Jia He has noticed that commit b9f00e147f ("mm, page_alloc: reduce
branches in zone_statistics") has an unintentional side effect that
remote node allocation requests are accounted as NUMA_MISS rathat than
NUMA_HIT and NUMA_OTHER if such a request doesn't use __GFP_OTHER_NODE.
There are many of these potentially because the flag is used very rarely
while we have many users of __alloc_pages_node.
Fix this by simply ignoring __GFP_OTHER_NODE (it can be removed in a
follow up patch) and treat all allocations that were satisfied from the
preferred zone's node as NUMA_HITS because this is the same node we
requested the allocation from in most cases. If this is not the local
node then we just account it as NUMA_OTHER rather than NUMA_LOCAL.
One downsize would be that an allocation request for a node which is
outside of the mempolicy nodemask would be reported as a hit which is a
bit weird but that was the case before b9f00e147f already.
Fixes: b9f00e147f ("mm, page_alloc: reduce branches in zone_statistics")
Link: http://lkml.kernel.org/r/20170102153057.9451-2-mhocko@kernel.org
Signed-off-by: Michal Hocko <mhocko@suse.com>
Reported-by: Jia He <hejianet@gmail.com>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz> # with cbmc[1] superpowers
Acked-by: Mel Gorman <mgorman@suse.de>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Taku Izumi <izumi.taku@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Both arch_add_memory() and arch_remove_memory() expect a single threaded
context.
For example, arch/x86/mm/init_64.c::kernel_physical_mapping_init() does
not hold any locks over this check and branch:
if (pgd_val(*pgd)) {
pud = (pud_t *)pgd_page_vaddr(*pgd);
paddr_last = phys_pud_init(pud, __pa(vaddr),
__pa(vaddr_end),
page_size_mask);
continue;
}
pud = alloc_low_page();
paddr_last = phys_pud_init(pud, __pa(vaddr), __pa(vaddr_end),
page_size_mask);
The result is that two threads calling devm_memremap_pages()
simultaneously can end up colliding on pgd initialization. This leads
to crash signatures like the following where the loser of the race
initializes the wrong pgd entry:
BUG: unable to handle kernel paging request at ffff888ebfff0000
IP: memcpy_erms+0x6/0x10
PGD 2f8e8fc067 PUD 0 /* <---- Invalid PUD */
Oops: 0000 [#1] SMP DEBUG_PAGEALLOC
CPU: 54 PID: 3818 Comm: systemd-udevd Not tainted 4.6.7+ #13
task: ffff882fac290040 ti: ffff882f887a4000 task.ti: ffff882f887a4000
RIP: memcpy_erms+0x6/0x10
[..]
Call Trace:
? pmem_do_bvec+0x205/0x370 [nd_pmem]
? blk_queue_enter+0x3a/0x280
pmem_rw_page+0x38/0x80 [nd_pmem]
bdev_read_page+0x84/0xb0
Hold the standard memory hotplug mutex over calls to
arch_{add,remove}_memory().
Fixes: 41e94a8513 ("add devm_memremap_pages")
Link: http://lkml.kernel.org/r/148357647831.9498.12606007370121652979.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The crash happens rather often when we reset some cluster nodes while
nodes contend fiercely to do truncate and append.
The crash backtrace is below:
dlm: C21CBDA5E0774F4BA5A9D4F317717495: dlm_recover_grant 1 locks on 971 resources
dlm: C21CBDA5E0774F4BA5A9D4F317717495: dlm_recover 9 generation 5 done: 4 ms
ocfs2: Begin replay journal (node 318952601, slot 2) on device (253,18)
ocfs2: End replay journal (node 318952601, slot 2) on device (253,18)
ocfs2: Beginning quota recovery on device (253,18) for slot 2
ocfs2: Finishing quota recovery on device (253,18) for slot 2
(truncate,30154,1):ocfs2_truncate_file:470 ERROR: bug expression: le64_to_cpu(fe->i_size) != i_size_read(inode)
(truncate,30154,1):ocfs2_truncate_file:470 ERROR: Inode 290321, inode i_size = 732 != di i_size = 937, i_flags = 0x1
------------[ cut here ]------------
kernel BUG at /usr/src/linux/fs/ocfs2/file.c:470!
invalid opcode: 0000 [#1] SMP
Modules linked in: ocfs2_stack_user(OEN) ocfs2(OEN) ocfs2_nodemanager ocfs2_stackglue(OEN) quota_tree dlm(OEN) configfs fuse sd_mod iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi af_packet iscsi_ibft iscsi_boot_sysfs softdog xfs libcrc32c ppdev parport_pc pcspkr parport joydev virtio_balloon virtio_net i2c_piix4 acpi_cpufreq button processor ext4 crc16 jbd2 mbcache ata_generic cirrus virtio_blk ata_piix drm_kms_helper ahci syscopyarea libahci sysfillrect sysimgblt fb_sys_fops ttm floppy libata drm virtio_pci virtio_ring uhci_hcd virtio ehci_hcd usbcore serio_raw usb_common sg dm_multipath dm_mod scsi_dh_rdac scsi_dh_emc scsi_dh_alua scsi_mod autofs4
Supported: No, Unsupported modules are loaded
CPU: 1 PID: 30154 Comm: truncate Tainted: G OE N 4.4.21-69-default #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.8.1-0-g4adadbd-20151112_172657-sheep25 04/01/2014
task: ffff88004ff6d240 ti: ffff880074e68000 task.ti: ffff880074e68000
RIP: 0010:[<ffffffffa05c8c30>] [<ffffffffa05c8c30>] ocfs2_truncate_file+0x640/0x6c0 [ocfs2]
RSP: 0018:ffff880074e6bd50 EFLAGS: 00010282
RAX: 0000000000000074 RBX: 000000000000029e RCX: 0000000000000000
RDX: 0000000000000001 RSI: 0000000000000246 RDI: 0000000000000246
RBP: ffff880074e6bda8 R08: 000000003675dc7a R09: ffffffff82013414
R10: 0000000000034c50 R11: 0000000000000000 R12: ffff88003aab3448
R13: 00000000000002dc R14: 0000000000046e11 R15: 0000000000000020
FS: 00007f839f965700(0000) GS:ffff88007fc80000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 00007f839f97e000 CR3: 0000000036723000 CR4: 00000000000006e0
Call Trace:
ocfs2_setattr+0x698/0xa90 [ocfs2]
notify_change+0x1ae/0x380
do_truncate+0x5e/0x90
do_sys_ftruncate.constprop.11+0x108/0x160
entry_SYSCALL_64_fastpath+0x12/0x6d
Code: 24 28 ba d6 01 00 00 48 c7 c6 30 43 62 a0 8b 41 2c 89 44 24 08 48 8b 41 20 48 c7 c1 78 a3 62 a0 48 89 04 24 31 c0 e8 a0 97 f9 ff <0f> 0b 3d 00 fe ff ff 0f 84 ab fd ff ff 83 f8 fc 0f 84 a2 fd ff
RIP [<ffffffffa05c8c30>] ocfs2_truncate_file+0x640/0x6c0 [ocfs2]
It's because ocfs2_inode_lock() get us stale LVB in which the i_size is
not equal to the disk i_size. We mistakenly trust the LVB because the
underlaying fsdlm dlm_lock() doesn't set lkb_sbflags with
DLM_SBF_VALNOTVALID properly for us. But, why?
The current code tries to downconvert lock without DLM_LKF_VALBLK flag
to tell o2cb don't update RSB's LVB if it's a PR->NULL conversion, even
if the lock resource type needs LVB. This is not the right way for
fsdlm.
The fsdlm plugin behaves different on DLM_LKF_VALBLK, it depends on
DLM_LKF_VALBLK to decide if we care about the LVB in the LKB. If
DLM_LKF_VALBLK is not set, fsdlm will skip recovering RSB's LVB from
this lkb and set the right DLM_SBF_VALNOTVALID appropriately when node
failure happens.
The following diagram briefly illustrates how this crash happens:
RSB1 is inode metadata lock resource with LOCK_TYPE_USES_LVB;
The 1st round:
Node1 Node2
RSB1: PR
RSB1(master): NULL->EX
ocfs2_downconvert_lock(PR->NULL, set_lvb==0)
ocfs2_dlm_lock(no DLM_LKF_VALBLK)
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
dlm_lock(no DLM_LKF_VALBLK)
convert_lock(overwrite lkb->lkb_exflags
with no DLM_LKF_VALBLK)
RSB1: NULL RSB1: EX
reset Node2
dlm_recover_rsbs()
recover_lvb()
/* The LVB is not trustable if the node with EX fails and
* no lock >= PR is left. We should set RSB_VALNOTVALID for RSB1.
*/
if(!(kb_exflags & DLM_LKF_VALBLK)) /* This means we miss the chance to
return; * to invalid the LVB here.
*/
The 2nd round:
Node 1 Node2
RSB1(become master from recovery)
ocfs2_setattr()
ocfs2_inode_lock(NULL->EX)
/* dlm_lock() return the stale lvb without setting DLM_SBF_VALNOTVALID */
ocfs2_meta_lvb_is_trustable() return 1 /* so we don't refresh inode from disk */
ocfs2_truncate_file()
mlog_bug_on_msg(disk isize != i_size_read(inode)) /* crash! */
The fix is quite straightforward. We keep to set DLM_LKF_VALBLK flag
for dlm_lock() if the lock resource type needs LVB and the fsdlm plugin
is uesed.
Link: http://lkml.kernel.org/r/1481275846-6604-1-git-send-email-zren@suse.com
Signed-off-by: Eric Ren <zren@suse.com>
Reviewed-by: Joseph Qi <jiangqi903@gmail.com>
Cc: Mark Fasheh <mfasheh@versity.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit 01b3f52157 ("bpf: fix allocation warnings in bpf maps and
integer overflow") has added checks for the maximum allocateable size.
It (ab)used KMALLOC_SHIFT_MAX for that purpose.
While this is not incorrect it is not very clean because we already have
KMALLOC_MAX_SIZE for this very reason so let's change both checks to use
KMALLOC_MAX_SIZE instead.
The original motivation for using KMALLOC_SHIFT_MAX was to work around
an incorrect KMALLOC_MAX_SIZE which could lead to allocation warnings
but it is no longer needed since "slab: make sure that KMALLOC_MAX_SIZE
will fit into MAX_ORDER".
Link: http://lkml.kernel.org/r/20161220130659.16461-3-mhocko@kernel.org
Signed-off-by: Michal Hocko <mhocko@suse.com>
Acked-by: Christoph Lameter <cl@linux.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andrey Konovalov has reported the following warning triggered by the
syzkaller fuzzer.
WARNING: CPU: 1 PID: 9935 at mm/page_alloc.c:3511 __alloc_pages_nodemask+0x159c/0x1e20
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 9935 Comm: syz-executor0 Not tainted 4.9.0-rc7+ #34
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
Call Trace:
__alloc_pages_slowpath mm/page_alloc.c:3511
__alloc_pages_nodemask+0x159c/0x1e20 mm/page_alloc.c:3781
alloc_pages_current+0x1c7/0x6b0 mm/mempolicy.c:2072
alloc_pages include/linux/gfp.h:469
kmalloc_order+0x1f/0x70 mm/slab_common.c:1015
kmalloc_order_trace+0x1f/0x160 mm/slab_common.c:1026
kmalloc_large include/linux/slab.h:422
__kmalloc+0x210/0x2d0 mm/slub.c:3723
kmalloc include/linux/slab.h:495
ep_write_iter+0x167/0xb50 drivers/usb/gadget/legacy/inode.c:664
new_sync_write fs/read_write.c:499
__vfs_write+0x483/0x760 fs/read_write.c:512
vfs_write+0x170/0x4e0 fs/read_write.c:560
SYSC_write fs/read_write.c:607
SyS_write+0xfb/0x230 fs/read_write.c:599
entry_SYSCALL_64_fastpath+0x1f/0xc2
The issue is caused by a lack of size check for the request size in
ep_write_iter which should be fixed. It, however, points to another
problem, that SLUB defines KMALLOC_MAX_SIZE too large because the its
KMALLOC_SHIFT_MAX is (MAX_ORDER + PAGE_SHIFT) which means that the
resulting page allocator request might be MAX_ORDER which is too large
(see __alloc_pages_slowpath).
The same applies to the SLOB allocator which allows even larger sizes.
Make sure that they are capped properly and never request more than
MAX_ORDER order.
Link: http://lkml.kernel.org/r/20161220130659.16461-2-mhocko@kernel.org
Signed-off-by: Michal Hocko <mhocko@suse.com>
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Christoph Lameter <cl@linux.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Currently dax_mapping_entry_mkclean() fails to clean and write protect
the pmd_t of a DAX PMD entry during an *sync operation. This can result
in data loss in the following sequence:
1) mmap write to DAX PMD, dirtying PMD radix tree entry and making the
pmd_t dirty and writeable
2) fsync, flushing out PMD data and cleaning the radix tree entry. We
currently fail to mark the pmd_t as clean and write protected.
3) more mmap writes to the PMD. These don't cause any page faults since
the pmd_t is dirty and writeable. The radix tree entry remains clean.
4) fsync, which fails to flush the dirty PMD data because the radix tree
entry was clean.
5) crash - dirty data that should have been fsync'd as part of 4) could
still have been in the processor cache, and is lost.
Fix this by marking the pmd_t clean and write protected in
dax_mapping_entry_mkclean(), which is called as part of the fsync
operation 2). This will cause the writes in step 3) above to generate
page faults where we'll re-dirty the PMD radix tree entry, resulting in
flushes in the fsync that happens in step 4).
Fixes: 4b4bb46d00 ("dax: clear dirty entry tags on cache flush")
Link: http://lkml.kernel.org/r/1482272586-21177-3-git-send-email-ross.zwisler@linux.intel.com
Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Matthew Wilcox <mawilcox@microsoft.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Patch series "Write protect DAX PMDs in *sync path".
Currently dax_mapping_entry_mkclean() fails to clean and write protect
the pmd_t of a DAX PMD entry during an *sync operation. This can result
in data loss, as detailed in patch 2.
This series is based on Dan's "libnvdimm-pending" branch, which is the
current home for Jan's "dax: Page invalidation fixes" series. You can
find a working tree here:
https://git.kernel.org/cgit/linux/kernel/git/zwisler/linux.git/log/?h=dax_pmd_clean
This patch (of 2):
Similar to follow_pte(), follow_pte_pmd() allows either a PTE leaf or a
huge page PMD leaf to be found and returned.
Link: http://lkml.kernel.org/r/1482272586-21177-2-git-send-email-ross.zwisler@linux.intel.com
Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Suggested-by: Dave Hansen <dave.hansen@intel.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Matthew Wilcox <mawilcox@microsoft.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
With THP page cache, when trying to build a huge page from regular pte
pages, we just clear the pmd entry. We will take another fault and at
that point we will find the huge page in the radix tree, thereby using
the huge page to complete the page fault
The second fault path will allocate the needed pgtable_t page for archs
like ppc64. So no need to deposit the same in collapse path.
Depositing them in the collapse path resulting in a pgtable_t memory
leak also giving errors like
BUG: non-zero nr_ptes on freeing mm: 3
Fixes: 953c66c2b2 ("mm: THP page cache support for ppc64")
Link: http://lkml.kernel.org/r/20161212163428.6780-2-aneesh.kumar@linux.vnet.ibm.com
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Currently in DAX if we have three read faults on the same hole address we
can end up with the following:
Thread 0 Thread 1 Thread 2
-------- -------- --------
dax_iomap_fault
grab_mapping_entry
lock_slot
<locks empty DAX entry>
dax_iomap_fault
grab_mapping_entry
get_unlocked_mapping_entry
<sleeps on empty DAX entry>
dax_iomap_fault
grab_mapping_entry
get_unlocked_mapping_entry
<sleeps on empty DAX entry>
dax_load_hole
find_or_create_page
...
page_cache_tree_insert
dax_wake_mapping_entry_waiter
<wakes one sleeper>
__radix_tree_replace
<swaps empty DAX entry with 4k zero page>
<wakes>
get_page
lock_page
...
put_locked_mapping_entry
unlock_page
put_page
<sleeps forever on the DAX
wait queue>
The crux of the problem is that once we insert a 4k zero page, all
locking from then on is done in terms of that 4k zero page and any
additional threads sleeping on the empty DAX entry will never be woken.
Fix this by waking all sleepers when we replace the DAX radix tree entry
with a 4k zero page. This will allow all sleeping threads to
successfully transition from locking based on the DAX empty entry to
locking on the 4k zero page.
With the test case reported by Xiong this happens very regularly in my
test setup, with some runs resulting in 9+ threads in this deadlocked
state. With this fix I've been able to run that same test dozens of
times in a loop without issue.
Fixes: ac401cc782 ("dax: New fault locking")
Link: http://lkml.kernel.org/r/1483479365-13607-1-git-send-email-ross.zwisler@linux.intel.com
Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Reported-by: Xiong Zhou <xzhou@redhat.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: <stable@vger.kernel.org> [4.7+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
I have noticed that two different descriptions for B: entries in
MAINTAINERS were merged: commit 686564434e ("MAINTAINERS: Add bug
tracking system location entry type") and 2de2bd95f4 ("MAINTAINERS:
add "B:" for URI where to file bugs").
This patch keeps the description from 2de2bd95f4. There has been a
discussion [1] about whether this more detailed description is useful
and what it exactly implies. I find it more useful and general, and the
author of 686564434e agreed in the end that either is fine.
[1] https://lkml.org/lkml/2016/12/8/71
Link: http://lkml.kernel.org/r/20161219085158.12114-1-vbabka@suse.cz
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Merge tag 'drm-fixes-for-v4.10-rc4' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"amdgpu, radeon, msm, meson, tilcdc, drm fixes.
Just back online for a couple of days, gathered up the remaining fixes
pull requests.
This contains fixes for a few ARM platforms (msm, tilcdc, meson), and
one core atomic fix. The AMD pull has some new hardware support
(Polaris12) in it, but this is pretty limited to just hw enablement
and shouldn't cause any problems"
* tag 'drm-fixes-for-v4.10-rc4' of git://people.freedesktop.org/~airlied/linux:
drm/amdgpu: drop verde dpm quirks
drm/radeon: drop verde dpm quirks
drm/radeon: update smc firmware selection for SI
drm/amdgpu: update si kicker smc firmware
drm/amd/powerplay: extend smu's response timeout time.
drm/amdgpu: remove static integer for uvd pp state
drm/amd/amdgpu: add Polaris12 PCI ID
drm/amdgpu/powerplay: add Polaris12 support
drm/amd/amdgpu: add Polaris12 support (v3)
MAINTAINERS: Update mailing list for radeon and amdgpu
drm/meson: Fix CVBS VDAC disable
drm/meson: Fix CVBS initialization when HDMI is configured by bootloader
drm: Clean up planes in atomic commit helper failure path
drm: tilcdc: simplify the recovery from sync lost error on rev1
drm/meson: Fix plane atomic check when no crtc for the plane
drm/msm: Verify that MSM_SUBMIT_BO_FLAGS are set
drm/msm: Put back the vaddr in submit_reloc()
drm/msm: Ensure that the hardware write pointer is valid
- Move free:ing of GPIO hogs to after free:ing the device
to get rid of a warning state.
- A small comile warning fix.
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Merge tag 'gpio-v4.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO fixes from Linus Walleij:
- move freeing of GPIO hogs to after freeing the device to get rid of a
warning state.
- a small compile warning fix
* tag 'gpio-v4.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio: Move freeing of GPIO hogs before numbing of the device
gpio: mxs: remove __init annotation
Pull networking fixes from David Miller:
1) Fix dumping of nft_quota entries, from Pablo Neira Ayuso.
2) Fix out of bounds access in nf_tables discovered by KASAN, from
Florian Westphal.
3) Fix IRQ enabling in dp83867 driver, from Grygorii Strashko.
4) Fix unicast filtering in be2net driver, from Ivan Vecera.
5) tg3_get_stats64() can race with driver close and ethtool
reconfigurations, fix from Michael Chan.
6) Fix error handling when pass limit is reached in bpf code gen on
x86. From Daniel Borkmann.
7) Don't clobber switch ops and use proper MDIO nested reads and writes
in bcm_sf2 driver, from Florian Fainelli.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (21 commits)
net: dsa: bcm_sf2: Utilize nested MDIO read/write
net: dsa: bcm_sf2: Do not clobber b53_switch_ops
net: stmmac: fix maxmtu assignment to be within valid range
bpf: change back to orig prog on too many passes
tg3: Fix race condition in tg3_get_stats64().
be2net: fix unicast list filling
be2net: fix accesses to unicast list
netlabel: add CALIPSO to the list of built-in protocols
vti6: fix device register to report IFLA_INFO_KIND
net: phy: dp83867: fix irq generation
amd-xgbe: Fix IRQ processing when running in single IRQ mode
sh_eth: R8A7740 supports packet shecksumming
sh_eth: fix EESIPR values for SH77{34|63}
r8169: fix the typo in the comment
nl80211: fix sched scan netlink socket owner destruction
bridge: netfilter: Fix dropping packets that moving through bridge interface
netfilter: ipt_CLUSTERIP: check duplicate config when initializing
netfilter: nft_payload: mangle ckecksum if NFT_PAYLOAD_L4CSUM_PSEUDOHDR is set
netfilter: nf_tables: fix oob access
netfilter: nft_queue: use raw_smp_processor_id()
...
Florian Fainelli says:
====================
net: dsa: bcm_sf2: Couple fixes
Here are a couple of fixes for bcm_sf2, please queue these up for -stable
as well, thank you very much!
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
We are implementing a MDIO bus which is behind another one, so use the
nested version of the accessors to get lockdep annotations correct.
Fixes: 461cd1b03e ("net: dsa: bcm_sf2: Register our slave MDIO bus")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
We make the bcm_sf2 driver override ds->ops which points to
b53_switch_ops since b53_switch_alloc() did the assignent. This is all
well and good until a second b53 switch comes in, and ends up using the
bcm_sf2 operations. Make a proper local copy, substitute the ds->ops
pointer and then override the operations.
Fixes: f458995b9a ("net: dsa: bcm_sf2: Utilize core B53 driver when possible")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fixes for 4.10:
- Polaris 12 support
- Add new amd-gfx mailing list to MAINTAINERS file
- UVD clockgating fix
- SI dpm fixes
* 'drm-fixes-4.10' of git://people.freedesktop.org/~agd5f/linux:
drm/amdgpu: drop verde dpm quirks
drm/radeon: drop verde dpm quirks
drm/radeon: update smc firmware selection for SI
drm/amdgpu: update si kicker smc firmware
drm/amd/powerplay: extend smu's response timeout time.
drm/amdgpu: remove static integer for uvd pp state
drm/amd/amdgpu: add Polaris12 PCI ID
drm/amdgpu/powerplay: add Polaris12 support
drm/amd/amdgpu: add Polaris12 support (v3)
MAINTAINERS: Update mailing list for radeon and amdgpu
There is no checking valid value of maxmtu when getting it from
device tree. This resolution added the checking condition to
ensure the assignment is made within a valid range.
Signed-off-by: Kweh, Hock Leong <hock.leong.kweh@intel.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
A few fixes for 4.10.. the first fixes a long-standing logic bug, that
by luck (ie. size of packets written into RB for a submit) wasn't hit
on a3xx/a4xx but was causing intermittent GPU lockups on a5xx. And a
couple other robustness issues that Jordan noticed.
* 'msm-fixes-4.10' of git://people.freedesktop.org/~robclark/linux:
drm/msm: Verify that MSM_SUBMIT_BO_FLAGS are set
drm/msm: Put back the vaddr in submit_reloc()
drm/msm: Ensure that the hardware write pointer is valid
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Merge tag 'tilcdc-4.10-fixes' of https://github.com/jsarha/linux into drm-fixes
tilcdc fixes for v4.10.
* tag 'tilcdc-4.10-fixes' of https://github.com/jsarha/linux:
drm: tilcdc: simplify the recovery from sync lost error on rev1
single drm fix.
* tag 'drm-misc-fixes-2017-01-04' of git://anongit.freedesktop.org/git/drm-misc:
drm: Clean up planes in atomic commit helper failure path
If after too many passes still no image could be emitted, then
swap back to the original program as we do in all other cases
and don't use the one with blinding.
Fixes: 959a757916 ("bpf, x86: add support for constant blinding")
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Here are a bunch of USB fixes for 4.10-rc3. Yeah, it's a lot, an
artifact of the holiday break I think. Lots of gadget and the usual
XHCI fixups for reported issues (one day that driver will calm down...)
Also included are a bunch of usb-serial driver fixes, and for good
measure, a number of much-reported MUSB driver issues have finally been
resolved.
All of these have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are a bunch of USB fixes for 4.10-rc3. Yeah, it's a lot, an
artifact of the holiday break I think.
Lots of gadget and the usual XHCI fixups for reported issues (one day
that driver will calm down...) Also included are a bunch of usb-serial
driver fixes, and for good measure, a number of much-reported MUSB
driver issues have finally been resolved.
All of these have been in linux-next with no reported issues"
* tag 'usb-4.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (72 commits)
USB: fix problems with duplicate endpoint addresses
usb: ohci-at91: use descriptor-based gpio APIs correctly
usb: storage: unusual_uas: Add JMicron JMS56x to unusual device
usb: hub: Move hub_port_disable() to fix warning if PM is disabled
usb: musb: blackfin: add bfin_fifo_offset in bfin_ops
usb: musb: fix compilation warning on unused function
usb: musb: Fix trying to free already-free IRQ 4
usb: musb: dsps: implement clear_ep_rxintr() callback
usb: musb: core: add clear_ep_rxintr() to musb_platform_ops
USB: serial: ti_usb_3410_5052: fix NULL-deref at open
USB: serial: spcp8x5: fix NULL-deref at open
USB: serial: quatech2: fix sleep-while-atomic in close
USB: serial: pl2303: fix NULL-deref at open
USB: serial: oti6858: fix NULL-deref at open
USB: serial: omninet: fix NULL-derefs at open and disconnect
USB: serial: mos7840: fix misleading interrupt-URB comment
USB: serial: mos7840: remove unused write URB
USB: serial: mos7840: fix NULL-deref at open
USB: serial: mos7720: remove obsolete port initialisation
USB: serial: mos7720: fix parallel probe
...
Here are a few small char/misc driver fixes for 4.10-rc3.
2 MEI driver fixes, and 3 NVMEM patches for reported issues, and a new
Hyper-V driver MAINTAINER update. Nothing major at all, all have been
in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-4.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc fixes from Greg KH:
"Here are a few small char/misc driver fixes for 4.10-rc3.
Two MEI driver fixes, and three NVMEM patches for reported issues, and
a new Hyper-V driver MAINTAINER update. Nothing major at all, all have
been in linux-next with no reported issues"
* tag 'char-misc-4.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
hyper-v: Add myself as additional MAINTAINER
nvmem: fix nvmem_cell_read() return type doc
nvmem: imx-ocotp: Fix wrong register size
nvmem: qfprom: Allow single byte accesses for read/write
mei: move write cb to completion on credentials failures
mei: bus: fix mei_cldev_enable KDoc
Here are some staging and IIO driver fixes for 4.10-rc3.
Most of these are minor IIO fixes of reported issues, along with one
network driver fix to resolve an issue. And a MAINTAINERS update with a
new mailing list. All of these, except the MAINTAINERS file update,
have been in linux-next with no reported issues (the MAINTAINERS patch
happened on Friday...)
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-4.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging/IIO fixes from Greg KH:
"Here are some staging and IIO driver fixes for 4.10-rc3.
Most of these are minor IIO fixes of reported issues, along with one
network driver fix to resolve an issue. And a MAINTAINERS update with
a new mailing list. All of these, except the MAINTAINERS file update,
have been in linux-next with no reported issues (the MAINTAINERS patch
happened on Friday...)"
* tag 'staging-4.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
MAINTAINERS: add greybus subsystem mailing list
staging: octeon: Call SET_NETDEV_DEV()
iio: accel: st_accel: fix LIS3LV02 reading and scaling
iio: common: st_sensors: fix channel data parsing
iio: max44000: correct value in illuminance_integration_time_available
iio: adc: TI_AM335X_ADC should depend on HAS_DMA
iio: bmi160: Fix time needed to sleep after command execution
iio: 104-quad-8: Fix active level mismatch for the preset enable option
iio: 104-quad-8: Fix off-by-one errors when addressing IOR
iio: 104-quad-8: Fix index control configuration
The driver's ndo_get_stats64() method is not always called under RTNL.
So it can race with driver close or ethtool reconfigurations. Fix the
race condition by taking tp->lock spinlock in tg3_free_consistent()
when freeing the tp->hw_stats memory block. tg3_get_stats64() is
already taking tp->lock.
Reported-by: Wang Yufen <wangyufen@huawei.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The adapter->pmac_id[0] item is used for primary MAC address but
this is not true for adapter->uc_list[0] as is assumed in
be_set_uc_list(). There are N UC addresses copied first from net_device
to adapter->uc_list[1..N] and then N UC addresses from
adapter->uc_list[0..N-1] are sent to HW. So the last UC address is never
stored into HW and address 00:00:00:00;00:00 (from uc_list[0]) is used
instead.
Cc: Sathya Perla <sathya.perla@broadcom.com>
Cc: Ajit Khaparde <ajit.khaparde@broadcom.com>
Cc: Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com>
Cc: Somnath Kotur <somnath.kotur@broadcom.com>
Fixes: b717241 be2net: replace polling with sleeping in the FW completion path
Signed-off-by: Ivan Vecera <cera@cera.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
Several people report seeing warnings about inconsistent radix tree
nodes followed by crashes in the workingset code, which all looked like
use-after-free access from the shadow node shrinker.
Dave Jones managed to reproduce the issue with a debug patch applied,
which confirmed that the radix tree shrinking indeed frees shadow nodes
while they are still linked to the shadow LRU:
WARNING: CPU: 2 PID: 53 at lib/radix-tree.c:643 delete_node+0x1e4/0x200
CPU: 2 PID: 53 Comm: kswapd0 Not tainted 4.10.0-rc2-think+ #3
Call Trace:
delete_node+0x1e4/0x200
__radix_tree_delete_node+0xd/0x10
shadow_lru_isolate+0xe6/0x220
__list_lru_walk_one.isra.4+0x9b/0x190
list_lru_walk_one+0x23/0x30
scan_shadow_nodes+0x2e/0x40
shrink_slab.part.44+0x23d/0x5d0
shrink_node+0x22c/0x330
kswapd+0x392/0x8f0
This is the WARN_ON_ONCE(!list_empty(&node->private_list)) placed in the
inlined radix_tree_shrink().
The problem is with 14b468791f ("mm: workingset: move shadow entry
tracking to radix tree exceptional tracking"), which passes an update
callback into the radix tree to link and unlink shadow leaf nodes when
tree entries change, but forgot to pass the callback when reclaiming a
shadow node.
While the reclaimed shadow node itself is unlinked by the shrinker, its
deletion from the tree can cause the left-most leaf node in the tree to
be shrunk. If that happens to be a shadow node as well, we don't unlink
it from the LRU as we should.
Consider this tree, where the s are shadow entries:
root->rnode
|
[0 n]
| |
[s ] [sssss]
Now the shadow node shrinker reclaims the rightmost leaf node through
the shadow node LRU:
root->rnode
|
[0 ]
|
[s ]
Because the parent of the deleted node is the first level below the
root and has only one child in the left-most slot, the intermediate
level is shrunk and the node containing the single shadow is put in
its place:
root->rnode
|
[s ]
The shrinker again sees a single left-most slot in a first level node
and thus decides to store the shadow in root->rnode directly and free
the node - which is a leaf node on the shadow node LRU.
root->rnode
|
s
Without the update callback, the freed node remains on the shadow LRU,
where it causes later shrinker runs to crash.
Pass the node updater callback into __radix_tree_delete_node() in case
the deletion causes the left-most branch in the tree to collapse too.
Also add warnings when linked nodes are freed right away, rather than
wait for the use-after-free when the list is scanned much later.
Fixes: 14b468791f ("mm: workingset: move shadow entry tracking to radix tree exceptional tracking")
Reported-by: Dave Chinner <david@fromorbit.com>
Reported-by: Hugh Dickins <hughd@google.com>
Reported-by: Andrea Arcangeli <aarcange@redhat.com>
Reported-and-tested-by: Dave Jones <davej@codemonkey.org.uk>
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Chris Leech <cleech@redhat.com>
Cc: Lee Duncan <lduncan@suse.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Matthew Wilcox <mawilcox@linuxonhyperv.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
4.10-rc loadtest (even on x86, and even without THPCache) fails with
"fork: Cannot allocate memory" or some such; and /proc/meminfo shows
PageTables growing.
Commit 953c66c2b2 ("mm: THP page cache support for ppc64") that got
merged in rc1 removed the freeing of an unused preallocated pagetable
after do_fault_around() has called map_pages().
This is usually a good optimization, so that the followup doesn't have
to reallocate one; but it's not sufficient to shift the freeing into
alloc_set_pte(), since there are failure cases (most commonly
VM_FAULT_RETRY) which never reach finish_fault().
Check and free it at the outer level in do_fault(), then we don't need
to worry in alloc_set_pte(), and can restore that to how it was (I
cannot find any reason to pte_free() under lock as it was doing).
And fix a separate pagetable leak, or crash, introduced by the same
change, that could only show up on some ppc64: why does do_set_pmd()'s
failure case attempt to withdraw a pagetable when it never deposited
one, at the same time overwriting (so leaking) the vmf->prealloc_pte?
Residue of an earlier implementation, perhaps? Delete it.
Fixes: 953c66c2b2 ("mm: THP page cache support for ppc64")
Cc: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Michael Neuling <mikey@neuling.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Balbir Singh <bsingharora@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull kbuild fix from Michal Marek:
"The asm-prototypes.h file added in the last merge window results in
invalid code with CONFIG_KMEMCHECK=y. The net result is that genksyms
segfaults.
This pull request fixes the header, the genksyms fix is in my kbuild
branch for 4.11"
* 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
asm-prototypes: Clear any CPP defines before declaring the functions
The Greybus driver subsystem has a mailing list, so list it in the
MAINTAINERS file so that people know to send patches there as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Commit 988d44b "be2net: Avoid redundant addition of mac address in HW"
introduced be_dev_mac_add & be_uc_mac_add helpers that incorrectly
access adapter->uc_list as an array of bytes instead of an array of
be_eth_addr. Consequently NIC is not filled with valid data so unicast
filtering is broken.
Cc: Sathya Perla <sathya.perla@broadcom.com>
Cc: Ajit Khaparde <ajit.khaparde@broadcom.com>
Cc: Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com>
Cc: Somnath Kotur <somnath.kotur@broadcom.com>
Fixes: 988d44b be2net: Avoid redundant addition of mac address in HW
Signed-off-by: Ivan Vecera <cera@cera.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
When we added CALIPSO support in Linux v4.8 we forgot to add it to the
list of supported protocols with display at boot.
Signed-off-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Nothing particular stands out, only a few small fixes for USB-audio,
HD-audio and Firewire. The USB-audio fix is the respin of the
previous race fix after a revert due to the regression.
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Merge tag 'sound-4.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Nothing particular stands out, only a few small fixes for USB-audio,
HD-audio and Firewire. The USB-audio fix is the respin of the previous
race fix after a revert due to the regression"
* tag 'sound-4.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
Revert "ALSA: firewire-lib: change structure member with proper type"
ALSA: usb-audio: test EP_FLAG_RUNNING at urb completion
ALSA: usb-audio: Fix irq/process data synchronization
ALSA: hda - Apply asus-mode8 fixup to ASUS X71SL
ALSA: hda - Fix up GPIO for ASUS ROG Ranger
ALSA: firewire-lib: change structure member with proper type
ALSA: firewire-tascam: Fix to handle error from initialization of stream data
ALSA: fireworks: fix asymmetric API call at unit removal
turn all the clks on and another fix for stm32f4 SoCs where we have multiple
drivers attaching to the same DT node.
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Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk fixes from Stephen Boyd:
"One fix for a broken driver on Renesas RZ/A1 SoCs with bootloaders
that don't turn all the clks on and another fix for stm32f4 SoCs where
we have multiple drivers attaching to the same DT node"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: stm32f4: Use CLK_OF_DECLARE_DRIVER initialization method
clk: renesas: mstp: Support 8-bit registers for r7s72100
MIPS: (both for stable)
- fix host kernel crashes when receiving a signal with 64-bit userspace
- flush instruction cache on all vcpus after generating entry code
x86:
- fix NULL dereference in MMU caused by SMM transitions (for stable)
- correct guest instruction pointer after emulating some VMX errors
- minor cleanup
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM fixes from Radim Krčmář:
"MIPS:
- fix host kernel crashes when receiving a signal with 64-bit
userspace
- flush instruction cache on all vcpus after generating entry code
(both for stable)
x86:
- fix NULL dereference in MMU caused by SMM transitions (for stable)
- correct guest instruction pointer after emulating some VMX errors
- minor cleanup"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: VMX: remove duplicated declaration
KVM: MIPS: Flush KVM entry code from icache globally
KVM: MIPS: Don't clobber CP0_Status.UX
KVM: x86: reset MMU on KVM_SET_VCPU_EVENTS
KVM: nVMX: fix instruction skipping during emulated vm-entry
Port of radeon change to amdgpu.
Acked-by: Edward O'Callaghan <funfunctor@folklore1984.net>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Use the appropriate smc firmware for each chip revision.
Using the wrong one can cause stability issues.
Acked-by: Edward O'Callaghan <funfunctor@folklore1984.net>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Use the appropriate smc firmware for each chip revision.
Using the wrong one can cause stability issues.
Acked-by: Edward O'Callaghan <funfunctor@folklore1984.net>
Signed-off-by: Flora Cui <Flora.Cui@amd.com>
Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
At two gpu core condition, static integer will cause that second gpu
core uvd state setting will be directly skipped due to the first one
setting
Signed-off-by: Yintian Tao <yttao@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Junwei Zhang <Jerry.Zhang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Ken Wang <Qingqing.Wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Junwei Zhang <Jerry.Zhang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Ken Wang <Qingqing.Wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
v2: agd: squash in various fixes
v3: agd: squash in:
drm/amdgpu: remove unnecessary smc sk firmware for polaris12
Signed-off-by: Junwei Zhang <Jerry.Zhang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Ken Wang <Qingqing.Wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
