfollow" mount option.
2020-10-24 12:26:05 -07:00
Linus Torvalds
1b307ac870 dma-mapping fixes for 5.10:
- document the new document dma_{alloc,free}_pages API
  - two fixups for the dma-mapping.h split
 -----BEGIN PGP SIGNATURE-----
 
 iQI/BAABCgApFiEEgdbnc3r/njty3Iq9D55TZVIEUYMFAl+UN1ELHGhjaEBsc3Qu
 ZGUACgkQD55TZVIEUYPhkg//QLMwY4Lib1IPdeYR4k/UE2E4YtPjQghucNHXDkrd
 jjV5tvGPfNDOEKeCOamivTcOmc3E+jFhQFjpHplqd4OjsfZT3EyXaopdX/qN1Bbo
 JIib0WAAxO1N2MRhEPJzGAsCkMPT32Q52/ka1QUOmr1E8VPrKhU4T9+FnTbj1rgF
 HbMk+PdV4+HP53CvK+aaOfNHqJqQoTBeCx9xebybAjxIBCI+LedRwC7haV4Zz6tg
 xSp9cW0Ztdp9U7u1dOO4gEqnL/fNk3+RWF5iwtyCi96uYmguV+/vAqpWMyej97q5
 2Dx0jTQvj0FhnPug9asydadjtUqkzfRCSDGv4TybeHT/OZJEGAwkdJG7V/5PwGOg
 VCMpqi/WRIDPnUtN3OY4IZFigbyb4wJ6MOO/hvXagC7Lc2+z9ZhuUKUjSsV90LoT
 2a4xwm9M1JAglYbhGvLl5cjzmDSdCFXuGYlJ18lRZx7d4cGi34hAqq3WfqqteHm+
 IRfeAaWN7N+W8PgzGaDqfUVDrGNVZ7eo02kVicaJFCdJE5ecS3rUbyU8uVjhX7Sl
 h8zwBs8/5hFIKLCWUBiT+UBmvWXbG/a0plRh/vIvJ8lk4m4+kwdTRwgngpSkb3G/
 ytAJPZTeI7r75zkwxTHPE01Khf8/qWJ3cdv97PpQH+7mlo4J0XUr5ssmiQ7DAHuu
 jjo=
 =0N7Y
 -----END PGP SIGNATURE-----

Merge tag 'dma-mapping-5.10-1' of git://git.infradead.org/users/hch/dma-mapping

Pull dma-mapping fixes from Christoph Hellwig:

 - document the new dma_{alloc,free}_pages() API

 - two fixups for the dma-mapping.h split

* tag 'dma-mapping-5.10-1' of git://git.infradead.org/users/hch/dma-mapping:
  dma-mapping: document dma_{alloc,free}_pages
  dma-mapping: move more functions to dma-map-ops.h
  ARM/sa1111: add a missing include of dma-map-ops.h
2020-10-24 12:17:05 -07:00
Linus Torvalds
9bf8d8bcf3 Two fixes for the pull request, and an unrelated bugfix for
a host hang.
 -----BEGIN PGP SIGNATURE-----
 
 iQFIBAABCAAyFiEE8TM4V0tmI4mGbHaCv/vSX3jHroMFAl+T6RoUHHBib256aW5p
 QHJlZGhhdC5jb20ACgkQv/vSX3jHroMx2gf+PjoeMjLKtstdKDdiLFV46X7YdYKz
 sUoDhpSbiLpEus5BF6OauUWwKgB7GcsoDUnLgjN5jqkAQzoFm0YOcI2GlXS999SL
 5QIg6Vw5WF8X/7EVt6gxzC6KcWjbQvv38R/Ktd/0sMqRBPiZG7kVcWeXlopb9DaQ
 Rdgg0hNVpgDiTNrBNl5RnM7Wz/SrOZmwaotW1LcII+BkCnj9Av77v77TxN9YuvG4
 o+GMMQseFAzDjQ+jHZkHuBmPRy5dQB9ywzEIrUCubqhT04sWbQ6DhGfx45a0IgsY
 33iT28omYdMVlRd/i3KcHQ86JJSo5g7pOqLwGd1L9HjNTS5VmQ8HXNJWBA==
 =ECL9
 -----END PGP SIGNATURE-----

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM fixes from Paolo Bonzini:
 "Two fixes for this merge window, and an unrelated bugfix for a host
  hang"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: ioapic: break infinite recursion on lazy EOI
  KVM: vmx: rename pi_init to avoid conflict with paride
  KVM: x86/mmu: Avoid modulo operator on 64-bit value to fix i386 build
2020-10-24 12:09:22 -07:00
Linus Torvalds
c51ae12472 Three fixes to SEV-ES to correct setting up the new early pagetable
on 5-level paging machines, to always map boot_params and the kernel
 cmdline, and disable stack protector for ../compressed/head{32,64}.c.
 (Arvind Sankar)
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAl+T8ZcACgkQEsHwGGHe
 VUoaTRAAnc1LUAbf6dgsKBf84VPMbyPS2pZa4CL/5HGg+ZQOL6lK91dhT9nmsB6U
 gr5u/9x4mGF5YEvYUUXB1yYEcyGBSW1JCBUFyQdAxIpBnlk2VmuKr5E3uA/ioprl
 mxgvO1dCfZUXboGGb2Keo6EP3Z+FMm9o9LifdO7udeXUYAFAjB6FpUV0egXbaUSo
 nT8f+OqavhD9nsChW5kFTtWTHkTbei9aTfAei54ADQPe+3KNud1i/YynzCSmoB9a
 Frc9xFEgComUptsDhPR4nshuogZgH6q2tz6J3e7og+zdInUUQ1q7E6sweXWJ17sw
 8o+dp1X5uwziH1tmfcS+3Z8Mpy64LLVoywM7WkcMGcqnwzoOaUWkjItbf68UQPKx
 fRCO87JMCYifh3El6IgbOglXZKtdYRy5nkPDfb0NtIQdko4nc/yXLGZxoQJOSM/F
 bnMokk/+etrzu9BlxTSxV7q2GS5kza1TZP0LB3q8km+zQOdYHNfYgnZtUiVqpOKl
 HmlY4LSFv7FV+yr1or+XbOVfhsBqFqO8YkAC7xqtHcmo3OgLwL+0d399U+7O0Nk1
 aU5zK1TmiQHQBoLNkBDcnXSZJ78ooXfup4WK7Oxk4SuiGd3vW4FG6QtoBtMY+Ads
 sLEsjAHjvJJQg14AgO1LDwdmTSABHd/SoLit8+SrGbScctwkx3w=
 =iVqC
 -----END PGP SIGNATURE-----

Merge tag 'x86_seves_fixes_for_v5.10_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 SEV-ES fixes from Borislav Petkov:
 "Three fixes to SEV-ES to correct setting up the new early pagetable on
  5-level paging machines, to always map boot_params and the kernel
  cmdline, and disable stack protector for ../compressed/head{32,64}.c.
  (Arvind Sankar)"

* tag 'x86_seves_fixes_for_v5.10_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/boot/64: Explicitly map boot_params and command line
  x86/head/64: Disable stack protection for head$(BITS).o
  x86/boot/64: Initialize 5-level paging variables earlier
2020-10-24 11:49:32 -07:00
Willy Tarreau
c6e169bc14 random32: add a selftest for the prandom32 code
Given that this code is new, let's add a selftest for it as well.
It doesn't rely on fixed sets, instead it picks 1024 numbers and
verifies that they're not more correlated than desired.

Link: https://lore.kernel.org/netdev/20200808152628.GA27941@SDF.ORG/
Cc: George Spelvin <lkml@sdf.org>
Cc: Amit Klein <aksecurity@gmail.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: "Jason A. Donenfeld" <Jason@zx2c4.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: tytso@mit.edu
Cc: Florian Westphal <fw@strlen.de>
Cc: Marc Plumb <lkml.mplumb@gmail.com>
Signed-off-by: Willy Tarreau <w@1wt.eu>
2020-10-24 20:21:57 +02:00
Willy Tarreau
3744741ada random32: add noise from network and scheduling activity
With the removal of the interrupt perturbations in previous random32
change (random32: make prandom_u32() output unpredictable), the PRNG
has become 100% deterministic again. While SipHash is expected to be
way more robust against brute force than the previous Tausworthe LFSR,
there's still the risk that whoever has even one temporary access to
the PRNG's internal state is able to predict all subsequent draws till
the next reseed (roughly every minute). This may happen through a side
channel attack or any data leak.

This patch restores the spirit of commit f227e3ec3b ("random32: update
the net random state on interrupt and activity") in that it will perturb
the internal PRNG's statee using externally collected noise, except that
it will not pick that noise from the random pool's bits nor upon
interrupt, but will rather combine a few elements along the Tx path
that are collectively hard to predict, such as dev, skb and txq
pointers, packet length and jiffies values. These ones are combined
using a single round of SipHash into a single long variable that is
mixed with the net_rand_state upon each invocation.

The operation was inlined because it produces very small and efficient
code, typically 3 xor, 2 add and 2 rol. The performance was measured
to be the same (even very slightly better) than before the switch to
SipHash; on a 6-core 12-thread Core i7-8700k equipped with a 40G NIC
(i40e), the connection rate dropped from 556k/s to 555k/s while the
SYN cookie rate grew from 5.38 Mpps to 5.45 Mpps.

Link: https://lore.kernel.org/netdev/20200808152628.GA27941@SDF.ORG/
Cc: George Spelvin <lkml@sdf.org>
Cc: Amit Klein <aksecurity@gmail.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: "Jason A. Donenfeld" <Jason@zx2c4.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: tytso@mit.edu
Cc: Florian Westphal <fw@strlen.de>
Cc: Marc Plumb <lkml.mplumb@gmail.com>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: Willy Tarreau <w@1wt.eu>
2020-10-24 20:21:57 +02:00
George Spelvin
c51f8f88d7 random32: make prandom_u32() output unpredictable
Non-cryptographic PRNGs may have great statistical properties, but
are usually trivially predictable to someone who knows the algorithm,
given a small sample of their output.  An LFSR like prandom_u32() is
particularly simple, even if the sample is widely scattered bits.

It turns out the network stack uses prandom_u32() for some things like
random port numbers which it would prefer are *not* trivially predictable.
Predictability led to a practical DNS spoofing attack.  Oops.

This patch replaces the LFSR with a homebrew cryptographic PRNG based
on the SipHash round function, which is in turn seeded with 128 bits
of strong random key.  (The authors of SipHash have *not* been consulted
about this abuse of their algorithm.)  Speed is prioritized over security;
attacks are rare, while performance is always wanted.

Replacing all callers of prandom_u32() is the quick fix.
Whether to reinstate a weaker PRNG for uses which can tolerate it
is an open question.

Commit f227e3ec3b ("random32: update the net random state on interrupt
and activity") was an earlier attempt at a solution.  This patch replaces
it.

Reported-by: Amit Klein <aksecurity@gmail.com>
Cc: Willy Tarreau <w@1wt.eu>
Cc: Eric Dumazet <edumazet@google.com>
Cc: "Jason A. Donenfeld" <Jason@zx2c4.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: tytso@mit.edu
Cc: Florian Westphal <fw@strlen.de>
Cc: Marc Plumb <lkml.mplumb@gmail.com>
Fixes: f227e3ec3b ("random32: update the net random state on interrupt and activity")
Signed-off-by: George Spelvin <lkml@sdf.org>
Link: https://lore.kernel.org/netdev/20200808152628.GA27941@SDF.ORG/
[ willy: partial reversal of f227e3ec3b5c; moved SIPROUND definitions
  to prandom.h for later use; merged George's prandom_seed() proposal;
  inlined siprand_u32(); replaced the net_rand_state[] array with 4
  members to fix a build issue; cosmetic cleanups to make checkpatch
  happy; fixed RANDOM32_SELFTEST build ]
Signed-off-by: Willy Tarreau <w@1wt.eu>
2020-10-24 20:21:57 +02:00
Linus Torvalds
b6f96e75ae powerpc fixes for 5.10 #2
A fix for undetected data corruption on Power9 Nimbus <= DD2.1 in the emulation
 of VSX loads. The affected CPUs were not widely available.
 
 Two fixes for machine check handling in guests under PowerVM.
 
 A fix for our recent changes to SMP setup, when CONFIG_CPUMASK_OFFSTACK=y.
 
 Three fixes for races in the handling of some of our powernv sysfs attributes.
 
 One change to remove TM from the set of Power10 CPU features.
 
 A couple of other minor fixes.
 
 Thanks to:
   Aneesh Kumar K.V, Christophe Leroy, Ganesh Goudar, Jordan Niethe, Mahesh
   Salgaonkar, Michael Neuling, Oliver O'Halloran, Qian Cai, Srikar Dronamraju,
   Vasant Hegde.
 -----BEGIN PGP SIGNATURE-----
 
 iQJHBAABCAAxFiEEJFGtCPCthwEv2Y/bUevqPMjhpYAFAl+UASATHG1wZUBlbGxl
 cm1hbi5pZC5hdQAKCRBR6+o8yOGlgAbpD/4nN+0cM7M2iCPL1cqd3nmzziJ/tXsq
 1ZxU+2B+cU+pUy4LHgtH1arJb85iVqFR3cC9j705uo6kO9vqsppTj2752srSEioM
 er1UxzRza/lNZaVGaywCD9oApayPkzg74IbenXDDduI+oWvQuvWZbSBskJfdARg2
 7kBFhV7w8sUGa8e/JS1FITndPPO9tMurk+s0FgP4cjsGM/iTW8eUfGcOFsOlc+uZ
 tybZUCY/G4E77etE1KHVjw8IcwSh0P/ibQ6nLnIFpOtPCRs5tTqbuARYN8U55M9H
 0ebt3sv5QTyNvZY0bm5p9ZsC1AKyciUO5SWPNEEwzOdyYVQjlofHj3UvcHKW2D1t
 ymbglsdQeXM5uuexa23ape1e3UuwW1JhsHTQLnCbI3C/snkMA3ZegVsS66GIMXn2
 C0gef0RzQ7HrvwUEl3V/b6W87LL6NpGU6RRWyva7/0pLMZkMtKpGgWg/hVzPRTcC
 6yoUVWNN5p7pZu6VDkoqdJuw7hQPyo7t5Kj71G+/SdH5engcFjnbBxDiEge/4a7+
 RluvswpCn9SyyEvS2BL262LSPq8iYH4+at6n+uLbonZSY0P9Z5zSpPpkNJkyTnwz
 GXj1DBSEOBDZQ7pFeoCFOeYoo1Yk5EQpmA7YuxnZkzOdxFpIUgFU1wdRemzVZw2o
 PTw5VHoRgCmIsQ==
 =LMZv
 -----END PGP SIGNATURE-----

Merge tag 'powerpc-5.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc fixes from Michael Ellerman:

 - A fix for undetected data corruption on Power9 Nimbus <= DD2.1 in the
   emulation of VSX loads. The affected CPUs were not widely available.

 - Two fixes for machine check handling in guests under PowerVM.

 - A fix for our recent changes to SMP setup, when
   CONFIG_CPUMASK_OFFSTACK=y.

 - Three fixes for races in the handling of some of our powernv sysfs
   attributes.

 - One change to remove TM from the set of Power10 CPU features.

 - A couple of other minor fixes.

Thanks to: Aneesh Kumar K.V, Christophe Leroy, Ganesh Goudar, Jordan
Niethe, Mahesh Salgaonkar, Michael Neuling, Oliver O'Halloran, Qian Cai,
Srikar Dronamraju, Vasant Hegde.

* tag 'powerpc-5.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/pseries: Avoid using addr_to_pfn in real mode
  powerpc/uaccess: Don't use "m<>" constraint with GCC 4.9
  powerpc/eeh: Fix eeh_dev_check_failure() for PE#0
  powerpc/64s: Remove TM from Power10 features
  selftests/powerpc: Make alignment handler test P9N DD2.1 vector CI load workaround
  powerpc: Fix undetected data corruption with P9N DD2.1 VSX CI load emulation
  powerpc/powernv/dump: Handle multiple writes to ack attribute
  powerpc/powernv/dump: Fix race while processing OPAL dump
  powerpc/smp: Use GFP_ATOMIC while allocating tmp mask
  powerpc/smp: Remove unnecessary variable
  powerpc/mce: Avoid nmi_enter/exit in real mode on pseries hash
  powerpc/opal_elog: Handle multiple writes to ack attribute
2020-10-24 11:09:13 -07:00
Linus Torvalds
0593c1b459 RISC-V Patches for the 5.10 Merge Window, Part 2
This actually just contains a single patch set:
 
 * The remainder of Christoph's work to remove set_fs, including the RISC-V
   portion.
 -----BEGIN PGP SIGNATURE-----
 
 iQJHBAABCgAxFiEEKzw3R0RoQ7JKlDp6LhMZ81+7GIkFAl+TtGcTHHBhbG1lckBk
 YWJiZWx0LmNvbQAKCRAuExnzX7sYiS1rD/97L4HvdLpNOOcbk3ecGEe0l1VMx9JE
 twhJyifurCf7w70WwgOjNL5sl1OnoDjUjFni0GyrN5+FycocAHd9o1+fqvaEwRaZ
 BFusgHkzuRhf+hSCwYov1spPuJbp4bKH6yat169uLrskjEZkhk0Dc2lVMHXb3Sn4
 4AzmSz6i58KkX1BLnSAlo6JPbFm2NaEswxWrcifcbjJ1lsvPYOgjR3SH5StXxO2a
 sggsOtUeKsHkHwTsxeSGzcqxwEuxsjNN75BPT11E1Ip9XS2qv6XzalVVWiXIdcff
 beJ8y5RuBb7OkbgFcmTXyr/RNoOIPq1xiIGzWu5ITi9PX7TTIdUFHGFaGE8LIRSY
 PuNOnP3pz+0r/bBscXFSba6zPLeACNYraJxtcc6sfLlkUmHDwQDTu1ChHYNW6H7N
 JHPcMy8wdootYO2nwdNDCCOE0Tes5OkeW+5pw7qhSv+6ZkY+9i2jKVkhx19oq81X
 Be9rrADNt3y9jGlu3xjvL5naN6OlTWWFh9r6M9LSDpvqIHrraaabJqkzM1LPLzu+
 +NJ8lKBbbyzIwXyg/+yVecO58UWqMzbOdvdnZHrd2wUTEHotKuF8L8RV/QKrAtK1
 5K9s00eKnTge1Lhm1NcaseI8yZrgpcOr9zFJW1IEoxPzpy+leM1VuMKG43MxMKR2
 Ed0ldco9ht64Jg==
 =EaJX
 -----END PGP SIGNATURE-----

Merge tag 'riscv-for-linus-5.10-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

Pull more RISC-V updates from Palmer Dabbelt:
 "Just a single patch set: the remainder of Christoph's work to remove
  set_fs, including the RISC-V portion"

* tag 'riscv-for-linus-5.10-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  riscv: remove address space overrides using set_fs()
  riscv: implement __get_kernel_nofault and __put_user_nofault
  riscv: refactor __get_user and __put_user
  riscv: use memcpy based uaccess for nommu again
  asm-generic: make the set_fs implementation optional
  asm-generic: add nommu implementations of __{get,put}_kernel_nofault
  asm-generic: improve the nommu {get,put}_user handling
  uaccess: provide a generic TASK_SIZE_MAX definition
2020-10-24 10:57:57 -07:00
Linus Torvalds
45fe605832 ARM: SoC defconfig updates
We keep this in a separate branch to avoid cross-branch conflicts, but
 most of the material here is fairly boring -- some new drivers turned on
 for hardware since they were merged, and some refreshed files due to
 time having moved a lot of entries around.
 -----BEGIN PGP SIGNATURE-----
 
 iQJDBAABCgAtFiEElf+HevZ4QCAJmMQ+jBrnPN6EHHcFAl+TVc4PHG9sb2ZAbGl4
 b20ubmV0AAoJEIwa5zzehBx3G1wP/0rgV6iqTW8I9J1LQa14zzTZHJz4pntBM6Wc
 XEBGOW4QJSCLZIV+5HUY4w9UUFSBZkyhPtkFLkaEp+BrbvbALakHmpX+T5p3tHsN
 Oii/bibJd8o90a6rpki2cZDdzInvnnpDtdHbBjvmvsSgmwPeNa6jarMM0IEqB7AZ
 dyPUbaN/pc9Qo85Bi6qy4p+LTWYXx9ARNsv1uzAHCXPIEy//d6EGIQkDmNkKJBEb
 oNN2+h+ne2M8CN7e/H3b9HRcQ4GCUj5LdYl8Gh3N/ZvnGShIv1l45M87bviB8F/2
 nuozo99k/O5iodGtBAXoOdfSG9vP5FAE8bKu6/3MUi9U9SmiIceYEN9BOh4xxXbo
 V4VUTrQ3MbnzqBk5D/k779z0fEijH/5Noe+kau1tKudzGvbqH+Dg1XOLs5981trT
 Qpr4TEON7i0kXU5AV2hk4FE7yz3+Kpbe1F1DhF2q7khT7LpO9lGxBpM7Tyd5DpyC
 vpXfl9vRrcAFDzJUSzETBbRVRDKPoEIGF+Ywy2YKs4EzmkP1ouPvAzGmXEM5/svu
 HoSMpliURionBPrDNtmAdXoo1oSi7ZAhJwgDDwXYEXj7oFA8h7ZYuqhtJx323wKm
 SHsbvsgW2gqqk7me//ZC0y1EoO2mg9LjFSJf1OfH63UEH3/4ckwgZ6xLNnIpqEd4
 Es+FnyNM
 =T9BC
 -----END PGP SIGNATURE-----

Merge tag 'armsoc-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC defconfig updates from Olof Johansson:
 "We keep this in a separate branch to avoid cross-branch conflicts, but
  most of the material here is fairly boring -- some new drivers turned
  on for hardware since they were merged, and some refreshed files due
  to time having moved a lot of entries around"

* tag 'armsoc-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (33 commits)
  ARM: multi_v7_defconfig: add FMC2 EBI controller support
  arm64: defconfig: enable Qualcomm ASoC modules
  arm64: defconfig: qcom: enable GPU clock controller for SM8[12]50
  arm64: defconfig: enable INTERCONNECT for Qualcomm chipsets
  arm64: defconfig: enable the sl28cpld board management controller
  arm64: defconfig: Enable the eLCDIF and Raydium RM67191 drivers
  arm64: defconfig: Enable Qcom SNPS Femto PHY
  ARM: configs: Update Realview defconfig
  ARM: configs: Update Versatile defconfig
  ARM: config: aspeed_g5: Enable IBM OP Panel driver
  ARM: config: aspeed-g5: Enable I2C GPIO mux driver
  ARM: config: aspeed: Fix selection of media drivers
  arm64: defconfig: Enable Samsung S3FWRN5 NFC driver
  ARM: omap2plus_defconfig: enable generic net options
  ARM: omap2plus_defconfig: enable twl4030_madc as a loadable module
  arm64: defconfig: Enable clock driver for ROHM BD718x7 PMIC
  arm64: defconfig: Build ADMA and ACONNECT driver
  arm64: defconfig: Build AHUB component drivers
  arm64: defconfig: Enable Lontium LT9611 driver
  arm64: defcondfig: Enable USB ACM and FTDI drivers
  ...
2020-10-24 10:53:04 -07:00
Linus Torvalds
e533cda12d ARM: Devicetree updates
As usual, most of the changes are to devicetrees. Besides smaller fixes,
 some refactorings and cleanups, some of the new platforms and chips
 (or significant features) supported are below:
 
 Broadcom boards:
  - Cisco Meraki MR32 (BCM53016-based)
  - BCM2711 (RPi4) display pipeline support
 
 Actions Semi boards:
  - Caninos Loucos Labrador SBC (S500-based)
  - RoseapplePi SBC (S500-based)
 
 Allwinner SoCs/boards:
  - A100 SoC with Perf1 board
  - Mali, DMA, Cetrus and IR support for R40 SoC
 
 Amlogic boards:
  - Libretch S905x CC V2 board
  - Hardkernel ODROID-N2+ board
 
 Aspeed boards/platforms:
  - Wistron Mowgli (AST2500-based, Power9 OpenPower server)
  - Facebook Wedge400 (AST2500-based, ToR switch)
 
 Hisilicon SoC:
  - SD5203 SoC
 
 Nvidia boards:
  - Tegra234 VDK, for pre-silicon Orin SoC
 
 NXP i.MX boards:
  - Librem 5 phone
  - i.MX8MM DDR4 EVK
  - Variscite VAR-SOM-MX8MN SoM
  - Symphony board
  - Tolino Shine 2 HD
  - TQMa6 SoM
  - Y Soft IOTA Orion
 
 Rockchip boards:
  - NanoPi R2S board
  - A95X-Z2 board
  - more Rock-Pi4 variants
 
 STM32 boards:
  - Odyssey SOM board (STM32MP157CAC-based)
  - DH DRC02 board
 
 Toshiba SoCs/boards:
  - Visconti SoC and TPMV7708 board
 -----BEGIN PGP SIGNATURE-----
 
 iQJDBAABCgAtFiEElf+HevZ4QCAJmMQ+jBrnPN6EHHcFAl+TVacPHG9sb2ZAbGl4
 b20ubmV0AAoJEIwa5zzehBx37MMP/imMO5e0QY1/7xxXWm4Kgc/Uffqw2Dvhj74a
 4Nrudwz6oUFGpZzIFYxqeCeWwotjA0nXmvM4Nl/SbxtlbV6nY/JrOL1OJToaGY0z
 Oc1jdA0MdXITdi6Xl5PTRqDeIHTSUmTclZWi5gvT7LFEvHog3mquJ7PiNTrjyuV0
 9BmHipwfmH6V5gDJZvN2dDlkhy0cpQKJFw7ylKCL89UNiEAd2QtNG0d0RLdz7yPX
 IGdecFelOhG9MSZyuFYYB2HOI33ukjZ9dA+yFy7BWOqegf/Z5hI02mxpke7Sys/5
 4XEN7ksSSYr6sm3h9XNW++IYkapZ9y/ZW+sQdiBZ3GMOwMXj02TdRkpC7f+FgAPo
 Hl7yXodGmXynL6ULu7/lIbBvqfWkLcwfVCYZx6PoWRE2q5g5ifoYp9b8kI5cLXrb
 BJn85XIuIaoO0cgrq7EzZnksaiwY1CNL84mYgkKRCGbBoJKHRiU+8Ilm5SKzk3kq
 KJ0gmbwFMjvTYxs3g6LPCo0jUNLjmLQMr0tL7iHDWkk5uqA+gfjKSLQfPby3jrMr
 6RDZBzMB+tPz1e++RWo41XD/Mm2kw8MGstsCOLzk2TdLh7e3fPfU4g7m0aqs/Q1y
 +LCqshffF/XVzV2uTFHDUGWufIM9nY6rdzuBc+JACJ5E+QyDg1tGKtMB3TYqgdN2
 aRY3NLSv
 =xjfB
 -----END PGP SIGNATURE-----

Merge tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM Devicetree updates from Olof Johansson:
 "As usual, most of the changes are to devicetrees.

  Besides smaller fixes, some refactorings and cleanups, some of the new
  platforms and chips (or significant features) supported are below:

  Broadcom boards:
   - Cisco Meraki MR32 (BCM53016-based)
   - BCM2711 (RPi4) display pipeline support

  Actions Semi boards:
   - Caninos Loucos Labrador SBC (S500-based)
   - RoseapplePi SBC (S500-based)

  Allwinner SoCs/boards:
   - A100 SoC with Perf1 board
   - Mali, DMA, Cetrus and IR support for R40 SoC

  Amlogic boards:
   - Libretch S905x CC V2 board
   - Hardkernel ODROID-N2+ board

  Aspeed boards/platforms:
   - Wistron Mowgli (AST2500-based, Power9 OpenPower server)
   - Facebook Wedge400 (AST2500-based, ToR switch)

  Hisilicon SoC:
   - SD5203 SoC

  Nvidia boards:
   - Tegra234 VDK, for pre-silicon Orin SoC

  NXP i.MX boards:
   - Librem 5 phone
   - i.MX8MM DDR4 EVK
   - Variscite VAR-SOM-MX8MN SoM
   - Symphony board
   - Tolino Shine 2 HD
   - TQMa6 SoM
   - Y Soft IOTA Orion

  Rockchip boards:
   - NanoPi R2S board
   - A95X-Z2 board
   - more Rock-Pi4 variants

  STM32 boards:
   - Odyssey SOM board (STM32MP157CAC-based)
   - DH DRC02 board

  Toshiba SoCs/boards:
   - Visconti SoC and TPMV7708 board"

* tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (638 commits)
  ARM: dts: nspire: Fix SP804 users
  arm64: dts: lg: Fix SP804 users
  arm64: dts: lg: Fix SP805 clocks
  ARM: mstar: Fix up the fallout from moving the dts/dtsi files
  ARM: mstar: Add mstar prefix to all of the dtsi/dts files
  ARM: mstar: Add interrupt to pm_uart
  ARM: mstar: Add interrupt controller to base dtsi
  ARM: dts: meson8: remove two invalid interrupt lines from the GPU node
  arm64: dts: ti: k3-j7200-common-proc-board: Add USB support
  arm64: dts: ti: k3-j7200-common-proc-board: Configure the SERDES lane function
  arm64: dts: ti: k3-j7200-main: Add USB controller
  arm64: dts: ti: k3-j7200-main.dtsi: Add USB to SERDES lane MUX
  arm64: dts: ti: k3-j7200-main: Add SERDES lane control mux
  dt-bindings: ti-serdes-mux: Add defines for J7200 SoC
  ARM: dts: hisilicon: add SD5203 dts
  ARM: dts: hisilicon: fix the system controller compatible nodes
  arm64: dts: zynqmp: Fix leds subnode name for zcu100/ultra96 v1
  arm64: dts: zynqmp: Remove undocumented u-boot properties
  arm64: dts: zynqmp: Remove additional compatible string for i2c IPs
  arm64: dts: zynqmp: Rename buses to be align with simple-bus yaml
  ...
2020-10-24 10:44:18 -07:00
Linus Torvalds
2e368dd2bb ARM: SoC-related driver updates
Various driver updates for platforms. A bulk of this is smaller fixes or
 cleanups, but some of the new material this time around is:
 
  - Support for Nvidia Tegra234 SoC
  - Ring accelerator support for TI AM65x
  - PRUSS driver for TI platforms
  - Renesas support for R-Car V3U SoC
  - Reset support for Cortex-M4 processor on i.MX8MQ
 
 There are also new socinfo entries for a handful of different SoCs
 and platforms.
 -----BEGIN PGP SIGNATURE-----
 
 iQJDBAABCgAtFiEElf+HevZ4QCAJmMQ+jBrnPN6EHHcFAl+TUboPHG9sb2ZAbGl4
 b20ubmV0AAoJEIwa5zzehBx3T4YP/R5pjF2C1gt8FrCaG4IfhIY1VHWelfPcB5qB
 RC7Pn4MCRCEY+10YPXA70oS6KBaC+gtZ4bPeInzfLXh1ynFJJb+XtAIxoRhnkEw+
 /R979wNcIls9JqkvnHWFx29Y008W2ZNcXVNKH7O2Gxy+eKzDcTMsoH/zj8xWrV5b
 +eBllTzGU4RArYRJdcwOBQwMO6L2pzADHZ7hGMAY//8fo+qrxg8b9EINsH1UHCa8
 gQdWdVlmv6GeLB6RYLRBCWxpW4jOLDqEAvyDV84QQmYHvzD9tqJExNR0hfGTs4TU
 TZWK7LWSNqF0ujQUbFh9Ikcx6DypU1gvE7LKhCDrf4D7HLRX5v4BjGH+xtVtjsyD
 xzh4WEoa3qCNu1mxQjKG8Y6U7bB9cRI2TPVxbbmI4ZuF0njvybecwwOZUBQl4aD4
 5x+Df3pO/E5ECLOBeTnLgvw20fcjHv4HP8l63B6ADb31FUiZrJXItvayY5qXWe+P
 HSgUykmVA4nd4PnLsSj9seyWqOTIqUZ3U3TsmfxIQh2Otie01okwuHb1J7ErO/u0
 W148SgSwVbnkPxjbBHKGgC2r+Q/AjSDGRBYL0ThIVFUztxTBBwhj3FIvMnyyxTIj
 yFBY14KQ8FcNUs8DrbPCaAx/RDCB02IHdvvIlyTmU3RBq7UhJVIglpLzzo2ed9F2
 5u/aVH3y
 =tfPb
 -----END PGP SIGNATURE-----

Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC-related driver updates from Olof Johansson:
 "Various driver updates for platforms. A bulk of this is smaller fixes
  or cleanups, but some of the new material this time around is:

   - Support for Nvidia Tegra234 SoC

   - Ring accelerator support for TI AM65x

   - PRUSS driver for TI platforms

   - Renesas support for R-Car V3U SoC

   - Reset support for Cortex-M4 processor on i.MX8MQ

  There are also new socinfo entries for a handful of different SoCs and
  platforms"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (131 commits)
  drm/mediatek: reduce clear event
  soc: mediatek: cmdq: add clear option in cmdq_pkt_wfe api
  soc: mediatek: cmdq: add jump function
  soc: mediatek: cmdq: add write_s_mask value function
  soc: mediatek: cmdq: add write_s value function
  soc: mediatek: cmdq: add read_s function
  soc: mediatek: cmdq: add write_s_mask function
  soc: mediatek: cmdq: add write_s function
  soc: mediatek: cmdq: add address shift in jump
  soc: mediatek: mtk-infracfg: Fix kerneldoc
  soc: amlogic: pm-domains: use always-on flag
  reset: sti: reset-syscfg: fix struct description warnings
  reset: imx7: add the cm4 reset for i.MX8MQ
  dt-bindings: reset: imx8mq: add m4 reset
  reset: Fix and extend kerneldoc
  reset: reset-zynqmp: Added support for Versal platform
  dt-bindings: reset: Updated binding for Versal reset driver
  reset: imx7: Support module build
  soc: fsl: qe: Remove unnessesary check in ucc_set_tdm_rxtx_clk
  soc: fsl: qman: convert to use be32_add_cpu()
  ...
2020-10-24 10:39:22 -07:00
Linus Torvalds
e731f3146f ARM: SoC platform updates
SoC changes, a substantial part of this is cleanup of some of the older
 platforms that used to have a bunch of board files. In particular:
 
  - Removal of non-DT i.MX platforms that haven't seen activity in years,
    it's time to remove them.
  - A bunch of cleanup and removal of platform data for TI/OMAP platforms,
    moving over to genpd for power/reset control (yay!)
  - Major cleanup of Samsung S3C24xx and S3C64xx platforms, moving them
    closer to multiplatform support (not quite there yet, but getting
    close).
 
 THere are a few other changes too, smaller fixlets, etc. For new
 platform support, the primary ones re:
 
  - New SoC: Hisilicon SD5203, ARM926EJ-S platform.
  - Cpufreq support for i.MX7ULP
 -----BEGIN PGP SIGNATURE-----
 
 iQJDBAABCgAtFiEElf+HevZ4QCAJmMQ+jBrnPN6EHHcFAl+TT4gPHG9sb2ZAbGl4
 b20ubmV0AAoJEIwa5zzehBx322MP/1mI56SyOFx30AqtWBPSjHJp+DzhOObyb4vD
 ndYuicBIn9tJwvVRBBZkfsbIU8EENVwrN3hOpesaj9L7xiqOqKakcnyC1REYmpIs
 8XBDfdZzy5PrMHIu3fF1ZDCQyO7KndGf5DfLVxJtcf1tSPQyQCuIA3FtS6d8Bxnz
 r491+om67ucnlFD5X0Spm3RdZH+ECmXx2iXwoS0Zi7P+X+S+ovG8wBV/X0ggeoBc
 Zgi4W01SiRupmSVZ6PA7FvWaLGQErQAALQOcFtMcFgjeWzc1v2QzcURELH8JW7ro
 72AH9st1Kvi3hoN2HNNzUnNUdQvZ+AdH8skMIpN/e1cBYqYStAF3gm/R9h+iVHbG
 GMmgzXHAFErfAW2UcF8tq1CzvQ5ChcTLNXdeoa8CeQbcDfocF3EyuKSPuDH+ve0H
 kk4tPesTAc6XCEVwLaGnoC75sdum5mSi8h9vqhln2KCdeTY7jxzH9YGHjm71Supb
 kV9vqo5Q5U/c5l2nU4r5q/DZdIahKsk3HIQZ0iG7BifAzamaTh4uyLVjtM6HSwNz
 tdHZaxoHd/PLI5IoeggFelx6qgvK5qVRLP0evgOdTLRFLj/ZbrOf0Q7DjdTy2BjZ
 Lgq461QqNapOzxq43G2IDT2+P62Q1+d+YLCKBgaGQaJicyU5m9STCNo3UBb1qH1h
 W6UwGF5z
 =0+Ee
 -----END PGP SIGNATURE-----

Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC platform updates from Olof Johansson:
 "SoC changes, a substantial part of this is cleanup of some of the
  older platforms that used to have a bunch of board files.

  In particular:

   - Remove non-DT i.MX platforms that haven't seen activity in years,
     it's time to remove them.

   - A bunch of cleanup and removal of platform data for TI/OMAP
     platforms, moving over to genpd for power/reset control (yay!)

   - Major cleanup of Samsung S3C24xx and S3C64xx platforms, moving them
     closer to multiplatform support (not quite there yet, but getting
     close).

  There are a few other changes too, smaller fixlets, etc. For new
  platform support, the primary ones are:

   - New SoC: Hisilicon SD5203, ARM926EJ-S platform.

   - Cpufreq support for i.MX7ULP"

* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (121 commits)
  ARM: mstar: Select MStar intc
  ARM: stm32: Replace HTTP links with HTTPS ones
  ARM: debug: add UART early console support for SD5203
  ARM: hisi: add support for SD5203 SoC
  ARM: omap3: enable off mode automatically
  clk: imx: imx35: Remove mx35_clocks_init()
  clk: imx: imx31: Remove mx31_clocks_init()
  clk: imx: imx27: Remove mx27_clocks_init()
  ARM: imx: Remove unused definitions
  ARM: imx35: Retrieve the IIM base address from devicetree
  ARM: imx3: Retrieve the AVIC base address from devicetree
  ARM: imx3: Retrieve the CCM base address from devicetree
  ARM: imx31: Retrieve the IIM base address from devicetree
  ARM: imx27: Retrieve the CCM base address from devicetree
  ARM: imx27: Retrieve the SYSCTRL base address from devicetree
  ARM: s3c64xx: bring back notes from removed debug-macro.S
  ARM: s3c24xx: fix Wunused-variable warning on !MMU
  ARM: samsung: fix PM debug build with DEBUG_LL but !MMU
  MAINTAINERS: mark linux-samsung-soc list non-moderated
  ARM: imx: Remove remnant board file support pieces
  ...
2020-10-24 10:33:08 -07:00
Linus Torvalds
1f70935f63 ARM: SoC fixes
I had queued up a batch of fixes that got a bit close to the release for
 sending in before the merge window opened, so I'm including them in the
 batch of pull requests instead. They're mostly smaller DT tweaks and
 fixes, the usual mix that we tend to have through the releases.
 -----BEGIN PGP SIGNATURE-----
 
 iQJDBAABCgAtFiEElf+HevZ4QCAJmMQ+jBrnPN6EHHcFAl+TTg8PHG9sb2ZAbGl4
 b20ubmV0AAoJEIwa5zzehBx3kQUP/j1HTcEOghLsUPAiV+kz1qEWjS1tcm4/OV+b
 +Tp4pQh5Fy++iXS9yWmCgr/kMxJ4EQkCZERO+8a1VNBms/+0j3KiFuiGsZo0rKZU
 QdJvY3q8JYoLYdbyYJ8B7WAT6oS0giBoskGT6FRiwPC7uqM7va1KZOtNeESblt+6
 Ty4w5ognXbAvSLz+2VaTZTLbO7fbvd3oSwmbnN7n/qhoRPwaNExJHXTI057ekh4Y
 XqjGbYYTwY+Cdm8DkI1Dz2EPKegmSaVxS7+xzacNosx0559qe3pqrZ5OqrTui00Y
 /2T5caepAAjdEQsX6es2+mKRRXXWPRJMzHegv/mWvqJ68DPJZLgoHFcY2xy4cclr
 ALyc96rEbJTQw5jgoJO1waD6vMZOA7EqE3IXREtxcK8xYRvnK6Od8BJt7lCvB7jN
 Ws6U8udqPmeC+PUV9yhBhS8eR/S8MjeQfPK9h0xqqLEhHXqFTeqLHk3EompUaIsy
 BwPmPuZI7MBrtwXvrpbdd6I2iw/7XetIrtvSO6Z/d7iZYlf49WJhh6gBtPRnOKGX
 zOc90ohFjw/oMFoMpCHsXzyzrwtd/AUqEu/ZRV/yr4yvkpjfpwIRN/cTsN32nRYy
 Oi3BTSxow88U7CxZTwkWtwoB+alJ0ZKh3QeyLa/dwiMgj+eUc900kZLqroEMNXO1
 1JWG9qL4
 =tvbv
 -----END PGP SIGNATURE-----

Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC fixes from Olof Johansson:
 "I had queued up a batch of fixes that got a bit close to the release
  for sending in before the merge window opened, so I'm including them
  in the merge window batch instead.

  Mostly smaller DT tweaks and fixes, the usual mix that we tend to have
  through the releases"

* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
  ARM: dts: iwg20d-q7-common: Fix touch controller probe failure
  ARM: OMAP2+: Restore MPU power domain if cpu_cluster_pm_enter() fails
  ARM: dts: am33xx: modify AM33XX_IOPAD for #pinctrl-cells = 2
  soc: actions: include header to fix missing prototype
  arm64: dts: ti: k3-j721e: Rename mux header and update macro names
  soc: qcom: pdr: Fixup array type of get_domain_list_resp message
  arm64: dts: qcom: pm660: Fix missing pound sign in interrupt-cells
  arm64: dts: qcom: kitakami: Temporarily disable SDHCI1
  arm64: dts: sdm630: Temporarily disable SMMUs by default
  arm64: dts: sdm845: Fixup OPP table for all qup devices
  arm64: dts: allwinner: h5: remove Mali GPU PMU module
  ARM: dts: sun8i: r40: bananapi-m2-ultra: Fix dcdc1 regulator
  soc: xilinx: Fix error code in zynqmp_pm_probe()
2020-10-24 10:26:06 -07:00
Vitaly Kuznetsov
77377064c3 KVM: ioapic: break infinite recursion on lazy EOI
During shutdown the IOAPIC trigger mode is reset to edge triggered
while the vfio-pci INTx is still registered with a resampler.
This allows us to get into an infinite loop:

ioapic_set_irq
  -> ioapic_lazy_update_eoi
  -> kvm_ioapic_update_eoi_one
  -> kvm_notify_acked_irq
  -> kvm_notify_acked_gsi
  -> (via irq_acked fn ptr) irqfd_resampler_ack
  -> kvm_set_irq
  -> (via set fn ptr) kvm_set_ioapic_irq
  -> kvm_ioapic_set_irq
  -> ioapic_set_irq

Commit 8be8f932e3 ("kvm: ioapic: Restrict lazy EOI update to
edge-triggered interrupts", 2020-05-04) acknowledges that this recursion
loop exists and tries to avoid it at the call to ioapic_lazy_update_eoi,
but at this point the scenario is already set, we have an edge interrupt
with resampler on the same gsi.

Fortunately, the only user of irq ack notifiers (in addition to resamplefd)
is i8254 timer interrupt reinjection.  These are edge-triggered, so in
principle they would need the call to kvm_ioapic_update_eoi_one from
ioapic_lazy_update_eoi, but they already disable AVIC(*), so they don't
need the lazy EOI behavior.  Therefore, remove the call to
kvm_ioapic_update_eoi_one from ioapic_lazy_update_eoi.

This fixes CVE-2020-27152.  Note that this issue cannot happen with
SR-IOV assigned devices because virtual functions do not have INTx,
only MSI.

Fixes: f458d039db ("kvm: ioapic: Lazy update IOAPIC EOI")
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Tested-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-10-24 04:42:06 -04:00
Paolo Bonzini
a3ff25fc3c KVM: vmx: rename pi_init to avoid conflict with paride
allyesconfig results in:

ld: drivers/block/paride/paride.o: in function `pi_init':
(.text+0x1340): multiple definition of `pi_init'; arch/x86/kvm/vmx/posted_intr.o:posted_intr.c:(.init.text+0x0): first defined here
make: *** [Makefile:1164: vmlinux] Error 1

because commit:

commit 8888cdd099
Author: Xiaoyao Li <xiaoyao.li@intel.com>
Date:   Wed Sep 23 11:31:11 2020 -0700

    KVM: VMX: Extract posted interrupt support to separate files

added another pi_init(), though one already existed in the paride code.

Reported-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-10-24 04:09:54 -04:00
Sean Christopherson
764388ce59 KVM: x86/mmu: Avoid modulo operator on 64-bit value to fix i386 build
Replace a modulo operator with the more common pattern for computing the
gfn "offset" of a huge page to fix an i386 build error.

  arch/x86/kvm/mmu/tdp_mmu.c:212: undefined reference to `__umoddi3'

In fact, almost all of tdp_mmu.c can be elided on 32-bit builds, but
that is a much larger patch.

Fixes: 2f2fad0897 ("kvm: x86/mmu: Add functions to handle changed TDP SPTEs")
Reported-by: Daniel Díaz <daniel.diaz@linaro.org>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Message-Id: <20201024031150.9318-1-sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-10-24 04:05:40 -04:00
Linus Torvalds
f11901ed72 Fixes for 5.10-rc1:
- Make fallocate check the alignment of its arguments against the
 fundamental allocation unit of the volume the file lives on, so that we
 don't trigger the fs' alignment checks.
 - Cancel unprocessed log intents immediately when log recovery fails, to
 avoid a log deadlock.
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEUzaAxoMeQq6m2jMV+H93GTRKtOsFAl+QxEoACgkQ+H93GTRK
 tOsBPBAAijxKkGCQ259L3clZ944dXWzsYlbtX5ojekSls1tCVBcViB4E/I78o65i
 21ZMN+/Ax0wrrQ4Z9qLc/rFD4mChNRlcPToHL+5EJpHcocaH8ty/IQENVp+wg1Za
 4572K8tjaZ8sm2ND92oHklHxdQxgiuCDuoYmCK8JG0xBdd0kN0nsMxd8RKZxZ+ka
 omcPTaBQuYiAi3mbhaWmCmh8L4Zclrr/TY7wA8F1qnb7jwSstaAu3Vk7u1e3TR8H
 GET5BrOsIp8QOqGXc/dxy4D0pbNHzs1IOxIIRnGnWgsy0Khm2V/C3XqRJind+mvj
 8v20NtMas6Suf4UN89ZaVQhQN7yuevBBUiM4aGkkR7McGIxZmF9Vicdle0hPDMn6
 ILMU9ixsEuBtlCyONscR31ItL1+hWoZxabY+eiUTV6ZhDZsOspi2ygxnMKVUtdBD
 oX7h05FCSaxv0fwXIozyjfXQ4QJQweQDYSRU7TAPWKLjCwDe7q4EuyBgRHv4KuIf
 1/Ii5aTQOtsI4VkfOqOpm+PfkSW90yeaMImysgWHituPa7pftU4q+6st3x9T5YTi
 Qdu1tNxYNjSrN7fA+oPiwL7DJ+HvgCORpZc9C35Vtq7ZAno3AcMuoG2TOyvfhVdp
 Z8hWE0yfWs5VJCQaF+U8GoohNdanHc6pAat/Md5/xP9w3kRsh14=
 =Bipc
 -----END PGP SIGNATURE-----

Merge tag 'xfs-5.10-merge-7' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

Pull xfs fixes from Darrick Wong:
 "Two bug fixes that trickled in during the merge window:

   - Make fallocate check the alignment of its arguments against the
     fundamental allocation unit of the volume the file lives on, so
     that we don't trigger the fs' alignment checks.

   - Cancel unprocessed log intents immediately when log recovery fails,
     to avoid a log deadlock"

* tag 'xfs-5.10-merge-7' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  xfs: cancel intents immediately if process_intents fails
  xfs: fix fallocate functions when rtextsize is larger than 1
2020-10-23 17:15:06 -07:00
Linus Torvalds
c80e42a496 A handful of late-arriving documentation fixes.
-----BEGIN PGP SIGNATURE-----
 
 iQFDBAABCAAtFiEEIw+MvkEiF49krdp9F0NaE2wMflgFAl+TK60PHGNvcmJldEBs
 d24ubmV0AAoJEBdDWhNsDH5YrTMIAJSEchjBnlWOzvW/YmdhWz8+O3+CDPNIiJ2J
 01tybiOBj64n0zMP7K6bN8IEjyRIed6L3vBsJxyIOGajkjekJZSqpBT9THy+AJnW
 ie72nA7DNYucdik8CWCKjyzylunVGfD/ju5uI4o4yBMTvliDlz9ZWIepF1fprfCb
 rTTyj5o+lsP11EjSSPw7RQIAHYCzFhBRanHqijGQnuEmnNKo+HxULcMwIsAtPjL8
 wAgZyi6sr2kllk5ZsGaU8eSwiM4SCcuvOo9W36Eg0bKQnutUClGbAVL0UKy9yFd+
 jJXTNDHGs/tBewSVyAmNa90WUORvRASdugI0hz1DdPt4qFIDdTQ=
 =+uur
 -----END PGP SIGNATURE-----

Merge tag 'docs-5.10-2' of git://git.lwn.net/linux

Pull documentation fixes from Jonathan Corbet:
 "A handful of late-arriving documentation fixes"

* tag 'docs-5.10-2' of git://git.lwn.net/linux:
  docs: Add two missing entries in vm sysctl index
  docs/vm: trivial fixes to several spelling mistakes
  docs: submitting-patches: describe preserving review/test tags
  Documentation: Chinese translation of Documentation/arm64/hugetlbpage.rst
  Documentation: x86: fix a missing word in x86_64/mm.rst.
  docs: driver-api: remove a duplicated index entry
  docs: lkdtm: Modernize and improve details
  docs: deprecated.rst: Expand str*cpy() replacement notes
  docs/cpu-load: format the example code.
2020-10-23 17:13:53 -07:00
Linus Torvalds
a5e5c274c9 ring-buffer fix
The success return value of ring_buffer_resize() is stated to be zero,
 and checked that way. But it is incorrectly returning the size allocated.
 
 Also, a fix to a comment.
 -----BEGIN PGP SIGNATURE-----
 
 iIoEABYIADIWIQRRSw7ePDh/lE+zeZMp5XQQmuv6qgUCX5LnlRQccm9zdGVkdEBn
 b29kbWlzLm9yZwAKCRAp5XQQmuv6qtPxAP439tmV1wWK4uBF6TLBahaPdj0tGe5b
 NT/ASnYjokZKWgEA//vmUBMMmNBohcd8DkkTu8Pp3tkc2b4RLR5WJIpXGwk=
 =1Og+
 -----END PGP SIGNATURE-----

Merge tag 'trace-v5.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull tracing ring-buffer fix from Steven Rostedt:
 "The success return value of ring_buffer_resize() is stated to be
  zero and checked that way.

  But it was incorrectly returning the size allocated.

  Also, a fix to a comment"

* tag 'trace-v5.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  ring-buffer: Update the description for ring_buffer_wait
  ring-buffer: Return 0 on success from ring_buffer_resize()
2020-10-23 17:09:38 -07:00
Linus Torvalds
b76f733c3f More ACPI updates for 5.10-rc1
- Fix ACPICA code build after recent changes related to accessing
    GPE registers (Rafael Wysocki).
 
  - Clean up DPTF part of the ACPI Kconfig (Rafael Wysocki).
 
  - Work around a reboot issue related to RESET_REG (Zhang Rui).
 
  - Prevent ACPI debug module from attemtping to run (and crashing)
    when ACPI is disabled (Jamie Iles).
 
  - Drop confusing comment from the ACPI processor driver (Alex Hung).
 
  - Drop a few unreachable break statements (Tom Rix).
 -----BEGIN PGP SIGNATURE-----
 
 iQJGBAABCAAwFiEE4fcc61cGeeHD/fCwgsRv/nhiVHEFAl+TEBMSHHJqd0Byand5
 c29ja2kubmV0AAoJEILEb/54YlRx28QP/iGAvDO/bKN8YTbs2QHknwoSCm5m/+ac
 GsjO0CmvvtszeDW8saVOuvKCFHglVXKOoLhDWTU3DC9DMQdPpFrvUw4541ocVfFj
 v8kPaOfz2bbOuxnCgHsCJ/cc4VvRFbT7MvK7zsOBr3usdoTSo793MIS84UJxrrFR
 WMr/DGJesPSRXuMafoMEJCqDufNA4aEdIC0ouJrCe9mMGWlj2UyJwRx/DY3W/2JX
 wdb3cB5XQ8AOfBy1aRI8FkFEoysAnbQkAels4Sg6sspyX/0wEsbwJINPkkYRx9Cf
 bjXbrbIMSdjrVd7xT9aIYTGrQ0C5YebmZbKKGt8Gygn1MIE/sQiWNWxX350by0Zy
 S99K7PtXtiv5+gbpoJiF6SVrDh7Pv1nzPIl0tfjjWHKfKh+tYXZhpnznZ0CEtuSY
 5pOllbYzE/5YV1Liv3E+C/i0/mbKtC0PPSKUlfshn3Uqphgx+PfB47/iswpEV9vg
 FAU/ALkU8vC1cAutI1WQs9q5R7SCEbikBD8fTLxucovxToWv0oxTnlPOYjh88fcK
 rdPPPj6uu+sb2crBDwxcrvTithzHUlGhHwikg5yxfTUHuCbX7hOA7ZttPisw+q0B
 ujyJA8Pssgt2RLrs4TllSPzcB6HjvBV+/yusrVLomWoKaJFEUesQz1O3CkIYztOG
 6gjB5UALU9+Q
 =yEtH
 -----END PGP SIGNATURE-----

Merge tag 'acpi-5.10-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull more ACPI updates from Rafael Wysocki:
 "These include an ACPICA code build fix related to recent GPE register
  access changes, a Kconfig cleanup related to the Dynamic Platform and
  Thremal Framework (DPTF) support, a reboot issue workaround, a debug
  module fix and a couple of janitorial changes.

  Specifics:

   - Fix ACPICA code build after recent changes related to accessing GPE
     registers (Rafael Wysocki).

   - Clean up DPTF part of the ACPI Kconfig (Rafael Wysocki).

   - Work around a reboot issue related to RESET_REG (Zhang Rui).

   - Prevent ACPI debug module from attemtping to run (and crashing)
     when ACPI is disabled (Jamie Iles).

   - Drop confusing comment from the ACPI processor driver (Alex Hung).

   - Drop a few unreachable break statements (Tom Rix)"

* tag 'acpi-5.10-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: utils: remove unreachable breaks
  ACPICA: Add missing type casts in GPE register access code
  ACPI: DPTF: Add ACPI_DPTF Kconfig menu
  ACPI: DPTF: Fix participant driver names
  ACPI: processor: remove comment regarding string _UID support
  ACPI: reboot: Avoid racing after writing to ACPI RESET_REG
  ACPI: debug: don't allow debugging when ACPI is disabled
2020-10-23 16:38:36 -07:00
Linus Torvalds
41f762a15a More power management updates for 5.10-rc1
- Move the AVS drivers to new platform-specific locations and get
    rid of the drivers/power/avs directory (Ulf Hansson).
 
  - Add on/off notifiers and idle state accounting support to the
    generic power domains (genpd) framework (Ulf Hansson, Lina Iyer).
 
  - Ulf will maintain the PM domain part of cpuidle-psci (Ulf Hansson).
 
  - Make intel_idle disregard ACPI _CST if it cannot use the data
    returned by that method (Mel Gorman).
 
  - Modify intel_pstate to avoid leaving useless sysfs directory
    structure behind if it cannot be registered (Chen Yu).
 
  - Fix domain detection in the RAPL power capping driver and prevent
    it from failing to enumerate the Psys RAPL domain (Zhang Rui).
 
  - Allow acpi-cpufreq to use ACPI _PSD information with Family 19 and
    later AMD chips (Wei Huang).
 
  - Update the driver assumptions comment in intel_idle and fix a
    kerneldoc comment in the runtime PM framework (Alexander Monakov,
    Bean Huo).
 
  - Avoid unnecessary resets of the cached frequency in the schedutil
    cpufreq governor to reduce overhead (Wei Wang).
 
  - Clean up the cpufreq core a bit (Viresh Kumar).
 
  - Make assorted minor janitorial changes (Daniel Lezcano, Geert
    Uytterhoeven, Hubert Jasudowicz, Tom Rix).
 
  - Clean up and optimize the cpupower utility somewhat (Colin Ian
    King, Martin Kaistra).
 -----BEGIN PGP SIGNATURE-----
 
 iQJGBAABCAAwFiEE4fcc61cGeeHD/fCwgsRv/nhiVHEFAl+TD4gSHHJqd0Byand5
 c29ja2kubmV0AAoJEILEb/54YlRx3AgP/0Fpi50+Kggr7pIXKElwg7ECJA0nOLT6
 gp4Vc/J/3r6zqK0ANDgCRlEMckAT61ukll+eU+BlavBrI4ZYj/Homi0+u53t1GjM
 AOwj1SmQgSBcBavWsBOc8+12X6wYLzyQbyWc53oYH5os537n8s7zkSZuSBcGFUgb
 wWF4xOeuW/ETsxAzEYmY7LvtBeEmo3UjV0fZPPbo/ro5EHDaOpvO/4EUDjCQxR6b
 CvyjgLlxuAOFWG/B5lVTCx7S6MmBjHXUIFUizt+TA6YjyGd0mG0i0f7mgzs6hqUD
 gzERDSlehBC3zPh5O35HNGUG8ulvDi9+ugxuckFHu/j4wEeZswp8AuIpdLI6Mcnc
 LDb+LTeypAB5d1fzHeSziv8AL08cUAS6QT+q96whYibQs6WA1mE9yXECyg6ZGsLt
 1KPAc8KD4ojwjo9vtk9VU0ZaUcVBMnqyK+GK929l0nXohw2Fae6X/NlpQ0D7joZA
 NM+dWMXpHy6tuVOgdUmrmN+P6vWd8ApWBeufkUFsCzrh3zG57yVaLl2SAjEtpKh0
 Emr/kJ8Ox8cf++6mGKseR2ZbkGn0Tz2GD5l3hIAGnIv9Nda3YgCc6RyV7U9se7OW
 2xnQvrgXqQKyjjziptVFqDotcC/KXFACr3YZX6GlW675NOMXSGk1ZYI3FbrsM8yd
 0/zq7PyYmb0D
 =TFKg
 -----END PGP SIGNATURE-----

Merge tag 'pm-5.10-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull more power management updates from Rafael Wysocki:
 "First of all, the adaptive voltage scaling (AVS) drivers go to new
  platform-specific locations as planned (this part was reported to have
  merge conflicts against the new arm-soc updates in linux-next).

  In addition to that, there are some fixes (intel_idle, intel_pstate,
  RAPL, acpi_cpufreq), the addition of on/off notifiers and idle state
  accounting support to the generic power domains (genpd) code and some
  janitorial changes all over.

  Specifics:

   - Move the AVS drivers to new platform-specific locations and get rid
     of the drivers/power/avs directory (Ulf Hansson).

   - Add on/off notifiers and idle state accounting support to the
     generic power domains (genpd) framework (Ulf Hansson, Lina Iyer).

   - Ulf will maintain the PM domain part of cpuidle-psci (Ulf Hansson).

   - Make intel_idle disregard ACPI _CST if it cannot use the data
     returned by that method (Mel Gorman).

   - Modify intel_pstate to avoid leaving useless sysfs directory
     structure behind if it cannot be registered (Chen Yu).

   - Fix domain detection in the RAPL power capping driver and prevent
     it from failing to enumerate the Psys RAPL domain (Zhang Rui).

   - Allow acpi-cpufreq to use ACPI _PSD information with Family 19 and
     later AMD chips (Wei Huang).

   - Update the driver assumptions comment in intel_idle and fix a
     kerneldoc comment in the runtime PM framework (Alexander Monakov,
     Bean Huo).

   - Avoid unnecessary resets of the cached frequency in the schedutil
     cpufreq governor to reduce overhead (Wei Wang).

   - Clean up the cpufreq core a bit (Viresh Kumar).

   - Make assorted minor janitorial changes (Daniel Lezcano, Geert
     Uytterhoeven, Hubert Jasudowicz, Tom Rix).

   - Clean up and optimize the cpupower utility somewhat (Colin Ian
     King, Martin Kaistra)"

* tag 'pm-5.10-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (23 commits)
  PM: sleep: remove unreachable break
  PM: AVS: Drop the avs directory and the corresponding Kconfig
  PM: AVS: qcom-cpr: Move the driver to the qcom specific drivers
  PM: runtime: Fix typo in pm_runtime_set_active() helper comment
  PM: domains: Fix build error for genpd notifiers
  powercap: Fix typo in Kconfig "Plance" -> "Plane"
  cpufreq: schedutil: restore cached freq when next_f is not changed
  acpi-cpufreq: Honor _PSD table setting on new AMD CPUs
  PM: AVS: smartreflex Move driver to soc specific drivers
  PM: AVS: rockchip-io: Move the driver to the rockchip specific drivers
  PM: domains: enable domain idle state accounting
  PM: domains: Add curly braces to delimit comment + statement block
  PM: domains: Add support for PM domain on/off notifiers for genpd
  powercap/intel_rapl: enumerate Psys RAPL domain together with package RAPL domain
  powercap/intel_rapl: Fix domain detection
  intel_idle: Ignore _CST if control cannot be taken from the platform
  cpuidle: Remove pointless stub
  intel_idle: mention assumption that WBINVD is not needed
  MAINTAINERS: Add section for cpuidle-psci PM domain
  cpufreq: intel_pstate: Delete intel_pstate sysfs if failed to register the driver
  ...
2020-10-23 16:27:03 -07:00
Linus Torvalds
af995383eb SCSI misc on 20201023
The set of core changes here is Christoph's submission path cleanups.
 These introduced a couple of regressions when first proposed so they
 got held over from the initial merge window pull request to give more
 testing time, which they've now had and Syzbot has confirmed the
 regression it detected is fixed.  The other main changes are two
 driver updates (arcmsr, pm80xx) and assorted minor clean ups.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
 -----BEGIN PGP SIGNATURE-----
 
 iJwEABMIAEQWIQTnYEDbdso9F2cI+arnQslM7pishQUCX5MkQCYcamFtZXMuYm90
 dG9tbGV5QGhhbnNlbnBhcnRuZXJzaGlwLmNvbQAKCRDnQslM7pishRkuAPsEAR/W
 NS7J7j66rF2x15xGR2CNB4R6FEBSd/hdOPp7cQEA4rtLKKI53W4oydKsfTux6N6o
 MLZJIHM5nTitk++AVQs=
 =QgpC
 -----END PGP SIGNATURE-----

Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull more SCSI updates from James Bottomley:
 "The set of core changes here is Christoph's submission path cleanups.

  These introduced a couple of regressions when first proposed so they
  got held over from the initial merge window pull request to give more
  testing time, which they've now had and Syzbot has confirmed the
  regression it detected is fixed.

  The other main changes are two driver updates (arcmsr, pm80xx) and
  assorted minor clean ups"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (38 commits)
  scsi: qla2xxx: Fix return of uninitialized value in rval
  scsi: core: Set sc_data_direction to DMA_NONE for no-transfer commands
  scsi: sr: Initialize ->cmd_len
  scsi: arcmsr: Update driver version to v1.50.00.02-20200819
  scsi: arcmsr: Add support for ARC-1886 series RAID controllers
  scsi: arcmsr: Fix device hot-plug monitoring timer stop
  scsi: arcmsr: Remove unnecessary syntax
  scsi: pm80xx: Driver version update
  scsi: pm80xx: Increase the number of outstanding I/O supported to 1024
  scsi: pm80xx: Remove DMA memory allocation for ccb and device structures
  scsi: pm80xx: Increase number of supported queues
  scsi: sym53c8xx_2: Fix sizeof() mismatch
  scsi: isci: Fix a typo in a comment
  scsi: qla4xxx: Fix inconsistent format argument type
  scsi: myrb: Fix inconsistent format argument types
  scsi: myrb: Remove redundant assignment to variable timeout
  scsi: bfa: Fix error return in bfad_pci_init()
  scsi: fcoe: Simplify the return expression of fcoe_sysfs_setup()
  scsi: snic: Simplify the return expression of svnic_cq_alloc()
  scsi: fnic: Simplify the return expression of vnic_wq_copy_alloc()
  ...
2020-10-23 16:19:02 -07:00
Linus Torvalds
bd7e8c996f Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:

 - a new driver for ADC driven joysticks

 - a new Zintix touchscreen driver

 - enhancements to Intel SoC button array driver

 - support for F3A "function" in Synaptics RMI4 driver

 - assorted driver fixups

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (29 commits)
  Input: Add MAINTAINERS entry for SiS i2c touch input driver
  Input: evdev - per-client waitgroups
  Input: synaptics - enable InterTouch for ThinkPad T14 Gen 1
  Input: synaptics - enable InterTouch for ThinkPad P1/X1E gen 2
  Input: synaptics-rmi4 - support bootloader v8 in f34v7
  Input: synaptics-rmi4 - add support for F3A
  Input: synaptics-rmi4 - rename f30_data to gpio_data
  Input: add zinitix touchscreen driver
  dt-bindings: input/touchscreen: add bindings for zinitix
  Input: joystick - add ADC attached joystick driver.
  dt-bindings: input: Add docs for ADC driven joystick
  Input: sun4i-ps2 - fix handling of platform_get_irq() error
  Input: twl4030_keypad - fix handling of platform_get_irq() error
  Input: omap4-keypad - fix handling of platform_get_irq() error
  Input: ep93xx_keypad - fix handling of platform_get_irq() error
  Input: stmfts - fix a & vs && typo
  Input: imx6ul_tsc - unify open/close and PM paths
  Input: imx6ul_tsc - clean up some errors in imx6ul_tsc_resume()
  Input: elants_i2c - fix typo for an attribute to show calibration count
  Input: elants_i2c - report resolution of ABS_MT_TOUCH_MAJOR by FW information.
  ...
2020-10-23 16:16:31 -07:00
Linus Torvalds
40a03b750b sound fixes for 5.10-rc1
Just a few additional small and trivial fixes.
 -----BEGIN PGP SIGNATURE-----
 
 iQJCBAABCAAsFiEEIXTw5fNLNI7mMiVaLtJE4w1nLE8FAl+SkUgOHHRpd2FpQHN1
 c2UuZGUACgkQLtJE4w1nLE9ixA/9GMw908i3U2kzd3GcJNRZXZ6C1q9kJ/vbKI2u
 4l7G7cQ+VI5Yqd+ac3Dq8oe1bwkNyUDFtHwVDM7XXxbD0tOOT5WcZWss8nMMuZpM
 IRiYot0YpwV7QM80lB/YXHRLrUKT+3TG0RUgO0MO8ji6V4IkSbbhWVHp6B2qVLec
 2H3fkxA5OLy4d0fiwZHzuZo4fGLo82fXvvmjy8ZStqluJt6etgArQU9fsJNqE085
 RqQwlcfMvLhbyv5n9HAwt9aFa4PZoYdNdn0VHk6UiqKsdr5Vbob138lsDxVBvJbn
 qcE5CjoCaes87PdtxO4vcA5ykuIeMXOXUTFN/vSemU1zHnjioEzpvKixT5E9oR3g
 0AY2d5rZkTgcQnP9xyNJb2K6+NkEsu5OSWmg9OX2oU+Mvn+zazox0jGNIspoD1He
 9sJVPFWVd2p0ObQ8sLCD8L22EUNYaJpNyOkDq6A/R9lzxjL4u1jyrvdt+jqsXiCW
 jBVG+yDpqHij6GqQDiIA+dCr7ZAJuWUDIRlOU0R4I/UH9hdfuXvSEjhra1lU+1Ft
 KTtMjfyhodSR2e4zSUItRIetKpDDwwdXiBhK0DjEHnZl0LfryFNWh7KPErFL7L9o
 lWVHDmcRAsCx2PFJEJHpHONaUi6zyzcQ3UTYoDrzc5FEzbO+c7CyAtGJPsgzq9r5
 PFZM4X8=
 =sYVq
 -----END PGP SIGNATURE-----

Merge tag 'sound-fix-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "Just a few additional small and trivial fixes"

* tag 'sound-fix-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda - Fix the return value if cb func is already registered
  ALSA: usb-audio: Line6 Pod Go interface requires static clock rate quirk
  ALSA: hda/ca0132: make some const arrays static, makes object smaller
  ALSA: sparc: dbri: fix repeated word 'the'
2020-10-23 13:59:05 -07:00
Linus Torvalds
fc03b2d6a9 drm fixes (round two) for 5.10-rc1
fbcon/fonts:
 - Two patches to prevent OOB access
 
 ttm:
 - fix for evicition value range check
 
 amdgpu:
 - Sienna Cichlid fixes
 - MST manager resource leak fix
 - GPU reset fix
 
 amdkfd:
 - Luxmark fix for Navi1x
 
 i915:
 - Tweak initial DPCD backlight.enabled value (Sean)
 - Initialize reserved MOCS indices (Ayaz)
 - Mark initial fb obj as WT on eLLC machines to avoid rcu lockup (Ville)
 - Support parsing of oversize batches (Chris)
 - Delay execlists processing for TGL (Chris)
 - Use the active reference on the vma during error capture (Chris)
 - Widen CSB pointer (Chris)
 - Wait for CSB entries on TGL (Chris)
 - Fix unwind for scratch page allocation (Chris)
 - Exclude low patches of stolen memory (Chris)
 - Force VT'd workarounds when running as a guest OS (Chris)
 - Drop runtime-pm assert from vpgu io accessors (Chris)
 -----BEGIN PGP SIGNATURE-----
 
 iQIcBAABAgAGBQJfkhyvAAoJEAx081l5xIa+3qIQAKjvgIvuoLix+bl/gkOHwymv
 QHTXVA3Gi4Rup778L3k1GNppQX4/LE42Of9wnsZIELxG0vxKl59JGzlWJVld/rtJ
 ZXfoT5kh7Hh7kkiXnC2s11aqQSsgr25lfsY8gOWSPIGfwOn07JSMTkqPWlbwrOz2
 il6qlOlgfSNfXwn2NxSTzGxZMrgOyUvKNZczRXU9gSuuoTsEo4bAvS7/vEN4hazX
 DFQAZfd82PfcdAIkVzk/gOoaCQ6a9YgjOzg1RQ4gKhrj8UaWu4gUyJwWPjSMnLrh
 uP2RM3gU54MhVF3jHt+D0Trv2ti2zStD9wc4AEJwOVQZtcDSsgGduOdUs5Xc/1l5
 dBOvpumBmNxsYbVvvThijNeSx6Y5ybzI3iUp8SLDftiRZtwsXds2aRaskuVgMqj4
 MSBdOiZqoJudLjwCBHWKe328+r00X+f14Vi30Y0cy4VW59NxLG5D7qjc5BGqJw1q
 J3FQ/9uDh0lWbeKT/grapjP43IWcLApykZa3Rn6p2w0mW2+8Wht/WbrFYyNYGlzf
 aNS9RnknTaMYWpvZUZLVG83dJpn6Y9ooHa9L/blMzfCxpF6ftEYf+Iq2x8s0gprz
 tIq0xsGvBacsnQIOWRuHjuF87zibVbDp9ba+x78F/woyUqEhip+lBXaPofp132gQ
 HtIdQewvG9KcLZcoluO4
 =rAUM
 -----END PGP SIGNATURE-----

Merge tag 'drm-next-2020-10-23' of git://anongit.freedesktop.org/drm/drm

Pull more drm fixes from Dave Airlie:
 "This should be the last round of things for rc1, a bunch of i915
  fixes, some amdgpu, more font OOB fixes and one ttm fix just found
  reading code:

  fbcon/fonts:
   - Two patches to prevent OOB access

  ttm:
   - fix for evicition value range check

  amdgpu:
   - Sienna Cichlid fixes
   - MST manager resource leak fix
   - GPU reset fix

  amdkfd:
   - Luxmark fix for Navi1x

  i915:
   - Tweak initial DPCD backlight.enabled value (Sean)
   - Initialize reserved MOCS indices (Ayaz)
   - Mark initial fb obj as WT on eLLC machines to avoid rcu lockup (Ville)
   - Support parsing of oversize batches (Chris)
   - Delay execlists processing for TGL (Chris)
   - Use the active reference on the vma during error capture (Chris)
   - Widen CSB pointer (Chris)
   - Wait for CSB entries on TGL (Chris)
   - Fix unwind for scratch page allocation (Chris)
   - Exclude low patches of stolen memory (Chris)
   - Force VT'd workarounds when running as a guest OS (Chris)
   - Drop runtime-pm assert from vpgu io accessors (Chris)"

* tag 'drm-next-2020-10-23' of git://anongit.freedesktop.org/drm/drm: (31 commits)
  drm/amdgpu: correct the cu and rb info for sienna cichlid
  drm/amd/pm: remove the average clock value in sysfs
  drm/amd/pm: fix pp_dpm_fclk
  Revert drm/amdgpu: disable sienna chichlid UMC RAS
  drm/amd/pm: fix pcie information for sienna cichlid
  drm/amdkfd: Use same SQ prefetch setting as amdgpu
  drm/amd/swsmu: correct wrong feature bit mapping
  drm/amd/psp: Fix sysfs: cannot create duplicate filename
  drm/amd/display: Avoid MST manager resource leak.
  drm/amd/display: Revert "drm/amd/display: Fix a list corruption"
  drm/amdgpu: update golden setting for sienna_cichlid
  drm/amd/swsmu: add missing feature map for sienna_cichlid
  drm/amdgpu: correct the gpu reset handling for job != NULL case
  drm/amdgpu: add rlc iram and dram firmware support
  drm/amdgpu: add function to program pbb mode for sienna cichlid
  drm/i915: Drop runtime-pm assert from vgpu io accessors
  drm/i915: Force VT'd workarounds when running as a guest OS
  drm/i915: Exclude low pages (128KiB) of stolen from use
  drm/i915/gt: Onion unwind for scratch page allocation failure
  drm/ttm: fix eviction valuable range check.
  ...
2020-10-23 13:56:34 -07:00
Rasmus Villemoes
9c5743dff4 x86/uaccess: fix code generation in put_user()
Quoting https://gcc.gnu.org/onlinedocs/gcc/Local-Register-Variables.html:

  You can define a local register variable and associate it with a
  specified register...

  The only supported use for this feature is to specify registers for
  input and output operands when calling Extended asm (see Extended
  Asm). This may be necessary if the constraints for a particular
  machine don't provide sufficient control to select the desired
  register.

On 32-bit x86, this is used to ensure that gcc will put an 8-byte value
into the %edx:%eax pair, while all other cases will just use the single
register %eax (%rax on x86-64).  While the _ASM_AX actually just expands
to "%eax", note this comment next to get_user() which does something
very similar:

 * The use of _ASM_DX as the register specifier is a bit of a
 * simplification, as gcc only cares about it as the starting point
 * and not size: for a 64-bit value it will use %ecx:%edx on 32 bits
 * (%ecx being the next register in gcc's x86 register sequence), and
 * %rdx on 64 bits.

However, getting this to work requires that there is no code between the
assignment to the local register variable and its use as an input to the
asm() which can possibly clobber any of the registers involved -
including evaluation of the expressions making up other inputs.

In the current code, the ptr expression used directly as an input may
cause such code to be emitted.  For example, Sean Christopherson
observed that with KASAN enabled and ptr being current->set_child_tid
(from chedule_tail()), the load of current->set_child_tid causes a call
to __asan_load8() to be emitted immediately prior to the __put_user_4
call, and Naresh Kamboju reports that various mmstress tests fail on
KASAN-enabled builds.

It's also possible to synthesize a broken case without KASAN if one uses
"foo()" as the ptr argument, with foo being some "extern u64 __user
*foo(void);" (though I don't know if that appears in real code).

Fix it by making sure ptr gets evaluated before the assignment to
__val_pu, and add a comment that __val_pu must be the last thing
computed before the asm() is entered.

Cc: Sean Christopherson <sean.j.christopherson@intel.com>
Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Tested-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Fixes: d55564cfc2 ("x86: Make __put_user() generate an out-of-line call")
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-10-23 13:44:24 -07:00
Linus Torvalds
3cb12d27ff Fixes for 5.10-rc1 from the networking tree:
Cross-tree/merge window issues:
 
  - rtl8150: don't incorrectly assign random MAC addresses; fix late
    in the 5.9 cycle started depending on a return code from
    a function which changed with the 5.10 PR from the usb subsystem
 
 Current release - regressions:
 
  - Revert "virtio-net: ethtool configurable RXCSUM", it was causing
    crashes at probe when control vq was not negotiated/available
 
 Previous releases - regressions:
 
  - ixgbe: fix probing of multi-port 10 Gigabit Intel NICs with an MDIO
    bus, only first device would be probed correctly
 
  - nexthop: Fix performance regression in nexthop deletion by
    effectively switching from recently added synchronize_rcu()
    to synchronize_rcu_expedited()
 
  - netsec: ignore 'phy-mode' device property on ACPI systems;
    the property is not populated correctly by the firmware,
    but firmware configures the PHY so just keep boot settings
 
 Previous releases - always broken:
 
  - tcp: fix to update snd_wl1 in bulk receiver fast path, addressing
    bulk transfers getting "stuck"
 
  - icmp: randomize the global rate limiter to prevent attackers from
    getting useful signal
 
  - r8169: fix operation under forced interrupt threading, make the
    driver always use hard irqs, even on RT, given the handler is
    light and only wants to schedule napi (and do so through
    a _irqoff() variant, preferably)
 
  - bpf: Enforce pointer id generation for all may-be-null register
    type to avoid pointers erroneously getting marked as null-checked
 
  - tipc: re-configure queue limit for broadcast link
 
  - net/sched: act_tunnel_key: fix OOB write in case of IPv6 ERSPAN
    tunnels
 
  - fix various issues in chelsio inline tls driver
 
 Misc:
 
  - bpf: improve just-added bpf_redirect_neigh() helper api to support
    supplying nexthop by the caller - in case BPF program has already
    done a lookup we can avoid doing another one
 
  - remove unnecessary break statements
 
  - make MCTCP not select IPV6, but rather depend on it
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEE6jPA+I1ugmIBA4hXMUZtbf5SIrsFAl+R+5UACgkQMUZtbf5S
 Irt9KxAAiYme2aSvMOni0NQsOgQ5mVsy7tk0/4dyRqkAx0ggrfGcFuhgZYNm8ZKY
 KoQsQyn30Wb/2wAp1vX2I4Fod67rFyBfQg/8iWiEAu47X7Bj1lpPPJexSPKhF9/X
 e0TuGxZtoaDuV9C3Su/FOjRmnShGSFQu1SCyJThshwaGsFL3YQ0Ut07VRgRF8x05
 A5fy2SVVIw0JOQgV1oH0GP5oEK3c50oGnaXt8emm56PxVIfAYY0oq69hQUzrfMFP
 zV9R0XbnbCIibT8R3lEghjtXavtQTzK5rYDKazTeOyDU87M+yuykNYj7MhgDwl9Q
 UdJkH2OpMlJylEH3asUjz/+ObMhXfOuj/ZS3INtO5omBJx7x76egDZPMQe4wlpcC
 NT5EZMS7kBdQL8xXDob7hXsvFpuEErSUGruYTHp4H52A9ke1dRTH2kQszcKk87V3
 s+aVVPtJ5bHzF3oGEvfwP0DFLTF6WvjD0Ts0LmTY2DhpE//tFWV37j60Ni5XU21X
 fCPooihQbLOsq9D8zc0ydEvCg2LLWMXM5ovCkqfIAJzbGVYhnxJSryZwpOlKDS0y
 LiUmLcTZDoNR/szx0aJhVHdUUVgXDX/GsllHoc1w7ZvDRMJn40K+xnaF3dSMwtIl
 imhfc5pPi6fdBgjB0cFYRPfhwiwlPMQ4YFsOq9JvynJzmt6P5FQ=
 =ceke
 -----END PGP SIGNATURE-----

Merge tag 'net-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski:
 "Cross-tree/merge window issues:

   - rtl8150: don't incorrectly assign random MAC addresses; fix late in
     the 5.9 cycle started depending on a return code from a function
     which changed with the 5.10 PR from the usb subsystem

  Current release regressions:

   - Revert "virtio-net: ethtool configurable RXCSUM", it was causing
     crashes at probe when control vq was not negotiated/available

  Previous release regressions:

   - ixgbe: fix probing of multi-port 10 Gigabit Intel NICs with an MDIO
     bus, only first device would be probed correctly

   - nexthop: Fix performance regression in nexthop deletion by
     effectively switching from recently added synchronize_rcu() to
     synchronize_rcu_expedited()

   - netsec: ignore 'phy-mode' device property on ACPI systems; the
     property is not populated correctly by the firmware, but firmware
     configures the PHY so just keep boot settings

  Previous releases - always broken:

   - tcp: fix to update snd_wl1 in bulk receiver fast path, addressing
     bulk transfers getting "stuck"

   - icmp: randomize the global rate limiter to prevent attackers from
     getting useful signal

   - r8169: fix operation under forced interrupt threading, make the
     driver always use hard irqs, even on RT, given the handler is light
     and only wants to schedule napi (and do so through a _irqoff()
     variant, preferably)

   - bpf: Enforce pointer id generation for all may-be-null register
     type to avoid pointers erroneously getting marked as null-checked

   - tipc: re-configure queue limit for broadcast link

   - net/sched: act_tunnel_key: fix OOB write in case of IPv6 ERSPAN
     tunnels

   - fix various issues in chelsio inline tls driver

  Misc:

   - bpf: improve just-added bpf_redirect_neigh() helper api to support
     supplying nexthop by the caller - in case BPF program has already
     done a lookup we can avoid doing another one

   - remove unnecessary break statements

   - make MCTCP not select IPV6, but rather depend on it"

* tag 'net-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (62 commits)
  tcp: fix to update snd_wl1 in bulk receiver fast path
  net: Properly typecast int values to set sk_max_pacing_rate
  netfilter: nf_fwd_netdev: clear timestamp in forwarding path
  ibmvnic: save changed mac address to adapter->mac_addr
  selftests: mptcp: depends on built-in IPv6
  Revert "virtio-net: ethtool configurable RXCSUM"
  rtnetlink: fix data overflow in rtnl_calcit()
  net: ethernet: mtk-star-emac: select REGMAP_MMIO
  net: hdlc_raw_eth: Clear the IFF_TX_SKB_SHARING flag after calling ether_setup
  net: hdlc: In hdlc_rcv, check to make sure dev is an HDLC device
  bpf, libbpf: Guard bpf inline asm from bpf_tail_call_static
  bpf, selftests: Extend test_tc_redirect to use modified bpf_redirect_neigh()
  bpf: Fix bpf_redirect_neigh helper api to support supplying nexthop
  mptcp: depends on IPV6 but not as a module
  sfc: move initialisation of efx->filter_sem to efx_init_struct()
  mpls: load mpls_gso after mpls_iptunnel
  net/sched: act_tunnel_key: fix OOB write in case of IPv6 ERSPAN tunnels
  net/sched: act_gate: Unlock ->tcfa_lock in tc_setup_flow_action()
  net: dsa: bcm_sf2: make const array static, makes object smaller
  mptcp: MPTCP_IPV6 should depend on IPV6 instead of selecting it
  ...
2020-10-23 12:05:49 -07:00
Linus Torvalds
0adc313c4f Changes in gfs2:
* Use iomap for non-journaled buffered I/O.  This largely eliminates buffer
   heads on filesystems where the block size matches the page size.  Many thanks
   to Christoph Hellwig for this patch!
 * Fixes for some more journaled data filesystem bugs, found by running xfstests
   with data journaling on for all files (chattr +j $MNT) (Bob Peterson).
 * gfs2_evict_inode refactoring (Bob Peterson).
 * Use the statfs data in the journal during recovery instead of reading it in
   from the local statfs inodes (Abhi Das).
 * Several other minor fixes by various people.
 -----BEGIN PGP SIGNATURE-----
 
 iQJIBAABCAAyFiEEJZs3krPW0xkhLMTc1b+f6wMTZToFAl+S8QsUHGFncnVlbmJh
 QHJlZGhhdC5jb20ACgkQ1b+f6wMTZTqSwQ/+NaKp1Gh1YSQoukoFNJGNhLvdeMf4
 Em71ewCmPmqvNzixJ33U71Iob15ghzc78OHlum4xZYdrn/19Kwfa0sQi8OKV9Cow
 uXAio4iGpEEIyWdBf6CYU58do3hZErKCSf70FxfNIw/GR/wgmviXUVIKDRq4p5zf
 2VflkEqttwHc4OmP/wyvxEs16T8cOa86X57PzWwAGybij9+MufSRJE1mWgVsVFJu
 ASTQxy+T4kHWSUVOYs7hqpjluOdLl0rIJxwkt1HS1FG5kYt49h0qpRpfNL7VW6rs
 RFkdnOg2wpXSrjk66J/P+E5hqp6nexMVyTBGds1ajASfd5/GFMD5UFgk5EpVV/ey
 5+a44oRZEToqbToVa3XOumccfxUSjOcsg5hBYPI1GssBn85Uk1VH44mchb0mUGlY
 M8YuLcp5d2wuotPqtoyt8KpV0TmR7S4pv5Chh3Som6nQ9EtR2NZjtjEW2Cx6hJK5
 m43UxwYRKw4SowZgfKk3oEks6B+QrbKqDPzVGxXX4YP4tVlap4ygk9Uqoto9QZP7
 m/VP/xBtC50xn7EeTGrgiPrsOVX0ZNegTZ18KIYJudWxzV84s1XwHhPEOc/hTJJ0
 Ac4AF3k4lyG5WnXtvfP1L/QUWQOGvx+d6qNKLXcJqzFCAz9kfDGQYALtuQsIQOc9
 30IJ6Cp4lD37R+k=
 =C893
 -----END PGP SIGNATURE-----

Merge tag 'gfs2-for-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2

Pull gfs2 updates from Andreas Gruenbacher:

 - Use iomap for non-journaled buffered I/O. This largely eliminates
   buffer heads on filesystems where the block size matches the page
   size. Many thanks to Christoph Hellwig for this patch!

 - Fixes for some more journaled data filesystem bugs, found by running
   xfstests with data journaling on for all files (chattr +j $MNT) (Bob
   Peterson)

 - gfs2_evict_inode refactoring (Bob Peterson)

 - Use the statfs data in the journal during recovery instead of reading
   it in from the local statfs inodes (Abhi Das)

 - Several other minor fixes by various people

* tag 'gfs2-for-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2: (30 commits)
  gfs2: Recover statfs info in journal head
  gfs2: lookup local statfs inodes prior to journal recovery
  gfs2: Add fields for statfs info in struct gfs2_log_header_host
  gfs2: Ignore subsequent errors after withdraw in rgrp_go_sync
  gfs2: Eliminate gl_vm
  gfs2: Only access gl_delete for iopen glocks
  gfs2: Fix comments to glock_hash_walk
  gfs2: eliminate GLF_QUEUED flag in favor of list_empty(gl_holders)
  gfs2: Ignore journal log writes for jdata holes
  gfs2: simplify gfs2_block_map
  gfs2: Only set PageChecked if we have a transaction
  gfs2: don't lock sd_ail_lock in gfs2_releasepage
  gfs2: make gfs2_ail1_empty_one return the count of active items
  gfs2: Wipe jdata and ail1 in gfs2_journal_wipe, formerly gfs2_meta_wipe
  gfs2: enhance log_blocks trace point to show log blocks free
  gfs2: add missing log_blocks trace points in gfs2_write_revokes
  gfs2: rename gfs2_write_full_page to gfs2_write_jdata_page, remove parm
  gfs2: add validation checks for size of superblock
  gfs2: use-after-free in sysfs deregistration
  gfs2: Fix NULL pointer dereference in gfs2_rgrp_dump
  ...
2020-10-23 11:47:42 -07:00
Linus Torvalds
0613ed9190 30 cifs/smb3 fixes, including five for stable
-----BEGIN PGP SIGNATURE-----
 
 iQGzBAABCgAdFiEE6fsu8pdIjtWE/DpLiiy9cAdyT1EFAl+Rz5YACgkQiiy9cAdy
 T1FeQQv+LduIZadk/ijP+6329spw54qbLEXAmNPnaBYGiSMl+k9R98/hbu+6YOtI
 jaqRHtEpISbWt6MwWUPq+SWoHRD1cKg1CtI2k0mO4b128uIpjTd1EKk5Kd/7M7TD
 fpjHYyGnkHMpwKO+w8IAtGnGy0Ys17lLmgc4GHgMPwjY4U27s9o5ngRMlC0Bi4ue
 yyfZH7fCI7dfgbu8V6RqHP+lWoNuYOyp7/QRuKYBLnUUl8v7UVzT47cxhDkoGTyb
 0S+Pfyq+f2nUewRw/qmzNbb0+dQcyMREwV4x8y3sr7AOkuDDNK/U9LA++l3/ZclC
 hIvXFImnPlcUwGJdDGrBDzPEJW6abfPeJDjkrZtUH0QM2Rna5TeeyWQbXFOFE1QM
 awdy3UrrVHtEqCYnKNY/SvE6kd3jNi5aT6Daceh0LOHiJCF96Ij/L16TvpJktQwM
 da2BAddhFU5rP1g/pXdMmO+Dra+QyviyW+sVMNphZM1vvFeGrSmu5rxBP+BxvBw6
 ct3tUnSV
 =CqG0
 -----END PGP SIGNATURE-----

Merge tag '5.10-rc-smb3-fixes-part1' of git://git.samba.org/sfrench/cifs-2.6

Pull cifs updates from Steve French:

 - add support for recognizing special file types (char/block/fifo/
   symlink) for files created by Linux on WSL (a format we plan to move
   to as the default for creating special files on Linux, as it has
   advantages over the other current option, the SFU format) in readdir.

 - fix double queries to root directory when directory leases not
   supported (e.g. Samba)

 - fix querying mode bits (modefromsid mount option) for special file
   types

 - stronger encryption (gcm256), disabled by default until tested more
   broadly

 - allow querying owner when server reports 'well known SID' on query
   dir with SMB3.1.1 POSIX extensions

* tag '5.10-rc-smb3-fixes-part1' of git://git.samba.org/sfrench/cifs-2.6: (30 commits)
  SMB3: add support for recognizing WSL reparse tags
  cifs: remove bogus debug code
  smb3.1.1: fix typo in compression flag
  cifs: move smb version mount options into fs_context.c
  cifs: move cache mount options to fs_context.ch
  cifs: move security mount options into fs_context.ch
  cifs: add files to host new mount api
  smb3: do not try to cache root directory if dir leases not supported
  smb3: fix stat when special device file and mounted with modefromsid
  cifs: Print the address and port we are connecting to in generic_ip_connect()
  SMB3: Resolve data corruption of TCP server info fields
  cifs: make const array static, makes object smaller
  SMB3.1.1: Fix ids returned in POSIX query dir
  smb3: add dynamic trace point to trace when credits obtained
  smb3.1.1: do not fail if no encryption required but server doesn't support it
  cifs: Return the error from crypt_message when enc/dec key not found.
  smb3.1.1: set gcm256 when requested
  smb3.1.1: rename nonces used for GCM and CCM encryption
  smb3.1.1: print warning if server does not support requested encryption type
  smb3.1.1: add new module load parm enable_gcm_256
  ...
2020-10-23 11:41:39 -07:00
Linus Torvalds
c4728cfbed Refactored code for 5.10:
- Move the file range remap generic functions out of mm/filemap.c and
 fs/read_write.c and into fs/remap_range.c to reduce clutter in the first
 two files.
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEUzaAxoMeQq6m2jMV+H93GTRKtOsFAl+SADAACgkQ+H93GTRK
 tOtZPxAAjwh/wOD+QPWAlu2zs1qvq9aU5uU56nWZC86JXr5RTokc2DIIwHvsT28I
 Xr3Oya8hiegsIVohQWLQr7AhVe469G2iegTkn7YmmLJLfrwhtSYxvkYTNMI/Uyx3
 LzGRcaqg9QR6DnrEHzI9QfCHyKz73PMD26eJR1wLerVIIcMYIsg7xp3Yd6Y0G5iD
 VX9qJ15OZNnXlQelG8E/A44dggZPt10D20czD9f/N7ZIpPxrQQLonO08i2YhPlRz
 sqQT4RjkZoJeZGY2wv2+vGMsbUxTui7sJj7Zsk+ljfo8ByY/wy1nK2IM9xR0jeZx
 o/td9YcSzGEMan9Q4jSIwMYbgMLw/x79nNWpnFdRh4+xQYGGPfkGOseJ9Sm0SlW5
 P6zb2bWMxZkiE/xq/Dsxbnl5Obzk3xc8c1w4nsStsQTcgBTLFJupP626Ib+yythZ
 pOzWRc2wdH9f4Oy52kxO8GB8kg23abXMACgTfSpzqU9GtSIijoS/Z+AN36jWT890
 mkoLFsssRfufmalQX438c8XF94xD+tRCOkxgq9ud71kcWgQnUVzQWvCflkIfetEa
 jcw+uuChuPOaQ9x6M6Z7gGt+a2zYreyGAmTw67M32UsgXQGO/nCx7f2j/7raYitd
 ZJb/XoGB1aRfWKpWjaL+66ORmOFY7Uuq9UkRibtYzmR6iMknQcA=
 =DAPl
 -----END PGP SIGNATURE-----

Merge tag 'vfs-5.10-merge-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

Pull clone/dedupe/remap code refactoring from Darrick Wong:
 "Move the generic file range remap (aka reflink and dedupe) functions
  out of mm/filemap.c and fs/read_write.c and into fs/remap_range.c to
  reduce clutter in the first two files"

* tag 'vfs-5.10-merge-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  vfs: move the generic write and copy checks out of mm
  vfs: move the remap range helpers to remap_range.c
  vfs: move generic_remap_checks out of mm
2020-10-23 11:33:41 -07:00
Mauro Carvalho Chehab
94bd5719e4 ata: fix some kernel-doc markups
Some functions have different names between their prototypes
and the kernel-doc markup.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-10-23 12:20:32 -06:00
Mauro Carvalho Chehab
24f7bb8863 block: blk-mq: fix a kernel-doc markup
Fix a typo:
	blk_mq_run_hw_queue -> blk_mq_run_hw_queues

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-10-23 12:20:17 -06:00
Linus Torvalds
f9a705ad1c ARM:
- New page table code for both hypervisor and guest stage-2
 - Introduction of a new EL2-private host context
 - Allow EL2 to have its own private per-CPU variables
 - Support of PMU event filtering
 - Complete rework of the Spectre mitigation
 
 PPC:
 - Fix for running nested guests with in-kernel IRQ chip
 - Fix race condition causing occasional host hard lockup
 - Minor cleanups and bugfixes
 
 x86:
 - allow trapping unknown MSRs to userspace
 - allow userspace to force #GP on specific MSRs
 - INVPCID support on AMD
 - nested AMD cleanup, on demand allocation of nested SVM state
 - hide PV MSRs and hypercalls for features not enabled in CPUID
 - new test for MSR_IA32_TSC writes from host and guest
 - cleanups: MMU, CPUID, shared MSRs
 - LAPIC latency optimizations ad bugfixes
 
 For x86, also included in this pull request is a new alternative and
 (in the future) more scalable implementation of extended page tables
 that does not need a reverse map from guest physical addresses to
 host physical addresses.  For now it is disabled by default because
 it is still lacking a few of the existing MMU's bells and whistles.
 However it is a very solid piece of work and it is already available
 for people to hammer on it.
 -----BEGIN PGP SIGNATURE-----
 
 iQFIBAABCAAyFiEE8TM4V0tmI4mGbHaCv/vSX3jHroMFAl+S8dsUHHBib256aW5p
 QHJlZGhhdC5jb20ACgkQv/vSX3jHroM40Af+M46NJmuS5rcwFfybvK/c42KT6svX
 Co1NrZDwzSQ2mMy3WQzH9qeLvb+nbY4sT3n5BPNPNsT+aIDPOTDt//qJ2/Ip9UUs
 tRNea0MAR96JWLE7MSeeRxnTaQIrw/AAZC0RXFzZvxcgytXwdqBExugw4im+b+dn
 Dcz8QxX1EkwT+4lTm5HC0hKZAuo4apnK1QkqCq4SdD2QVJ1YE6+z7pgj4wX7xitr
 STKD6q/Yt/0ndwqS0GSGbyg0jy6mE620SN6isFRkJYwqfwLJci6KnqvEK67EcNMu
 qeE017K+d93yIVC46/6TfVHzLR/D1FpQ8LZ16Yl6S13OuGIfAWBkQZtPRg==
 =AD6a
 -----END PGP SIGNATURE-----

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM updates from Paolo Bonzini:
 "For x86, there is a new alternative and (in the future) more scalable
  implementation of extended page tables that does not need a reverse
  map from guest physical addresses to host physical addresses.

  For now it is disabled by default because it is still lacking a few of
  the existing MMU's bells and whistles. However it is a very solid
  piece of work and it is already available for people to hammer on it.

  Other updates:

  ARM:
   - New page table code for both hypervisor and guest stage-2
   - Introduction of a new EL2-private host context
   - Allow EL2 to have its own private per-CPU variables
   - Support of PMU event filtering
   - Complete rework of the Spectre mitigation

  PPC:
   - Fix for running nested guests with in-kernel IRQ chip
   - Fix race condition causing occasional host hard lockup
   - Minor cleanups and bugfixes

  x86:
   - allow trapping unknown MSRs to userspace
   - allow userspace to force #GP on specific MSRs
   - INVPCID support on AMD
   - nested AMD cleanup, on demand allocation of nested SVM state
   - hide PV MSRs and hypercalls for features not enabled in CPUID
   - new test for MSR_IA32_TSC writes from host and guest
   - cleanups: MMU, CPUID, shared MSRs
   - LAPIC latency optimizations ad bugfixes"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (232 commits)
  kvm: x86/mmu: NX largepage recovery for TDP MMU
  kvm: x86/mmu: Don't clear write flooding count for direct roots
  kvm: x86/mmu: Support MMIO in the TDP MMU
  kvm: x86/mmu: Support write protection for nesting in tdp MMU
  kvm: x86/mmu: Support disabling dirty logging for the tdp MMU
  kvm: x86/mmu: Support dirty logging for the TDP MMU
  kvm: x86/mmu: Support changed pte notifier in tdp MMU
  kvm: x86/mmu: Add access tracking for tdp_mmu
  kvm: x86/mmu: Support invalidate range MMU notifier for TDP MMU
  kvm: x86/mmu: Allocate struct kvm_mmu_pages for all pages in TDP MMU
  kvm: x86/mmu: Add TDP MMU PF handler
  kvm: x86/mmu: Remove disallowed_hugepage_adjust shadow_walk_iterator arg
  kvm: x86/mmu: Support zapping SPTEs in the TDP MMU
  KVM: Cache as_id in kvm_memory_slot
  kvm: x86/mmu: Add functions to handle changed TDP SPTEs
  kvm: x86/mmu: Allocate and free TDP MMU roots
  kvm: x86/mmu: Init / Uninit the TDP MMU
  kvm: x86/mmu: Introduce tdp_iter
  KVM: mmu: extract spte.h and spte.c
  KVM: mmu: Separate updating a PTE from kvm_set_pte_rmapp
  ...
2020-10-23 11:17:56 -07:00
Linus Torvalds
9313f80263 vhost,vdpa,virtio: cleanups, fixes
A very quiet cycle, no new features.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
 -----BEGIN PGP SIGNATURE-----
 
 iQFDBAABCAAtFiEEXQn9CHHI+FuUyooNKB8NuNKNVGkFAl+QSnEPHG1zdEByZWRo
 YXQuY29tAAoJECgfDbjSjVRpvzoIAIAJPV0OTShpvv8JXmBDngDGysuAcQah+d3u
 g2vDzRb9J3lYH7hJgkHans/4s3wYtWcJei7tgU2UkSODTSPK/l+hp4sTuVowsqPD
 Cvp6k7/ipzJscl2AAiflSn5gBUORHXU8oxEeDvUAJbVkSwWdKvKgvDGPbVxZCU0V
 kGlUctRq96e/TQCNekVthZ1Q4cgPKgx4zMFZjLSbj0yDN2JJJp+0Y+y5NJ5u9eTE
 VneaFZOJxlhjmNZZP1Bu/MOcvgPbjxZjDRRUP75sv8c7IkoGiubHbbwcDhbE5gVd
 Ve/ByiFTJe9ydKVVLm1O81AqO7uB13W46LjF5yotyk/dKX6s5eU=
 =1Gdh
 -----END PGP SIGNATURE-----

Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost

Pull virtio updates from Michael Tsirkin:
 "vhost, vdpa, and virtio cleanups and fixes

  A very quiet cycle, no new features"

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
  MAINTAINERS: add URL for virtio-mem
  vhost_vdpa: remove unnecessary spin_lock in vhost_vring_call
  vringh: fix __vringh_iov() when riov and wiov are different
  vdpa/mlx5: Setup driver only if VIRTIO_CONFIG_S_DRIVER_OK
  s390: virtio: PV needs VIRTIO I/O device protection
  virtio: let arch advertise guest's memory access restrictions
  vhost_vdpa: Fix duplicate included kernel.h
  vhost: reduce stack usage in log_used
  virtio-mem: Constify mem_id_table
  virtio_input: Constify id_table
  virtio-balloon: Constify id_table
  vdpa/mlx5: Fix failure to bring link up
  vdpa/mlx5: Make use of a specific 16 bit endianness API
2020-10-23 11:00:57 -07:00
Linus Torvalds
090a7d046f chrome platform changes for 5.10
cros-ec:
 * Error code cleanup across cros-ec by Guenter.
 * Remove cros_ec_cmd_xfer in favor of cros_ec_cmd_xfer_status.
 
 cros_ec_typec:
 * Landed initial USB4 support in typec connector class driver for cros_ec.
 * Role switch bugfix on disconnect, and reordering configuration steps.
 
 cros_ec_lightbar:
 * Fix buffer outsize and result for get_lightbar_version.
 
 misc:
 * Remove config MFD_CROS_EC, now that transition from MFD is complete.
 * Enable KEY_LEFTMETA in new location on arm based cros-ec-keyboard keymap.
 -----BEGIN PGP SIGNATURE-----
 
 iHUEABYKAB0WIQQCtZK6p/AktxXfkOlzbaomhzOwwgUCX5G2IAAKCRBzbaomhzOw
 wo4JAQC7BcJJwYgoVnRQvYd4xXCEsl/F9cVFJJLRYAH/PA4x6gEA+wfdIxebAXbO
 RapU2HOppxiQGFkr+0FX5xV+O7cRNAo=
 =gkul
 -----END PGP SIGNATURE-----

Merge tag 'tag-chrome-platform-for-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux

Pull chrome platform updates from Benson Leung:
 "cros-ec:
   - Error code cleanup across cros-ec by Guenter
   - Remove cros_ec_cmd_xfer in favor of cros_ec_cmd_xfer_status

  cros_ec_typec:
   - Landed initial USB4 support in typec connector class driver for
     cros_ec
   - Role switch bugfix on disconnect, and reordering configuration
     steps

  cros_ec_lightbar:
   - Fix buffer outsize and result for get_lightbar_version

  misc:
   - Remove config MFD_CROS_EC, now that transition from MFD is complete
   - Enable KEY_LEFTMETA in new location on arm based cros-ec-keyboard
     keymap"

* tag 'tag-chrome-platform-for-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux:
  ARM: dts: cros-ec-keyboard: Add alternate keymap for KEY_LEFTMETA
  platform/chrome: Use kobj_to_dev() instead of container_of()
  platform/chrome: cros_ec_proto: Drop cros_ec_cmd_xfer()
  platform/chrome: cros_ec_proto: Update cros_ec_cmd_xfer() call-sites
  platform/chrome: Kconfig: Remove the transitional MFD_CROS_EC config
  platform/chrome: cros_ec_lightbar: Reduce ligthbar get version command
  platform/chrome: cros_ec_trace: Add fields to command traces
  platform/chrome: cros_ec_typec: Re-order connector configuration steps
  platform/chrome: cros_ec_typec: Avoid setting usb role twice during disconnect
  platform/chrome: cros_ec_typec: Send enum values to usb_role_switch_set_role()
  platform/chrome: cros_ec_typec: USB4 support
  pwm: cros-ec: Simplify EC error handling
  platform/chrome: cros_ec_proto: Convert EC error codes to Linux error codes
  platform/input: cros_ec: Replace -ENOTSUPP with -ENOPROTOOPT
  pwm: cros-ec: Accept more error codes from cros_ec_cmd_xfer_status
  platform/chrome: cros_ec_sysfs: Report range of error codes from EC
  cros_ec_lightbar: Accept more error codes from cros_ec_cmd_xfer_status
  iio: cros_ec: Accept -EOPNOTSUPP as 'not supported' error code
2020-10-23 10:54:13 -07:00
Linus Torvalds
4a22709e21 arch-cleanup-2020-10-22
-----BEGIN PGP SIGNATURE-----
 
 iQJEBAABCAAuFiEEwPw5LcreJtl1+l5K99NY+ylx4KYFAl+SOXIQHGF4Ym9lQGtl
 cm5lbC5kawAKCRD301j7KXHgptrcD/93VUDmRAn73ChKNd0TtXUicJlAlNLVjvfs
 VFTXWBDnlJnGkZT7ElkDD9b8dsz8l4xGf/QZ5dzhC/th2OsfObQkSTfe0lv5cCQO
 mX7CRSrDpjaHtW+WGPDa0oQsGgIfpqUz2IOg9NKbZZ1LJ2uzYfdOcf3oyRgwZJ9B
 I3sh1vP6OzjZVVCMmtMTM+sYZEsDoNwhZwpkpiwMmj8tYtOPgKCYKpqCiXrGU0x2
 ML5FtDIwiwU+O3zYYdCBWqvCb2Db0iA9Aov2whEBz/V2jnmrN5RMA/90UOh1E2zG
 br4wM1Wt3hNrtj5qSxZGlF/HEMYJVB8Z2SgMjYu4vQz09qRVVqpGdT/dNvLAHQWg
 w4xNCj071kVZDQdfwnqeWSKYUau9Xskvi8xhTT+WX8a5CsbVrM9vGslnS5XNeZ6p
 h2D3Q+TAYTvT756icTl0qsYVP7PrPY7DdmQYu0q+Lc3jdGI+jyxO2h9OFBRLZ3p6
 zFX2N8wkvvCCzP2DwVnnhIi/GovpSh7ksHnb039F36Y/IhZPqV1bGqdNQVdanv6I
 8fcIDM6ltRQ7dO2Br5f1tKUZE9Pm6x60b/uRVjhfVh65uTEKyGRhcm5j9ztzvQfI
 cCBg4rbVRNKolxuDEkjsAFXVoiiEEsb7pLf4pMO+Dr62wxFG589tQNySySneUIVZ
 J9ILnGAAeQ==
 =aVWo
 -----END PGP SIGNATURE-----

Merge tag 'arch-cleanup-2020-10-22' of git://git.kernel.dk/linux-block

Pull arch task_work cleanups from Jens Axboe:
 "Two cleanups that don't fit other categories:

   - Finally get the task_work_add() cleanup done properly, so we don't
     have random 0/1/false/true/TWA_SIGNAL confusing use cases. Updates
     all callers, and also fixes up the documentation for
     task_work_add().

   - While working on some TIF related changes for 5.11, this
     TIF_NOTIFY_RESUME cleanup fell out of that. Remove some arch
     duplication for how that is handled"

* tag 'arch-cleanup-2020-10-22' of git://git.kernel.dk/linux-block:
  task_work: cleanup notification modes
  tracehook: clear TIF_NOTIFY_RESUME in tracehook_notify_resume()
2020-10-23 10:06:38 -07:00
Linus Torvalds
0a14d76498 Urgent perf ARC fix
-----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEOXpuCuR6hedrdLCJadfx3eKKwl4FAl+SNO0ACgkQadfx3eKK
 wl4VgA//d79Bt3a78eDpXhK12g8UImgUM99AxKKx3nd/pt9mP0pjB0DILnWGmPq4
 kaqpt4jgkOfezAdPFjNCLs8ghNswQWmeKfh57f5sZcLt4OPBlpzFhauaIauYAdCW
 /9xmN2CVSr8EOfXK+S4VxjSG8FIFdtaiw4B+zYaZ9O684Cnp6it2Izk9EMDwfHbB
 kP70plt5yIohnec0ByHpgbQvoXGUpxR3raTHFAOh3RTl35Dh1IyvFlv9/C5h7qrJ
 KIwsTO7OfnnQZ+TfqN9fNXTh4ybZ4ogfAU59TtKkzMyVDERdMIwWMR+Jb+WVo4HV
 NPobwmzrAkJFephnJjvlvZ+0UIcBQ8fZqk4H+P0z2Cv6dyAlaJEE8L4XEQolm96l
 exNT/tcmCyysLqWmpYJ6NRVJnfK6iU5UT34nLun8mucWCJYA3FdmhCciss2MgmYi
 a6ZDV4XLFihglnbRAFfqYELfhdSQi4llkFRAJ/R4yH2gzX4Bhyt4nE/JJxElyxNb
 E1e4UT6fKnlKqi5yNEt2elF+n/u+RXlH6GhWJ4QDQk73gkiJYksq0uDnso+60KKJ
 y6KoUVlHzSZM8rc4qRCPcX1OwrsYRJvGEk1vJc0RXVBL0i8/EkGK9w4r/Ty3PqOg
 r46LDlruGpL4yTFnZMKNyJqt2gk2eZgUhYdhAEfdnMYq47yqTnY=
 =OtSA
 -----END PGP SIGNATURE-----

Merge tag 'arc-5.10-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc

Pull ARC fix from Vineet Gupta:
 "I found a snafu in perf driver which made it into 5.9-rc4 and the fix
  should go in now than wait"

* tag 'arc-5.10-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
  ARC: perf: redo the pct irq missing in device-tree handling
2020-10-23 09:59:25 -07:00
Linus Torvalds
032c7ed958 More arm64 updates for 5.10
- Improve performance of Spectre-v2 mitigation on Falkor CPUs (if you're lucky
   enough to have one)
 
 - Select HAVE_MOVE_PMD. This has been shown to improve mremap() performance,
   which is used heavily by the Android runtime GC, and it seems we forgot to
   enable this upstream back in 2018.
 
 - Ensure linker flags are consistent between LLVM and BFD
 
 - Fix stale comment in Spectre mitigation rework
 
 - Fix broken copyright header
 
 - Fix KASLR randomisation of the linear map
 
 - Prevent arm64-specific prctl()s from compat tasks (return -EINVAL)
 -----BEGIN PGP SIGNATURE-----
 
 iQFEBAABCgAuFiEEPxTL6PPUbjXGY88ct6xw3ITBYzQFAl+QEPAQHHdpbGxAa2Vy
 bmVsLm9yZwAKCRC3rHDchMFjNE8jB/0YNYKO9mis/Xn5KcOCwlg4dbc2uVBknZXD
 f7otEJ6SOax2HcWz8qJlrJ+qbGFawPIqFBUAM0vU1VmoyctIoKRFTA8ACfWfWtnK
 QBfHrcxtJCh/GGq+E1IyuqWzCjppeY/7gYVdgi1xDEZRSaLz53MC1GVBwKBtu5cf
 X2Bfm8d9+PSSnmKfpO65wSCTvN3PQX1SNEHwwTWFZQx0p7GcQK1DdwoobM6dRnVy
 +e984ske+2a+nTrkhLSyQIgsfHuLB4pD6XdM/UOThnfdNxdQ0dUGn375sXP+b4dW
 7MTH9HP/dXIymTcuErMXOHJXLk/zUiUBaOxkmOxdvrhQd0uFNFIc
 =e9p9
 -----END PGP SIGNATURE-----

Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull more arm64 updates from Will Deacon:
 "A small selection of further arm64 fixes and updates. Most of these
  are fixes that came in during the merge window, with the exception of
  the HAVE_MOVE_PMD mremap() speed-up which we discussed back in 2018
  and somehow forgot to enable upstream.

   - Improve performance of Spectre-v2 mitigation on Falkor CPUs (if
     you're lucky enough to have one)

   - Select HAVE_MOVE_PMD. This has been shown to improve mremap()
     performance, which is used heavily by the Android runtime GC, and
     it seems we forgot to enable this upstream back in 2018.

   - Ensure linker flags are consistent between LLVM and BFD

   - Fix stale comment in Spectre mitigation rework

   - Fix broken copyright header

   - Fix KASLR randomisation of the linear map

   - Prevent arm64-specific prctl()s from compat tasks (return -EINVAL)"

Link: https://lore.kernel.org/kvmarm/20181108181201.88826-3-joelaf@google.com/

* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: proton-pack: Update comment to reflect new function name
  arm64: spectre-v2: Favour CPU-specific mitigation at EL2
  arm64: link with -z norelro regardless of CONFIG_RELOCATABLE
  arm64: Fix a broken copyright header in gen_vdso_offsets.sh
  arm64: mremap speedup - Enable HAVE_MOVE_PMD
  arm64: mm: use single quantity to represent the PA to VA translation
  arm64: reject prctl(PR_PAC_RESET_KEYS) on compat tasks
2020-10-23 09:46:16 -07:00
Rafael J. Wysocki
2818cc7454 Merge branches 'acpi-debug', 'acpi-reboot', 'acpi-processor', 'acpi-dptf' and 'acpi-utils'
* acpi-debug:
  ACPI: debug: don't allow debugging when ACPI is disabled

* acpi-reboot:
  ACPI: reboot: Avoid racing after writing to ACPI RESET_REG

* acpi-processor:
  ACPI: processor: remove comment regarding string _UID support

* acpi-dptf:
  ACPI: DPTF: Add ACPI_DPTF Kconfig menu
  ACPI: DPTF: Fix participant driver names

* acpi-utils:
  ACPI: utils: remove unreachable breaks
2020-10-23 18:16:56 +02:00
Rafael J. Wysocki
41c169d9ae Merge branch 'pm-avs'
* pm-avs:
  PM: AVS: Drop the avs directory and the corresponding Kconfig
  PM: AVS: qcom-cpr: Move the driver to the qcom specific drivers
  PM: AVS: smartreflex Move driver to soc specific drivers
  PM: AVS: rockchip-io: Move the driver to the rockchip specific drivers
2020-10-23 18:12:32 +02:00
Rafael J. Wysocki
71d47b53de Merge branches 'pm-core', 'pm-sleep', 'pm-tools' and 'powercap'
* pm-core:
  PM: runtime: Fix typo in pm_runtime_set_active() helper comment

* pm-sleep:
  PM: sleep: remove unreachable break

* pm-tools:
  cpupower: speed up generating git version string
  cpupowerutils: fix spelling mistake "dependant" -> "dependent"

* powercap:
  powercap: Fix typo in Kconfig "Plance" -> "Plane"
  powercap/intel_rapl: enumerate Psys RAPL domain together with package RAPL domain
  powercap/intel_rapl: Fix domain detection
2020-10-23 18:11:23 +02:00
Rafael J. Wysocki
db06391e05 Merge branches 'pm-cpufreq' and 'pm-cpuidle'
* pm-cpufreq:
  cpufreq: schedutil: restore cached freq when next_f is not changed
  acpi-cpufreq: Honor _PSD table setting on new AMD CPUs
  cpufreq: intel_pstate: Delete intel_pstate sysfs if failed to register the driver
  cpufreq: Improve code around unlisted freq check

* pm-cpuidle:
  intel_idle: Ignore _CST if control cannot be taken from the platform
  cpuidle: Remove pointless stub
  intel_idle: mention assumption that WBINVD is not needed
  MAINTAINERS: Add section for cpuidle-psci PM domain
2020-10-23 18:10:59 +02:00
Abhi Das
bedb0f056f gfs2: Recover statfs info in journal head
Apply the outstanding statfs changes in the journal head to the
master statfs file. Zero out the local statfs file for good measure.

Previously, statfs updates would be read in from the local statfs inode and
synced to the master statfs inode during recovery.

We now use the statfs updates in the journal head to update the master statfs
inode instead of reading in from the local statfs inode. To preserve backward
compatibility with kernels that can't do this, we still need to keep the
local statfs inode up to date by writing changes to it. At some point in the
future, we can do away with the local statfs inodes altogether and keep the
statfs changes solely in the journal.

Signed-off-by: Abhi Das <adas@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
2020-10-23 15:47:38 +02:00
Abhi Das
97fd734ba1 gfs2: lookup local statfs inodes prior to journal recovery
We need to lookup the master statfs inode and the local statfs
inodes earlier in the mount process (in init_journal) so journal
recovery can use them when it attempts to recover the statfs info.
We lookup all the local statfs inodes and store them in a linked
list to allow a node to recover statfs info for other nodes in the
cluster.

Signed-off-by: Abhi Das <adas@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
2020-10-23 15:47:14 +02:00
Jens Axboe
ddc62910b4 nvme fixes for 5.10
- rdma error handling fixes (Chao Leng)
  - fc error handling and reconnect fixes (James Smart)
  - fix the qid displace when tracing ioctl command (Keith Busch)
  - don't use BLK_MQ_REQ_NOWAIT for passthru (Chaitanya Kulkarni)
  - fix MTDT for passthru (Logan Gunthorpe)
  - blacklist Write Same on more devices (Kai-Heng Feng)
  - fix an uninitialized work struct (zhenwei pi)
 -----BEGIN PGP SIGNATURE-----
 
 iQI/BAABCgApFiEEgdbnc3r/njty3Iq9D55TZVIEUYMFAl+StyILHGhjaEBsc3Qu
 ZGUACgkQD55TZVIEUYPkMg//RdykKGgAPLFiFDsWpZCQEUiiZjWKndtEpX4orT25
 o7QE6TunecQFNZPIobow164ZbeeaKP5syCnPvtjgYMVvmIwZMZcHhA+pAZQAu9/j
 tsZ9wquTa1QV4qJbDmY4ptQGIqXODf8rLZybqMhw/e0l+E0iI5ngkn8TCnNQTqP5
 S0YFzdoVDefubDx9uzuLIbCuzBW+zv8bpxRaYWxKDI8AmezDn6PV8ZeFZOgxsmkI
 0nBSHfwbSPvxSWHAw/pzGoQ0g5aOe7zxHtslz/g3gOYVto/6JsGyCVAXICym5ZbD
 59GQ5PPZggfw+GVtdoEA/A21hMusf0aGnk7lTpNnLJ1IXmVNUI61/1AaD4LBAXjM
 Q1VfgP4YrXl+XpYhbGcAYB0OTNsntM8O9xsX1ZQpW2VRnKgjPiohtKq2QAEdWCKH
 mZR9f+XIe/BRnRRl0A37IyUDeo4/EFiQ66wKW+GAL1R/x/rJUFdY7sM4u1j0XGgN
 WZMHdpLyoSlXYcV280I0w8f7wASwAZ78A87w5W7pcuBKH0aCnssreRQ2vOGPHb0x
 7cqNQ+lyrp/Rhb9NHj0jJWEEJ6tHa8xH4/Tz+hsktx0vkK454YmS3Rbrll3D9wtC
 7LZZkluy9r3pg24xJNUo6V0DyVCF1Nl063TZ5YR8/N4lXRlk/6BE4k1IsK/Jcl8g
 4T4=
 =gjYy
 -----END PGP SIGNATURE-----

Merge tag 'nvme-5.10-2020-10-23' of git://git.infradead.org/nvme into block-5.10

Pull NVMe fixes from Christoph:

"nvme fixes for 5.10

 - rdma error handling fixes (Chao Leng)
 - fc error handling and reconnect fixes (James Smart)
 - fix the qid displace when tracing ioctl command (Keith Busch)
 - don't use BLK_MQ_REQ_NOWAIT for passthru (Chaitanya Kulkarni)
 - fix MTDT for passthru (Logan Gunthorpe)
 - blacklist Write Same on more devices (Kai-Heng Feng)
 - fix an uninitialized work struct (zhenwei pi)"

* tag 'nvme-5.10-2020-10-23' of git://git.infradead.org/nvme:
  nvme-fc: shorten reconnect delay if possible for FC
  nvme-fc: wait for queues to freeze before calling update_hr_hw_queues
  nvme-fc: fix error loop in create_hw_io_queues
  nvme-fc: fix io timeout to abort I/O
  nvmet: don't use BLK_MQ_REQ_NOWAIT for passthru
  nvmet: cleanup nvmet_passthru_map_sg()
  nvmet: limit passthru MTDS by BIO_MAX_PAGES
  nvmet: fix uninitialized work for zero kato
  nvme-pci: disable Write Zeroes on Sandisk Skyhawk
  nvme: use queuedata for nvme_req_qid
  nvme-rdma: fix crash due to incorrect cqe
  nvme-rdma: fix crash when connect rejected
2020-10-23 07:29:08 -06:00