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2698 Commits

Author SHA1 Message Date
Linus Torvalds
8096acd744 Networking fixes for 5.14-rc2, including fixes from bpf and netfilter. 
Current release - regressions:
 
  - sock: fix parameter order in sock_setsockopt()
 
 Current release - new code bugs:
 
  - netfilter: nft_last:
      - fix incorrect arithmetic when restoring last used
      - honor NFTA_LAST_SET on restoration
 
 Previous releases - regressions:
 
  - udp: properly flush normal packet at GRO time
 
  - sfc: ensure correct number of XDP queues; don't allow enabling the
         feature if there isn't sufficient resources to Tx from any CPU
 
  - dsa: sja1105: fix address learning getting disabled on the CPU port
 
  - mptcp: addresses a rmem accounting issue that could keep packets
         in subflow receive buffers longer than necessary, delaying
 	MPTCP-level ACKs
 
  - ip_tunnel: fix mtu calculation for ETHER tunnel devices
 
  - do not reuse skbs allocated from skbuff_fclone_cache in the napi
    skb cache, we'd try to return them to the wrong slab cache
 
  - tcp: consistently disable header prediction for mptcp
 
 Previous releases - always broken:
 
  - bpf: fix subprog poke descriptor tracking use-after-free
 
  - ipv6:
       - allocate enough headroom in ip6_finish_output2() in case
         iptables TEE is used
       - tcp: drop silly ICMPv6 packet too big messages to avoid
         expensive and pointless lookups (which may serve as a DDOS
 	vector)
       - make sure fwmark is copied in SYNACK packets
       - fix 'disable_policy' for forwarded packets (align with IPv4)
 
  - netfilter: conntrack: do not renew entry stuck in tcp SYN_SENT state
 
  - netfilter: conntrack: do not mark RST in the reply direction coming
       after SYN packet for an out-of-sync entry
 
  - mptcp: cleanly handle error conditions with MP_JOIN and syncookies
 
  - mptcp: fix double free when rejecting a join due to port mismatch
 
  - validate lwtstate->data before returning from skb_tunnel_info()
 
  - tcp: call sk_wmem_schedule before sk_mem_charge in zerocopy path
 
  - mt76: mt7921: continue to probe driver when fw already downloaded
 
  - bonding: fix multiple issues with offloading IPsec to (thru?) bond
 
  - stmmac: ptp: fix issues around Qbv support and setting time back
 
  - bcmgenet: always clear wake-up based on energy detection
 
 Misc:
 
  - sctp: move 198 addresses from unusable to private scope
 
  - ptp: support virtual clocks and timestamping
 
  - openvswitch: optimize operation for key comparison
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Merge tag 'net-5.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski.
 "Including fixes from bpf and netfilter.

  Current release - regressions:

   - sock: fix parameter order in sock_setsockopt()

  Current release - new code bugs:

   - netfilter: nft_last:
       - fix incorrect arithmetic when restoring last used
       - honor NFTA_LAST_SET on restoration

  Previous releases - regressions:

   - udp: properly flush normal packet at GRO time

   - sfc: ensure correct number of XDP queues; don't allow enabling the
     feature if there isn't sufficient resources to Tx from any CPU

   - dsa: sja1105: fix address learning getting disabled on the CPU port

   - mptcp: addresses a rmem accounting issue that could keep packets in
     subflow receive buffers longer than necessary, delaying MPTCP-level
     ACKs

   - ip_tunnel: fix mtu calculation for ETHER tunnel devices

   - do not reuse skbs allocated from skbuff_fclone_cache in the napi
     skb cache, we'd try to return them to the wrong slab cache

   - tcp: consistently disable header prediction for mptcp

  Previous releases - always broken:

   - bpf: fix subprog poke descriptor tracking use-after-free

   - ipv6:
       - allocate enough headroom in ip6_finish_output2() in case
         iptables TEE is used
       - tcp: drop silly ICMPv6 packet too big messages to avoid
         expensive and pointless lookups (which may serve as a DDOS
         vector)
       - make sure fwmark is copied in SYNACK packets
       - fix 'disable_policy' for forwarded packets (align with IPv4)

   - netfilter: conntrack:
       - do not renew entry stuck in tcp SYN_SENT state
       - do not mark RST in the reply direction coming after SYN packet
         for an out-of-sync entry

   - mptcp: cleanly handle error conditions with MP_JOIN and syncookies

   - mptcp: fix double free when rejecting a join due to port mismatch

   - validate lwtstate->data before returning from skb_tunnel_info()

   - tcp: call sk_wmem_schedule before sk_mem_charge in zerocopy path

   - mt76: mt7921: continue to probe driver when fw already downloaded

   - bonding: fix multiple issues with offloading IPsec to (thru?) bond

   - stmmac: ptp: fix issues around Qbv support and setting time back

   - bcmgenet: always clear wake-up based on energy detection

  Misc:

   - sctp: move 198 addresses from unusable to private scope

   - ptp: support virtual clocks and timestamping

   - openvswitch: optimize operation for key comparison"

* tag 'net-5.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (158 commits)
  net: dsa: properly check for the bridge_leave methods in dsa_switch_bridge_leave()
  sfc: add logs explaining XDP_TX/REDIRECT is not available
  sfc: ensure correct number of XDP queues
  sfc: fix lack of XDP TX queues - error XDP TX failed (-22)
  net: fddi: fix UAF in fza_probe
  net: dsa: sja1105: fix address learning getting disabled on the CPU port
  net: ocelot: fix switchdev objects synced for wrong netdev with LAG offload
  net: Use nlmsg_unicast() instead of netlink_unicast()
  octeontx2-pf: Fix uninitialized boolean variable pps
  ipv6: allocate enough headroom in ip6_finish_output2()
  net: hdlc: rename 'mod_init' & 'mod_exit' functions to be module-specific
  net: bridge: multicast: fix MRD advertisement router port marking race
  net: bridge: multicast: fix PIM hello router port marking race
  net: phy: marvell10g: fix differentiation of 88X3310 from 88X3340
  dsa: fix for_each_child.cocci warnings
  virtio_net: check virtqueue_add_sgs() return value
  mptcp: properly account bulk freed memory
  selftests: mptcp: fix case multiple subflows limited by server
  mptcp: avoid processing packet if a subflow reset
  mptcp: fix syncookie process if mptcp can not_accept new subflow
  ...
 2021-07-14 09:24:32 -07:00
Linus Torvalds
227c4d507c f2fs-for-5.14-rc1 
In this round, we've improved the compression support especially for Android
 such as allowing compression for mmap files, replacing the immutable bit with
 internal bit to prohibits data writes explicitly, and adding a mount option,
 "compress_cache", to improve random reads. And, we added "readonly" feature to
 compact the partition w/ compression enabled, which will be useful for Android
 RO partitions.
 
 Enhancement:
  - support compression for mmap file
  - use an f2fs flag instead of IMMUTABLE bit for compression
  - support RO feature w/ extent_cache
  - fully support swapfile with file pinning
  - improve atgc tunability
  - add nocompress extensions to unselect files for compression
 
 Bug fix:
  - fix false alaram on iget failure during GC
  - fix race condition on global pointers when there are multiple f2fs instances
  - add MODULE_SOFTDEP for initramfs
 
 As usual, we've also cleaned up some places for better code readability.
 (e.g., sysfs/feature, debugging messages, slab cache name, and docs)
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Merge tag 'f2fs-for-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs

Pull f2fs updates from Jaegeuk Kim:
 "In this round, we've improved the compression support especially for
  Android such as allowing compression for mmap files, replacing the
  immutable bit with internal bit to prohibits data writes explicitly,
  and adding a mount option, "compress_cache", to improve random reads.
  And, we added "readonly" feature to compact the partition w/
  compression enabled, which will be useful for Android RO partitions.

  Enhancements:
   - support compression for mmap file
   - use an f2fs flag instead of IMMUTABLE bit for compression
   - support RO feature w/ extent_cache
   - fully support swapfile with file pinning
   - improve atgc tunability
   - add nocompress extensions to unselect files for compression

  Bug fixes:
   - fix false alaram on iget failure during GC
   - fix race condition on global pointers when there are multiple f2fs
     instances
   - add MODULE_SOFTDEP for initramfs

  As usual, we've also cleaned up some places for better code
  readability (e.g., sysfs/feature, debugging messages, slab cache
  name, and docs)"

* tag 'f2fs-for-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (32 commits)
  f2fs: drop dirty node pages when cp is in error status
  f2fs: initialize page->private when using for our internal use
  f2fs: compress: add nocompress extensions support
  MAINTAINERS: f2fs: update my email address
  f2fs: remove false alarm on iget failure during GC
  f2fs: enable extent cache for compression files in read-only
  f2fs: fix to avoid adding tab before doc section
  f2fs: introduce f2fs_casefolded_name slab cache
  f2fs: swap: support migrating swapfile in aligned write mode
  f2fs: swap: remove dead codes
  f2fs: compress: add compress_inode to cache compressed blocks
  f2fs: clean up /sys/fs/f2fs/<disk>/features
  f2fs: add pin_file in feature list
  f2fs: Advertise encrypted casefolding in sysfs
  f2fs: Show casefolding support only when supported
  f2fs: support RO feature
  f2fs: logging neatening
  f2fs: introduce FI_COMPRESS_RELEASED instead of using IMMUTABLE bit
  f2fs: compress: remove unneeded preallocation
  f2fs: atgc: export entries for better tunability via sysfs
  ...
 2021-07-09 09:37:56 -07:00
Linus Torvalds
79160a603b USB / Thunderbolt patches for 5.14-rc1 
Here is the big set of USB and Thunderbolt patches for 5.14-rc1.
 
 Nothing major here just lots of little changes for new hardware and
 features.  Highlights are:
 	- more USB 4 support added to the thunderbolt core
 	- build warning fixes all over the place
 	- usb-serial driver updates and new device support
 	- mtu3 driver updates
 	- gadget driver updates
 	- dwc3 driver updates
 	- dwc2 driver updates
 	- isp1760 host driver updates
 	- musb driver updates
 	- lots of other tiny things.
 
 Full details are in the shortlog.
 
 All of these have been in linux-next for a while now with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB / Thunderbolt updates from Greg KH:
 "Here is the big set of USB and Thunderbolt patches for 5.14-rc1.

  Nothing major here just lots of little changes for new hardware and
  features. Highlights are:

   - more USB 4 support added to the thunderbolt core

   - build warning fixes all over the place

   - usb-serial driver updates and new device support

   - mtu3 driver updates

   - gadget driver updates

   - dwc3 driver updates

   - dwc2 driver updates

   - isp1760 host driver updates

   - musb driver updates

   - lots of other tiny things.

  Full details are in the shortlog.

  All of these have been in linux-next for a while now with no reported
  issues"

* tag 'usb-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (223 commits)
  phy: qcom-qusb2: Add configuration for SM4250 and SM6115
  dt-bindings: phy: qcom,qusb2: document sm4250/6115 compatible
  dt-bindings: usb: qcom,dwc3: Add bindings for sm6115/4250
  USB: cdc-acm: blacklist Heimann USB Appset device
  usb: xhci-mtk: allow multiple Start-Split in a microframe
  usb: ftdi-elan: remove redundant continue statement in a while-loop
  usb: class: cdc-wdm: return the correct errno code
  xhci: remove redundant continue statement
  usb: dwc3: Fix debugfs creation flow
  usb: gadget: hid: fix error return code in hid_bind()
  usb: gadget: eem: fix echo command packet response issue
  usb: gadget: f_hid: fix endianness issue with descriptors
  Revert "USB: misc: Add onboard_usb_hub driver"
  Revert "of/platform: Add stubs for of_platform_device_create/destroy()"
  Revert "usb: host: xhci-plat: Create platform device for onboard hubs in probe()"
  Revert "arm64: dts: qcom: sc7180-trogdor: Add nodes for onboard USB hub"
  xhci: solve a double free problem while doing s4
  xhci: handle failed buffer copy to URB sg list and fix a W=1 copiler warning
  xhci: Add adaptive interrupt rate for isoch TRBs with XHCI_AVOID_BEI quirk
  xhci: Remove unused defines for ERST_SIZE and ERST_ENTRIES
  ...
 2021-07-05 14:16:22 -07:00
Linus Torvalds
a16d8644ba Staging / IIO driver patches for 5.14-rc1 
Here is the big set of IIO and staging driver patches for 5.14-rc1.
 
 Loads of IIO driver updates and additions in here, the shortlog has the
 full details.
 
 For the staging side, we moved a few drivers out of staging, and deleted
 the kpc2000 drivers as the original developer asked us to because no one
 was working on them anymore.
 
 Also in here are loads of coding style cleanups due to different intern
 projects focusing on the staging tree to try to get experience doing
 kernel development.
 
 All of these have been in the linux-next tree for a while with no
 reported problems.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging / IIO driver updates from Greg KH:
 "Here is the big set of IIO and staging driver patches for 5.14-rc1.

  Loads of IIO driver updates and additions in here, the shortlog has
  the full details.

  For the staging side, we moved a few drivers out of staging, and
  deleted the kpc2000 drivers as the original developer asked us to
  because no one was working on them anymore.

  Also in here are loads of coding style cleanups due to different
  intern projects focusing on the staging tree to try to get experience
  doing kernel development.

  All of these have been in the linux-next tree for a while with no
  reported problems"

* tag 'staging-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (744 commits)
  staging: hi6421-spmi-pmic: cleanup some macros
  staging: hi6421-spmi-pmic: change identation of a table
  staging: hi6421-spmi-pmic: change a return code
  staging: hi6421-spmi-pmic: better name IRQs
  staging: hi6421-spmi-pmic: use devm_request_threaded_irq()
  staging: hisilicon,hi6421-spmi-pmic.yaml: cleanup descriptions
  spmi: hisi-spmi-controller: move driver from staging
  phy: phy-hi3670-usb3: move driver from staging into phy
  staging: rtl8188eu: remove include/rtw_debug.h header
  staging: rtl8188eu: remove GlobalDebugLevel variable
  staging: rtl8188eu: remove DRIVER_PREFIX preprocessor definition
  staging: rtl8188eu: remove RT_TRACE macro
  staging: rtl8188eu: remove all RT_TRACE calls from hal/rtl8188eu_recv.c
  staging: rtl8188eu: remove all RT_TRACE calls from hal/hal_intf.c
  staging: rtl8188eu: remove all RT_TRACE calls from hal/rtl8188eu_xmit.c
  staging: rtl8188eu: remove all RT_TRACE calls from core/rtw_xmit.c
  staging: rtl8188eu: remove all RT_TRACE calls from core/rtw_pwrctrl.c
  staging: rtl8188eu: remove all RT_TRACE calls from core/rtw_recv.c
  staging: rtl8188eu: remove all RT_TRACE calls from core/rtw_ioctl_set.c
  staging: rtl8188eu: remove all RT_TRACE calls from core/rtw_ieee80211.c
  ...
 2021-07-05 14:01:53 -07:00
Linus Torvalds
f5c13f1fde Driver core changes for 5.14-rc1 
Here is the small set of driver core and debugfs updates for 5.14-rc1.
 
 Included in here are:
 	- debugfs api cleanups (touched some drivers)
 	- devres updates
 	- tiny driver core updates and tweaks
 
 Nothing major in here at all, and all have been in linux-next for a
 while with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core changes from Greg KH:
 "Here is the small set of driver core and debugfs updates for 5.14-rc1.

  Included in here are:

   - debugfs api cleanups (touched some drivers)

   - devres updates

   - tiny driver core updates and tweaks

  Nothing major in here at all, and all have been in linux-next for a
  while with no reported issues"

* tag 'driver-core-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (27 commits)
  docs: ABI: testing: sysfs-firmware-memmap: add some memmap types.
  devres: Enable trace events
  devres: No need to call remove_nodes() when there none present
  devres: Use list_for_each_safe_from() in remove_nodes()
  devres: Make locking straight forward in release_nodes()
  kernfs: move revalidate to be near lookup
  drivers/base: Constify static attribute_group structs
  firmware_loader: remove unneeded 'comma' macro
  devcoredump: remove contact information
  driver core: Drop helper devm_platform_ioremap_resource_wc()
  component: Rename 'dev' to 'parent'
  component: Drop 'dev' argument to component_match_realloc()
  device property: Don't check for NULL twice in the loops
  driver core: auxiliary bus: Fix typo in the docs
  drivers/base/node.c: make CACHE_ATTR define static DEVICE_ATTR_RO
  debugfs: remove return value of debugfs_create_ulong()
  debugfs: remove return value of debugfs_create_bool()
  scsi: snic: debugfs: remove local storage of debugfs files
  b43: don't save dentries for debugfs
  b43legacy: don't save dentries for debugfs
  ...
 2021-07-05 13:51:41 -07:00
Linus Torvalds
eed0218e8c Char / Misc driver updates for 5.14-rc1 
Here is the big set of char / misc and other driver subsystem updates
 for 5.14-rc1.  Included in here are:
 	- habanna driver updates
 	- fsl-mc driver updates
 	- comedi driver updates
 	- fpga driver updates
 	- extcon driver updates
 	- interconnect driver updates
 	- mei driver updates
 	- nvmem driver updates
 	- phy driver updates
 	- pnp driver updates
 	- soundwire driver updates
 	- lots of other tiny driver updates for char and misc drivers
 
 This is looking more and more like the "various driver subsystems mushed
 together" tree...
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char / misc driver updates from Greg KH:
 "Here is the big set of char / misc and other driver subsystem updates
  for 5.14-rc1. Included in here are:

   - habanalabs driver updates

   - fsl-mc driver updates

   - comedi driver updates

   - fpga driver updates

   - extcon driver updates

   - interconnect driver updates

   - mei driver updates

   - nvmem driver updates

   - phy driver updates

   - pnp driver updates

   - soundwire driver updates

   - lots of other tiny driver updates for char and misc drivers

  This is looking more and more like the "various driver subsystems
  mushed together" tree...

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'char-misc-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (292 commits)
  mcb: Use DEFINE_RES_MEM() helper macro and fix the end address
  PNP: moved EXPORT_SYMBOL so that it immediately followed its function/variable
  bus: mhi: pci-generic: Add missing 'pci_disable_pcie_error_reporting()' calls
  bus: mhi: Wait for M2 state during system resume
  bus: mhi: core: Fix power down latency
  intel_th: Wait until port is in reset before programming it
  intel_th: msu: Make contiguous buffers uncached
  intel_th: Remove an unused exit point from intel_th_remove()
  stm class: Spelling fix
  nitro_enclaves: Set Bus Master for the NE PCI device
  misc: ibmasm: Modify matricies to matrices
  misc: vmw_vmci: return the correct errno code
  siox: Simplify error handling via dev_err_probe()
  fpga: machxo2-spi: Address warning about unused variable
  lkdtm/heap: Add init_on_alloc tests
  selftests/lkdtm: Enable various testable CONFIGs
  lkdtm: Add CONFIG hints in errors where possible
  lkdtm: Enable DOUBLE_FAULT on all architectures
  lkdtm/heap: Add vmalloc linear overflow test
  lkdtm/bugs: XFAIL UNALIGNED_LOAD_STORE_WRITE
  ...
 2021-07-05 13:42:16 -07:00
Linus Torvalds
da85e7ed69 MTD core changes: 
* Convert list_for_each to entry variant
 * Use MTD_DEVICE_ATTR_RO/RW() helper macros
 * Remove unnecessary OOM messages
 * Potential NULL dereference in mtd_otp_size()
 * Fix freeing of otp_info buffer
 * Create partname and partid debug files for child MTDs
 * tests:
   - Remove redundant assignment to err
   - Fix error return code in mtd_oobtest_init()
 * Add OTP NVMEM provider support
 * Allow specifying of_node
 * Convert sysfs sprintf/snprintf family to sysfs_emit
 
 Bindings changes:
 * Convert ti,am654-hbmc.txt to YAML schema
 * spi-nor: add otp property
 * Add OTP bindings
 * add YAML schema for the generic MTD bindings
 * Add brcm,trx-magic
 
 MTD device drivers changes:
 * Add support for microchip 48l640 EERAM
 * Remove superfluous "break"
 * sm_ftl:
   - Fix alignment of block comment
 * nftl:
   - Return -ENOMEM when kmalloc failed
 * nftlcore:
   - Remove set but rewrite variables
 * phram:
   - Fix error return code in phram_setup()
 * plat-ram:
   - Remove redundant dev_err call in platram_probe()
 
 MTD parsers changes:
 * Qcom:
   - Fix leaking of partition name
 * Redboot:
   - Fix style issues
   - Seek fis-index-block in the right node
 * trx:
   - Allow to use TRX parser on Mediatek SoCs
   - Allow to specify brcm, trx-magic in DT
 
 Raw NAND core:
 * Allow SDR timings to be nacked
 * Bring support for NV-DDR timings which involved a number of small
   preparation changes to bring new helpers, properly introduce NV-DDR
   structures, fill them, differenciate them and pick the best timing set.
 * Add the necessary infrastructure to parse the new gpio-cs property
   which aims at enlarging the number of available CS when a hardware
   controller is too constrained.
 * Update dead URL
 * Silence static checker warning in nand_setup_interface()
 * BBT:
   - Fix corner case in bad block table handling
 * onfi:
   - Use more recent ONFI specification wording
   - Use the BIT() macro when possible
 
 Raw NAND controller drivers:
 * Atmel:
   - Ensure the data interface is supported.
 * Arasan:
   - Finer grain NV-DDR configuration
   - Rename the data interface register
   - Use the right DMA mask
   - Leverage additional GPIO CS
   - Ensure proper configuration for the asserted target
   - Add support for the NV-DDR interface
   - Fix a macro parameter
 * brcmnand:
   - Convert bindings to json-schema
 * OMAP:
   - Various fixes and style improvements
   - Add larger page NAND chips support
 * PL35X:
   - New driver
 * QCOM:
   - Avoid writing to obsolete register
   - Delete an unneeded bool conversion
   - Allow override of partition parser
 * Marvell:
   - Minor documentation correction
   - Add missing clk_disable_unprepare() on error in marvell_nfc_resume()
 * R852:
   - Use DEVICE_ATTR_RO() helper macro
 * MTK:
   - Remove redundant dev_err call in mtk_ecc_probe()
 * HISI504:
   - Remove redundant dev_err call in probe
 
 SPI-NAND core:
 * Light reorganisation for the introduction of a core resume handler
 * Fix double counting of ECC stats
 
 SPI-NAND manufacturer drivers:
 * Macronix:
   - Add support for serial NAND flash
 
 SPI NOR core changes:
 * Ability to dump SFDP tables via sysfs
 * Support for erasing OTP regions on Winbond and similar flashes
 * Few API doc updates and fixes
 * Locking support for MX25L12805D
 
 SPI NOR controller drivers changes:
 * Use SPI_MODE_X_MASK in nxp-spifi
 * Intel Alder Lake-M SPI serial flash support
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Merge tag 'mtd/for-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux

Pull MTD updates from Richard Weinberger:
 "MTD core changes:
   - Convert list_for_each to entry variant
   - Use MTD_DEVICE_ATTR_RO/RW() helper macros
   - Remove unnecessary OOM messages
   - Potential NULL dereference in mtd_otp_size()
   - Fix freeing of otp_info buffer
   - Create partname and partid debug files for child MTDs
   - tests:
      - Remove redundant assignment to err
      - Fix error return code in mtd_oobtest_init()
   - Add OTP NVMEM provider support
   - Allow specifying of_node
   - Convert sysfs sprintf/snprintf family to sysfs_emit

  Bindings changes:
   - Convert ti,am654-hbmc.txt to YAML schema
   - spi-nor: add otp property
   - Add OTP bindings
   - add YAML schema for the generic MTD bindings
   - Add brcm,trx-magic

  MTD device drivers changes:
   - Add support for microchip 48l640 EERAM
   - Remove superfluous "break"
   - sm_ftl:
      - Fix alignment of block comment
   - nftl:
      - Return -ENOMEM when kmalloc failed
   - nftlcore:
      - Remove set but rewrite variables
   - phram:
      - Fix error return code in phram_setup()
   - plat-ram:
      - Remove redundant dev_err call in platram_probe()

  MTD parsers changes:
   - Qcom:
      - Fix leaking of partition name
   - Redboot:
      - Fix style issues
      - Seek fis-index-block in the right node
   - trx:
      - Allow to use TRX parser on Mediatek SoCs
      - Allow to specify brcm, trx-magic in DT

  Raw NAND core:
   - Allow SDR timings to be nacked
   - Bring support for NV-DDR timings which involved a number of small
     preparation changes to bring new helpers, properly introduce NV-DDR
     structures, fill them, differenciate them and pick the best timing
     set.
   - Add the necessary infrastructure to parse the new gpio-cs property
     which aims at enlarging the number of available CS when a hardware
     controller is too constrained.
   - Update dead URL
   - Silence static checker warning in nand_setup_interface()
   - BBT:
      - Fix corner case in bad block table handling
   - onfi:
      - Use more recent ONFI specification wording
      - Use the BIT() macro when possible

  Raw NAND controller drivers:
   - Atmel:
      - Ensure the data interface is supported.
   - Arasan:
      - Finer grain NV-DDR configuration
      - Rename the data interface register
      - Use the right DMA mask
      - Leverage additional GPIO CS
      - Ensure proper configuration for the asserted target
      - Add support for the NV-DDR interface
      - Fix a macro parameter
   - brcmnand:
      - Convert bindings to json-schema
   - OMAP:
      - Various fixes and style improvements
      - Add larger page NAND chips support
   - PL35X:
      - New driver
   - QCOM:
      - Avoid writing to obsolete register
      - Delete an unneeded bool conversion
      - Allow override of partition parser
   - Marvell:
      - Minor documentation correction
      - Add missing clk_disable_unprepare() on error in
        marvell_nfc_resume()
   - R852:
      - Use DEVICE_ATTR_RO() helper macro
   - MTK:
      - Remove redundant dev_err call in mtk_ecc_probe()
   - HISI504:
      - Remove redundant dev_err call in probe

  SPI-NAND core:
   - Light reorganisation for the introduction of a core resume handler
   - Fix double counting of ECC stats

  SPI-NAND manufacturer drivers:
   - Macronix:
      - Add support for serial NAND flash

  SPI NOR core changes:
   - Ability to dump SFDP tables via sysfs
   - Support for erasing OTP regions on Winbond and similar flashes
   - Few API doc updates and fixes
   - Locking support for MX25L12805D

  SPI NOR controller drivers changes:
   - Use SPI_MODE_X_MASK in nxp-spifi
   - Intel Alder Lake-M SPI serial flash support"

* tag 'mtd/for-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (125 commits)
  mtd: spi-nor: remove redundant continue statement
  mtd: rawnand: omap: Add larger page NAND chips support
  mtd: rawnand: omap: Various style fixes
  mtd: rawnand: omap: Check return values
  mtd: rawnand: omap: Rename a macro
  mtd: rawnand: omap: Aggregate the HW configuration of the ELM
  mtd: rawnand: pl353: Add support for the ARM PL353 SMC NAND controller
  dt-bindings: mtd: pl353-nand: Describe this hardware controller
  MAINTAINERS: Add PL353 NAND controller entry
  mtd: rawnand: qcom: avoid writing to obsolete register
  mtd: rawnand: marvell: Minor documentation correction
  mtd: rawnand: r852: use DEVICE_ATTR_RO() helper macro
  mtd: spinand: add SPI-NAND MTD resume handler
  mtd: spinand: Add spinand_init_flash() helper
  mtd: spinand: add spinand_read_cfg() helper
  mtd: rawnand: marvell: add missing clk_disable_unprepare() on error in marvell_nfc_resume()
  mtd: rawnand: arasan: Finer grain NV-DDR configuration
  mtd: rawnand: arasan: Rename the data interface register
  mtd: rawnand: onfi: Fix endianness when reading NV-DDR values
  mtd: rawnand: arasan: Use the right DMA mask
  ...
 2021-07-05 11:21:51 -07:00
Linus Torvalds
0c66a95c7e cxl for 5.14 
- Add support for the CXL Fixed Memory Window Structure, a recent
   extension of the ACPI CEDT (CXL Early Discovery Table)
 
 - Add infrastructure for component registers
 
 - Add HDM (Host-managed device memory) decoder definitions
 
 - Define a device model for an HDM decoder tree
 
 - Bridge CXL persistent memory capabilities to an NVDIMM bus /
   device-model
 
 - Switch to fine grained mapping of CXL MMIO registers to allow
   different drivers / system software to own individual register blocks
 
 - Enable media provisioning commands, and publish the label storage area
   size in sysfs
 
 - Miscellaneous cleanups and fixes
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Merge tag 'cxl-for-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl

Pull CXL (Compute Express Link) updates from Dan Williams:
 "This subsystem is still in the build-out phase as the bulk of the
  update is improvements to enumeration and fleshing out the device
  model. In terms of new features, more mailbox commands have been added
  to the allowed-list in support of persistent memory provisioning
  support targeting v5.15.

  The critical update from an enumeration perspective is support for the
  CXL Fixed Memory Window Structure that indicates to Linux which system
  physical address ranges decode to the CXL Host Bridges in the system.
  This allows the driver to detect which address ranges have been mapped
  by firmware and what address ranges are available for future hotplug.

  So, again, mostly skeleton this round, with more meat targeting v5.15.

  Summary:

   - Add support for the CXL Fixed Memory Window Structure, a recent
     extension of the ACPI CEDT (CXL Early Discovery Table)

   - Add infrastructure for component registers

   - Add HDM (Host-managed device memory) decoder definitions

   - Define a device model for an HDM decoder tree

   - Bridge CXL persistent memory capabilities to an NVDIMM bus /
     device-model

   - Switch to fine grained mapping of CXL MMIO registers to allow
     different drivers / system software to own individual register
     blocks

   - Enable media provisioning commands, and publish the label storage
     area size in sysfs

   - Miscellaneous cleanups and fixes"

* tag 'cxl-for-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl: (34 commits)
  cxl/pci: Rename CXL REGLOC ID
  cxl/acpi: Use the ACPI CFMWS to create static decoder objects
  cxl/acpi: Add the Host Bridge base address to CXL port objects
  cxl/pmem: Register 'pmem' / cxl_nvdimm devices
  libnvdimm: Drop unused device power management support
  libnvdimm: Export nvdimm shutdown helper, nvdimm_delete()
  cxl/pmem: Add initial infrastructure for pmem support
  cxl/core: Add cxl-bus driver infrastructure
  cxl/pci: Add media provisioning required commands
  cxl/component_regs: Fix offset
  cxl/hdm: Fix decoder count calculation
  cxl/acpi: Introduce cxl_decoder objects
  cxl/acpi: Enumerate host bridge root ports
  cxl/acpi: Add downstream port data to cxl_port instances
  cxl/Kconfig: Default drivers to CONFIG_CXL_BUS
  cxl/acpi: Introduce the root of a cxl_port topology
  cxl/pci: Fixup devm_cxl_iomap_block() to take a 'struct device *'
  cxl/pci: Add HDM decoder capabilities
  cxl/pci: Reserve individual register block regions
  cxl/pci: Map registers based on capabilities
  ...
 2021-07-04 11:55:13 -07:00
Linus Torvalds
bd31b9efbf SCSI misc on 20210702 
This series consists of the usual driver updates (ufs, ibmvfc,
 megaraid_sas, lpfc, elx, mpi3mr, qedi, iscsi, storvsc, mpt3sas) with
 elx and mpi3mr being new drivers.  The major core change is a rework
 to drop the status byte handling macros and the old bit shifted
 definitions and the rest of the updates are minor fixes.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI updates from James Bottomley:
 "This series consists of the usual driver updates (ufs, ibmvfc,
  megaraid_sas, lpfc, elx, mpi3mr, qedi, iscsi, storvsc, mpt3sas) with
  elx and mpi3mr being new drivers.

  The major core change is a rework to drop the status byte handling
  macros and the old bit shifted definitions and the rest of the updates
  are minor fixes"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (287 commits)
  scsi: aha1740: Avoid over-read of sense buffer
  scsi: arcmsr: Avoid over-read of sense buffer
  scsi: ips: Avoid over-read of sense buffer
  scsi: ufs: ufs-mediatek: Add missing of_node_put() in ufs_mtk_probe()
  scsi: elx: libefc: Fix IRQ restore in efc_domain_dispatch_frame()
  scsi: elx: libefc: Fix less than zero comparison of a unsigned int
  scsi: elx: efct: Fix pointer error checking in debugfs init
  scsi: elx: efct: Fix is_originator return code type
  scsi: elx: efct: Fix link error for _bad_cmpxchg
  scsi: elx: efct: Eliminate unnecessary boolean check in efct_hw_command_cancel()
  scsi: elx: efct: Do not use id uninitialized in efct_lio_setup_session()
  scsi: elx: efct: Fix error handling in efct_hw_init()
  scsi: elx: efct: Remove redundant initialization of variable lun
  scsi: elx: efct: Fix spelling mistake "Unexected" -> "Unexpected"
  scsi: lpfc: Fix build error in lpfc_scsi.c
  scsi: target: iscsi: Remove redundant continue statement
  scsi: qla4xxx: Remove redundant continue statement
  scsi: ppa: Switch to use module_parport_driver()
  scsi: imm: Switch to use module_parport_driver()
  scsi: mpt3sas: Fix error return value in _scsih_expander_add()
  ...
 2021-07-02 15:14:36 -07:00
Linus Torvalds
019b3fd94b powerpc updates for 5.14 
- A big series refactoring parts of our KVM code, and converting some to C.
 
  - Support for ARCH_HAS_SET_MEMORY, and ARCH_HAS_STRICT_MODULE_RWX on some CPUs.
 
  - Support for the Microwatt soft-core.
 
  - Optimisations to our interrupt return path on 64-bit.
 
  - Support for userspace access to the NX GZIP accelerator on PowerVM on Power10.
 
  - Enable KUAP and KUEP by default on 32-bit Book3S CPUs.
 
  - Other smaller features, fixes & cleanups.
 
 Thanks to: Andy Shevchenko, Aneesh Kumar K.V, Arnd Bergmann, Athira Rajeev, Baokun Li,
 Benjamin Herrenschmidt, Bharata B Rao, Christophe Leroy, Daniel Axtens, Daniel Henrique
 Barboza, Finn Thain, Geoff Levand, Haren Myneni, Jason Wang, Jiapeng Chong, Joel Stanley,
 Jordan Niethe, Kajol Jain, Nathan Chancellor, Nathan Lynch, Naveen N. Rao, Nicholas
 Piggin, Nick Desaulniers, Paul Mackerras, Russell Currey, Sathvika Vasireddy, Shaokun
 Zhang, Stephen Rothwell, Sudeep Holla, Suraj Jitindar Singh, Tom Rix, Vaibhav Jain,
 YueHaibing, Zhang Jianhua, Zhen Lei.
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Merge tag 'powerpc-5.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc updates from Michael Ellerman:

 - A big series refactoring parts of our KVM code, and converting some
   to C.

 - Support for ARCH_HAS_SET_MEMORY, and ARCH_HAS_STRICT_MODULE_RWX on
   some CPUs.

 - Support for the Microwatt soft-core.

 - Optimisations to our interrupt return path on 64-bit.

 - Support for userspace access to the NX GZIP accelerator on PowerVM on
   Power10.

 - Enable KUAP and KUEP by default on 32-bit Book3S CPUs.

 - Other smaller features, fixes & cleanups.

Thanks to: Andy Shevchenko, Aneesh Kumar K.V, Arnd Bergmann, Athira
Rajeev, Baokun Li, Benjamin Herrenschmidt, Bharata B Rao, Christophe
Leroy, Daniel Axtens, Daniel Henrique Barboza, Finn Thain, Geoff Levand,
Haren Myneni, Jason Wang, Jiapeng Chong, Joel Stanley, Jordan Niethe,
Kajol Jain, Nathan Chancellor, Nathan Lynch, Naveen N. Rao, Nicholas
Piggin, Nick Desaulniers, Paul Mackerras, Russell Currey, Sathvika
Vasireddy, Shaokun Zhang, Stephen Rothwell, Sudeep Holla, Suraj Jitindar
Singh, Tom Rix, Vaibhav Jain, YueHaibing, Zhang Jianhua, and Zhen Lei.

* tag 'powerpc-5.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (218 commits)
  powerpc: Only build restart_table.c for 64s
  powerpc/64s: move ret_from_fork etc above __end_soft_masked
  powerpc/64s/interrupt: clean up interrupt return labels
  powerpc/64/interrupt: add missing kprobe annotations on interrupt exit symbols
  powerpc/64: enable MSR[EE] in irq replay pt_regs
  powerpc/64s/interrupt: preserve regs->softe for NMI interrupts
  powerpc/64s: add a table of implicit soft-masked addresses
  powerpc/64e: remove implicit soft-masking and interrupt exit restart logic
  powerpc/64e: fix CONFIG_RELOCATABLE build warnings
  powerpc/64s: fix hash page fault interrupt handler
  powerpc/4xx: Fix setup_kuep() on SMP
  powerpc/32s: Fix setup_{kuap/kuep}() on SMP
  powerpc/interrupt: Use names in check_return_regs_valid()
  powerpc/interrupt: Also use exit_must_hard_disable() on PPC32
  powerpc/sysfs: Replace sizeof(arr)/sizeof(arr[0]) with ARRAY_SIZE
  powerpc/ptrace: Refactor regs_set_return_{msr/ip}
  powerpc/ptrace: Move set_return_regs_changed() before regs_set_return_{msr/ip}
  powerpc/stacktrace: Fix spurious "stale" traces in raise_backtrace_ipi()
  powerpc/pseries/vas: Include irqdomain.h
  powerpc: mark local variables around longjmp as volatile
  ...
 2021-07-02 12:54:34 -07:00
Linus Torvalds
e04360a2ea RDMA v5.14 merge window Pull Request 
This PR contains a replacement driver for Intel iWarp hardware. This new
 driver supports the old ethernet hardware and also newer chips that can do
 ROCE. Otherwise this contains the typical mix of patches:
 
 - Driver updates and cleanups for bnxt_re, cxgb4, mlx4, and mlx5
 
 - Many static checker driven code clean ups, including a wide refcount_t
   conversion
 
 - Several series for the hns driver, more HIP09 HW capabilities, migration
   to new HW register manipulators, and code cleanups
 
 - Minor fixes and improvements  in srp, rts, and cm
 
 - Improvements throughout for sysfs related code to use DEVICE_ATTR_*,
   make the ib_port sysfs first-class, and overall use sysfs APIs properly
 
 - Intel's new irdma driver replacing i40iw
 
 - rxe general clean ups and Memory Window support
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

Pull rdma updates from Jason Gunthorpe:
 "This contains a replacement driver for Intel iWarp hardware. This new
  driver supports the old ethernet hardware and also newer chips that
  can do ROCE.

  Other than that, this contains the typical mix of patches:

   - Driver updates and cleanups for bnxt_re, cxgb4, mlx4, and mlx5

   - Many static checker driven code clean ups, including a wide
     refcount_t conversion

   - Several series for the hns driver, more HIP09 HW capabilities,
     migration to new HW register manipulators, and code cleanups

   - Minor fixes and improvements in srp, rts, and cm

   - Improvements throughout for sysfs related code to use
     DEVICE_ATTR_*, make the ib_port sysfs first-class, and overall use
     sysfs APIs properly

   - Intel's new irdma driver replacing i40iw

   - rxe general clean ups and Memory Window support"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (211 commits)
  RDMA/core: Always release restrack object
  RDMA/mlx5: Don't access NULL-cleared mpi pointer
  RDMA/irdma: Fix potential overflow expression in irdma_prm_get_pbles
  RDMA/irdma: Check contents of user-space irdma_mem_reg_req object
  RDMA/rxe: Missing unlock on error in get_srq_wqe()
  RDMA/cma: Fix rdma_resolve_route() memory leak
  RDMA/core/sa_query: Remove unused argument
  RDMA/cma: Fix incorrect Packet Lifetime calculation
  RDMA/cma: Protect RMW with qp_mutex
  RDMA/cma: Remove unnecessary INIT->INIT transition
  RDMA/hns: Add window selection field of congestion control
  RDMA/hfi1: Remove use of kmap()
  RDMA/irdma: Remove use of kmap()
  RDMA/bnxt_re: Fix uninitialized struct bit field rsvd1
  IB/isert: Align target max I/O size to initiator size
  RDMA/hns: Fix incorrect vlan enable bit in QPC
  MAINTAINERS: Update Broadcom RDMA maintainers
  RDMA/irdma: Use the queried port attributes
  RDMA/rxe: Fix redundant skb_put_zero
  RDMA/rxe: Fix extra copy in prepare_ack_packet
  ...
 2021-07-01 14:54:03 -07:00
Yangbo Lu
73f37068d5 ptp: support ptp physical/virtual clocks conversion 
Support ptp physical/virtual clocks conversion via sysfs.
There will be a new attribute n_vclocks under ptp physical
clock sysfs.

- In default, the value is 0 meaning only ptp physical clock
  is in use.
- Setting the value can create corresponding number of ptp
  virtual clocks to use. But current physical clock is guaranteed
  to stay free running.
- Setting the value back to 0 can delete virtual clocks and back
  use physical clock again.

Another new attribute max_vclocks control the maximum number of
ptp vclocks.

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2021-07-01 13:08:18 -07:00
Linus Torvalds
dbe69e4337 Networking changes for 5.14. 
Core:
 
  - BPF:
    - add syscall program type and libbpf support for generating
      instructions and bindings for in-kernel BPF loaders (BPF loaders
      for BPF), this is a stepping stone for signed BPF programs
    - infrastructure to migrate TCP child sockets from one listener
      to another in the same reuseport group/map to improve flexibility
      of service hand-off/restart
    - add broadcast support to XDP redirect
 
  - allow bypass of the lockless qdisc to improving performance
    (for pktgen: +23% with one thread, +44% with 2 threads)
 
  - add a simpler version of "DO_ONCE()" which does not require
    jump labels, intended for slow-path usage
 
  - virtio/vsock: introduce SOCK_SEQPACKET support
 
  - add getsocketopt to retrieve netns cookie
 
  - ip: treat lowest address of a IPv4 subnet as ordinary unicast address
        allowing reclaiming of precious IPv4 addresses
 
  - ipv6: use prandom_u32() for ID generation
 
  - ip: add support for more flexible field selection for hashing
        across multi-path routes (w/ offload to mlxsw)
 
  - icmp: add support for extended RFC 8335 PROBE (ping)
 
  - seg6: add support for SRv6 End.DT46 behavior
 
  - mptcp:
     - DSS checksum support (RFC 8684) to detect middlebox meddling
     - support Connection-time 'C' flag
     - time stamping support
 
  - sctp: packetization Layer Path MTU Discovery (RFC 8899)
 
  - xfrm: speed up state addition with seq set
 
  - WiFi:
     - hidden AP discovery on 6 GHz and other HE 6 GHz improvements
     - aggregation handling improvements for some drivers
     - minstrel improvements for no-ack frames
     - deferred rate control for TXQs to improve reaction times
     - switch from round robin to virtual time-based airtime scheduler
 
  - add trace points:
     - tcp checksum errors
     - openvswitch - action execution, upcalls
     - socket errors via sk_error_report
 
 Device APIs:
 
  - devlink: add rate API for hierarchical control of max egress rate
             of virtual devices (VFs, SFs etc.)
 
  - don't require RCU read lock to be held around BPF hooks
    in NAPI context
 
  - page_pool: generic buffer recycling
 
 New hardware/drivers:
 
  - mobile:
     - iosm: PCIe Driver for Intel M.2 Modem
     - support for Qualcomm MSM8998 (ipa)
 
  - WiFi: Qualcomm QCN9074 and WCN6855 PCI devices
 
  - sparx5: Microchip SparX-5 family of Enterprise Ethernet switches
 
  - Mellanox BlueField Gigabit Ethernet (control NIC of the DPU)
 
  - NXP SJA1110 Automotive Ethernet 10-port switch
 
  - Qualcomm QCA8327 switch support (qca8k)
 
  - Mikrotik 10/25G NIC (atl1c)
 
 Driver changes:
 
  - ACPI support for some MDIO, MAC and PHY devices from Marvell and NXP
    (our first foray into MAC/PHY description via ACPI)
 
  - HW timestamping (PTP) support: bnxt_en, ice, sja1105, hns3, tja11xx
 
  - Mellanox/Nvidia NIC (mlx5)
    - NIC VF offload of L2 bridging
    - support IRQ distribution to Sub-functions
 
  - Marvell (prestera):
     - add flower and match all
     - devlink trap
     - link aggregation
 
  - Netronome (nfp): connection tracking offload
 
  - Intel 1GE (igc): add AF_XDP support
 
  - Marvell DPU (octeontx2): ingress ratelimit offload
 
  - Google vNIC (gve): new ring/descriptor format support
 
  - Qualcomm mobile (rmnet & ipa): inline checksum offload support
 
  - MediaTek WiFi (mt76)
     - mt7915 MSI support
     - mt7915 Tx status reporting
     - mt7915 thermal sensors support
     - mt7921 decapsulation offload
     - mt7921 enable runtime pm and deep sleep
 
  - Realtek WiFi (rtw88)
     - beacon filter support
     - Tx antenna path diversity support
     - firmware crash information via devcoredump
 
  - Qualcomm 60GHz WiFi (wcn36xx)
     - Wake-on-WLAN support with magic packets and GTK rekeying
 
  - Micrel PHY (ksz886x/ksz8081): add cable test support
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-next-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:
 "Core:

   - BPF:
      - add syscall program type and libbpf support for generating
        instructions and bindings for in-kernel BPF loaders (BPF loaders
        for BPF), this is a stepping stone for signed BPF programs
      - infrastructure to migrate TCP child sockets from one listener to
        another in the same reuseport group/map to improve flexibility
        of service hand-off/restart
      - add broadcast support to XDP redirect

   - allow bypass of the lockless qdisc to improving performance (for
     pktgen: +23% with one thread, +44% with 2 threads)

   - add a simpler version of "DO_ONCE()" which does not require jump
     labels, intended for slow-path usage

   - virtio/vsock: introduce SOCK_SEQPACKET support

   - add getsocketopt to retrieve netns cookie

   - ip: treat lowest address of a IPv4 subnet as ordinary unicast
     address allowing reclaiming of precious IPv4 addresses

   - ipv6: use prandom_u32() for ID generation

   - ip: add support for more flexible field selection for hashing
     across multi-path routes (w/ offload to mlxsw)

   - icmp: add support for extended RFC 8335 PROBE (ping)

   - seg6: add support for SRv6 End.DT46 behavior

   - mptcp:
      - DSS checksum support (RFC 8684) to detect middlebox meddling
      - support Connection-time 'C' flag
      - time stamping support

   - sctp: packetization Layer Path MTU Discovery (RFC 8899)

   - xfrm: speed up state addition with seq set

   - WiFi:
      - hidden AP discovery on 6 GHz and other HE 6 GHz improvements
      - aggregation handling improvements for some drivers
      - minstrel improvements for no-ack frames
      - deferred rate control for TXQs to improve reaction times
      - switch from round robin to virtual time-based airtime scheduler

   - add trace points:
      - tcp checksum errors
      - openvswitch - action execution, upcalls
      - socket errors via sk_error_report

  Device APIs:

   - devlink: add rate API for hierarchical control of max egress rate
     of virtual devices (VFs, SFs etc.)

   - don't require RCU read lock to be held around BPF hooks in NAPI
     context

   - page_pool: generic buffer recycling

  New hardware/drivers:

   - mobile:
      - iosm: PCIe Driver for Intel M.2 Modem
      - support for Qualcomm MSM8998 (ipa)

   - WiFi: Qualcomm QCN9074 and WCN6855 PCI devices

   - sparx5: Microchip SparX-5 family of Enterprise Ethernet switches

   - Mellanox BlueField Gigabit Ethernet (control NIC of the DPU)

   - NXP SJA1110 Automotive Ethernet 10-port switch

   - Qualcomm QCA8327 switch support (qca8k)

   - Mikrotik 10/25G NIC (atl1c)

  Driver changes:

   - ACPI support for some MDIO, MAC and PHY devices from Marvell and
     NXP (our first foray into MAC/PHY description via ACPI)

   - HW timestamping (PTP) support: bnxt_en, ice, sja1105, hns3, tja11xx

   - Mellanox/Nvidia NIC (mlx5)
      - NIC VF offload of L2 bridging
      - support IRQ distribution to Sub-functions

   - Marvell (prestera):
      - add flower and match all
      - devlink trap
      - link aggregation

   - Netronome (nfp): connection tracking offload

   - Intel 1GE (igc): add AF_XDP support

   - Marvell DPU (octeontx2): ingress ratelimit offload

   - Google vNIC (gve): new ring/descriptor format support

   - Qualcomm mobile (rmnet & ipa): inline checksum offload support

   - MediaTek WiFi (mt76)
      - mt7915 MSI support
      - mt7915 Tx status reporting
      - mt7915 thermal sensors support
      - mt7921 decapsulation offload
      - mt7921 enable runtime pm and deep sleep

   - Realtek WiFi (rtw88)
      - beacon filter support
      - Tx antenna path diversity support
      - firmware crash information via devcoredump

   - Qualcomm WiFi (wcn36xx)
      - Wake-on-WLAN support with magic packets and GTK rekeying

   - Micrel PHY (ksz886x/ksz8081): add cable test support"

* tag 'net-next-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2168 commits)
  tcp: change ICSK_CA_PRIV_SIZE definition
  tcp_yeah: check struct yeah size at compile time
  gve: DQO: Fix off by one in gve_rx_dqo()
  stmmac: intel: set PCI_D3hot in suspend
  stmmac: intel: Enable PHY WOL option in EHL
  net: stmmac: option to enable PHY WOL with PMT enabled
  net: say "local" instead of "static" addresses in ndo_dflt_fdb_{add,del}
  net: use netdev_info in ndo_dflt_fdb_{add,del}
  ptp: Set lookup cookie when creating a PTP PPS source.
  net: sock: add trace for socket errors
  net: sock: introduce sk_error_report
  net: dsa: replay the local bridge FDB entries pointing to the bridge dev too
  net: dsa: ensure during dsa_fdb_offload_notify that dev_hold and dev_put are on the same dev
  net: dsa: include fdb entries pointing to bridge in the host fdb list
  net: dsa: include bridge addresses which are local in the host fdb list
  net: dsa: sync static FDB entries on foreign interfaces to hardware
  net: dsa: install the host MDB and FDB entries in the master's RX filter
  net: dsa: reference count the FDB addresses at the cross-chip notifier level
  net: dsa: introduce a separate cross-chip notifier type for host FDBs
  net: dsa: reference count the MDB entries at the cross-chip notifier level
  ...
 2021-06-30 15:51:09 -07:00
Linus Torvalds
776ba3ad65 platform-drivers-x86 for v5.14-1 
Highlights:
  - New think-lmi driver adding support for changing BIOS settings from
    within Linux using the standard firmware-attributes class sysfs API
  - MS Surface aggregator-cdev now also supports forwarding events to
    user-space (for debugging / new driver development purposes only)
  - New intel_skl_int3472 driver this provides the necessary glue to
    translate ACPI table information to GPIOs, regulators, etc. for
    camera sensors on Intel devices with IPU3 attached MIPI cameras
  - A whole bunch of other fixes + device-specific quirk additions
  - New devm_work_autocancel() devm-helpers.h function
 
 Note this also contains merges of the following immutable branches/tags
 shared with other subsystems:
  - platform-drivers-x86-goodix-v5.14-1
  - intel-gpio-v5.14-1
  - linux-pm/acpi-scan
  - devm-helpers-v5.14-1
 
 The following is an automated git shortlog grouped by driver:
 
 ACPI:
  -  scan: initialize local variable to avoid garbage being returned
  -  scan: Add function to fetch dependent of ACPI device
  -  scan: Extend acpi_walk_dep_device_list()
  -  scan: Rearrange dep_unmet initialization
 
 Add intel_skl_int3472 driver:
  - Add intel_skl_int3472 driver
 
 ISST:
  -  Use numa node id for cpu pci dev mapping
  -  Optimize CPU to PCI device mapping
 
 Input:
  -  goodix - platform/x86: touchscreen_dmi - Move upside down quirks to touchscreen_dmi.c
 
 MAINTAINERS:
  -  Update IRC link for Surface System Aggregator subsystem
  -  Update info for telemetry
 
 Merge remote-tracking branch 'linux-pm/acpi-scan' into review-hans:
  - Merge remote-tracking branch 'linux-pm/acpi-scan' into review-hans
 
 Merge tag 'devm-helpers-v5.14-1' into review-hans:
  - Merge tag 'devm-helpers-v5.14-1' into review-hans
 
 Merge tag 'intel-gpio-v5.14-1' into review-hans:
  - Merge tag 'intel-gpio-v5.14-1' into review-hans
 
 Merge tag 'platform-drivers-x86-goodix-v5.14-1' into review-hans:
  - Merge tag 'platform-drivers-x86-goodix-v5.14-1' into review-hans
 
 Remove "default n" entries:
  - Remove "default n" entries
 
 Rename hp-wireless to wireless-hotkey:
  - Rename hp-wireless to wireless-hotkey
 
 asus-nb-wmi:
  -  Revert "add support for ASUS ROG Zephyrus G14 and G15"
  -  Revert "Drop duplicate DMI quirk structures"
 
 dcdbas:
  -  drop unneeded assignment in host_control_smi()
 
 dell-privacy:
  -  Add support for Dell hardware privacy
 
 dell-wmi:
  -  Rename dell-wmi.c to dell-wmi-base.c
 
 dell-wmi-sysman:
  -  Change user experience when Admin/System Password is modified
  -  fw_attr_inuse can be static
  -  Use firmware_attributes_class helper
  -  Make populate_foo_data functions more robust
 
 dell-wmi-sysman/think-lmi:
  -  Make fw_attr_class global static
 
 devm-helpers:
  -  Add resource managed version of work init
 
 docs:
  -  driver-api: Update Surface Aggregator user-space interface documentation
 
 extcon:
  -  extcon-max8997: Simplify driver using devm
  -  extcon-max8997: Fix IRQ freeing at error path
  -  extcon-max77693.c: Fix potential work-queue cancellation race
  -  extcon-max14577: Fix potential work-queue cancellation race
 
 firmware_attributes_class:
  -  Create helper file for handling firmware-attributes class registration events
 
 gpio:
  -  wcove: Split error handling for CTRL and IRQ registers
  -  wcove: Unify style of to_reg() with to_ireg()
  -  wcove: Use IRQ hardware number getter instead of direct access
  -  crystalcove: remove platform_set_drvdata() + cleanup probe
 
 gpiolib:
  -  acpi: Add acpi_gpio_get_io_resource()
  -  acpi: Introduce acpi_get_and_request_gpiod() helper
 
 hdaps:
  -  Constify static attribute_group struct
 
 ideapad-laptop:
  -  Ignore VPC event bit 10
 
 intel_cht_int33fe:
  -  Move to its own subfolder
  -  Correct "displayport" fwnode reference
 
 intel_ips:
  -  fix set but unused warning in read_mgtv
 
 intel_pmt_crashlog:
  -  Constify static attribute_group struct
 
 intel_skl_int3472:
  -  Uninitialized variable in skl_int3472_handle_gpio_resources()
  -  Move to intel/ subfolder
  -  Provide skl_int3472_unregister_clock()
  -  Provide skl_int3472_unregister_regulator()
  -  Use ACPI GPIO resource directly
  -  Fix dependencies (drop CLKDEV_LOOKUP)
  -  Free ACPI device resources after use
 
 mfd:
  -  tps68470: Remove tps68470 MFD driver
 
 platform/mellanox:
  -  mlxreg-hotplug: Revert "move to use request_irq by IRQF_NO_AUTOEN flag"
 
 platform/surface:
  -  aggregator: Use list_move_tail instead of list_del/list_add_tail in ssh_packet_layer.c
  -  aggregator: Use list_move_tail instead of list_del/list_add_tail in ssh_request_layer.c
  -  aggregator: Drop unnecessary variable initialization
  -  aggregator: Do not return uninitialized value
  -  aggregator_cdev: Add lockdep support
  -  aggregator_cdev: Allow enabling of events from user-space
  -  aggregator_cdev: Add support for forwarding events to user-space
  -  aggregator: Update copyright
  -  aggregator: Allow enabling of events without notifiers
  -  aggregator: Allow registering notifiers without enabling events
  -  dtx: Add missing mutex_destroy() call in failure path
  -  aggregator: Fix event disable function
  -  aggregator_registry: Consolidate node groups for 5th- and 6th-gen devices
  -  aggregator_registry: Add support for 13" Intel Surface Laptop 4
  -  aggregator_registry: Update comments for 15" AMD Surface Laptop 4
 
 samsung-laptop:
  -  set debugfs blobs to read only
  -  use octal numbers for rwx file permissions
 
 tc1100-wmi:
  -  Constify static attribute_group struct
 
 think-lmi:
  -  Move kfree(setting->possible_values) to tlmi_attr_setting_release()
  -  Split current_value to reflect only the value
  -  Fix issues with duplicate attributes
  -  Return EINVAL when kbdlang gets set to a 0 length string
  -  Add missing MODULE_DEVICE_TABLE
  -  Avoid potential read before start of the buffer
  -  Fix check for admin password being set
  -  Add WMI interface support on Lenovo platforms
 
 thinkpad-lmi:
  -  Remove unused display_name member from struct tlmi_pwd_setting
 
 thinkpad_acpi:
  -  Add X1 Carbon Gen 9 second fan support
  -  Fix inconsistent indenting
 
 tools/power/x86/intel-speed-select:
  -  v1.10 release
  -  Fix uncore memory frequency display
 
 toshiba_acpi:
  -  Fix missing error code in toshiba_acpi_setup_keyboard()
 
 toshiba_haps:
  -  Fix missing newline in pr_debug call in toshiba_haps_notify
 
 touchscreen_dmi:
  -  Fix Chuwi Hi10 Pro comment
  -  Add info for the Goodix GT912 panel of TM800A550L tablets
  -  Add an extra entry for the upside down Goodix touchscreen on Teclast X89 tablets
 
 x86/platform/uv:
  -  Constify static attribute_group struct
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Merge tag 'platform-drivers-x86-v5.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86

Pull x86 platform driver updates from Hans de Goede:
 "Highlights:

   - New think-lmi driver adding support for changing Lenovo Thinkpad
     BIOS settings from within Linux using the standard firmware-
     attributes class sysfs API

   - MS Surface aggregator-cdev now also supports forwarding events to
     user-space (for debugging / new driver development purposes only)

   - New intel_skl_int3472 driver this provides the necessary glue to
     translate ACPI table information to GPIOs, regulators, etc. for
     camera sensors on Intel devices with IPU3 attached MIPI cameras

   - A whole bunch of other fixes + device-specific quirk additions

   - New devm_work_autocancel() devm-helpers.h function"

* tag 'platform-drivers-x86-v5.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (83 commits)
  platform/x86: dell-wmi-sysman: Change user experience when Admin/System Password is modified
  platform/x86: intel_skl_int3472: Uninitialized variable in skl_int3472_handle_gpio_resources()
  platform/x86: think-lmi: Move kfree(setting->possible_values) to tlmi_attr_setting_release()
  platform/x86: think-lmi: Split current_value to reflect only the value
  platform/x86: think-lmi: Fix issues with duplicate attributes
  platform/x86: think-lmi: Return EINVAL when kbdlang gets set to a 0 length string
  platform/x86: intel_cht_int33fe: Move to its own subfolder
  platform/x86: intel_skl_int3472: Move to intel/ subfolder
  platform/x86: intel_skl_int3472: Provide skl_int3472_unregister_clock()
  platform/x86: intel_skl_int3472: Provide skl_int3472_unregister_regulator()
  platform/x86: intel_skl_int3472: Use ACPI GPIO resource directly
  platform/x86: intel_skl_int3472: Fix dependencies (drop CLKDEV_LOOKUP)
  platform/x86: intel_skl_int3472: Free ACPI device resources after use
  platform/x86: Remove "default n" entries
  platform/x86: ISST: Use numa node id for cpu pci dev mapping
  platform/x86: ISST: Optimize CPU to PCI device mapping
  tools/power/x86/intel-speed-select: v1.10 release
  tools/power/x86/intel-speed-select: Fix uncore memory frequency display
  extcon: extcon-max8997: Simplify driver using devm
  extcon: extcon-max8997: Fix IRQ freeing at error path
  ...
 2021-06-30 11:15:39 -07:00
Linus Torvalds
233a806b00 This was a reasonably active cycle for documentation; this pull includes: 
- Some kernel-doc cleanups.  That script is still regex onslaught from
    hell, but it has gotten a little better.
 
  - Improvements to the checkpatch docs, which are also used by the tool
    itself.
 
  - A major update to the pathname lookup documentation.
 
  - Elimination of :doc: markup, since our automarkup magic can create
    references from filenames without all the extra noise.
 
  - The flurry of Chinese translation activity continues.
 
 Plus, of course, the usual collection of updates, typo fixes, and warning
 fixes.
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Merge tag 'docs-5.14' of git://git.lwn.net/linux

Pull documentation updates from Jonathan Corbet:
 "This was a reasonably active cycle for documentation; this includes:

   - Some kernel-doc cleanups. That script is still regex onslaught from
     hell, but it has gotten a little better.

   - Improvements to the checkpatch docs, which are also used by the
     tool itself.

   - A major update to the pathname lookup documentation.

   - Elimination of :doc: markup, since our automarkup magic can create
     references from filenames without all the extra noise.

   - The flurry of Chinese translation activity continues.

  Plus, of course, the usual collection of updates, typo fixes, and
  warning fixes"

* tag 'docs-5.14' of git://git.lwn.net/linux: (115 commits)
  docs: path-lookup: use bare function() rather than literals
  docs: path-lookup: update symlink description
  docs: path-lookup: update get_link() ->follow_link description
  docs: path-lookup: update WALK_GET, WALK_PUT desc
  docs: path-lookup: no get_link()
  docs: path-lookup: update i_op->put_link and cookie description
  docs: path-lookup: i_op->follow_link replaced with i_op->get_link
  docs: path-lookup: Add macro name to symlink limit description
  docs: path-lookup: remove filename_mountpoint
  docs: path-lookup: update do_last() part
  docs: path-lookup: update path_mountpoint() part
  docs: path-lookup: update path_to_nameidata() part
  docs: path-lookup: update follow_managed() part
  docs: Makefile: Use CONFIG_SHELL not SHELL
  docs: Take a little noise out of the build process
  docs: x86: avoid using ReST :doc:`foo` markup
  docs: virt: kvm: s390-pv-boot.rst: avoid using ReST :doc:`foo` markup
  docs: userspace-api: landlock.rst: avoid using ReST :doc:`foo` markup
  docs: trace: ftrace.rst: avoid using ReST :doc:`foo` markup
  docs: trace: coresight: coresight.rst: avoid using ReST :doc:`foo` markup
  ...
 2021-06-28 16:53:05 -07:00
Vaibhav Jain
ed78f56e12 powerpc/papr_scm: Make 'perf_stats' invisible if perf-stats unavailable 
In case performance stats for an nvdimm are not available, reading the
'perf_stats' sysfs file returns an -ENOENT error. A better approach is
to make the 'perf_stats' file entirely invisible to indicate that
performance stats for an nvdimm are unavailable.

So this patch updates 'papr_nd_attribute_group' to add a 'is_visible'
callback implemented as newly introduced 'papr_nd_attribute_visible()'
that returns an appropriate mode in case performance stats aren't
supported in a given nvdimm.

Also the initialization of 'papr_scm_priv.stat_buffer_len' is moved
from papr_scm_nvdimm_init() to papr_scm_probe() so that it value is
available when 'papr_nd_attribute_visible()' is called during nvdimm
initialization.

Even though 'perf_stats' attribute is available since v5.9, there are
no known user-space tools/scripts that are dependent on presence of its
sysfs file. Hence I dont expect any user-space breakage with this
patch.

Fixes: 2d02bf835e ("powerpc/papr_scm: Fetch nvdimm performance stats from PHYP")
Signed-off-by: Vaibhav Jain <vaibhav@linux.ibm.com>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210513092349.285021-1-vaibhav@linux.ibm.com
 2021-06-25 14:47:18 +10:00
Jianpeng Ma
3b1f941536 docs: ABI: testing: sysfs-firmware-memmap: add some memmap types. 
Compare with arch/x86/kernel/e820.c, types of memmap omitted some. So add.

Signed-off-by: Jianpeng Ma <jianpeng.ma@intel.com>
Link: https://lore.kernel.org/r/20210623023126.104380-1-jianpeng.ma@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2021-06-24 16:24:51 +02:00
Jaegeuk Kim
4c89b53d05 f2fs: clean up /sys/fs/f2fs/<disk>/features 
Let's create /sys/fs/f2fs/<disk>/feature_list/ to meet sysfs rule.

Note that there are three feature list entries:
1) /sys/fs/f2fs/features
  : shows runtime features supported by in-kernel f2fs along with Kconfig.
    - ref. F2FS_FEATURE_RO_ATTR()

2) /sys/fs/f2fs/$s_id/features <deprecated>
  : shows on-disk features enabled by mkfs.f2fs, used for old kernels. This
    won't add new feature anymore, and thus, users should check entries in 3)
    instead of this 2).

3) /sys/fs/f2fs/$s_id/feature_list
  : shows on-disk features enabled by mkfs.f2fs per instance, which follows
    sysfs entry rule where each entry should expose single value.
    This list covers old feature list provided by 2) and beyond. Therefore,
    please add new on-disk feature in this list only.
    - ref. F2FS_SB_FEATURE_RO_ATTR()

Reviewed-by: Chao Yu <yuchao0@huawei.com>
Reviewed-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
 2021-06-23 01:09:35 -07:00
Jason Gunthorpe
fdcebbc2ac Linux 5.13-rc7 
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Merge tag 'v5.13-rc7' into rdma.git for-next

Linux 5.13-rc7

Needed for dependencies in following patches. Merge conflict in rxe_cmop.c
resolved by compining both patches.

Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
 2021-06-22 14:43:51 -03:00
Greg Kroah-Hartman
00a738b86e thunderbolt: Changes for v5.14 merge window 
This includes following Thunderbolt/USB4 changes for the v5.14 merge
 window:
 
   * Add self-authenticate quirk for a new Dell dock
   * NVM improvements
   * Align wake configuration with the USB4 connection manager guide
   * USB4 buffer allocation support
   * Retimer NVM firmware upgrade support when there is no device
     attached
   * Support for Intel Alder Lake integrated Thunderbolt/USB4 controller
   * A couple of miscellaneous cleanups.
 
 All these have been in linux-next with no reported issues.
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Merge tag 'thunderbolt-for-v5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/westeri/thunderbolt into usb-next

Mika writes:

thunderbolt: Changes for v5.14 merge window

This includes following Thunderbolt/USB4 changes for the v5.14 merge
window:

  * Add self-authenticate quirk for a new Dell dock
  * NVM improvements
  * Align wake configuration with the USB4 connection manager guide
  * USB4 buffer allocation support
  * Retimer NVM firmware upgrade support when there is no device
    attached
  * Support for Intel Alder Lake integrated Thunderbolt/USB4 controller
  * A couple of miscellaneous cleanups.

All these have been in linux-next with no reported issues.

* tag 'thunderbolt-for-v5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/westeri/thunderbolt: (29 commits)
  thunderbolt: Fix DROM handling for USB4 DROM
  thunderbolt: Add support for Intel Alder Lake
  thunderbolt: No need to include <linux/acpi.h> in usb4_port.c
  thunderbolt: Poll 10ms for REG_FW_STS_NVM_AUTH_DONE to be set
  thunderbolt: Add device links only when software connection manager is used
  thunderbolt: Bond lanes only when dual_link_port != NULL in alloc_dev_default()
  thunderbolt: Check for NVM authentication status after the operation started
  thunderbolt: Add WRITE_ONLY and AUTHENTICATE_ONLY NVM operations for retimers
  thunderbolt: Allow router NVM authenticate separately
  thunderbolt: Move nvm_write_ops to tb.h
  thunderbolt: Add support for retimer NVM upgrade when there is no link
  thunderbolt: Add additional USB4 port operations for retimer access
  thunderbolt: Add support for ACPI _DSM to power on/off retimers
  thunderbolt: Add USB4 port devices
  thunderbolt: Log the link as TBT instead of TBT3
  thunderbolt: Add KUnit tests for credit allocation
  thunderbolt: Add quirk for Intel Goshen Ridge DP credits
  thunderbolt: Allocate credits according to router preferences
  thunderbolt: Update port credits after bonding is enabled/disabled
  thunderbolt: Read router preferred credit allocation information
  ...
 2021-06-21 12:22:27 +02:00
Yuri Nudelman
4d041216c8 debugfs: add skip_reset_on_timeout option 
To be able to debug long-running CS better, without changing the
userspace code, we are adding a new option through debugfs interface
to skip the reset of the device in case of CS timeout.

Signed-off-by: Yuri Nudelman <ynudelman@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
 2021-06-18 15:23:43 +03:00
Greg Kroah-Hartman
04d72afa34 Revert "USB: misc: Add onboard_usb_hub driver" 
This reverts commit b4e326165e as the
patch series is causing build issues in linux-next at the moment.

Cc: Matthias Kaehlcke <mka@chromium.org>
Link: https://lore.kernel.org/r/YMuRcrE8xlWnFSWW@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2021-06-18 08:39:24 +02:00
Mark Pearson
a40cd7ef22 platform/x86: think-lmi: Add WMI interface support on Lenovo platforms 
For Lenovo platforms that support a WMI interface to the BIOS add
support, using the firmware-attributes class, to allow users to access
and modify various BIOS related settings.

Signed-off-by: Mark Pearson <markpearson@lenovo.com>
Link: https://lore.kernel.org/r/20210530223111.25929-3-markpearson@lenovo.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
 2021-06-16 17:47:52 +02:00
Perry Yuan
8af9fa37b8 platform/x86: dell-privacy: Add support for Dell hardware privacy 
add support for Dell privacy driver for the Dell units equipped
hardware privacy design, which protect users privacy of audio and
camera from hardware level. Once the audio or camera privacy mode
activated, any applications will not get any audio or video stream
when user pressed ctrl+F4 hotkey, audio privacy mode will be
enabled, micmute led will be also changed accordingly
The micmute led is fully controlled by hardware & EC(embedded controller)
and camera mute hotkey is Ctrl+F9. Currently design only emits
SW_CAMERA_LENS_COVER event while the camera lens shutter will be
changed by EC & HW(hardware) control

*The flow is like this:
1) User presses key. HW does stuff with this key (timeout timer is started)
2) WMI event is emitted from BIOS to kernel
3) WMI event is received by dell-privacy
4) KEY_MICMUTE emitted from dell-privacy
5) Userland picks up key and modifies kcontrol for SW mute
6) Codec kernel driver catches and calls ledtrig_audio_set
7) dell-privacy notifies EC, the timeout is cancelled and the HW mute
   is activated. If the EC is not notified then the HW mic mute will
   activate when the timeout triggers, just a bit later than with the
   active ack.

Signed-off-by: Perry Yuan <perry_yuan@dell.com>
Link: https://lore.kernel.org/r/20210506115605.1504-1-Perry_Yuan@Dell.com
[hdegoede@redhat.com: Rework Kconfig/Makefile bits + other small fixups]
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
 2021-06-16 17:47:51 +02:00
Michael Walle
36ac022862 mtd: spi-nor: add initial sysfs support 
Add support to show the manufacturer, the partname and JEDEC identifier
as well as to dump the SFDP table. Not all flashes list their SFDP table
contents in their datasheet. So having that is useful. It might also be
helpful in bug reports from users.

Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Acked-by: Pratyush Yadav <p.yadav@ti.com>
 2021-06-15 23:18:32 +05:30
Matthias Kaehlcke
b4e326165e USB: misc: Add onboard_usb_hub driver 
The main issue this driver addresses is that a USB hub needs to be
powered before it can be discovered. For discrete onboard hubs (an
example for such a hub is the Realtek RTS5411) this is often solved
by supplying the hub with an 'always-on' regulator, which is kind
of a hack. Some onboard hubs may require further initialization
steps, like changing the state of a GPIO or enabling a clock, which
requires even more hacks. This driver creates a platform device
representing the hub which performs the necessary initialization.
Currently it only supports switching on a single regulator, support
for multiple regulators or other actions can be added as needed.
Different initialization sequences can be supported based on the
compatible string.

Besides performing the initialization the driver can be configured
to power the hub off during system suspend. This can help to extend
battery life on battery powered devices which have no requirements
to keep the hub powered during suspend. The driver can also be
configured to leave the hub powered when a wakeup capable USB device
is connected when suspending, and power it off otherwise.

Technically the driver consists of two drivers, the platform driver
described above and a very thin USB driver that subclasses the
generic driver. The purpose of this driver is to provide the platform
driver with the USB devices corresponding to the hub(s) (a hub
controller may provide multiple 'logical' hubs, e.g. one to support
USB 2.0 and another for USB 3.x).

Note: the current series only supports hubs connected directly to
a root hub (through xhci-plat), support for other configurations
could be added if needed.

Co-developed-by: Ravi Chandra Sadineni <ravisadineni@chromium.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Ravi Chandra Sadineni <ravisadineni@chromium.org>
Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Link: https://lore.kernel.org/r/20210609150159.v12.2.I7c9a1f1d6ced41dd8310e8a03da666a32364e790@changeid
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2021-06-15 15:48:35 +02:00
Tian Tao
05a463ec1b docs: cputopology: move the sysfs ABI description to right place 
Documentation/admin-guide/cputopology.rst is the wrong place to describe
sysfs ABI. So move the cputopology ABI things to
Documentation/ABI/stable/sysfs-devices-system-cpu and add a reference to
ABI doc in Documentation/admin-guide/cputopology.rst.

Link: https://lkml.kernel.org/r/20210319041618.14316-1-song.bao.hua@hisilicon.com
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Tian Tao <tiantao6@hisilicon.com>
Signed-off-by: Barry Song <song.bao.hua@hisilicon.com>
Link: https://lore.kernel.org/r/20210611052249.25776-1-song.bao.hua@hisilicon.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
 2021-06-14 16:04:31 -06:00
Alex Elder
2e3cf97f47 net: ipa: introduce sysfs code 
Add IPA device attributes to expose information known by the IPA
driver about the hardware and its configuration.

All pointers used to display these attribute values (i.e., IPA
pointer and endpoint pointers) will have been initialized by the
time IPA probe has completed, so they may be safely dereferenced.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2021-06-11 14:13:18 -07:00
Jiri Prchal
fd307a4ad3 nvmem: prepare basics for FRAM support 
Added enum and string for FRAM (ferroelectric RAM) to expose it as file
named "fram".
Added documentation of sysfs file.

Signed-off-by: Jiri Prchal <jiri.prchal@aksignal.cz>
Link: https://lore.kernel.org/r/20210611094601.95131-2-jiri.prchal@aksignal.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2021-06-11 12:23:10 +02:00
Dan Williams
40ba17afdf cxl/acpi: Introduce cxl_decoder objects 
A cxl_decoder is a child of a cxl_port. It represents a hardware decoder
configuration of an upstream port to one or more of its downstream
ports. The decoder is either represented in CXL standard HDM decoder
registers (see CXL 2.0 section 8.2.5.12 CXL HDM Decoder Capability
Structure), or it is a static decode configuration communicated by
platform firmware (see the CXL Early Discovery Table: Fixed Memory
Window Structure).

The firmware described and hardware described decoders differ slightly
leading to 2 different sub-types of decoders, cxl_decoder_root and
cxl_decoder_switch. At the root level the decode capabilities restrict
what can be mapped beneath them. Mid-level switch decoders are
configured for either acclerator (type-2) or memory-expander (type-3)
operation, but they are otherwise agnostic to the type of memory
(volatile vs persistent) being mapped.

Here is an example topology from a single-ported host-bridge environment
without CFMWS decodes enumerated.

    /sys/bus/cxl/devices/root0
    ├── devtype
    ├── dport0 -> ../../../LNXSYSTM:00/LNXSYBUS:00/ACPI0016:00
    ├── port1
    │   ├── decoder1.0
    │   │   ├── devtype
    │   │   ├── locked
    │   │   ├── size
    │   │   ├── start
    │   │   ├── subsystem -> ../../../../../../bus/cxl
    │   │   ├── target_list
    │   │   ├── target_type
    │   │   └── uevent
    │   ├── devtype
    │   ├── dport0 -> ../../../../pci0000:34/0000:34:00.0
    │   ├── subsystem -> ../../../../../bus/cxl
    │   ├── uevent
    │   └── uport -> ../../../../LNXSYSTM:00/LNXSYBUS:00/ACPI0016:00
    ├── subsystem -> ../../../../bus/cxl
    ├── uevent
    └── uport -> ../../ACPI0017:00

Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/162325695128.2293823.17519927266014762694.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
 2021-06-09 18:02:39 -07:00
Dan Williams
7d4b5ca2e2 cxl/acpi: Add downstream port data to cxl_port instances 
In preparation for infrastructure that enumerates and configures the CXL
decode mechanism of an upstream port to its downstream ports, add a
representation of a CXL downstream port.

On ACPI systems the top-most logical downstream ports in the hierarchy
are the host bridges (ACPI0016 devices) that decode the memory windows
described by the CXL Early Discovery Table Fixed Memory Window
Structures (CEDT.CFMWS).

Reviewed-by: Alison Schofield <alison.schofield@intel.com>
Link: https://lore.kernel.org/r/162325450624.2293126.3533006409920271718.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
 2021-06-09 18:02:39 -07:00
Dan Williams
4812be97c0 cxl/acpi: Introduce the root of a cxl_port topology 
While CXL builds upon the PCI software model for enumeration and
endpoint control, a static platform component is required to bootstrap
the CXL memory layout. Similar to how ACPI identifies root-level PCI
memory resources, ACPI data enumerates the address space and interleave
configuration for CXL Memory.

In addition to identifying host bridges, ACPI is responsible for
enumerating the CXL memory space that can be addressed by downstream
decoders. This is similar to the requirement for ACPI to publish
resources via the _CRS method for PCI host bridges. Specifically, ACPI
publishes a table, CXL Early Discovery Table (CEDT), which includes a
list of CXL Memory resources, CXL Fixed Memory Window Structures
(CFMWS).

For now, introduce the core infrastructure for a cxl_port hierarchy
starting with a root level anchor represented by the ACPI0017 device.

Follow on changes model support for the configurable decode capabilities
of cxl_port instances, i.e. CXL switch support.

Co-developed-by: Alison Schofield <alison.schofield@intel.com>
Signed-off-by: Alison Schofield <alison.schofield@intel.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/162325449515.2293126.15303270193010154608.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
 2021-06-09 18:02:38 -07:00
William Breathitt Gray
769841c966 docs: counter: Consolidate Counter sysfs attributes documentation 
Duplicate ABIs are not valid, so let's consolidate these sysfs
attributes into the main sysfs-bus-counter documentation file.

Cc: Patrick Havelange <patrick.havelange@essensium.com>
Reviewed-by: David Lechner <david@lechnology.com>
Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Link: https://lore.kernel.org/r/c651ec1c541754ad108160839e2b8425ad089819.1623201081.git.vilhelm.gray@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2021-06-09 15:55:15 +01:00
Ruslan Bilovol
e89bb42883 usb: gadget: u_audio: add real feedback implementation 
This adds interface between userspace and feedback endpoint to report real
feedback frequency to the Host.

Current implementation adds new userspace interface ALSA mixer control
"Capture Pitch 1000000" (similar to aloop driver's "PCM Rate Shift 100000"
mixer control)

Value in PPM is chosen to have correction value agnostic of the actual HW
rate, which the application is not necessarily dealing with, while still
retaining a good enough precision to allow smooth clock correction on the
playback side, if necessary.

Similar to sound/usb/endpoint.c, a slow down is allowed up to 25%. This
has no impact on the required bandwidth. Speedup correction has an impact
on the bandwidth reserved for the isochronous endpoint. The default
allowed speedup is 500ppm. This seems to be more than enough but, if
necessary, this is configurable through a module parameter. The reserved
bandwidth is rounded up to the next packet size.

Usage of this new control is easy to implement in existing userspace tools
like alsaloop from alsa-utils.

Signed-off-by: Ruslan Bilovol <ruslan.bilovol@gmail.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Link: https://lore.kernel.org/r/20210603220104.1216001-4-jbrunet@baylibre.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2021-06-09 11:26:49 +02:00
Ruslan Bilovol
40c73b3054 usb: gadget: f_uac2: add adaptive sync support for capture 
Current f_uac2 USB OUT (aka 'capture') synchronization
implements 'ASYNC' scenario which means USB Gadget has
it's own freerunning clock and can update Host about
real clock frequency through feedback endpoint so Host
can align number of samples sent to the USB gadget to
prevent overruns/underruns

In case if Gadget can has no it's internal clock and
can consume audio samples at any rate (for example,
on the Gadget side someone records audio directly to
a file, or audio samples are played through an
external DAC as soon as they arrive), UAC2 spec
suggests 'ADAPTIVE' synchronization type.

Change UAC2 driver to make it configurable through
additional 'c_sync' configfs file.

Default remains 'asynchronous' with possibility to
switch it to 'adaptive'

Signed-off-by: Ruslan Bilovol <ruslan.bilovol@gmail.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Link: https://lore.kernel.org/r/20210603220104.1216001-3-jbrunet@baylibre.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2021-06-09 11:26:49 +02:00
Jarkko Nikula
b711f687a1 counter: Add support for Intel Quadrature Encoder Peripheral 
Add support for Intel Quadrature Encoder Peripheral found on Intel
Elkhart Lake platform.

Initial implementation was done by Felipe Balbi while he was working at
Intel with later changes from Raymond Tan and me.

Co-developed-by: Felipe Balbi (Intel) <balbi@kernel.org>
Signed-off-by: Felipe Balbi (Intel) <balbi@kernel.org>
Co-developed-by: Raymond Tan <raymond.tan@intel.com>
Signed-off-by: Raymond Tan <raymond.tan@intel.com>
Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Acked-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Link: https://lore.kernel.org/r/20210602113259.158674-1-jarkko.nikula@linux.intel.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2021-06-03 18:24:14 +01:00
Shiraz Saleem
fa0cf568fd RDMA/irdma: Add irdma Kconfig/Makefile and remove i40iw 
Add Kconfig and Makefile to build irdma driver.

Remove i40iw driver and add an alias in irdma.

Remove legacy exported symbols i40e_register_client
and i40e_unregister_client from i40e as they are no
longer used.

irdma is the replacement driver that supports X722.

Link: https://lore.kernel.org/r/20210602205138.889-16-shiraz.saleem@intel.com
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
 2021-06-02 20:06:36 -03:00
Roberto Sassu
1434c6a1d3 evm: Deprecate EVM_ALLOW_METADATA_WRITES 
This patch deprecates the usage of EVM_ALLOW_METADATA_WRITES, as it is no
longer necessary. All the issues that prevent the usage of EVM portable
signatures just with a public key loaded have been solved.

This flag will remain available for a short time to ensure that users are
able to use EVM without it.

Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com>
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
 2021-06-01 12:30:51 -04:00
Rajmohan Mani
faa1c615f0 thunderbolt: Add WRITE_ONLY and AUTHENTICATE_ONLY NVM operations for retimers 
The same way we support these two operations for USB4 routers we can
extend the retimer NVM operations to support retimers also.

Signed-off-by: Rajmohan Mani <rajmohan.mani@intel.com>
Co-developed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2021-06-01 10:53:32 +03:00
Mika Westerberg
1cbf680f76 thunderbolt: Allow router NVM authenticate separately 
It may be useful if the actual NVM authentication can be delayed to be
run later, for instance when the user logs out. For this reason add a
new NVM operation (AUHENTICATE_ONLY) that just triggers the authentication
procedure over whatever was written to the NVM storage.

This is not supported with Thunderbolt 1-3 devices, though.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2021-06-01 10:53:32 +03:00
Rajmohan Mani
3fb10ea4ce thunderbolt: Add support for retimer NVM upgrade when there is no link 
With help from platform firmware (ACPI) it is possible to power on
retimers even when there is no USB4 link (e.g nothing is connected to
the USB4 ports). This allows us to bring the USB4 sideband up so that we
can access retimers and upgrade their NVM firmware.

If the platform has support for this, we expose two additional
attributes under USB4 ports: offline and rescan. These can be used to
bring the port offline, rescan for the retimers and put the port online
again. The retimer NVM upgrade itself works the same way than with cable
connected.

Signed-off-by: Rajmohan Mani <rajmohan.mani@intel.com>
Co-developed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2021-06-01 10:53:31 +03:00
Mika Westerberg
cae5f5151d thunderbolt: Add USB4 port devices 
Create devices for each USB4 port. This is needed when we add retimer
access when there is no device connected but may be useful for other
purposes too following what USB subsystem does. This exports a single
attribute "link" that shows the type of the USB4 link (or "none" if
there is no cable connected).

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2021-06-01 10:53:31 +03:00
Mika Westerberg
68977e61ab Documentation / thunderbolt: Clean up entries 
Align the "What" entries along with the rest and move
nvm_authenticate_on_disconnect to correct place.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
 2021-05-31 14:39:45 +03:00
Mauro Carvalho Chehab
1e03fe2405 iio: ABI: sysfs-bus-iio: avoid a warning when doc is built 
The description of those vars produce this warning:
  Documentation/ABI/testing/sysfs-bus-iio:799: WARNING: Inline emphasis start-string without end-string.

Due to an asterisk, which is the markup for emphasis. One possible
fix would be to use ``*_timeout`` to avoid it, but looking at
the descriptions of other fields in this file, a common pattern
is to refer to "these" when talking about the API calls that
are described.

So, change the text in order to preserve the meaning while
avoiding the need of using an asterisk there.

Reported-by: Jonathan Corbet <corbet@lwn.net>
Reported-by: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/dbf0d94f85217f103d77dc8389c8db272f5702d2.1621944866.git.mchehab+huawei@kernel.org
[jc fixed specifiy->specify]
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
 2021-05-27 10:08:05 -06:00
Mauro Carvalho Chehab
b77e4c4e65 iio: ABI: sysfs-bus-iio: fix a typo 
Descrption -> Description

This causes some errors when parsed via scripts/get_abi.pl.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/fa90a2deebac80da42b1ad4cf570c4ace436577d.1621944866.git.mchehab+huawei@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
 2021-05-27 10:02:50 -06:00
Rajat Jain
c037b6c818 PCI: Add sysfs "removable" attribute 
A PCI device is "external_facing" if it's a Root Port with the ACPI
"ExternalFacingPort" property or if it has the DT "external-facing"
property.  We consider everything downstream from such a device to
be removable by user.

We're mainly concerned with consumer platforms with user accessible
Thunderbolt ports that are vulnerable to DMA attacks, and we expect those
ports to be identified by firmware as "ExternalFacingPort". Devices in
traditional hotplug slots can technically be removed, but the expectation
is that unless the port is marked with "ExternalFacingPort", such devices
are less accessible to user / may not be removed by end user, and thus not
exposed as "removable" to userspace.

This can be used to implement userspace policies tailored for
user removable devices. Eg usage:
https://chromium-review.googlesource.com/c/chromiumos/platform2/+/2591812
https://chromium-review.googlesource.com/c/chromiumos/platform2/+/2795038
(code uses such an attribute to remove external PCI devices or disable
features on them as needed by the policy desired)

Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Rajat Jain <rajatja@google.com>
Link: https://lore.kernel.org/r/20210524171812.18095-2-rajatja@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2021-05-27 09:36:31 +02:00
Rajat Jain
70f400d4d9 driver core: Move the "removable" attribute from USB to core 
Move the "removable" attribute from USB to core in order to allow it to be
supported by other subsystem / buses. Individual buses that want to support
this attribute can populate the removable property of the device while
enumerating it with the 3 possible values -
 - "unknown"
 - "fixed"
 - "removable"
Leaving the field unchanged (i.e. "not supported") would mean that the
attribute would not show up in sysfs for that device. The UAPI (location,
symantics etc) for the attribute remains unchanged.

Move the "removable" attribute from USB to the device core so it can be
used by other subsystems / buses.

By default, devices do not have a "removable" attribute in sysfs.

If a subsystem or bus driver wants to support a "removable" attribute, it
should call device_set_removable() before calling device_register() or
device_add(), e.g.:

    device_set_removable(dev, DEVICE_REMOVABLE);
    device_register(dev);

The possible values and the resulting sysfs attribute contents are:

    DEVICE_REMOVABLE_UNKNOWN  ->  "unknown"
    DEVICE_REMOVABLE          ->  "removable"
    DEVICE_FIXED              ->  "fixed"

Convert the USB "removable" attribute to use this new device core
functionality.  There should be no user-visible change in the location or
semantics of attribute for USB devices.

Reviewed-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Rajat Jain <rajatja@google.com>
Link: https://lore.kernel.org/r/20210524171812.18095-1-rajatja@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2021-05-27 09:36:31 +02:00
Chao Yu
8939a8489c f2fs: atgc: export entries for better tunability via sysfs 
This patch export below sysfs entries for better ATGC tunability.

/sys/fs/f2fs/<disk>/atgc_candidate_ratio
/sys/fs/f2fs/<disk>/atgc_candidate_count
/sys/fs/f2fs/<disk>/atgc_age_weight
/sys/fs/f2fs/<disk>/atgc_age_threshold

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
 2021-05-26 07:00:36 -07:00
Roberto Sassu
9acc89d31f evm: Refuse EVM_ALLOW_METADATA_WRITES only if an HMAC key is loaded 
EVM_ALLOW_METADATA_WRITES is an EVM initialization flag that can be set to
temporarily disable metadata verification until all xattrs/attrs necessary
to verify an EVM portable signature are copied to the file. This flag is
cleared when EVM is initialized with an HMAC key, to avoid that the HMAC is
calculated on unverified xattrs/attrs.

Currently EVM unnecessarily denies setting this flag if EVM is initialized
with a public key, which is not a concern as it cannot be used to trust
xattrs/attrs updates. This patch removes this limitation.

Fixes: ae1ba1676b ("EVM: Allow userland to permit modification of EVM-protected metadata")
Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com>
Cc: stable@vger.kernel.org # 4.16.x
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
 2021-05-21 12:47:08 -04:00
Luiz Sampaio
c999fbbdcf w1: ds2438: support for writing to offset register 
Added a sysfs entry to support writing to the offset register on page1.
This register is used to calibrate the chip canceling offset errors in the
current ADC. This means that, over time, reading the IAD register will not
return the correct current measurement, it will have an offset. Writing to
the offset register if the two's complement of the current register while
passing zero current to the load will calibrate the measurements. This
change was tested on real hardware and it was able to calibrate the chip
correctly.

Signed-off-by: Luiz Sampaio <sampaio.ime@gmail.com>
Link: https://lore.kernel.org/r/20210519223046.13798-7-sampaio.ime@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2021-05-21 14:51:33 +02:00