Commit Graph

902551 Commits

Author SHA1 Message Date
Roman Gushchin 8380ce4790 mm: fork: fix kernel_stack memcg stats for various stack implementations
Depending on CONFIG_VMAP_STACK and the THREAD_SIZE / PAGE_SIZE ratio the
space for task stacks can be allocated using __vmalloc_node_range(),
alloc_pages_node() and kmem_cache_alloc_node().

In the first and the second cases page->mem_cgroup pointer is set, but
in the third it's not: memcg membership of a slab page should be
determined using the memcg_from_slab_page() function, which looks at
page->slab_cache->memcg_params.memcg .  In this case, using
mod_memcg_page_state() (as in account_kernel_stack()) is incorrect:
page->mem_cgroup pointer is NULL even for pages charged to a non-root
memory cgroup.

It can lead to kernel_stack per-memcg counters permanently showing 0 on
some architectures (depending on the configuration).

In order to fix it, let's introduce a mod_memcg_obj_state() helper,
which takes a pointer to a kernel object as a first argument, uses
mem_cgroup_from_obj() to get a RCU-protected memcg pointer and calls
mod_memcg_state().  It allows to handle all possible configurations
(CONFIG_VMAP_STACK and various THREAD_SIZE/PAGE_SIZE values) without
spilling any memcg/kmem specifics into fork.c .

Note: This is a special version of the patch created for stable
backports.  It contains code from the following two patches:
  - mm: memcg/slab: introduce mem_cgroup_from_obj()
  - mm: fork: fix kernel_stack memcg stats for various stack implementations

[guro@fb.com: introduce mem_cgroup_from_obj()]
  Link: http://lkml.kernel.org/r/20200324004221.GA36662@carbon.dhcp.thefacebook.com
Fixes: 4d96ba3530 ("mm: memcg/slab: stop setting page->mem_cgroup pointer for slab pages")
Signed-off-by: Roman Gushchin <guro@fb.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Shakeel Butt <shakeelb@google.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Bharata B Rao <bharata@linux.ibm.com>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: <stable@vger.kernel.org>
Link: http://lkml.kernel.org/r/20200303233550.251375-1-guro@fb.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-03-29 09:47:05 -07:00
Mina Almasry 726b7bbeaf hugetlb_cgroup: fix illegal access to memory
This appears to be a mistake in commit faced7e080 ("mm: hugetlb
controller for cgroups v2").

Essentially that commit does a hugetlb_cgroup_from_counter assuming that
page_counter_try_charge has initialized counter.

But if that has failed then it seems will not initialize counter, so
hugetlb_cgroup_from_counter(counter) ends up pointing to random memory,
causing kasan to complain.

The solution is to simply use 'h_cg', instead of
hugetlb_cgroup_from_counter(counter), since that is a reference to the
hugetlb_cgroup anyway.  After this change kasan ceases to complain.

Fixes: faced7e080 ("mm: hugetlb controller for cgroups v2")
Reported-by: syzbot+cac0c4e204952cf449b1@syzkaller.appspotmail.com
Signed-off-by: Mina Almasry <almasrymina@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Giuseppe Scrivano <gscrivan@redhat.com>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: David Rientjes <rientjes@google.com>
Link: http://lkml.kernel.org/r/20200313223920.124230-1-almasrymina@google.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-03-29 09:47:05 -07:00
David Hildenbrand 53cdc1cb29 drivers/base/memory.c: indicate all memory blocks as removable
We see multiple issues with the implementation/interface to compute
whether a memory block can be offlined (exposed via
/sys/devices/system/memory/memoryX/removable) and would like to simplify
it (remove the implementation).

1. It runs basically lockless. While this might be good for performance,
   we see possible races with memory offlining that will require at
   least some sort of locking to fix.

2. Nowadays, more false positives are possible. No arch-specific checks
   are performed that validate if memory offlining will not be denied
   right away (and such check will require locking). For example, arm64
   won't allow to offline any memory block that was added during boot -
   which will imply a very high error rate. Other archs have other
   constraints.

3. The interface is inherently racy. E.g., if a memory block is detected
   to be removable (and was not a false positive at that time), there is
   still no guarantee that offlining will actually succeed. So any
   caller already has to deal with false positives.

4. It is unclear which performance benefit this interface actually
   provides. The introducing commit 5c755e9fd8 ("memory-hotplug: add
   sysfs removable attribute for hotplug memory remove") mentioned

	"A user-level agent must be able to identify which sections
	 of memory are likely to be removable before attempting the
	 potentially expensive operation."

   However, no actual performance comparison was included.

Known users:

 - lsmem: Will group memory blocks based on the "removable" property. [1]

 - chmem: Indirect user. It has a RANGE mode where one can specify
          removable ranges identified via lsmem to be offlined. However,
          it also has a "SIZE" mode, which allows a sysadmin to skip the
          manual "identify removable blocks" step. [2]

 - powerpc-utils: Uses the "removable" attribute to skip some memory
          blocks right away when trying to find some to offline+remove.
          However, with ballooning enabled, it already skips this
          information completely (because it once resulted in many false
          negatives). Therefore, the implementation can deal with false
          positives properly already. [3]

According to Nathan Fontenot, DLPAR on powerpc is nowadays no longer
driven from userspace via the drmgr command (powerpc-utils).  Nowadays
it's managed in the kernel - including onlining/offlining of memory
blocks - triggered by drmgr writing to /sys/kernel/dlpar.  So the
affected legacy userspace handling is only active on old kernels.  Only
very old versions of drmgr on a new kernel (unlikely) might execute
slower - totally acceptable.

With CONFIG_MEMORY_HOTREMOVE, always indicating "removable" should not
break any user space tool.  We implement a very bad heuristic now.
Without CONFIG_MEMORY_HOTREMOVE we cannot offline anything, so report
"not removable" as before.

Original discussion can be found in [4] ("[PATCH RFC v1] mm:
is_mem_section_removable() overhaul").

Other users of is_mem_section_removable() will be removed next, so that
we can remove is_mem_section_removable() completely.

[1] http://man7.org/linux/man-pages/man1/lsmem.1.html
[2] http://man7.org/linux/man-pages/man8/chmem.8.html
[3] https://github.com/ibm-power-utilities/powerpc-utils
[4] https://lkml.kernel.org/r/20200117105759.27905-1-david@redhat.com

Also, this patch probably fixes a crash reported by Steve.
http://lkml.kernel.org/r/CAPcyv4jpdaNvJ67SkjyUJLBnBnXXQv686BiVW042g03FUmWLXw@mail.gmail.com

Reported-by: "Scargall, Steve" <steve.scargall@intel.com>
Suggested-by: Michal Hocko <mhocko@kernel.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Nathan Fontenot <ndfont@gmail.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Cc: Badari Pulavarty <pbadari@us.ibm.com>
Cc: Robert Jennings <rcj@linux.vnet.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Karel Zak <kzak@redhat.com>
Cc: <stable@vger.kernel.org>
Link: http://lkml.kernel.org/r/20200128093542.6908-1-david@redhat.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-03-29 09:47:05 -07:00
Naohiro Aota d795a90e2b mm/swapfile.c: move inode_lock out of claim_swapfile
claim_swapfile() currently keeps the inode locked when it is successful,
or the file is already swapfile (with -EBUSY).  And, on the other error
cases, it does not lock the inode.

This inconsistency of the lock state and return value is quite confusing
and actually causing a bad unlock balance as below in the "bad_swap"
section of __do_sys_swapon().

This commit fixes this issue by moving the inode_lock() and IS_SWAPFILE
check out of claim_swapfile().  The inode is unlocked in
"bad_swap_unlock_inode" section, so that the inode is ensured to be
unlocked at "bad_swap".  Thus, error handling codes after the locking now
jumps to "bad_swap_unlock_inode" instead of "bad_swap".

    =====================================
    WARNING: bad unlock balance detected!
    5.5.0-rc7+ #176 Not tainted
    -------------------------------------
    swapon/4294 is trying to release lock (&sb->s_type->i_mutex_key) at: __do_sys_swapon+0x94b/0x3550
    but there are no more locks to release!

    other info that might help us debug this:
    no locks held by swapon/4294.

    stack backtrace:
    CPU: 5 PID: 4294 Comm: swapon Not tainted 5.5.0-rc7-BTRFS-ZNS+ #176
    Hardware name: ASUS All Series/H87-PRO, BIOS 2102 07/29/2014
    Call Trace:
     dump_stack+0xa1/0xea
     print_unlock_imbalance_bug.cold+0x114/0x123
     lock_release+0x562/0xed0
     up_write+0x2d/0x490
     __do_sys_swapon+0x94b/0x3550
     __x64_sys_swapon+0x54/0x80
     do_syscall_64+0xa4/0x4b0
     entry_SYSCALL_64_after_hwframe+0x49/0xbe
    RIP: 0033:0x7f15da0a0dc7

Fixes: 1638045c36 ("mm: set S_SWAPFILE on blockdev swap devices")
Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Tested-by: Qais Youef <qais.yousef@arm.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: <stable@vger.kernel.org>
Link: http://lkml.kernel.org/r/20200206090132.154869-1-naohiro.aota@wdc.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-03-29 09:47:05 -07:00
Linus Torvalds 83fd69c933 SCSI fixes on 20200328
Two small fixes, one in drivers (qla2xxx) and one in the core (sd) to
 try to cope with USB enclosures that silently change reported
 parameters.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
 -----BEGIN PGP SIGNATURE-----
 
 iJwEABMIAEQWIQTnYEDbdso9F2cI+arnQslM7pishQUCXn9r4CYcamFtZXMuYm90
 dG9tbGV5QGhhbnNlbnBhcnRuZXJzaGlwLmNvbQAKCRDnQslM7pishcRAAQCoW8Q2
 raOl/SkEJ9CrqAsuav4B4HPl+B08wno3lHnp6wEA5Tkiw1aCLjqPBx/k0FctlRaD
 wQIxxBD8dy47cFV/qfo=
 =tWW/
 -----END PGP SIGNATURE-----

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

Pull SCSI fixes from James Bottomley:
 "Two small fixes: one in drivers (qla2xxx), and one in the core (sd) to
  try to cope with USB enclosures that silently change reported
  parameters"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: sd: Fix optimal I/O size for devices that change reported values
  scsi: qla2xxx: Fix I/Os being passed down when FC device is being deleted
2020-03-28 09:14:16 -07:00
Linus Torvalds 69c5eea312 Merge branch 'parisc-5.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
Pull parsic fix from Helge Deller:
 "Fix a recursive loop when running 'make ARCH=parisc defconfig'"

* 'parisc-5.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc: Fix defconfig selection
2020-03-27 14:34:03 -07:00
Linus Torvalds 32db9f10d5 ARM: DT and driver fixes for v5.6
For the devicetree files, there are a total of 20 patches, almost
 entirely for 32-bit machines:
 
 - The Allwinner/sun9i r40 SoC dtsi file contains a number of issues,
   both for correctness and for style that are addressed in separate
   patches. This causes most of the changed lines of the DT updates
   this time.
 
 - More Allwinner updates fixing the identification of the security
   system on sun8i/A33, a recent regression of the A83t ethernet, and a
   few board specific issues on the TBS-A711 macine.
 
 - Several bug fixes for OMAP dts files, most notably fixing the timings
   for the NAND flash on the Nokia N900 that regressed a while ago after
   the move to configuring them from DT.  Some other OMAPs now set the
   correct dma limits on the L3 bus, and a regression fix addresses lost
   Ethernet on dm814x
 
 - One incorrect setting in the newly added Raspberry Pi Zero W that
   may cause issues with the SD card controller.
 
 - A missing property on the bcm2835 firmware node caused incorrect
   DMA settings.
 
 - An old bug on the oxnas platform causing spurious interrupts is
   finally addressed.
 
 - A regression on the Exynos Midas board broke the OLED panel
   power supply.
 
 - The i.MX6 phycore SoM specified the wrong voltage for the SoC,
   this is now set to the values from the datasheet.
 
 - Some 64-bit machines use a deprecated string to identify the PSCI
   firmware.
 
 There are also several small code fixes addressing mostly serious
 issues:
 
 - Fix the sunxi rsb bus access to no longer return incorrect data when
   mixing 8 and 16 bit I/O.
 
 - Fix a suspend/resume regression on the OMAP2+ lcdc from a missing
   quirk in the ti-sysc driver
 
 - Fix a NULL pointer access from a race in the fsl dpio driver
 
 - Fix a v5.5 regression in the exynos-chipid driver that caused an
   invalid error code probing the device on non-exynos platforms
 
 - Fix an out-of-bounds access in the AMD TEE driver
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEo6/YBQwIrVS28WGKmmx57+YAGNkFAl5+LG0ACgkQmmx57+YA
 GNkZhhAAtWTv4sRf2faVzjAngWTs1LXuVpoX8UT2JXOMvY20Y1tQ6YzH8bkJahIr
 oqPsEFOANkDGON+72+7YCFUVuT2rle9xPLUpdCv3F1Q3TAP8jslkvI/7tK21UKnG
 OAsMaJdKeKg4yK+KJnh7OtOBvSJzJ0YUU8BCFs8rsSeTkMdPDz74YbC+jV974SVD
 eCYj/Nih/wt1tG+q/W0tk0LdUtAsgQWbn3WFOrbQ0SSu8i+SVbulBc2oLsltO7VX
 TFhSRimPAhxGcHJcCoD/enNuHGwKWFkGdQ7jGU3138ZP4PUztNMYKVgZmeUAH1m1
 HXlZkpCSIDUjydEAPFJPJMGJumoKvPIf9kwq9f0ceukR8DKWW3suq/gl6C/AJcHE
 K21ofuYftFZ13QXI3khv9SaBKSesEZ1qCVOj4jHNwunAjOc2+sNHdceO4rlD+N5M
 xyIG/U3rO/6VOO7ex32q39x8vCDu2TFi4nxTPQTKIslKj55DgWLayhIyBPiEyo0R
 UMopcoBOrw9LL2AA+ugTHU9CyXW1G3CMsUY/V+i2sZLElsJuVL3kvWaudttXzjei
 O3yV9J8MNTTCPyN981nu+iBAoanqbRP+JZJf0dC2kj+fjB3N9Q8Bziy6XmN3P9Kv
 7qvuSmG5YN3bc3oQKlaUPUWJVqYnsYVEjWh2SqhOmLn5WhK6F5c=
 =31+Z
 -----END PGP SIGNATURE-----

Merge tag 'arm-soc-fixes-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM DT and driver fixes from Arnd Bergmann:
 "For the devicetree files, there are a total of 20 patches, almost
  entirely for 32-bit machines:

   - The Allwinner/sun9i r40 SoC dtsi file contains a number of issues,
     both for correctness and for style that are addressed in separate
     patches. This causes most of the changed lines of the DT updates
     this time.

   - More Allwinner updates fixing the identification of the security
     system on sun8i/A33, a recent regression of the A83t ethernet, and
     a few board specific issues on the TBS-A711 macine.

   - Several bug fixes for OMAP dts files, most notably fixing the
     timings for the NAND flash on the Nokia N900 that regressed a while
     ago after the move to configuring them from DT. Some other OMAPs
     now set the correct dma limits on the L3 bus, and a regression fix
     addresses lost Ethernet on dm814x

   - One incorrect setting in the newly added Raspberry Pi Zero W that
     may cause issues with the SD card controller.

   - A missing property on the bcm2835 firmware node caused incorrect
     DMA settings.

   - An old bug on the oxnas platform causing spurious interrupts is
     finally addressed.

   - A regression on the Exynos Midas board broke the OLED panel power
     supply.

   - The i.MX6 phycore SoM specified the wrong voltage for the SoC, this
     is now set to the values from the datasheet.

   - Some 64-bit machines use a deprecated string to identify the PSCI
     firmware.

  There are also several small code fixes addressing mostly serious
  issues:

   - Fix the sunxi rsb bus access to no longer return incorrect data
     when mixing 8 and 16 bit I/O.

   - Fix a suspend/resume regression on the OMAP2+ lcdc from a missing
     quirk in the ti-sysc driver

   - Fix a NULL pointer access from a race in the fsl dpio driver

   - Fix a v5.5 regression in the exynos-chipid driver that caused an
     invalid error code probing the device on non-exynos platforms

   - Fix an out-of-bounds access in the AMD TEE driver"

* tag 'arm-soc-fixes-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (24 commits)
  soc: samsung: chipid: Fix return value on non-Exynos platforms
  arm64: dts: Fix leftover entry-methods for PSCI
  ARM: dts: exynos: Fix regulator node aliasing on Midas-based boards
  ARM: dts: oxnas: Fix clear-mask property
  ARM: dts: bcm283x: Fix vc4's firmware bus DMA limitations
  ARM: dts: omap5: Add bus_dma_limit for L3 bus
  ARM: dts: omap4-droid4: Fix lost touchscreen interrupts
  ARM: dts: dra7: Add bus_dma_limit for L3 bus
  ARM: bcm2835-rpi-zero-w: Add missing pinctrl name
  ARM: dts: sun8i: a33: add the new SS compatible
  dt-bindings: crypto: add new compatible for A33 SS
  ARM: dts: sun8i: r40: Move SPI device nodes based on address order
  ARM: dts: sun8i: r40: Fix register base address for SPI2 and SPI3
  ARM: dts: sun8i: r40: Move AHCI device node based on address order
  ARM: dts: imx6: phycore-som: fix arm and soc minimum voltage
  soc: fsl: dpio: register dpio irq handlers after dpio create
  tee: amdtee: out of bounds read in find_session()
  ARM: dts: N900: fix onenand timings
  bus: ti-sysc: Fix quirk flags for lcdc on am335x
  ARM: dts: Fix dm814x Ethernet by changing to use rgmii-id mode
  ...
2020-03-27 13:52:32 -07:00
Linus Torvalds 823846c310 Last Minute RISC-V Patches for 5.6
Sorry for the last minute patches, but a few things fell through the cracks
 recently.  I was on the fence about sending a late PR just for the M-mode
 fixes, as we don't really have any users, but the last patch fixes the build
 for Fedora which I consider pretty important.  Given that the M-mode fixes
 should be very low risk, I figured it's worth sending them along as well.
 
 This passes my standard "boot in QEMU" test.
 -----BEGIN PGP SIGNATURE-----
 
 iQJHBAABCgAxFiEEKzw3R0RoQ7JKlDp6LhMZ81+7GIkFAl59ZeUTHHBhbG1lckBk
 YWJiZWx0LmNvbQAKCRAuExnzX7sYiRk7D/9lYDNBOu8SR+eWW+7RSSUHsEX3Ctqq
 Q07RFSPCyjTXise/HINCuycEE10A1Ij1DxH3hRqiiMefQQ23PLNGETYsfF4/ojQj
 6ngq0AlW7UBv0/iVzsUNUYeaMFG1R34ayG3+wbF0h0U3MWTBEBSTzUP+H8Dsh3QU
 jPafwhPIVkweMiXWXf3M1TlpyGTWIH/VckPVB6PZEwe7UEFiVX82pz3hSBztUmwZ
 sT9i/OaRtpLmNw7UHfh/mqok6ILLnfPLeF/+fbBY29yM49AAd1HL2QSiWdshYZ+s
 SxwTqaKSait7WBrKlJBLTA33hNwaASMGe7Tnburmaz6Fy+DgOwskXsCBXOSTzRE6
 LEd7XBc+jGygL5W6QX9Umi585Zr58qp1Ck2Wg3VDp8SjygGoDteHnpdBOOAg588t
 UbGj6Qz/N5g3S3trFa8pYK9nPXNZIrqJQQUMXaRq/c/CX5qY8/i1PyBSlOytRU2o
 /hAZQXN4j0/f3kermvJKX4/6RKX1zCOjclP/IOssobHTMiGwHR49YEAJZfFxHIyw
 AAJ8aKcoI/QOSmugGvCQbf2/lheEOghREFqK5rWn6+IRe5temlzxx3oT09iD5FvH
 Dtdm/ptjl/XTtJGE0EBr60kPLA13puXCRxjzO6BB4WIt6DAQ4HN5oo7yE8myYcBA
 0pMQemyUlDyB4g==
 =ech4
 -----END PGP SIGNATURE-----

Merge tag 'riscv-for-linus-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

Pull RISC-V fixes from Palmer Dabbelt:
 "Sorry for the last minute patches, but a few things fell through the
  cracks recently. I was on the fence about sending a late pull request
  just for the M-mode fixes, as we don't really have any users, but the
  last patch fixes the build for Fedora which I consider pretty
  important.

  Given that the M-mode fixes should be very low risk, I figured it's
  worth sending them along as well.

  Thhis passes my standard 'boot in QEMU' test"

* tag 'riscv-for-linus-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  RISC-V: Move all address space definition macros to one place
  RISC-V: Only select essential drivers for SOC_VIRT config
  riscv: fix the IPI missing issue in nommu mode
  riscv: uaccess should be used in nommu mode
2020-03-27 11:06:10 -07:00
Linus Torvalds bb36d37e29 Devicetree fix for 5.6, take 4:
A single fix for building dtc with GCC 10.
 -----BEGIN PGP SIGNATURE-----
 
 iQJEBAABCgAuFiEEktVUI4SxYhzZyEuo+vtdtY28YcMFAl5+DuwQHHJvYmhAa2Vy
 bmVsLm9yZwAKCRD6+121jbxhwzSBD/9Fot/YLyru3Wzl+sAYzZ8XdBaGnMdC3u7d
 PJcgJ3ozCYclCUU7VATLgxW3y4vPw0zDLyBgGu2EpCL5I0cml8ONbBV6rJq/W5yi
 33gjlc0LmAx7tGNcV/ENFeykV8yTOA+pB1Sxn/f36Gjj8oKLKkhRBmZUGmoFuDlr
 HOIfQp0pnq5V/tc/i6wc+s5WGun1df3EzwNDX9PuLHKMPDPSzF5A4bGfnMqNge03
 gEmbwCMKYsAdlKzf5R4sMXCc1mmWxZvlC7xVzBi3yDc6VZjYoQO3BwnrxKrs/9n0
 IW4WisL0/ACkud8MwLx0Sw82qJqbhRQ+eiRXvDORKk3fxldHBvaGsNk8qVTSDXBI
 C0X5YpMBFGNIzTnRglLqgSh4w9Q36ZSAfbcSrYLOu1FIKUi2l62eS1lUNKZi27NY
 RQkbaown2Uu7U1kVrVtLsNliN6LajQy5cEycoNOntEAakr0WYgxWG7LDx/MIVrAk
 d0C/cf7NfR93CuMV3epzejI2iaaxN/lR8zE/fQlqt/zMaVwVvkyK2TFw09emsT43
 d7jhw57JrOyV8Ci1YWtalj86lJVAJ2ovu2S0ozg6Dma2YqxVAZXrt96MbP+os+ro
 6IhOpSoydb+hrcuP0ZkUk229/EXVmnL7UFIsge/ZOQFKkBBLbQKL/C6rtlQwWBVm
 7+d9WJGxXg==
 =HNrU
 -----END PGP SIGNATURE-----

Merge tag 'devicetree-fixes-for-5.6-4' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull Devicetree fix from Rob Herring:
 "A single fix for building dtc with GCC 10"

* tag 'devicetree-fixes-for-5.6-4' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  scripts/dtc: Remove redundant YYLOC global declaration
2020-03-27 11:02:52 -07:00
Linus Torvalds 1fa8cb0b7b arm64 fix for -rc8/final
- Fix defconfig build when using Clang's integrated assembler
 -----BEGIN PGP SIGNATURE-----
 
 iQFEBAABCgAuFiEEPxTL6PPUbjXGY88ct6xw3ITBYzQFAl592dUQHHdpbGxAa2Vy
 bmVsLm9yZwAKCRC3rHDchMFjNKUFCACQw9B0AHizig0dzL+jAw3fZApcjTWGzmv8
 Blb0BtdYcEYcMvrbNnc21nDAghUw3lt4ncqbjcd6H9+jISN+D5yMTooqBOa6N7eG
 3bGEsap7QsxdqbiFdyPB7woyTa8PR+YSmg9eCtKVX82R2HuPZar69RhDFi1D/iSn
 lbt2ltVTfMTuzEETHoCoixn3r+BFu5HHaFx6JuK6bOT29WpXmdseB8NhkuVE3kEu
 O1nUFW69vGpQvalwYrspd5CSiyT9BuFP9vqz9xYQVCwWLN+O5VuGLoF264SHKVKM
 O4qk18Vu/LG0hU/2V/xBcPQ4CMc9BsR3Z8AyqdfULgBWjqGQf396
 =TROL
 -----END PGP SIGNATURE-----

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

Pull arm64 fix from Will Deacon:
 "Fix defconfig build when using Clang's integrated assembler"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: alternative: fix build with clang integrated assembler
2020-03-27 10:50:31 -07:00
Linus Torvalds 527630fbf4 A handful of clk driver fixes. Mostly they're around the i.MX drivers
fixing the parents of a few clks and making KASAN happy with how the
 message passing code works. Besides that we have a TI driver fix for the
 RTC parent and a fix for the basic gate type registration functions
 introduced this release where they didn't actually pass the arguments in
 the right places to the multiplexer function down below.
 -----BEGIN PGP SIGNATURE-----
 
 iQJFBAABCAAvFiEE9L57QeeUxqYDyoaDrQKIl8bklSUFAl59wR4RHHNib3lkQGtl
 cm5lbC5vcmcACgkQrQKIl8bklSXDRRAAthZy4CKWP2q601hxv8gKg+CrFQrs0+0F
 Ezr9wsW4R7nYgPpKKLJMbGWWXEDM/y3mn8oqBB8CHCeaPGDhE0Op/1+uUqmc4pG6
 yeqpJ9TOdV7UZlQi5fjFAhtgdI4y5ES9lcl04yaDT2Wy4vehJErSZw5+0/QH94yf
 FJwkIyd1hqIsvuouEkz1e1wSunscmcvq4vvUnVGlabHlZJHCRQNrv2zA62sJ2tvb
 0K5luorl0lLoeXlhHAh8MoljDS6Q0us9entHZeQmj05sLkjRPMV06KZDVlZRytej
 2YK/xH9YD8ELVcwrlB3A+z0f/05nvlkg9PxCAKmJKXs1ErE4b+3JRESAEtjDNyYe
 knWkLcmegs+ifx2a1+0DUusLn0eYckbss1c+nV+BYupRCjCS7GRGhmW2jVv+hP/X
 gxYtVjcULkURbitMCQ0DQiS2wKrk8c1Q8GE/x2pbAWkaYdhSf2mr7irDX903LEmg
 mCO9E7RW6KFBA+ev/soTLEYLYLtUoIKH9Yq86SUJujlhq8aoIciQu3r4antcC4R2
 FaUhooLExvkgQX1BgH46BNPK2MNckUmxRcy9eVyr7vO9dRuP+83cVitGzN1jZz+L
 /lUFY52R39zwPZ+VzscBMXzrlvNwrdbkEJ1ABbz165JPv0biu9RD0DWm5XLR6udP
 K/ow9Ox/47g=
 =adIQ
 -----END PGP SIGNATURE-----

Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk fixes from Stephen Boyd:
 "A handful of clk driver fixes.

  Mostly they're around the i.MX drivers fixing the parents of a few
  clks and making KASAN happy with how the message passing code works.

  Besides that we have a TI driver fix for the RTC parent and a fix for
  the basic gate type registration functions introduced this release
  where they didn't actually pass the arguments in the right places to
  the multiplexer function down below"

* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
  clk: imx: Align imx sc clock parent msg structs to 4
  clk: imx: Align imx sc clock msg structs to 4
  clk: Pass correct arguments to __clk_hw_register_gate()
  clk: ti: am43xx: Fix clock parent for RTC clock
  clk: imx8mp: Correct the enet_qos parent clock
  clk: imx8mp: Correct IMX8MP_CLK_HDMI_AXI clock parent
2020-03-27 09:33:48 -07:00
Linus Torvalds 7bf8df68cb drm fixes for 5.6-rc8/final
radeon/amdgpu/dma-buf:
 - sg list fixes
 
 scheduler:
 - oops fix
 -----BEGIN PGP SIGNATURE-----
 
 iQIcBAABAgAGBQJefaN4AAoJEAx081l5xIa+eakQAJYLuWSybs1/FwUybqnuv1BF
 c9EiMf1XPt78wTM5hVI/7xv/0ZUW++p3FkioSKUxYWejDcZCZ16gVUw2Byh/eBWl
 OIcVgjDZTO7z14/fgApqYjWrmmftwfg59LOvc44pZXNHyTIgJMCEbidTQy5dj7xW
 NqWXXOokhgZPYZI2fAlkk9PVkSc9QaJTJCiWh8lSR4smQRHjF5uiiwwvYY3h33Nk
 5hpH95kgHU6npke1t0EXrGdJtq1tdwDeqUoGkWNwWxQ405mPyBan7zC4zzSKJjbH
 UKO+TaFJQQ2ycXTmgVx2KRpIOQa6g2vBYKVs98EylgO32P443D8nIUI4foDO7GY2
 31rwK7GZfHTLWCOfFMNM4V+8dEwZJZYpbLOIc/4+zaufzBLwntLDZM/O9Dky9UU4
 ZQKfFU4Q16Cy8ceVVdFmBn8fv+/Zn6wFewT4qXDtsuekjnD+HCCP7p5dxIGOBn89
 SOoEH8b77TqnGEqJxf/XTeXIMvd2O3ZLeszMQyI4v/2YQzH+DkFY6OUchP6YwaCv
 9/93T/e0sq7a6C18B9x70sTfAeGuza3R1BYd1RoCyDdn2H103i7Fm/E8Pu0JXOep
 4GxU8GpGvaP2akZsB5WIcVz6ADaDPGtZvL/uooCans+LixgQMaGAAWgF97DWMjd7
 B+g7bFio8qYqD+BIp6Sy
 =ukHW
 -----END PGP SIGNATURE-----

Merge tag 'drm-fixes-2020-03-27' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "Pretty quiet: some minor sg mapping fixes for 3 drivers, and a single
  oops fix for the scheduler. I'm hoping nobody tries to send me a fixes
  pull today but I'll keep an eye out of the weekend.

  radeon/amdgpu/dma-buf:
   - sg list fixes

  scheduler:
   - oops fix"

* tag 'drm-fixes-2020-03-27' of git://anongit.freedesktop.org/drm/drm:
  drm/scheduler: fix rare NULL ptr race
  drm/radeon: fix scatter-gather mapping with user pages
  drm/amdgpu: fix scatter-gather mapping with user pages
  drm/prime: use dma length macro when mapping sg
2020-03-27 09:21:52 -07:00
Helge Deller ededa081ed parisc: Fix defconfig selection
Fix the recursive loop when running "make ARCH=parisc defconfig".

Fixes: 84669923e1 ("parisc: Regenerate parisc defconfigs")
Noticed-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Helge Deller <deller@gmx.de>
2020-03-27 15:37:24 +01:00
Dirk Mueller e33a814e77 scripts/dtc: Remove redundant YYLOC global declaration
gcc 10 will default to -fno-common, which causes this error at link
time:

  (.text+0x0): multiple definition of `yylloc'; dtc-lexer.lex.o (symbol from plugin):(.text+0x0): first defined here

This is because both dtc-lexer as well as dtc-parser define the same
global symbol yyloc. Before with -fcommon those were merged into one
defintion. The proper solution would be to to mark this as "extern",
however that leads to:

  dtc-lexer.l:26:16: error: redundant redeclaration of 'yylloc' [-Werror=redundant-decls]
   26 | extern YYLTYPE yylloc;
      |                ^~~~~~
In file included from dtc-lexer.l:24:
dtc-parser.tab.h:127:16: note: previous declaration of 'yylloc' was here
  127 | extern YYLTYPE yylloc;
      |                ^~~~~~
cc1: all warnings being treated as errors

which means the declaration is completely redundant and can just be
dropped.

Signed-off-by: Dirk Mueller <dmueller@suse.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
[robh: cherry-pick from upstream]
Cc: stable@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
2020-03-27 08:31:13 -06:00
Linus Torvalds f3e69428b5 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input fixes from Dmitry Torokhov:

 - a fix to generate proper timestamps on key autorepeat events that
   were broken recently

 - a fix for Synaptics driver to only activate reduced reporting mode
   when explicitly requested

 - a new keycode for "selective screenshot" function

 - other assorted fixes

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: fix stale timestamp on key autorepeat events
  Input: move the new KEY_SELECTIVE_SCREENSHOT keycode
  Input: avoid BIT() macro usage in the serio.h UAPI header
  Input: synaptics-rmi4 - set reduced reporting mode only when requested
  Input: synaptics - enable RMI on HP Envy 13-ad105ng
  Input: allocate keycode for "Selective Screenshot" key
  Input: tm2-touchkey - add support for Coreriver TC360 variant
  dt-bindings: input: add Coreriver TC360 binding
  dt-bindings: vendor-prefixes: Add Coreriver vendor prefix
  Input: raydium_i2c_ts - fix error codes in raydium_i2c_boot_trigger()
2020-03-26 20:49:44 -07:00
Dave Airlie c4b979ebca Merge tag 'amd-drm-fixes-5.6-2020-03-26' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
amd-drm-fixes-5.6-2020-03-26:

Scheduler:
- Fix a race condition that could result in a segfault

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200326144538.3937-1-alexander.deucher@amd.com
2020-03-27 13:03:17 +10:00
Dave Airlie 5117c363eb drm-misc-fixes for v5.6:
- SG fixes for prime, radeon and amdgpu.
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEuXvWqAysSYEJGuVH/lWMcqZwE8MFAl58tmgACgkQ/lWMcqZw
 E8NIyBAAoKOKyKwTgzTF+AQvkFsAkRcE5wi7lrJTdbS26susSTstDFOmouHcgfdi
 gxRHwq2BHUfPDV2qUTp9v5dkQDvH9ZrDVaeuT0vK9f9PT+5EEpiO4mlmpq5o2CpH
 5Pn1NAd58vP0BZmLl9MOrJQMKRC7Y7rSAaNXjQu9KfWV1CtqPu/OBm2cbRZC/7Rs
 nRcWRV2H+MSPzzSeGCA8MpcPvQiVEGtGjm3TFtH5Q4EFuE0ILIvf/cqWGLtiIkh2
 QRyE/+bLokuzZc2XerQPf5zxQDCqXc1NPCWXwlAKUUkcIDF3lQ5ewxW6MZ8AExqx
 Sn84+5z/BMlIqjHptODeZaWXLXgUnt7G0iE5aKVlQ14yKgJOejtq2N05XmzhEcLS
 H5WiLW9qIdCKH7C8joZFtb6LAPEq48ubJgYO77G02JSYO/UnB7qBnxTgyEL4Sl2O
 OskTdFTNG4ayVCJkFEgZpU0Xb41H/wIwB1HPcD0QSkHPGmGamIBoy7IoEpfmyWZF
 vN/Ucw0INJMORzr+/sqNSHPnzNhT1MRorVdWMgk/5zcUWn/KD+pQfQrE72UXQtAy
 +Q84lkjhCTGOAVINZGbuC3CkfTdNqqrHTM+IqHBGU6oZ75HUb0N4VfeLQeESBoK6
 kFEQYtB6EL6GMt7d6Pj+qTFXShh1pdWDIqKW2Kswz5nTGqwWgFo=
 =wtId
 -----END PGP SIGNATURE-----

Merge tag 'drm-misc-fixes-2020-03-26' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

drm-misc-fixes for v5.6:
- SG fixes for prime, radeon and amdgpu.

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ef10e822-76dd-125d-ec1f-9a78c5f76bc3@linux.intel.com
2020-03-27 12:33:23 +10:00
Atish Patra 2191b4f298
RISC-V: Move all address space definition macros to one place
We get the following compilation error if CONFIG_SPARSEMEM_VMEMMAP is set.

---------------------------------------------------------------
./arch/riscv/include/asm/pgtable-64.h: In function ‘pud_page’:
./include/asm-generic/memory_model.h:54:29: error: ‘vmemmap’ undeclared
(first use in this function); did you mean ‘mem_map’?
 #define __pfn_to_page(pfn) (vmemmap + (pfn))
                             ^~~~~~~
./include/asm-generic/memory_model.h:82:21: note: in expansion of
macro ‘__pfn_to_page’

 #define pfn_to_page __pfn_to_page
                     ^~~~~~~~~~~~~
./arch/riscv/include/asm/pgtable-64.h:70:9: note: in expansion of macro
‘pfn_to_page’
  return pfn_to_page(pud_val(pud) >> _PAGE_PFN_SHIFT);
---------------------------------------------------------------

Fix the compliation errors by moving all the address space definition
macros before including pgtable-64.h.

Fixes: 8ad8b72721 (riscv: Add KASAN support)

Signed-off-by: Atish Patra <atish.patra@wdc.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-03-26 19:26:11 -07:00
Dmitry Torokhov 4134252ab7 Input: fix stale timestamp on key autorepeat events
We need to refresh timestamp when emitting key autorepeat events, otherwise
they will carry timestamp of the original key press event.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=206929
Fixes: 3b51c44bd6 ("Input: allow drivers specify timestamp for input events")
Cc: stable@vger.kernel.org
Reported-by: teika kazura <teika@gmx.com>
Tested-by: teika kazura <teika@gmx.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-03-26 17:05:08 -07:00
David Howells 9efcc4a129 afs: Fix unpinned address list during probing
When it's probing all of a fileserver's interfaces to find which one is
best to use, afs_do_probe_fileserver() takes a lock on the server record
and notes the pointer to the address list.

It doesn't, however, pin the address list, so as soon as it drops the
lock, there's nothing to stop the address list from being freed under
us.

Fix this by taking a ref on the address list inside the locked section
and dropping it at the end of the function.

Fixes: 3bf0fb6f33 ("afs: Probe multiple fileservers simultaneously")
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Marc Dionne <marc.dionne@auristor.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-03-26 16:04:29 -07:00
Linus Torvalds 60268940cd A patch for a rather old regression in fullness handling and two memory
leak fixes, marked for stable.
 -----BEGIN PGP SIGNATURE-----
 
 iQFHBAABCAAxFiEEydHwtzie9C7TfviiSn/eOAIR84sFAl59DCwTHGlkcnlvbW92
 QGdtYWlsLmNvbQAKCRBKf944AhHzi5oGB/943a7gIBV52PD3MGCnI8RWjgHkk3d0
 en2JNI6i7hf7GD7GplMGkc0D8INBJhCZo1mwzX36QXYA3BeXKARkNXvEE+AZ4dX5
 XbUiPE5WuUwxcT9sE9rTiCurx1ToN/XUlA27Vbt9J67U08w5BjJ3utO1LuW7z2ME
 NPx6aw6tdwIEeNJBo4ge8y9vPKevtXqhkCbzSb2kn+tMhoMPuJ3RIj8kWIF7mYWZ
 ofwOFoDnOfQuH+9ZA/mT4jL7ifR0am5QptHSD9kxge2mKlc0pmoABZK6sWNPOslg
 jQaEiefH77K/IxRyAsQNM7iHbUzKpZGbqAHx92MU0redUjUWNdCDGUmF
 =c01Y
 -----END PGP SIGNATURE-----

Merge tag 'ceph-for-5.6-rc8' of git://github.com/ceph/ceph-client

Pull ceph fixes from Ilya Dryomov:
 "A patch for a rather old regression in fullness handling and two
  memory leak fixes, marked for stable"

* tag 'ceph-for-5.6-rc8' of git://github.com/ceph/ceph-client:
  ceph: fix memory leak in ceph_cleanup_snapid_map()
  libceph: fix alloc_msg_with_page_vector() memory leaks
  ceph: check POOL_FLAG_FULL/NEARFULL in addition to OSDMAP_FULL/NEARFULL
2020-03-26 15:44:41 -07:00
Linus Torvalds a53071bd34 x86 bug fixes.
-----BEGIN PGP SIGNATURE-----
 
 iQFIBAABCAAyFiEE8TM4V0tmI4mGbHaCv/vSX3jHroMFAl58ewEUHHBib256aW5p
 QHJlZGhhdC5jb20ACgkQv/vSX3jHroMpagf/Ya2j9EGWMv+0BSvV9POYjbMmxfOe
 HdNld2zlaNreAvgHQvdW76AufIa+VnJqJEgI2wjN7exmC+HjqtF/uC9l5B3ZK5BR
 WKK/t9ZynXhBSmrddLI477nufsv8c34lELgLObKMECGrzsGdx8T4tEg7q9GjlZBY
 umDVc6kx0GEblzAIzX9Z8l8deFXeykTghMM+mSnHNDLd3a2L6hHoT4atDj5VcqQ/
 PxpOV+uZhOliOgTaUmuvlQQUJ/CjJO2lsMoItGzUtKb6gTKKc0U/5kuGxXe7phB+
 Ttz9Svs2oLBrKcr59R5UfI7ovGqPCaXgQ4cRPwBgIQ4lS/LR4s5ltODywA==
 =wIQr
 -----END PGP SIGNATURE-----

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

Pull KVM fixes from Paolo Bonzini:
 "x86 bug fixes"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: X86: Narrow down the IPI fastpath to single target IPI
  KVM: LAPIC: Also cancel preemption timer when disarm LAPIC timer
  KVM: VMX: don't allow memory operands for inline asm that modifies SP
  KVM: LAPIC: Mark hrtimer for period or oneshot mode to expire in hard interrupt context
  KVM: SVM: Issue WBINVD after deactivating an SEV guest
  KVM: SVM: document KVM_MEM_ENCRYPT_OP, let userspace detect if SEV is available
  KVM: x86: remove bogus user-triggerable WARN_ON
2020-03-26 15:30:49 -07:00
Linus Torvalds 23cb8490c0 MAINTAINERS: fix bad file pattern
Testing 'parse-maintainers' due to the previous commit shows a bad file
pattern for the "TI VPE/CAL DRIVERS" entry in the MAINTAINERS file.

There's also a lot of mis-ordered entries, but I'm still a bit nervous
about the inevitable and annoying merge problems it would probably cause
to fix them up.

The MAINTAINERS file is one of my least favorite files due to being huge
and centralized, but fixing it is also horribly painful for that reason.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-03-26 15:12:19 -07:00
Joe Perches 5cdbec108f parse-maintainers: Do not sort section content by default
Add an --order switch to control section reordering.
Default for --order is off.

Change the default ordering to a slightly more sensible:

M:  Person acting as a maintainer
R:  Person acting as a patch reviewer
L:  Mailing list where patches should be sent
S:  Maintenance status
W:  URI for general information
Q:  URI for patchwork tracking
B:  URI for bug tracking/submission
C:  URI for chat
P:  URI or file for subsystem specific coding styles
T:  SCM tree type and location
F:  File and directory pattern
X:  File and directory exclusion pattern
N:  File glob
K:  Keyword - patch content regex

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-03-26 15:08:27 -07:00
Dmitry Torokhov fbf66796a0 Input: move the new KEY_SELECTIVE_SCREENSHOT keycode
We should try to keep keycodes sequential unless there is a reason to leave
a gap in numbering, so let's move it from 0x280 to 0x27a while we still
can.

Fixes: 3b059da983 ("Input: allocate keycode for Selective Screenshot key")
Acked-by: Rajat Jain <rajatja@google.com>
Link: https://lore.kernel.org/r/20200326182711.GA259753@dtor-ws
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-03-26 12:55:17 -07:00
Anup Patel bd6f20333c
RISC-V: Only select essential drivers for SOC_VIRT config
The kconfig select causes build failues for SOC_VIRT config becaus
we are selecting lot of VIRTIO drivers without selecting all required
dependencies.

Better approach is to only select essential drivers from SOC_VIRT
config option and enable required VIRTIO drivers using defconfigs.

Fixes: 759bdc1681 ("RISC-V: Add kconfig option for QEMU virt machine")
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-03-26 12:35:04 -07:00
Linus Torvalds 9420e8ade4 Third RDMA 5.6 pull request
- Several MAINTAINERS updates
 
 - Memory leak regression in ODP
 
 - Several fixes for syzkaller related crashes. Google recently taught
   syzkaller to create the software RDMA devices
 
 - Crash fixes for HFI1
 
 - Several fixes for mlx5 crashes
 
 - Prevent unprivileged access to an unsafe mlx5 HW resource
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEfB7FMLh+8QxL+6i3OG33FX4gmxoFAl57oakACgkQOG33FX4g
 mxqLQBAAgjBxExYAK51ImMoCOXlZ9uInoACes8+e1HjIJUPhS3/WVubCMXJxAYrc
 x7xtW7DUVBjNBYdQajgzWsDRrENovTq4rPscIWVSqTffWkYYubJbGXeBKTa045J6
 3rsKL5Kzd0XGN0/XrXjctXpADEvEb1mjUjEMvsVmggIHneLJ5JgUdRTISwlsntmD
 BbFo67DsSmQqOCx5B1az3l/RYPuWeFEYgQOAcWUC/rzsFEvEkmdqDr6FcbtkTWe1
 pSqSTVQ6knDTvadwjwbpJRJg9SR/X4cHtGLOy1sP8HQ6Do671cAtFrusLb4Zf+w6
 ncOll8/YPjiTe9fkTCX4Gdhn278t8cZAn2W9vrzPF8lv8tGRtlO5nXdR044NmBst
 CBid7JaxzGVq0QhEEiWpV72Q8O7wQ5mARHR2x/zR2A/fdD+lqN1rjfDAqldrgYWV
 5D+IFRwwwp9J+Y1pQAmTkzixItraRLD6jjzYG+qk5zopUnHBJBk67wZpWcS1zlER
 SJuG0ztYn5KBSjoTGzOXfPIXpe+N3UhWxHx5P17G7UhRjbLE6oaij3TY7et/Bfj/
 7esEQCLDyzEQdXJHNojyUKuyUU88N1yAC9gQbgHWPrrJBa/Ibxukq5O8dwDBpX8g
 zOtSrv9i9r8g7RrKccxy0BUkrq+0OSttSopE+ssnRFTiVX3sMX0=
 =RhVe
 -----END PGP SIGNATURE-----

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

Pull rdma fixes from Jason Gunthorpe:
 "A small set of late-rc patches, mostly fixes for various crashers,
  some syzkaller fixes and a mlx5 HW limitation:

   - Several MAINTAINERS updates

   - Memory leak regression in ODP

   - Several fixes for syzkaller related crashes. Google recently taught
     syzkaller to create the software RDMA devices

   - Crash fixes for HFI1

   - Several fixes for mlx5 crashes

   - Prevent unprivileged access to an unsafe mlx5 HW resource"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
  RDMA/mlx5: Block delay drop to unprivileged users
  RDMA/mlx5: Fix access to wrong pointer while performing flush due to error
  RDMA/core: Ensure security pkey modify is not lost
  MAINTAINERS: Clean RXE section and add Zhu as RXE maintainer
  IB/hfi1: Ensure pq is not left on waitlist
  IB/rdmavt: Free kernel completion queue when done
  RDMA/mad: Do not crash if the rdma device does not have a umad interface
  RDMA/core: Fix missing error check on dev_set_name()
  RDMA/nl: Do not permit empty devices names during RDMA_NLDEV_CMD_NEWLINK/SET
  RDMA/mlx5: Fix the number of hwcounters of a dynamic counter
  MAINTAINERS: Update maintainers for HISILICON ROCE DRIVER
  RDMA/odp: Fix leaking the tgid for implicit ODP
2020-03-26 10:39:36 -07:00
Yintian Tao 3c0fdf3302 drm/scheduler: fix rare NULL ptr race
There is one one corner case at dma_fence_signal_locked
which will raise the NULL pointer problem just like below.
->dma_fence_signal
    ->dma_fence_signal_locked
	->test_and_set_bit
here trigger dma_fence_release happen due to the zero of fence refcount.

->dma_fence_put
    ->dma_fence_release
	->drm_sched_fence_release_scheduled
	    ->call_rcu
here make the union fled “cb_list” at finished fence
to NULL because struct rcu_head contains two pointer
which is same as struct list_head cb_list

Therefore, to hold the reference of finished fence at drm_sched_process_job
to prevent the null pointer during finished fence dma_fence_signal

[  732.912867] BUG: kernel NULL pointer dereference, address: 0000000000000008
[  732.914815] #PF: supervisor write access in kernel mode
[  732.915731] #PF: error_code(0x0002) - not-present page
[  732.916621] PGD 0 P4D 0
[  732.917072] Oops: 0002 [#1] SMP PTI
[  732.917682] CPU: 7 PID: 0 Comm: swapper/7 Tainted: G           OE     5.4.0-rc7 #1
[  732.918980] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.8.2-0-g33fbe13 by qemu-project.org 04/01/2014
[  732.920906] RIP: 0010:dma_fence_signal_locked+0x3e/0x100
[  732.938569] Call Trace:
[  732.939003]  <IRQ>
[  732.939364]  dma_fence_signal+0x29/0x50
[  732.940036]  drm_sched_fence_finished+0x12/0x20 [gpu_sched]
[  732.940996]  drm_sched_process_job+0x34/0xa0 [gpu_sched]
[  732.941910]  dma_fence_signal_locked+0x85/0x100
[  732.942692]  dma_fence_signal+0x29/0x50
[  732.943457]  amdgpu_fence_process+0x99/0x120 [amdgpu]
[  732.944393]  sdma_v4_0_process_trap_irq+0x81/0xa0 [amdgpu]

v2: hold the finished fence at drm_sched_process_job instead of
    amdgpu_fence_process
v3: resume the blank line

Signed-off-by: Yintian Tao <yttao@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-03-26 10:22:36 -04:00
Wanpeng Li e1be9ac8e6 KVM: X86: Narrow down the IPI fastpath to single target IPI
The original single target IPI fastpath patch forgot to filter the
ICR destination shorthand field. Multicast IPI is not suitable for
this feature since wakeup the multiple sleeping vCPUs will extend
the interrupt disabled time, it especially worse in the over-subscribe
and VM has a little bit more vCPUs scenario. Let's narrow it down to
single target IPI.

Two VMs, each is 76 vCPUs, one running 'ebizzy -M', the other
running cyclictest on all vCPUs, w/ this patch, the avg score
of cyclictest can improve more than 5%. (pv tlb, pv ipi, pv
sched yield are disabled during testing to avoid the disturb).

Signed-off-by: Wanpeng Li <wanpengli@tencent.com>
Message-Id: <1585189202-1708-3-git-send-email-wanpengli@tencent.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-03-26 05:44:21 -04:00
Leonard Crestez 8400ab8896 clk: imx: Align imx sc clock parent msg structs to 4
The imx SC api strongly assumes that messages are composed out of
4-bytes words but some of our message structs have odd sizeofs.

This produces many oopses with CONFIG_KASAN=y.

Fix by marking with __aligned(4).

Fixes: 666aed2d13 ("clk: imx: scu: add set parent support")
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Link: https://lkml.kernel.org/r/aad021e432b3062c142973d09b766656eec18fde.1582216144.git.leonard.crestez@nxp.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-03-25 18:46:05 -07:00
Leonard Crestez a0ae04a256 clk: imx: Align imx sc clock msg structs to 4
The imx SC api strongly assumes that messages are composed out of
4-bytes words but some of our message structs have odd sizeofs.

This produces many oopses with CONFIG_KASAN=y.

Fix by marking with __aligned(4).

Fixes: fe37b48204 ("clk: imx: add scu clock common part")
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Link: https://lkml.kernel.org/r/10e97a04980d933b2cfecb6b124bf9046b6e4f16.1582216144.git.leonard.crestez@nxp.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-03-25 18:45:59 -07:00
Stephen Boyd 4e93430120 clk: Pass correct arguments to __clk_hw_register_gate()
I copy/pasted these macros and forgot to update the argument
names and where they're passed to. Fix it so that these macros make
sense.

Reported-by: Maxime Ripard <maxime@cerno.tech>
Fixes: 194efb6e26 ("clk: gate: Add support for specifying parents via DT/pointers")
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lkml.kernel.org/r/20200325022257.148244-1-sboyd@kernel.org
Tested-by: Maxime Ripard <mripard@kernel.org>
2020-03-25 17:38:23 -07:00
Linus Torvalds 1b649e0bca Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from David Miller:

 1) Fix deadlock in bpf_send_signal() from Yonghong Song.

 2) Fix off by one in kTLS offload of mlx5, from Tariq Toukan.

 3) Add missing locking in iwlwifi mvm code, from Avraham Stern.

 4) Fix MSG_WAITALL handling in rxrpc, from David Howells.

 5) Need to hold RTNL mutex in tcindex_partial_destroy_work(), from Cong
    Wang.

 6) Fix producer race condition in AF_PACKET, from Willem de Bruijn.

 7) cls_route removes the wrong filter during change operations, from
    Cong Wang.

 8) Reject unrecognized request flags in ethtool netlink code, from
    Michal Kubecek.

 9) Need to keep MAC in reset until PHY is up in bcmgenet driver, from
    Doug Berger.

10) Don't leak ct zone template in act_ct during replace, from Paul
    Blakey.

11) Fix flushing of offloaded netfilter flowtable flows, also from Paul
    Blakey.

12) Fix throughput drop during tx backpressure in cxgb4, from Rahul
    Lakkireddy.

13) Don't let a non-NULL skb->dev leave the TCP stack, from Eric
    Dumazet.

14) TCP_QUEUE_SEQ socket option has to update tp->copied_seq as well,
    also from Eric Dumazet.

15) Restrict macsec to ethernet devices, from Willem de Bruijn.

16) Fix reference leak in some ethtool *_SET handlers, from Michal
    Kubecek.

17) Fix accidental disabling of MSI for some r8169 chips, from Heiner
    Kallweit.

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (138 commits)
  net: Fix CONFIG_NET_CLS_ACT=n and CONFIG_NFT_FWD_NETDEV={y, m} build
  net: ena: Add PCI shutdown handler to allow safe kexec
  selftests/net/forwarding: define libs as TEST_PROGS_EXTENDED
  selftests/net: add missing tests to Makefile
  r8169: re-enable MSI on RTL8168c
  net: phy: mdio-bcm-unimac: Fix clock handling
  cxgb4/ptp: pass the sign of offset delta in FW CMD
  net: dsa: tag_8021q: replace dsa_8021q_remove_header with __skb_vlan_pop
  net: cbs: Fix software cbs to consider packet sending time
  net/mlx5e: Do not recover from a non-fatal syndrome
  net/mlx5e: Fix ICOSQ recovery flow with Striding RQ
  net/mlx5e: Fix missing reset of SW metadata in Striding RQ reset
  net/mlx5e: Enhance ICOSQ WQE info fields
  net/mlx5_core: Set IB capability mask1 to fix ib_srpt connection failure
  selftests: netfilter: add nfqueue test case
  netfilter: nft_fwd_netdev: allow to redirect to ifb via ingress
  netfilter: nft_fwd_netdev: validate family and chain type
  netfilter: nft_set_rbtree: Detect partial overlaps on insertion
  netfilter: nft_set_rbtree: Introduce and use nft_rbtree_interval_start()
  netfilter: nft_set_pipapo: Separate partial and complete overlap cases on insertion
  ...
2020-03-25 13:58:05 -07:00
Linus Torvalds 1dfb642b10 GPIO fixes for the v5.6 series:
- One core quirk by myself to fix the .irq_disable()
   semantics when the gpiolib core takes over this callback.
 
 - The rest is an elaborate series of 4 patches fixing Intel
   laptop ACPI wakeup quirks.
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEElDRnuGcz/wPCXQWMQRCzN7AZXXMFAl57qSIACgkQQRCzN7AZ
 XXMmqxAAiggbsjiMkufxHxDqKl0tLRkbQwlsnz5VQlH0XCPBYSRidbIfQdiDFTbD
 yoBENIYeW/9aVlb0Q7a2T5H4zy1Ye3MiqObZt97ECr7DyxwNrAbPS/IgOFmsjSmu
 C4HZgX6/fQpBlJnKVgMBwzdgKShX4Fb4l1gFnY7uRRjBGVkp5ZArqJALJ747zFR0
 yj/kpA+hGgO24AJspF+QaLFfKkjMXKv2zgaa3HEtsYqUBH/3yBZigLKJs3koXHYB
 3c7EbWxnpYLiPi/T51aN7ZbbNX7Ag6wW6rLm/6460MCYDRSOB+7fCJCZc2KZJomr
 4ntq1HHxSrjOiqce+MSvc+WLI6pqjN73tyWJwhFgBfwr32Ara5FR6CO0KJT9M5d+
 0i8Na0Dyp2LlZM530ygOOn48p+tiU6NVoR/BXUnXBBuYtFsOmfTtrQGh++Uw+rcJ
 wraFAsSzzr7JmXzh+tUEeGGdI4EYy1T6+DppEfSbyty9W6YnWvqHP9xcyuicUyi2
 g9Btl0hRhSqQZozDYjROPQox1qjUKHLnI66n/W9pVUN61GlFlSH/38yRAEpD0DZW
 GlzSEkfL5SN5DQjaAOC2z0z+kfFSGdtCYMOKkyl+cKGbLCRc43PrzHB3oH+wF1Mu
 0J+Hilrk9y4sGTX67jIQPV/t1qhoorRFzihuUkHBdGt//XCqtI4=
 =+dEG
 -----END PGP SIGNATURE-----

Merge tag 'gpio-v5.6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

Pull GPIO fixes from Linus Walleij:

 - One core quirk by myself to fix the .irq_disable() semantics when the
   gpiolib core takes over this callback.

 - The rest is an elaborate series of four patches fixing Intel laptop
   ACPI wakeup quirks.

* tag 'gpio-v5.6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
  gpiolib: acpi: Add quirk to ignore EC wakeups on HP x2 10 CHT + AXP288 model
  gpiolib: acpi: Add quirk to ignore EC wakeups on HP x2 10 BYT + AXP288 model
  gpiolib: acpi: Rework honor_wakeup option into an ignore_wake option
  gpiolib: acpi: Correct comment for HP x2 10 honor_wakeup quirk
  gpiolib: Fix irq_disable() semantics
2020-03-25 13:52:36 -07:00
David S. Miller 2910594fd3 wireless-drivers fixes for v5.6
Fourth, and last, set of fixes for v5.6. Just two important fixes to
 iwlwifi regressions.
 
 iwlwifi
 
 * fix GEO_TX_POWER_LIMIT command on certain devices which caused
   firmware to crash during initialisation
 
 * add back device ids for three devices which were accidentally
   removed
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQEcBAABAgAGBQJee7S6AAoJEG4XJFUm622bcH4IAICV95Y79p9loKZVwXBrguiK
 5D9rBNZcSc0Yo9AwZkhatRAJYiLu19hw2qra3YsQnaWpjESmnZtV6/ZASDcpOGSP
 NaI4TMLt57dhnpqhpglvGeM9PlUbaoqX7Sl5LbhnSQoKkk7rppnk90KqbXl7SDba
 4eG7+i4iMc69uw4BttVh/lfgAH0YyYpgStWi9ccoQ2ip9SrljFZwmCF7q+3/25OR
 Hyty44U90BBrsi+LrRuhutR2LuR+TfXEWmtXWRzOpnwmicY8sCpeEVCMeeVy59TR
 y66sjlhM5w+N1mZbzBrqUZJLdMGInljx4G4DIvvi8jbD6rVLZc8zAeZMLjO24ZM=
 =CFbE
 -----END PGP SIGNATURE-----

Merge tag 'wireless-drivers-2020-03-25' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers

Kalle Valo says:

====================
wireless-drivers fixes for v5.6

Fourth, and last, set of fixes for v5.6. Just two important fixes to
iwlwifi regressions.

iwlwifi

* fix GEO_TX_POWER_LIMIT command on certain devices which caused
  firmware to crash during initialisation

* add back device ids for three devices which were accidentally
  removed
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-25 13:12:26 -07:00
Pablo Neira Ayuso 2c64605b59 net: Fix CONFIG_NET_CLS_ACT=n and CONFIG_NFT_FWD_NETDEV={y, m} build
net/netfilter/nft_fwd_netdev.c: In function ‘nft_fwd_netdev_eval’:
    net/netfilter/nft_fwd_netdev.c:32:10: error: ‘struct sk_buff’ has no member named ‘tc_redirected’
      pkt->skb->tc_redirected = 1;
              ^~
    net/netfilter/nft_fwd_netdev.c:33:10: error: ‘struct sk_buff’ has no member named ‘tc_from_ingress’
      pkt->skb->tc_from_ingress = 1;
              ^~

To avoid a direct dependency with tc actions from netfilter, wrap the
redirect bits around CONFIG_NET_REDIRECT and move helpers to
include/linux/skbuff.h. Turn on this toggle from the ifb driver, the
only existing client of these bits in the tree.

This patch adds skb_set_redirected() that sets on the redirected bit
on the skbuff, it specifies if the packet was redirect from ingress
and resets the timestamp (timestamp reset was originally missing in the
netfilter bugfix).

Fixes: bcfabee1af ("netfilter: nft_fwd_netdev: allow to redirect to ifb via ingress")
Reported-by: noreply@ellerman.id.au
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-25 12:24:33 -07:00
Guilherme G. Piccoli 428c491332 net: ena: Add PCI shutdown handler to allow safe kexec
Currently ENA only provides the PCI remove() handler, used during rmmod
for example. This is not called on shutdown/kexec path; we are potentially
creating a failure scenario on kexec:

(a) Kexec is triggered, no shutdown() / remove() handler is called for ENA;
instead pci_device_shutdown() clears the master bit of the PCI device,
stopping all DMA transactions;

(b) Kexec reboot happens and the device gets enabled again, likely having
its FW with that DMA transaction buffered; then it may trigger the (now
invalid) memory operation in the new kernel, corrupting kernel memory area.

This patch aims to prevent this, by implementing a shutdown() handler
quite similar to the remove() one - the difference being the handling
of the netdev, which is unregistered on remove(), but following the
convention observed in other drivers, it's only detached on shutdown().

This prevents an odd issue in AWS Nitro instances, in which after the 2nd
kexec the next one will fail with an initrd corruption, caused by a wild
DMA write to invalid kernel memory. The lspci output for the adapter
present in my instance is:

00:05.0 Ethernet controller [0200]: Amazon.com, Inc. Elastic Network
Adapter (ENA) [1d0f:ec20]

Suggested-by: Gavin Shan <gshan@redhat.com>
Signed-off-by: Guilherme G. Piccoli <gpiccoli@canonical.com>
Acked-by: Sameeh Jubran <sameehj@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-25 12:03:29 -07:00
Hangbin Liu c085dbfb1c selftests/net/forwarding: define libs as TEST_PROGS_EXTENDED
The lib files should not be defined as TEST_PROGS, or we will run them
in run_kselftest.sh.

Also remove ethtool_lib.sh exec permission.

Fixes: 81573b18f2 ("selftests/net/forwarding: add Makefile to install tests")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-25 12:01:18 -07:00
Hangbin Liu 919a23e9d6 selftests/net: add missing tests to Makefile
Find some tests are missed in Makefile by running:
for file in $(ls *.sh); do grep -q $file Makefile || echo $file; done

Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-25 11:33:02 -07:00
Linus Torvalds e2cf67f668 zonefs fixes for 5.6 final
A single fix in this pull request to correctly handle the size of
 read-only zone files (from me).
 
 Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
 -----BEGIN PGP SIGNATURE-----
 
 iHUEABYIAB0WIQSRPv8tYSvhwAzJdzjdoc3SxdoYdgUCXnrJJAAKCRDdoc3SxdoY
 dgZXAQDK88T4sdtFq1Fl1PuP+oyzHml+xgNo0djZQOdicnD6qQD8CgMGDFQQG4dv
 Ral+67qEyvUABGt0Vkmy29wuN8El6wQ=
 =+1D9
 -----END PGP SIGNATURE-----

Merge tag 'zonefs-5.6-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs

Pull zonefs fix from Damien Le Moal:
 "A single fix from me to correctly handle the size of read-only zone
  files"

* tag 'zonefs-5.6-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs:
  zonfs: Fix handling of read-only zones
2020-03-25 10:34:02 -07:00
Shane Francis 47f7826c52 drm/radeon: fix scatter-gather mapping with user pages
Calls to dma_map_sg may return less segments / entries than requested
if they fall on page bounderies. The old implementation did not
support this use case.

Fixes: be62dbf554 ("iommu/amd: Convert AMD iommu driver to the dma-iommu api")
Bug: https://bugzilla.kernel.org/show_bug.cgi?id=206461
Bug: https://bugzilla.kernel.org/show_bug.cgi?id=206895
Bug: https://gitlab.freedesktop.org/drm/amd/issues/1056
Signed-off-by: Shane Francis <bigbeeshane@gmail.com>
Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200325090741.21957-4-bigbeeshane@gmail.com
Cc: stable@vger.kernel.org
2020-03-25 12:10:55 -04:00
Shane Francis 0199172f93 drm/amdgpu: fix scatter-gather mapping with user pages
Calls to dma_map_sg may return less segments / entries than requested
if they fall on page bounderies. The old implementation did not
support this use case.

Fixes: be62dbf554 ("iommu/amd: Convert AMD iommu driver to the dma-iommu api")
Bug: https://bugzilla.kernel.org/show_bug.cgi?id=206461
Bug: https://bugzilla.kernel.org/show_bug.cgi?id=206895
Bug: https://gitlab.freedesktop.org/drm/amd/issues/1056
Signed-off-by: Shane Francis <bigbeeshane@gmail.com>
Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200325090741.21957-3-bigbeeshane@gmail.com
Cc: stable@vger.kernel.org
2020-03-25 12:10:40 -04:00
Shane Francis 42e67b479e drm/prime: use dma length macro when mapping sg
As dma_map_sg can reorganize scatter-gather lists in a
way that can cause some later segments to be empty we should
always use the sg_dma_len macro to fetch the actual length.

This could now be 0 and not need to be mapped to a page or
address array

Fixes: be62dbf554 ("iommu/amd: Convert AMD iommu driver to the dma-iommu api")
Bug: https://bugzilla.kernel.org/show_bug.cgi?id=206461
Bug: https://bugzilla.kernel.org/show_bug.cgi?id=206895
Bug: https://gitlab.freedesktop.org/drm/amd/issues/1056
Signed-off-by: Shane Francis <bigbeeshane@gmail.com>
Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200325090741.21957-2-bigbeeshane@gmail.com
Cc: stable@vger.kernel.org
2020-03-25 12:01:23 -04:00
Marek Szyprowski c8042d1e5c soc: samsung: chipid: Fix return value on non-Exynos platforms
Correct the probe return value to -ENODEV on non-Exynos platforms.

Link: https://lore.kernel.org/r/20200316175652.5604-4-krzk@kernel.org
Fixes: 02fb29882d ("soc: samsung: chipid: Drop "syscon" compatible requirement")
Cc: <stable@vger.kernel.org>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-03-25 14:27:27 +01:00
Arnd Bergmann 47039b55f8 Merge tag 'tee-amdtee-fix2-for-5.6' of https://git.linaro.org/people/jens.wiklander/linux-tee into arm/fixes
tee: amdtee: out of bounds read in find_session()

* tag 'tee-amdtee-fix2-for-5.6' of https://git.linaro.org/people/jens.wiklander/linux-tee:
  tee: amdtee: out of bounds read in find_session()

Link: https://lore.kernel.org/r/20200320063446.GA9892@jade
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-03-25 14:27:27 +01:00
Arnd Bergmann a88fead83e Merge tag 'oxnas-arm-soc-dt-fixes-for-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/narmstrong/linux-oxnas into arm/fixes
- interrupt controller mask init fix to avoid spurious irq after soft reset

* tag 'oxnas-arm-soc-dt-fixes-for-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/narmstrong/linux-oxnas:
  ARM: dts: oxnas: Fix clear-mask property

Link: https://lore.kernel.org/r/1cc83d6b-78de-9160-59bf-77cfe726a365@baylibre.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-03-25 14:27:25 +01:00
Arnd Bergmann 94bb9d1858 Merge tag 'arm-soc/for-5.6/devicetree-fixes-part2' of https://github.com/Broadcom/stblinux into arm/fixes
This pull request contains Broadcom ARM-based SoCs Device Tree fixes for
5.6, please pull the following:

- Nick fixes the missing pinctrl-names property for the Raspberry Pi
  Zero Wireless DTS

- Nicolas fixes the VC4 firmware node dma-range property which does not
  have the limitations of the soc's bus node

* tag 'arm-soc/for-5.6/devicetree-fixes-part2' of https://github.com/Broadcom/stblinux:
  ARM: dts: bcm283x: Fix vc4's firmware bus DMA limitations
  ARM: bcm2835-rpi-zero-w: Add missing pinctrl name

Link: https://lore.kernel.org/r/20200323025246.22713-1-f.fainelli@gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-03-25 14:27:23 +01:00
Linus Walleij 9b631649c4 arm64: dts: Fix leftover entry-methods for PSCI
These two device trees were either missed or added after
the commit correcting the "entry-method" from
"arm,psci" to just "psci" as per the binding.

Link: https://lore.kernel.org/r/20200322115846.16265-1-linus.walleij@linaro.org
Cc: Sudeep Holla <sudeep.holla@arm.com>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Chunyan Zhang <chunyan.zhang@unisoc.com>
Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-03-25 14:27:22 +01:00
Arnd Bergmann ae6e45986a Merge tag 'omap-for-v5.6/fixes-rc6-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/fixes
Few more fixes for omaps

Just few dts fixes:

- A fix droid4 touchscreen stopping working with lost gpio interrupts

- Also limit omap5 dma range similar to what we've recently done for dra7

* tag 'omap-for-v5.6/fixes-rc6-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: dts: omap5: Add bus_dma_limit for L3 bus
  ARM: dts: omap4-droid4: Fix lost touchscreen interrupts
  ARM: dts: dra7: Add bus_dma_limit for L3 bus
  ARM: dts: N900: fix onenand timings
  ARM: dts: Fix dm814x Ethernet by changing to use rgmii-id mode

Link: https://lore.kernel.org/r/pull-1584575254-461940@atomide.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-03-25 14:27:22 +01:00
Marek Szyprowski 05ff1e3fb8 ARM: dts: exynos: Fix regulator node aliasing on Midas-based boards
Commit d4ec0cb050 ("ARM: dts: exynos: Add support for the
touch-sensitive buttons on Midas family") added a new fixed regulator
("voltage-regulator-6") to base "midas" .dtsi, but it didn't update the
clients of that .dtsi, which define their own fixed regulators starting
from the "voltage-regulator-6". This results in aliasing of the regulator
dt nodes and breaks operation of OLED panel due to lack of power supply.
Fix this by increasing the numbers in the fixed regulator names for those
boards.

Link: https://lore.kernel.org/r/20200316173710.3144-1-krzk@kernel.org
Fixes: d4ec0cb050 ("ARM: dts: exynos: Add support for the touch-sensitive buttons on Midas family")
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Denis 'GNUtoo' Carikli <GNUtoo@cyberdimension.org>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-03-25 14:27:18 +01:00