Commit Graph

995977 Commits

Author SHA1 Message Date
Linus Torvalds
a2b095e0ef tpmdd updates for Linux v5.12-rc1
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Merge tag 'tpmdd-next-v5.12-rc1-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd

Pull tpm updates from Jarkko Sakkinen:
 "New features:

   - Cr50 I2C TPM driver

   - sysfs exports of PCR registers in TPM 2.0 chips

  Bug fixes:

   - bug fixes for tpm_tis driver, which had a racy wait for hardware
     state change to be ready to send a command to the TPM chip. The bug
     has existed already since 2006, but has only made itself known in
     recent past. This is the same as the "last time" :-)

   - Otherwise there's bunch of fixes for not as alarming regressions. I
     think the list is about the same as last time, except I added fixes
     for some disjoint bugs in trusted keys that I found some time ago"

* tag 'tpmdd-next-v5.12-rc1-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd:
  KEYS: trusted: Reserve TPM for seal and unseal operations
  KEYS: trusted: Fix migratable=1 failing
  KEYS: trusted: Fix incorrect handling of tpm_get_random()
  tpm/ppi: Constify static struct attribute_group
  ABI: add sysfs description for tpm exports of PCR registers
  tpm: add sysfs exports for all banks of PCR registers
  keys: Update comment for restrict_link_by_key_or_keyring_chain
  tpm: Remove tpm_dev_wq_lock
  char: tpm: add i2c driver for cr50
  tpm: Fix fall-through warnings for Clang
  tpm_tis: Clean up locality release
  tpm_tis: Fix check_locality for correct locality acquisition
2021-02-21 17:15:44 -08:00
Linus Torvalds
177626c6d5 seccomp updates for v5.12-rc1
- Fix a non-FILTER build failure for some architectures (Paul Cercueil)
 - Improve performance with correct memory barrier (wanghongzhe)
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Merge tag 'seccomp-v5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull seccomp updates from Kees Cook:
 "Two small seccomp updates.

  This contains a fix for a build failure that went unnoticed for many
  years, and a memory barrier correction:

   - Fix a non-FILTER build failure for some architectures (Paul
     Cercueil)

   - Improve performance with correct memory barrier (wanghongzhe)"

* tag 'seccomp-v5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  seccomp: Improve performace by optimizing rmb()
  seccomp: Add missing return in non-void function
2021-02-21 17:12:18 -08:00
Linus Torvalds
92ae63c07b Smack updates for v5.12.
Bounds checking for writes to smackfs interfaces.
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Merge tag 'Smack-for-v5.12' of git://github.com/cschaufler/smack-next

Pull smack updates from Casey Schaufler:
 "Bounds checking for writes to smackfs interfaces"

* tag 'Smack-for-v5.12' of git://github.com/cschaufler/smack-next:
  smackfs: restrict bytes count in smackfs write functions
2021-02-21 17:11:07 -08:00
Linus Torvalds
d643a99089 integrity-v5.12
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Merge tag 'integrity-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity

Pull IMA updates from Mimi Zohar:
 "New is IMA support for measuring kernel critical data, as per usual
  based on policy. The first example measures the in memory SELinux
  policy. The second example measures the kernel version.

  In addition are four bug fixes to address memory leaks and a missing
  'static' function declaration"

* tag 'integrity-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity:
  integrity: Make function integrity_add_key() static
  ima: Free IMA measurement buffer after kexec syscall
  ima: Free IMA measurement buffer on error
  IMA: Measure kernel version in early boot
  selinux: include a consumer of the new IMA critical data hook
  IMA: define a builtin critical data measurement policy
  IMA: extend critical data hook to limit the measurement based on a label
  IMA: limit critical data measurement based on a label
  IMA: add policy rule to measure critical data
  IMA: define a hook to measure kernel integrity critical data
  IMA: add support to measure buffer data hash
  IMA: generalize keyring specific measurement constructs
  evm: Fix memleak in init_desc
2021-02-21 17:08:06 -08:00
Linus Torvalds
23b6ba45f3 audit/stable-5.12 PR 20210215
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Merge tag 'audit-pr-20210215' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit

Pull audit updates from Paul Moore:
 "Three very trivial patches for audit this time"

* tag 'audit-pr-20210215' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit:
  audit: Make audit_filter_syscall() return void
  audit: Remove leftover reference to the audit_tasklet
  kernel/audit: convert comma to semicolon
2021-02-21 17:02:51 -08:00
Hyeongseok Kim
f728760aa9 exfat: improve performance of exfat_free_cluster when using dirsync mount option
There are stressful update of cluster allocation bitmap when using
dirsync mount option which is doing sync buffer on every cluster bit
clearing. This could result in performance degradation when deleting
big size file.
Fix to update only when the bitmap buffer index is changed would make
less disk access, improving performance especially for truncate operation.

Testing with Samsung 256GB sdcard, mounted with dirsync option
(mount -t exfat /dev/block/mmcblk0p1 /temp/mount -o dirsync)

Remove 4GB file, blktrace result.
[Before] : 39 secs.
Total (blktrace):
 Reads Queued:      0,        0KiB   Writes Queued:      32775,    16387KiB
 Read Dispatches:   0,        0KiB   Write Dispatches:   32775,    16387KiB
 Reads Requeued:    0                Writes Requeued:        0
 Reads Completed:   0,        0KiB   Writes Completed:   32775,    16387KiB
 Read Merges:       0,        0KiB   Write Merges:           0,        0KiB
 IO unplugs:        2                Timer unplugs:          0

[After] : 1 sec.
Total (blktrace):
 Reads Queued:      0,        0KiB   Writes Queued:         13,        6KiB
 Read Dispatches:   0,        0KiB   Write Dispatches:      13,        6KiB
 Reads Requeued:    0                Writes Requeued:        0
 Reads Completed:   0,        0KiB   Writes Completed:      13,        6KiB
 Read Merges:       0,        0KiB   Write Merges:           0,        0KiB
 IO unplugs:        1                Timer unplugs:          0

Signed-off-by: Hyeongseok Kim <hyeongseok@gmail.com>
Acked-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
2021-02-22 09:55:14 +09:00
Namjae Jeon
78c276f549 exfat: fix shift-out-of-bounds in exfat_fill_super()
syzbot reported a warning which could cause shift-out-of-bounds issue.

Call Trace:
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0x183/0x22e lib/dump_stack.c:120
 ubsan_epilogue lib/ubsan.c:148 [inline]
 __ubsan_handle_shift_out_of_bounds+0x432/0x4d0 lib/ubsan.c:395
 exfat_read_boot_sector fs/exfat/super.c:471 [inline]
 __exfat_fill_super fs/exfat/super.c:556 [inline]
 exfat_fill_super+0x2acb/0x2d00 fs/exfat/super.c:624
 get_tree_bdev+0x406/0x630 fs/super.c:1291
 vfs_get_tree+0x86/0x270 fs/super.c:1496
 do_new_mount fs/namespace.c:2881 [inline]
 path_mount+0x1937/0x2c50 fs/namespace.c:3211
 do_mount fs/namespace.c:3224 [inline]
 __do_sys_mount fs/namespace.c:3432 [inline]
 __se_sys_mount+0x2f9/0x3b0 fs/namespace.c:3409
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9

exfat specification describe sect_per_clus_bits field of boot sector
could be at most 25 - sect_size_bits and at least 0. And sect_size_bits
can also affect this calculation, It also needs validation.
This patch add validation for sect_per_clus_bits and sect_size_bits
field of boot sector.

Fixes: 719c1e1829 ("exfat: add super block operations")
Cc: stable@vger.kernel.org # v5.9+
Reported-by: syzbot+da4fe66aaadd3c2e2d1c@syzkaller.appspotmail.com
Reviewed-by: Sungjong Seo <sj1557.seo@samsung.com>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
2021-02-22 09:55:13 +09:00
Linus Torvalds
d1fec2214b selinux/stable-5.12 PR 20210215
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Merge tag 'selinux-pr-20210215' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux

Pull selinux updates from Paul Moore:
 "We've got a good handful of patches for SELinux this time around; with
  everything passing the selinux-testsuite and applying cleanly to your
  tree as of a few minutes ago. The highlights are:

   - Add support for labeling anonymous inodes, and extend this new
     support to userfaultfd.

   - Fallback to SELinux genfs file labeling if the filesystem does not
     have xattr support. This is useful for virtiofs which can vary in
     its xattr support depending on the backing filesystem.

   - Classify and handle MPTCP the same as TCP in SELinux.

   - Ensure consistent behavior between inode_getxattr and
     inode_listsecurity when the SELinux policy is not loaded. This
     fixes a known problem with overlayfs.

   - A couple of patches to prune some unused variables from the SELinux
     code, mark private variables as static, and mark other variables as
     __ro_after_init or __read_mostly"

* tag 'selinux-pr-20210215' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
  fs: anon_inodes: rephrase to appropriate kernel-doc
  userfaultfd: use secure anon inodes for userfaultfd
  selinux: teach SELinux about anonymous inodes
  fs: add LSM-supporting anon-inode interface
  security: add inode_init_security_anon() LSM hook
  selinux: fall back to SECURITY_FS_USE_GENFS if no xattr support
  selinux: mark selinux_xfrm_refcount as __read_mostly
  selinux: mark some global variables __ro_after_init
  selinux: make selinuxfs_mount static
  selinux: drop the unnecessary aurule_callback variable
  selinux: remove unused global variables
  selinux: fix inconsistency between inode_getxattr and inode_listsecurity
  selinux: handle MPTCP consistently with TCP
2021-02-21 16:54:54 -08:00
Linus Torvalds
e210761fb3 Detect kernel thread correctly, and ignore harmless data race.
tomoyo: recognize kernel threads correctly
   tomoyo: ignore data race while checking quota
 
  security/tomoyo/file.c    |   16 ++++++++--------
  security/tomoyo/network.c |   10 +++++-----
  security/tomoyo/util.c    |   24 ++++++++++++------------
  3 files changed, 25 insertions(+), 25 deletions(-)
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Merge tag 'tomoyo-pr-20210215' of git://git.osdn.net/gitroot/tomoyo/tomoyo-test1

Pull tomoyo updates from Tetsuo Handa:
 "Detect kernel thread correctly, and ignore harmless data race"

* tag 'tomoyo-pr-20210215' of git://git.osdn.net/gitroot/tomoyo/tomoyo-test1:
  tomoyo: recognize kernel threads correctly
  tomoyo: ignore data race while checking quota
2021-02-21 16:52:06 -08:00
Jens Axboe
843bbfd49f io-wq: make io_wq_fork_thread() available to other users
We want to use this in io_uring proper as well, for the SQPOLL thread.
Rename it from fork_thread() to io_wq_fork_thread(), and make it
available through the io-wq.h header.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-02-21 17:25:22 -07:00
Jens Axboe
bf1daa4bfc io-wq: only remove worker from free_list, if it was there
If the worker isn't on the free_list, don't attempt to delete it.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-02-21 17:25:22 -07:00
Jens Axboe
4379bf8bd7 io_uring: remove io_identity
We are no longer grabbing state, so no need to maintain an IO identity
that we COW if there are changes.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-02-21 17:25:22 -07:00
Jens Axboe
44526bedc2 io_uring: remove any grabbing of context
The async workers are siblings of the task itself, so by definition we
have all the state that we need. Remove any of the state grabbing that
we have, and requests flagging what they need.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-02-21 17:25:22 -07:00
Jens Axboe
c6d77d92b7 io-wq: worker idling always returns false
Remove the bool return, and the checking for it in the caller.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-02-21 17:25:22 -07:00
Jens Axboe
3bfe610669 io-wq: fork worker threads from original task
Instead of using regular kthread kernel threads, create kernel threads
that are like a real thread that the task would create. This ensures that
we get all the context that we need, without having to carry that state
around. This greatly reduces the code complexity, and the risk of missing
state for a given request type.

With the move away from kthread, we can also dump everything related to
assigned state to the new threads.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-02-21 17:25:22 -07:00
Jens Axboe
6fb8f43ced kernel: treat PF_IO_WORKER like PF_KTHREAD for ptrace/signals
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-02-21 17:25:22 -07:00
Jens Axboe
4727dc20e0 arch: setup PF_IO_WORKER threads like PF_KTHREAD
PF_IO_WORKER are kernel threads too, but they aren't PF_KTHREAD in the
sense that we don't assign ->set_child_tid with our own structure. Just
ensure that every arch sets up the PF_IO_WORKER threads like kthreads
in the arch implementation of copy_thread().

Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-02-21 17:25:22 -07:00
Jens Axboe
958234d5ec io-wq: don't pass 'wqe' needlessly around
Just grab it from the worker itself, which we're already passing in.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-02-21 17:25:22 -07:00
Jens Axboe
5aa75ed5b9 io_uring: tie async worker side to the task context
Move it outside of the io_ring_ctx, and tie it to the io_uring task
context.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-02-21 17:25:22 -07:00
Jens Axboe
3b094e727d io-wq: get rid of wq->use_refs
We don't support attach anymore, so doesn't make sense to carry the
use_refs reference count. Get rid of it.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-02-21 17:25:22 -07:00
Jens Axboe
d25e3a3de0 io_uring: disable io-wq attaching
Moving towards making the io_wq per ring per task, so we can't really
share it between rings. Which is fine, since we've now dropped some
of that fat from it.

Retain compatibility with how attaching works, so that any attempt to
attach to an fd that doesn't exist, or isn't an io_uring fd, will fail
like it did before.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-02-21 17:25:22 -07:00
Jens Axboe
1cbd9c2bcf io-wq: don't create any IO workers upfront
When the manager thread starts up, it creates a worker per node for
the given context. Just let these get created dynamically, like we do
for adding further workers.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-02-21 17:25:22 -07:00
Jens Axboe
7c25c0d16e io_uring: remove the need for relying on an io-wq fallback worker
We hit this case when the task is exiting, and we need somewhere to
do background cleanup of requests. Instead of relying on the io-wq
task manager to do this work for us, just stuff it somewhere where
we can safely run it ourselves directly.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-02-21 17:25:22 -07:00
Jens Axboe
2713154906 Merge branch 'for-5.12/io_uring' into io_uring-worker.v3
* for-5.12/io_uring: (21 commits)
  io_uring: run task_work on io_uring_register()
  io_uring: fix leaving invalid req->flags
  io_uring: wait potential ->release() on resurrect
  io_uring: keep generic rsrc infra generic
  io_uring: zero ref_node after killing it
  io_uring: make the !CONFIG_NET helpers a bit more robust
  io_uring: don't hold uring_lock when calling io_run_task_work*
  io_uring: fail io-wq submission from a task_work
  io_uring: don't take uring_lock during iowq cancel
  io_uring: fail links more in io_submit_sqe()
  io_uring: don't do async setup for links' heads
  io_uring: do io_*_prep() early in io_submit_sqe()
  io_uring: split sqe-prep and async setup
  io_uring: don't submit link on error
  io_uring: move req link into submit_state
  io_uring: move io_init_req() into io_submit_sqe()
  io_uring: move io_init_req()'s definition
  io_uring: don't duplicate ->file check in sfr
  io_uring: keep io_*_prep() naming consistent
  io_uring: kill fictitious submit iteration index
  ...
2021-02-21 17:22:53 -07:00
Pavel Begunkov
b6c23dd5a4 io_uring: run task_work on io_uring_register()
Do run task_work before io_uring_register(), that might make a first
quiesce round much nicer. We generally do that for any syscall invocation
to avoid spurious -EINTR/-ERESTARTSYS, for task_work that we generate.
This patch brings io_uring_register() inline with the two other io_uring
syscalls.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-02-21 17:18:56 -07:00
Masahiro Yamada
02aff85922 kbuild: check the minimum linker version in Kconfig
Unify the two scripts/ld-version.sh and scripts/lld-version.sh, and
check the minimum linker version like scripts/cc-version.sh did.

I tested this script for some corner cases reported in the past:

 - GNU ld version 2.25-15.fc23
   as reported by commit 8083013fc3 ("ld-version: Fix it on Fedora")

 - GNU ld (GNU Binutils) 2.20.1.20100303
   as reported by commit 0d61ed17dd ("ld-version: Drop the 4th and
   5th version components")

This script show an error message if the linker is too old:

  $ make LD=ld.lld-9
    SYNC    include/config/auto.conf
  ***
  *** Linker is too old.
  ***   Your LLD version:    9.0.1
  ***   Minimum LLD version: 10.0.1
  ***
  scripts/Kconfig.include:50: Sorry, this linker is not supported.
  make[2]: *** [scripts/kconfig/Makefile:71: syncconfig] Error 1
  make[1]: *** [Makefile:600: syncconfig] Error 2
  make: *** [Makefile:708: include/config/auto.conf] Error 2

I also moved the check for gold to this script, so gold is still rejected:

  $ make LD=gold
    SYNC    include/config/auto.conf
  gold linker is not supported as it is not capable of linking the kernel proper.
  scripts/Kconfig.include:50: Sorry, this linker is not supported.
  make[2]: *** [scripts/kconfig/Makefile:71: syncconfig] Error 1
  make[1]: *** [Makefile:600: syncconfig] Error 2
  make: *** [Makefile:708: include/config/auto.conf] Error 2

Thanks to David Laight for suggesting shell script improvements.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Tested-by: Nathan Chancellor <nathan@kernel.org>
2021-02-22 08:22:04 +09:00
Masahiro Yamada
05f6bbf2d7 kbuild: remove ld-version macro
There is no direct user of ld-version; you can use CONFIG_LD_VERSION
if needed.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
2021-02-22 08:22:04 +09:00
Masahiro Yamada
b9da928abf scripts: add generic syscallhdr.sh
Most of architectures generate syscall headers at the compile time
in a similar way.

As of v5.11-rc1, 12 architectures duplicate similar shell scripts:

  $ find arch -name syscallhdr.sh | sort
  arch/alpha/kernel/syscalls/syscallhdr.sh
  arch/arm/tools/syscallhdr.sh
  arch/ia64/kernel/syscalls/syscallhdr.sh
  arch/m68k/kernel/syscalls/syscallhdr.sh
  arch/microblaze/kernel/syscalls/syscallhdr.sh
  arch/mips/kernel/syscalls/syscallhdr.sh
  arch/parisc/kernel/syscalls/syscallhdr.sh
  arch/powerpc/kernel/syscalls/syscallhdr.sh
  arch/sh/kernel/syscalls/syscallhdr.sh
  arch/sparc/kernel/syscalls/syscallhdr.sh
  arch/x86/entry/syscalls/syscallhdr.sh
  arch/xtensa/kernel/syscalls/syscallhdr.sh

My goal is to unify them into scripts/syscallhdr.sh.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2021-02-22 08:22:04 +09:00
Masahiro Yamada
9df526b03c scripts: add generic syscalltbl.sh
Most of architectures generate syscall headers at the compile time
in a similar way.

The syscall table has the same format for all architectures. Each line
has up to 5 fields; syscall number, ABI, syscall name, native entry
point, and compat entry point. The syscall table is processed by
syscalltbl.sh script into header files.

Despite the same pattern, scripts are maintained per architecture,
which results in code duplication and bad maintainability.

As of v5.11-rc1, 12 architectures duplicate similar shell scripts:

  $ find arch -name syscalltbl.sh | sort
  arch/alpha/kernel/syscalls/syscalltbl.sh
  arch/arm/tools/syscalltbl.sh
  arch/ia64/kernel/syscalls/syscalltbl.sh
  arch/m68k/kernel/syscalls/syscalltbl.sh
  arch/microblaze/kernel/syscalls/syscalltbl.sh
  arch/mips/kernel/syscalls/syscalltbl.sh
  arch/parisc/kernel/syscalls/syscalltbl.sh
  arch/powerpc/kernel/syscalls/syscalltbl.sh
  arch/sh/kernel/syscalls/syscalltbl.sh
  arch/sparc/kernel/syscalls/syscalltbl.sh
  arch/x86/entry/syscalls/syscalltbl.sh
  arch/xtensa/kernel/syscalls/syscalltbl.sh

My goal is to unify them into scripts/syscalltbl.sh.

__SYSCALL_WITH_COMPAT should be defined as follows:

32-bit kernel:
  #define __SYSCALL_WITH_COMPAT(nr, native, compat) __SYSCALL(nr, native)

64-bit kernel:

  #define __SYSCALL_WITH_COMPAT(nr, native, compat) __SYSCALL(nr, compat)

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2021-02-22 08:22:03 +09:00
Masahiro Yamada
29c5c3ac63 arch: syscalls: remove $(srctree)/ prefix from syscall tables
The 'syscall' variables are not directly used in the commands.
Remove the $(srctree)/ prefix because we can rely on VPATH.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2021-02-22 08:22:03 +09:00
Masahiro Yamada
865fa29f7d arch: syscalls: add missing FORCE and fix 'targets' to make if_changed work
The rules in these Makefiles cannot detect the command line change
because the prerequisite 'FORCE' is missing.

Adding 'FORCE' will result in the headers being rebuilt every time
because the 'targets' additions are also wrong; the file paths in
'targets' must be relative to the current Makefile.

Fix all of them so the if_changed rules work correctly.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
2021-02-22 08:21:55 +09:00
Linus Torvalds
d99676af54 drm pull for 5.12-rc1
docs:
 - lots of updated docs
 
 core:
 - require crtc to have unique primary plane
 - fourcc macro fix
 - PCI bar quirk for bar resizing
 - don't sent hotplug on error
 - move vm code to legacy
 - nuke hose only used on old oboslete alpha
 
 dma-buf:
 - kernel doc updates
 - improved lock tracking
 
 dp/hdmi:
 - DP-HDMI2.1 protocol converter support
 
 ttm:
 - bo size handling cleanup
 - release a pinned bo warning
 - cleanup lru handler
 - avoid using pages with drm_prime_sg_to_page_addr_arrays
 
 cma-helper:
 - prime/mmap fixes
 
 bridge:
 - add DP support
 
 gma500:
 - remove gma3600 support
 
 i915:
 - try eDP fast/narrow link again with fallback
 - Intel eDP backlight control
 - replace display register read/write macros
 - refactor intel_display.c
 - display power improvements
 - HPD code cleanup
 - Rocketlake display fixes
 - Power/backlight/RPM fixes
 - DG1 display fix
 - IVB/BYT clear residuals security fix again
 - make i915 mitigations options via parameter
 - HSW GT1 GPU hangs fixes
 - DG1 workaround hang fixes
 - TGL DMAR hang avoidance
 - Lots of GT fixes
 - follow on fixes for residuals clear
 - gen7 per-engine-reset support
 - HDCP2.2 + HDCP1.4 GEN12 DP MST support
 - TGL clear color support
 - backlight refactoring
 - VRR/Adaptive sync enabling on DP/EDP for TGL+
 - async flips for all ilk+
 
 amdgpu:
 - rework IH ring handling (Vega/Navi)
 - rework HDP handling (Vega/Navi)
 - swSMU updates for renoir/vangogh
 - Sienna Cichild overdrive support
 - FP16 on DCE8-11 support
 - GPU reset on navy flounder/vangogh
 - SMU profile fixes for APU
 - SR-IOV fixes
 - Vangogh SMU fixes
 - fan speed control fixes
 
 amdkfd:
 - config handling fix
 - buffer free fix
 - recursive lock warnings fix
 
 nouveau:
 - Turing MMU fault recovery fixes
 - mDP connectors reporting fix
 - audio locking fixes
 - rework engines/instances code to support new scheme
 
 tegra:
 - VIC newer firmware support
 - display/gr2d fixes for older tegra
 - pm reference leak fix
 
 mediatek:
 - SOC MT8183 support
 - decouple sub driver + share mtk mutex driver
 
 radeon:
 - PCI resource fix for some platforms
 
 ingenic:
 - pm support
 - 8-bit delta RGB panels
 
 vmwgfx:
 - managed driver helpers
 
 vc4:
 - BCM2711 DSI1 support
 - converted to atomic helpers
 - enable 10/12 bpc outputs
 - gem prime mmap helpers
 - CEC fix
 
 omap:
 - use degamma table
 - CTM support
 - rework DSI support
 
 imx:
 - stack usage fixes
 - drm managed support
 - imx-tve clock provider leak fix
 -
 
 rcar-du:
 - default mode fixes
 - conversion to managed API
 
 hisilicon:
 - use simple encoder
 
 vkms:
 - writeback connector support
 
 d3:
 - BT2020 support
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Merge tag 'drm-next-2021-02-19' of git://anongit.freedesktop.org/drm/drm

Pull drm updates from Dave Airlie:
 "A pretty normal tree, lots of refactoring across the board, ttm, i915,
  nouveau, and bunch of features in various drivers.

  docs:
   - lots of updated docs

  core:
   - require crtc to have unique primary plane
   - fourcc macro fix
   - PCI bar quirk for bar resizing
   - don't sent hotplug on error
   - move vm code to legacy
   - nuke hose only used on old oboslete alpha

  dma-buf:
   - kernel doc updates
   - improved lock tracking

  dp/hdmi:
   - DP-HDMI2.1 protocol converter support

  ttm:
   - bo size handling cleanup
   - release a pinned bo warning
   - cleanup lru handler
   - avoid using pages with drm_prime_sg_to_page_addr_arrays

  cma-helper:
   - prime/mmap fixes

  bridge:
   - add DP support

  gma500:
   - remove gma3600 support

  i915:
   - try eDP fast/narrow link again with fallback
   - Intel eDP backlight control
   - replace display register read/write macros
   - refactor intel_display.c
   - display power improvements
   - HPD code cleanup
   - Rocketlake display fixes
   - Power/backlight/RPM fixes
   - DG1 display fix
   - IVB/BYT clear residuals security fix again
   - make i915 mitigations options via parameter
   - HSW GT1 GPU hangs fixes
   - DG1 workaround hang fixes
   - TGL DMAR hang avoidance
   - Lots of GT fixes
   - follow on fixes for residuals clear
   - gen7 per-engine-reset support
   - HDCP2.2 + HDCP1.4 GEN12 DP MST support
   - TGL clear color support
   - backlight refactoring
   - VRR/Adaptive sync enabling on DP/EDP for TGL+
   - async flips for all ilk+

  amdgpu:
   - rework IH ring handling (Vega/Navi)
   - rework HDP handling (Vega/Navi)
   - swSMU updates for renoir/vangogh
   - Sienna Cichild overdrive support
   - FP16 on DCE8-11 support
   - GPU reset on navy flounder/vangogh
   - SMU profile fixes for APU
   - SR-IOV fixes
   - Vangogh SMU fixes
   - fan speed control fixes

  amdkfd:
   - config handling fix
   - buffer free fix
   - recursive lock warnings fix

  nouveau:
   - Turing MMU fault recovery fixes
   - mDP connectors reporting fix
   - audio locking fixes
   - rework engines/instances code to support new scheme

  tegra:
   - VIC newer firmware support
   - display/gr2d fixes for older tegra
   - pm reference leak fix

  mediatek:
   - SOC MT8183 support
   - decouple sub driver + share mtk mutex driver

  radeon:
   - PCI resource fix for some platforms

  ingenic:
   - pm support
   - 8-bit delta RGB panels

  vmwgfx:
   - managed driver helpers

  vc4:
   - BCM2711 DSI1 support
   - converted to atomic helpers
   - enable 10/12 bpc outputs
   - gem prime mmap helpers
   - CEC fix

  omap:
   - use degamma table
   - CTM support
   - rework DSI support

  imx:
   - stack usage fixes
   - drm managed support
   - imx-tve clock provider leak fix
-

  rcar-du:
   - default mode fixes
   - conversion to managed API

  hisilicon:
   - use simple encoder

  vkms:
   - writeback connector support

  d3:
   - BT2020 support"

* tag 'drm-next-2021-02-19' of git://anongit.freedesktop.org/drm/drm: (1459 commits)
  drm/amdgpu: Set reference clock to 100Mhz on Renoir (v2)
  drm/radeon: OLAND boards don't have VCE
  drm/amdkfd: Fix recursive lock warnings
  drm/amd/display: Add FPU wrappers to dcn21_validate_bandwidth()
  drm/amd/display: Fix potential integer overflow
  drm/amdgpu/display: remove hdcp_srm sysfs on device removal
  drm/amdgpu: fix CGTS_TCC_DISABLE register offset on gfx10.3
  drm/i915/gt: Correct surface base address for renderclear
  drm/i915: Disallow plane x+w>stride on ilk+ with X-tiling
  drm/nouveau/top/ga100: initial support
  drm/nouveau/top: add ioctrl/nvjpg
  drm/nouveau/privring: rename from ibus
  drm/nouveau/nvkm: remove nvkm_subdev.index
  drm/nouveau/nvkm: determine subdev id/order from layout
  drm/nouveau/vic: switch to instanced constructor
  drm/nouveau/sw: switch to instanced constructor
  drm/nouveau/sec2: switch to instanced constructor
  drm/nouveau/sec: switch to instanced constructor
  drm/nouveau/pm: switch to instanced constructor
  drm/nouveau/nvenc: switch to instanced constructor
  ...
2021-02-21 14:44:44 -08:00
Chaitanya Kulkarni
13d41b537d n64: store dev instance into disk private data
The device instance is declared globally. Remove global variable & use
the disk->private_data to store the device instance in the
n64cart_probe() and get the same instance from bio->bi_disk->private
data in n64cart_submit_bio.

Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Reviewed-by: Lauri Kasanen <cand@gmx.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-02-21 23:37:52 +01:00
Chaitanya Kulkarni
0d42478085 n64: cleanup n64cart_probe()
The goto label fail_queue is needed to cleanup the queue allocation
when devm_platform_ioremap_resource() or alloc_disk() fails, either of
these two functions are not dependent on the queue variable which is
allocated prior to these calls.

Allocate the queue variable after successful alloc_disk(). Return
error directly when devm_platform_ioremap_resource() or alloc_disk()
fail. Remove fail_queue label and a call to the blk_cleanup_queue().

Direct return from these two functions allows us to remove the local
variable err and allocating queue after alloc_disk() allows us to
remove the local variable queue so we use disk->queue directly.

Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Reviewed-by: Lauri Kasanen <cand@gmx.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-02-21 23:37:52 +01:00
Chaitanya Kulkarni
37772f9136 n64: cosmetics changes
Make the variable declaration ascending order and initialize the
variables at the time of declaration when possible.

Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Reviewed-by: Lauri Kasanen <cand@gmx.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-02-21 23:37:52 +01:00
Chaitanya Kulkarni
82a0c13a08 n64: remove curly brackets
Remove extra braces for the if which has only single statement.

Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Reviewed-by: Lauri Kasanen <cand@gmx.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-02-21 23:37:52 +01:00
Chaitanya Kulkarni
857f6fde1c n64: use sector SECTOR_SHIFT instead 512
Instead of using magic numbers use SECTOR_SHIFT to get the number of
sectors from the size.

Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Reviewed-by: Lauri Kasanen <cand@gmx.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-02-21 23:37:52 +01:00
Chaitanya Kulkarni
2ce503b35d n64: use enums for reg
Macros tend to be not type-safe. Use enum for register definitions.

Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Reviewed-by: Lauri Kasanen <cand@gmx.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-02-21 23:37:52 +01:00
Chaitanya Kulkarni
e39e313263 n64: move module param at the top
Move module parameters at the top of the file after macro definition &
global variables below macro definitions just like we have for other
modules.

Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Reviewed-by: Lauri Kasanen <cand@gmx.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-02-21 23:37:52 +01:00
Chaitanya Kulkarni
9ee8c9a1c7 n64: move module info at the end
Move the module auth, description, and license at the end of the file
just like what we have for the other modules.

Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Reviewed-by: Lauri Kasanen <cand@gmx.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-02-21 23:37:52 +01:00
Chaitanya Kulkarni
f1e19224f5 n64: use pr_fmt to avoid duplicate string
Instead of repeating the n64cart string all over the module use pr_fmt
macro and remove the duplicate string. Also, replace and with or in the
one of the error message.

Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Reviewed-by: Lauri Kasanen <cand@gmx.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-02-21 23:37:52 +01:00
Lauri Kasanen
d9b2a2bbbb block: Add n64 cart driver
This adds support for the Nintendo 64 console's carts. Carts are a
read-only media ranging from 8mb to 64mb.

Only one cart can be connected at once, and switching it requires a
reboot.

No module support to save RAM, as the target has 8mb RAM.

Signed-off-by: Lauri Kasanen <cand@gmx.com>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-02-21 23:37:28 +01:00
Linus Torvalds
10e2ec8ede sound updates for 5.12
A relatively calm release at this time, and no massive code changes
 are found in the stats, while a wide range of code refactoring and
 cleanup have been done.
 
 Note that this update includes the tree-wide trivial changes for
 dropping the return value from ISA remove callbacks, too.
 
 Below lists up some highlight:
 
 * ALSA Core:
 - Support for the software jack injection via debugfs
 - Fixes for sync_stop PCM operations
 
 * HD-audio and USB-audio:
 - A few usual HD-audio device quirks
 - Updates for Tegra HD-audio
 - More quirks for Pioneer and other USB-audio devices
 - Stricter state checks at USB-audio disconnection
 
 * ASoC:
 - Continued code refactoring, cleanup and fixes in ASoC core API
 - A KUnit testsuite for the topology code
 - Lots of ASoC Intel driver Realtek codec updates, quirk additions and
   fixes
 - Support for Ingenic JZ4760(B), Intel AlderLake-P, DT configured
   nVidia cards, Qualcomm lpass-rx-macro and lpass-tx-macro
 - Removal of obsolete SIRF prima/atlas, Txx9 and ZTE zx drivers
 
 * Others:
 - Drop return value from ISA driver remove callback
 - Cleanup with DIV_ROUND_UP() macro
 - FireWire updates, HDSP output loopback support
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Merge tag 'sound-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound updates from Takashi Iwai:
 "A relatively calm release at this time, and no massive code changes
  are found in the stats, while a wide range of code refactoring and
  cleanup have been done.

  Note that this update includes the tree-wide trivial changes for
  dropping the return value from ISA remove callbacks, too.

  Below lists up some highlight:

  ALSA Core:
   - Support for the software jack injection via debugfs
   - Fixes for sync_stop PCM operations

  HD-audio and USB-audio:
   - A few usual HD-audio device quirks
   - Updates for Tegra HD-audio
   - More quirks for Pioneer and other USB-audio devices
   - Stricter state checks at USB-audio disconnection

  ASoC:
   - Continued code refactoring, cleanup and fixes in ASoC core API
   - A KUnit testsuite for the topology code
   - Lots of ASoC Intel driver Realtek codec updates, quirk additions
     and fixes
   - Support for Ingenic JZ4760(B), Intel AlderLake-P, DT configured
     nVidia cards, Qualcomm lpass-rx-macro and lpass-tx-macro
   - Removal of obsolete SIRF prima/atlas, Txx9 and ZTE zx drivers

  Others:
   - Drop return value from ISA driver remove callback
   - Cleanup with DIV_ROUND_UP() macro
   - FireWire updates, HDSP output loopback support"

* tag 'sound-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (322 commits)
  ALSA: hda: intel-dsp-config: add Alder Lake support
  ASoC: soc-pcm: fix hw param limits calculation for multi-DAI
  ASoC: Intel: bytcr_rt5640: Add quirk for the Acer One S1002 tablet
  ASoC: Intel: bytcr_rt5651: Add quirk for the Jumper EZpad 7 tablet
  ASoC: Intel: bytcr_rt5640: Add quirk for the Voyo Winpad A15 tablet
  ASoC: Intel: bytcr_rt5640: Add quirk for the Estar Beauty HD MID 7316R tablet
  ASoC: soc-pcm: fix hwparams min/max init for dpcm
  ALSA: hda/realtek: Quirk for HP Spectre x360 14 amp setup
  ALSA: usb-audio: Add implicit fb quirk for BOSS GP-10
  ALSA: hda: Add another CometLake-H PCI ID
  ASoC: soc-pcm: add soc_pcm_hw_update_format()
  ASoC: soc-pcm: add soc_pcm_hw_update_chan()
  ASoC: soc-pcm: add soc_pcm_hw_update_rate()
  ASoC: wm_adsp: Remove unused control callback structure
  ASoC: SOF: relax ABI checks and avoid unnecessary warnings
  ASoC: codecs: lpass-tx-macro: add dapm widgets and route
  ASoC: codecs: lpass-tx-macro: add support for lpass tx macro
  ASoC: qcom: dt-bindings: add bindings for lpass tx macro codec
  ASoC: codecs: lpass-rx-macro: add iir widgets
  ASoC: codecs: lpass-rx-macro: add dapm widgets and route
  ...
2021-02-21 14:21:35 -08:00
Linus Torvalds
de16175788 media updates for v5.12-rc1
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Merge tag 'media/v5.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:

 - some core fixes in VB2 mem2mem support

 - some improvements and cleanups in V4L2 async kAPI

 - newer controls in V4L2 API for H-264 and HEVC codecs

 - allegro-dvt driver was promoted from staging

 - new i2c sendor drivers: imx334, ov5648, ov8865

 - new automobile camera module: rdacm21

 - ipu3 cio2 driver started gained support for some ACPI BIOSes

 - new ATSC frontend: MaxLinear mxl692 VSB tuner/demod

 - the SMIA/CCS driver gained more support for CSS standard

 - several driver fixes, updates and improvements

* tag 'media/v5.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (362 commits)
  media: v4l: async: Fix kerneldoc documentation for async functions
  media: i2c: max9271: Add MODULE_* macros
  media: i2c: Kconfig: Make MAX9271 a module
  media: imx334: 'ret' is uninitialized, should have been PTR_ERR()
  media: i2c: Add imx334 camera sensor driver
  media: dt-bindings: media: Add bindings for imx334
  media: ov8856: Configure sensor for GRBG Bayer for all modes
  media: i2c: imx219: Implement V4L2_CID_LINK_FREQ control
  media: ov5675: fix vflip/hflip control
  media: ipu3-cio2: Build bridge only if ACPI is enabled
  media: Remove the legacy v4l2-clk API
  media: ov6650: Use the generic clock framework
  media: mt9m111: Use the generic clock framework
  media: ov9640: Use the generic clock framework
  media: pxa_camera: Drop the v4l2-clk clock register
  media: mach-pxa: Register the camera sensor fixed-rate clock
  media: i2c: imx258: get clock from device properties and enable it via runtime PM
  media: i2c: imx258: simplify getting state container
  media: i2c: imx258: add support for binding via device tree
  media: dt-bindings: media: imx258: add bindings for IMX258 sensor
  ...
2021-02-21 14:10:36 -08:00
Linus Torvalds
66f73fb3fa This pull request contains changes (actually just fixes) for UBIFS
JFFS2:
 - Fix for use-after-free in jffs2_sum_write_data()
 - Fix for out-of-bounds access in jffs2_zlib_compress()
 
 UBI:
 - Remove dead/useless code
 
 UBIFS:
 - Fix for a memory leak in ubifs_init_authentication()
 - Fix for high stack usage
 - Fix for a off-by-one error in xattrs code
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Merge tag 'for-linus-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs

Pull JFFS2/UBIFS and UBI updates from Richard Weinberger:
 "JFFS2:
   - Fix for use-after-free in jffs2_sum_write_data()
   - Fix for out-of-bounds access in jffs2_zlib_compress()

  UBI:
   - Remove dead/useless code

  UBIFS:
   - Fix for a memory leak in ubifs_init_authentication()
   - Fix for high stack usage
   - Fix for a off-by-one error in xattrs code"

* tag 'for-linus-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs:
  ubifs: Fix error return code in alloc_wbufs()
  jffs2: check the validity of dstlen in jffs2_zlib_compress()
  ubifs: Fix off-by-one error
  ubifs: replay: Fix high stack usage, again
  ubifs: Fix memleak in ubifs_init_authentication
  jffs2: fix use after free in jffs2_sum_write_data()
  ubi: eba: Delete useless kfree code
  ubi: remove dead code in validate_vid_hdr()
2021-02-21 13:57:08 -08:00
Linus Torvalds
69e9b12a27 MTD core changes:
* Initial support for BCM4908 partitions
 
 Raw NAND controller drivers:
 * Intel: Fix an error handling path in 'ebu_dma_start()'
 * Tango: Remove the driver
 * Marvell: Convert comma to semicolon
 * MXC: Convert comma to semicolon
 * Qcom: Add support for Qcom SMEM parser
 
 Related MTD changes:
 * parsers: Add Qcom SMEM parser
 
 SPI NOR core changes:
 * Add non-uniform erase fixes.
 * Add Global Block Unlock command. It is defined by few flash
  vendors, and it is used for now just by sst.
 
 SPI NOR controller drivers changes:
 * intel-spi: Add support for Intel Alder Lake-P SPI serial flash.
 * hisi-sfc: Put child node np on error path.
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Merge tag 'mtd/for-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux

Pull MTD updates from Richard Weinberger:
 "MTD core changes:
   - Initial support for BCM4908 partitions

  Raw NAND controller drivers:
   - Intel: Fix an error handling path in 'ebu_dma_start()'
   - Tango: Remove the driver
   - Marvell: Convert comma to semicolon
   - MXC: Convert comma to semicolon
   - Qcom: Add support for Qcom SMEM parser

  Related MTD changes:
   - parsers: Add Qcom SMEM parser

  SPI NOR core changes:
   - Add non-uniform erase fixes.
   - Add Global Block Unlock command. It is defined by few flash
     vendors, and it is used for now just by sst.

  SPI NOR controller drivers changes:
   - intel-spi: Add support for Intel Alder Lake-P SPI serial flash.
   - hisi-sfc: Put child node np on error path"

* tag 'mtd/for-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (23 commits)
  dt-bindings: mtd: add binding for BCM4908 partitions
  dt-bindings: mtd: move partition binding to its own file
  mtd: spi-nor: sst: Add support for Global Unlock on sst26vf
  mtd: spi-nor: Add Global Block Unlock command
  mtd: spi-nor: core: Add erase size check for erase command initialization
  mtd: spi-nor: core: Fix erase type discovery for overlaid region
  mtd: spi-nor: sfdp: Fix last erase region marking
  mtd: spi-nor: sfdp: Fix wrong erase type bitmask for overlaid region
  mtd: rawnand: intel: Fix an error handling path in 'ebu_dma_start()'
  mtd: rawnand: tango: Remove the driver
  mtd: rawnand: marvell: convert comma to semicolon
  mtd: st_spi_fsm: convert comma to semicolon
  mtd: convert comma to semicolon
  mtd: parsers: afs: Fix freeing the part name memory in failure
  mtd: parser: imagetag: fix error codes in bcm963xx_parse_imagetag_partitions()
  mtd: phram: use div_u64_rem to stop overwrite len in phram_setup
  mtd: remove redundant assignment to pointer eb
  mtd: spi-nor: hisi-sfc: Put child node np on error path
  mtd: spi-nor: intel-spi: Add support for Intel Alder Lake-P SPI serial flash
  mtd: rawnand: qcom: Add support for Qcom SMEM parser
  ...
2021-02-21 13:54:33 -08:00
Linus Torvalds
04471d3f18 This pull request contains the following changes for UML:
- Many cleanups and fixes for our virtio code
 - Add support for a pseudo RTC
 - Fix for a possible jailbreak
 - Minor fixes (spelling, header files)
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Merge tag 'for-linux-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml

Pull UML updates from Richard Weinberger:

 - Many cleanups and fixes for our virtio code

 - Add support for a pseudo RTC

 - Fix for a possible jailbreak

 - Minor fixes (spelling, header files)

* tag 'for-linux-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml:
  um: irq.h: include <asm-generic/irq.h>
  um: io.h: include <linux/types.h>
  um: add a pseudo RTC
  um: remove process stub VMA
  um: rework userspace stubs to not hard-code stub location
  um: separate child and parent errors in clone stub
  um: defer killing userspace on page table update failures
  um: mm: check more comprehensively for stub changes
  um: print register names in wait_for_stub
  um: hostfs: use a kmem cache for inodes
  mm: Remove arch_remap() and mm-arch-hooks.h
  um: fix spelling mistake in Kconfig "privleges" -> "privileges"
  um: virtio: allow devices to be configured for wakeup
  um: time-travel: rework interrupt handling in ext mode
  um: virtio: disable VQs during suspend
  um: virtio: fix handling of messages without payload
  um: virtio: clean up a comment
2021-02-21 13:53:00 -08:00
Linus Torvalds
df24212a49 s390 updates for the 5.12 merge window
- Convert to using the generic entry infrastructure.
 
 - Add vdso time namespace support.
 
 - Switch s390 and alpha to 64-bit ino_t. As discussed here
   lkml.kernel.org/r/YCV7QiyoweJwvN+m@osiris
 
 - Get rid of expensive stck (store clock) usages where possible. Utilize
   cpu alternatives to patch stckf when supported.
 
 - Make tod_clock usage less error prone by converting it to a union and
   rework code which is using it.
 
 - Machine check handler fixes and cleanups.
 
 - Drop couple of minor inline asm optimizations to fix clang build.
 
 - Default configs changes notably to make libvirt happy.
 
 - Various changes to rework and improve qdio code.
 
 - Other small various fixes and improvements all over the code.
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Merge tag 's390-5.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 updates from Vasily Gorbik:

 - Convert to using the generic entry infrastructure.

 - Add vdso time namespace support.

 - Switch s390 and alpha to 64-bit ino_t. As discussed at

     https://lore.kernel.org/linux-mm/YCV7QiyoweJwvN+m@osiris/

 - Get rid of expensive stck (store clock) usages where possible.
   Utilize cpu alternatives to patch stckf when supported.

 - Make tod_clock usage less error prone by converting it to a union and
   rework code which is using it.

 - Machine check handler fixes and cleanups.

 - Drop couple of minor inline asm optimizations to fix clang build.

 - Default configs changes notably to make libvirt happy.

 - Various changes to rework and improve qdio code.

 - Other small various fixes and improvements all over the code.

* tag 's390-5.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (68 commits)
  s390/qdio: remove 'merge_pending' mechanism
  s390/qdio: improve handling of PENDING buffers for QEBSM devices
  s390/qdio: rework q->qdio_error indication
  s390/qdio: inline qdio_kick_handler()
  s390/time: remove get_tod_clock_ext()
  s390/crypto: use store_tod_clock_ext()
  s390/hypfs: use store_tod_clock_ext()
  s390/debug: use union tod_clock
  s390/kvm: use union tod_clock
  s390/vdso: use union tod_clock
  s390/time: convert tod_clock_base to union
  s390/time: introduce new store_tod_clock_ext()
  s390/time: rename store_tod_clock_ext() and use union tod_clock
  s390/time: introduce union tod_clock
  s390,alpha: switch to 64-bit ino_t
  s390: split cleanup_sie
  s390: use r13 in cleanup_sie as temp register
  s390: fix kernel asce loading when sie is interrupted
  s390: add stack for machine check handler
  s390: use WRITE_ONCE when re-allocating async stack
  ...
2021-02-21 13:40:06 -08:00
Linus Torvalds
3e10585335 x86:
- Support for userspace to emulate Xen hypercalls
 - Raise the maximum number of user memslots
 - Scalability improvements for the new MMU.  Instead of the complex
   "fast page fault" logic that is used in mmu.c, tdp_mmu.c uses an
   rwlock so that page faults are concurrent, but the code that can run
   against page faults is limited.  Right now only page faults take the
   lock for reading; in the future this will be extended to some
   cases of page table destruction.  I hope to switch the default MMU
   around 5.12-rc3 (some testing was delayed due to Chinese New Year).
 - Cleanups for MAXPHYADDR checks
 - Use static calls for vendor-specific callbacks
 - On AMD, use VMLOAD/VMSAVE to save and restore host state
 - Stop using deprecated jump label APIs
 - Workaround for AMD erratum that made nested virtualization unreliable
 - Support for LBR emulation in the guest
 - Support for communicating bus lock vmexits to userspace
 - Add support for SEV attestation command
 - Miscellaneous cleanups
 
 PPC:
 - Support for second data watchpoint on POWER10
 - Remove some complex workarounds for buggy early versions of POWER9
 - Guest entry/exit fixes
 
 ARM64
 - Make the nVHE EL2 object relocatable
 - Cleanups for concurrent translation faults hitting the same page
 - Support for the standard TRNG hypervisor call
 - A bunch of small PMU/Debug fixes
 - Simplification of the early init hypercall handling
 
 Non-KVM changes (with acks):
 - Detection of contended rwlocks (implemented only for qrwlocks,
   because KVM only needs it for x86)
 - Allow __DISABLE_EXPORTS from assembly code
 - Provide a saner follow_pfn replacements for modules
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM updates from Paolo Bonzini:
 "x86:

   - Support for userspace to emulate Xen hypercalls

   - Raise the maximum number of user memslots

   - Scalability improvements for the new MMU.

     Instead of the complex "fast page fault" logic that is used in
     mmu.c, tdp_mmu.c uses an rwlock so that page faults are concurrent,
     but the code that can run against page faults is limited. Right now
     only page faults take the lock for reading; in the future this will
     be extended to some cases of page table destruction. I hope to
     switch the default MMU around 5.12-rc3 (some testing was delayed
     due to Chinese New Year).

   - Cleanups for MAXPHYADDR checks

   - Use static calls for vendor-specific callbacks

   - On AMD, use VMLOAD/VMSAVE to save and restore host state

   - Stop using deprecated jump label APIs

   - Workaround for AMD erratum that made nested virtualization
     unreliable

   - Support for LBR emulation in the guest

   - Support for communicating bus lock vmexits to userspace

   - Add support for SEV attestation command

   - Miscellaneous cleanups

  PPC:

   - Support for second data watchpoint on POWER10

   - Remove some complex workarounds for buggy early versions of POWER9

   - Guest entry/exit fixes

  ARM64:

   - Make the nVHE EL2 object relocatable

   - Cleanups for concurrent translation faults hitting the same page

   - Support for the standard TRNG hypervisor call

   - A bunch of small PMU/Debug fixes

   - Simplification of the early init hypercall handling

  Non-KVM changes (with acks):

   - Detection of contended rwlocks (implemented only for qrwlocks,
     because KVM only needs it for x86)

   - Allow __DISABLE_EXPORTS from assembly code

   - Provide a saner follow_pfn replacements for modules"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (192 commits)
  KVM: x86/xen: Explicitly pad struct compat_vcpu_info to 64 bytes
  KVM: selftests: Don't bother mapping GVA for Xen shinfo test
  KVM: selftests: Fix hex vs. decimal snafu in Xen test
  KVM: selftests: Fix size of memslots created by Xen tests
  KVM: selftests: Ignore recently added Xen tests' build output
  KVM: selftests: Add missing header file needed by xAPIC IPI tests
  KVM: selftests: Add operand to vmsave/vmload/vmrun in svm.c
  KVM: SVM: Make symbol 'svm_gp_erratum_intercept' static
  locking/arch: Move qrwlock.h include after qspinlock.h
  KVM: PPC: Book3S HV: Fix host radix SLB optimisation with hash guests
  KVM: PPC: Book3S HV: Ensure radix guest has no SLB entries
  KVM: PPC: Don't always report hash MMU capability for P9 < DD2.2
  KVM: PPC: Book3S HV: Save and restore FSCR in the P9 path
  KVM: PPC: remove unneeded semicolon
  KVM: PPC: Book3S HV: Use POWER9 SLBIA IH=6 variant to clear SLB
  KVM: PPC: Book3S HV: No need to clear radix host SLB before loading HPT guest
  KVM: PPC: Book3S HV: Fix radix guest SLB side channel
  KVM: PPC: Book3S HV: Remove support for running HPT guest on RPT host without mixed mode support
  KVM: PPC: Book3S HV: Introduce new capability for 2nd DAWR
  KVM: PPC: Book3S HV: Add infrastructure to support 2nd DAWR
  ...
2021-02-21 13:31:43 -08:00
Dan Carpenter
3a2eb515d1 octeontx2-af: Fix an off by one in rvu_dbg_qsize_write()
This code does not allocate enough memory for the NUL terminator so it
ends up putting it one character beyond the end of the buffer.

Fixes: 8756828a81 ("octeontx2-af: Add NPA aura and pool contexts to debugfs")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-02-21 13:29:25 -08:00