Commit Graph

1153394 Commits

Author SHA1 Message Date
Palmer Dabbelt
936100d450 Documentation: RISC-V: Allow patches for non-standard behavior
The patch acceptance policy forbids accepting support for non-standard
behavior.  This policy was written in order to both steer implementers
towards the standards and to avoid coupling the upstream kernel too
tightly to vendor-specific features.  Those were good goals, but in
practice the policy just isn't working: every RISC-V system we have
needs vendor-specific behavior in the kernel and we end up taking that
support which violates the policy.  That's confusing for contributors,
which is the main reason we have a written policy in the first place.

So let's just start taking code for vendor-defined behavior.

Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
Link: https://lore.kernel.org/all/alpine.DEB.2.21.999.2211181027590.4480@utopia.booyaka.com/
[Palmer: merge in Paul's suggestions]
Link: https://lore.kernel.org/r/20221207020815.16214-3-palmer@rivosinc.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2022-12-13 09:38:21 -08:00
Linus Torvalds
57888f7b95 Merge tag 'selinux-pr-20221212' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux
Pull selinux updates from Paul Moore:
 "Two SELinux patches: one increases the sleep time on deprecated
  functionality, and one removes the indirect calls in the sidtab
  context conversion code"

* tag 'selinux-pr-20221212' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
  selinux: remove the sidtab context conversion indirect calls
  selinux: increase the deprecation sleep for checkreqprot and runtime disable
2022-12-13 09:32:05 -08:00
Palmer Dabbelt
37f0ab1477 Documentation: RISC-V: Fix a typo in patch-acceptance
I just stumbled on this when modifying the docs.

Reviewed-by: Anup Patel <anup@brainfault.org>
Link: https://lore.kernel.org/r/20221207020815.16214-2-palmer@rivosinc.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2022-12-13 09:21:42 -08:00
Linus Torvalds
bbdf4d5461 Merge tag 'audit-pr-20221212' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit
Pull audit updates from Paul Moore:
 "Two performance oriented patches for the audit subsystem: one
  consolidates similar code to gain some caching advantages, while the
  other stores a value in a stack variable to avoid repeated lookups in
  a loop.

  The commit descriptions have more information, including some
  before/after performance measurements"

* tag 'audit-pr-20221212' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit:
  audit: unify audit_filter_{uring(), inode_name(), syscall()}
  audit: cache ctx->major in audit_filter_syscall()
2022-12-13 09:20:06 -08:00
Linus Torvalds
299e2b1967 Merge tag 'landlock-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux
Pull landlock updates from Mickaël Salaün:
 "This adds file truncation support to Landlock, contributed by Günther
  Noack. As described by Günther [1], the goal of these patches is to
  work towards a more complete coverage of file system operations that
  are restrictable with Landlock.

  The known set of currently unsupported file system operations in
  Landlock is described at [2]. Out of the operations listed there,
  truncate is the only one that modifies file contents, so these patches
  should make it possible to prevent the direct modification of file
  contents with Landlock.

  The new LANDLOCK_ACCESS_FS_TRUNCATE access right covers both the
  truncate(2) and ftruncate(2) families of syscalls, as well as open(2)
  with the O_TRUNC flag. This includes usages of creat() in the case
  where existing regular files are overwritten.

  Additionally, this introduces a new Landlock security blob associated
  with opened files, to track the available Landlock access rights at
  the time of opening the file. This is in line with Unix's general
  approach of checking the read and write permissions during open(), and
  associating this previously checked authorization with the opened
  file. An ongoing patch documents this use case [3].

  In order to treat truncate(2) and ftruncate(2) calls differently in an
  LSM hook, we split apart the existing security_path_truncate hook into
  security_path_truncate (for truncation by path) and
  security_file_truncate (for truncation of previously opened files)"

Link: https://lore.kernel.org/r/20221018182216.301684-1-gnoack3000@gmail.com [1]
Link: https://www.kernel.org/doc/html/v6.1/userspace-api/landlock.html#filesystem-flags [2]
Link: https://lore.kernel.org/r/20221209193813.972012-1-mic@digikod.net [3]

* tag 'landlock-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux:
  samples/landlock: Document best-effort approach for LANDLOCK_ACCESS_FS_REFER
  landlock: Document Landlock's file truncation support
  samples/landlock: Extend sample tool to support LANDLOCK_ACCESS_FS_TRUNCATE
  selftests/landlock: Test ftruncate on FDs created by memfd_create(2)
  selftests/landlock: Test FD passing from restricted to unrestricted processes
  selftests/landlock: Locally define __maybe_unused
  selftests/landlock: Test open() and ftruncate() in multiple scenarios
  selftests/landlock: Test file truncation support
  landlock: Support file truncation
  landlock: Document init_layer_masks() helper
  landlock: Refactor check_access_path_dual() into is_access_to_paths_allowed()
  security: Create file_truncate hook from path_truncate hook
2022-12-13 09:14:50 -08:00
Linus Torvalds
e529d3507a Merge tag 'dma-mapping-6.2-2022-12-13' of git://git.infradead.org/users/hch/dma-mapping
Pull dma-mapping updates from Christoph Hellwig:

 - reduce the swiotlb buffer size on allocation failure (Alexey
   Kardashevskiy)

 - clean up passing of bogus GFP flags to the dma-coherent allocator
   (Christoph Hellwig)

* tag 'dma-mapping-6.2-2022-12-13' of git://git.infradead.org/users/hch/dma-mapping:
  dma-mapping: reject __GFP_COMP in dma_alloc_attrs
  ALSA: memalloc: don't pass bogus GFP_ flags to dma_alloc_*
  s390/ism: don't pass bogus GFP_ flags to dma_alloc_coherent
  cnic: don't pass bogus GFP_ flags to dma_alloc_coherent
  RDMA/qib: don't pass bogus GFP_ flags to dma_alloc_coherent
  RDMA/hfi1: don't pass bogus GFP_ flags to dma_alloc_coherent
  media: videobuf-dma-contig: use dma_mmap_coherent
  swiotlb: reduce the swiotlb buffer size on allocation failure
2022-12-13 09:05:19 -08:00
Linus Torvalds
6a24711d5c Merge tag 'configfs-6.2-2022-12-13' of git://git.infradead.org/users/hch/configfs
Pull configfs updates from Christoph Hellwig:

 - fix a memory leak in configfs_create_dir (Chen Zhongjin)

 - remove mentions of committable items that were implemented (Bartosz
   Golaszewski)

* tag 'configfs-6.2-2022-12-13' of git://git.infradead.org/users/hch/configfs:
  configfs: remove mentions of committable items
  configfs: fix possible memory leak in configfs_create_dir()
2022-12-13 08:51:13 -08:00
Linus Torvalds
a044dab5e6 Merge tag 'nfs-for-6.2-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull NFS client updates from Trond Myklebust
 "Bugfixes:
   - Fix NULL pointer dereference in the mount parser
   - Fix memory stomp in decode_attr_security_label
   - Fix credential leak in _nfs4_discover_trunking()
   - Fix buffer leak in rpcrdma_req_create()
   - Fix leaked socket in rpc_sockname()
   - Fix deadlock between nfs4_open_recover_helper() and delegreturn
   - Fix an Oops in nfs_d_automount()
   - Fix potential race in nfs_call_unlink()
   - Multiple fixes for the open context mode
   - NFSv4.2 READ_PLUS fixes
   - Fix a regression in which small rsize/wsize values are being
     forbidden
   - Fail client initialisation if the NFSv4.x state manager thread
     can't run
   - Avoid spurious warning of lost lock that is being unlocked.
   - Ensure the initialisation of struct nfs4_label

  Features and cleanups:
   - Trigger the "ls -l" readdir heuristic sooner
   - Clear the file access cache upon login to ensure supplementary
     group info is in sync between the client and server
   - pnfs: Fix up the logging of layout stateids
   - NFSv4.2: Change the default KConfig value for READ_PLUS
   - Use sysfs_emit() instead of scnprintf() where appropriate"

* tag 'nfs-for-6.2-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (24 commits)
  NFSv4.2: Change the default KConfig value for READ_PLUS
  NFSv4.x: Fail client initialisation if state manager thread can't run
  fs: nfs: sysfs: use sysfs_emit() to instead of scnprintf()
  NFS: use sysfs_emit() to instead of scnprintf()
  NFS: Allow very small rsize & wsize again
  NFSv4.2: Fix up READ_PLUS alignment
  NFSv4.2: Set the correct size scratch buffer for decoding READ_PLUS
  SUNRPC: Fix missing release socket in rpc_sockname()
  xprtrdma: Fix regbuf data not freed in rpcrdma_req_create()
  NFS: avoid spurious warning of lost lock that is being unlocked.
  nfs: fix possible null-ptr-deref when parsing param
  NFSv4: check FMODE_EXEC from open context mode in nfs4_opendata_access()
  NFS: make sure open context mode have FMODE_EXEC when file open for exec
  NFS4.x/pnfs: Fix up logging of layout stateids
  NFS: Fix a race in nfs_call_unlink()
  NFS: Fix an Oops in nfs_d_automount()
  NFSv4: Fix a deadlock between nfs4_open_recover_helper() and delegreturn
  NFSv4: Fix a credential leak in _nfs4_discover_trunking()
  NFS: Trigger the "ls -l" readdir heuristic sooner
  NFSv4.2: Fix initialisation of struct nfs4_label
  ...
2022-12-13 08:44:41 -08:00
Guo Ren
c528ef0888 riscv: Fixup compile error with !MMU
Current nommu_virt_defconfig can't compile:

In file included from
arch/riscv/kernel/crash_core.c:3:
arch/riscv/kernel/crash_core.c:
In function 'arch_crash_save_vmcoreinfo':
arch/riscv/kernel/crash_core.c:8:27:
error: 'VA_BITS' undeclared (first use in this function)
    8 |         VMCOREINFO_NUMBER(VA_BITS);
      |                           ^~~~~~~

Add MMU dependency for KEXEC_FILE.

Fixes: 6261586e0c ("RISC-V: Add kexec_file support")
Reported-by: Conor Dooley <conor.dooley@microchip.com>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Guo Ren <guoren@kernel.org>
Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
Tested-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20221207091112.2258674-1-guoren@kernel.org
Cc: stable@vger.kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2022-12-13 08:25:33 -08:00
Jiri Kosina
f722052c99 Merge branch 'for-6.2/wiimote' into for-linus
- support for DJ Hero turntable (Joshua Jun)
2022-12-13 14:42:44 +01:00
Jiri Kosina
ab6847b911 Merge branch 'for-6.2/uclogic' into for-linus
- XP-PEN Deco LW support (José Expósito)
2022-12-13 14:42:10 +01:00
Jiri Kosina
4e6ff44773 Merge branch 'for-6.2/sony' into for-linus
- PS DualShock 4 controller support (Roderick Colenbrander)
2022-12-13 14:41:13 +01:00
Jiri Kosina
6cd132b4f3 Merge branch 'for-6.2/sensor' into for-linus
- support for more than one hinge sensor in hid-sensor-custom (Yauhen Kharuzhy)
2022-12-13 14:40:18 +01:00
Jiri Kosina
54dcc80e7d Merge branch 'for-6.2/rmi' into for-linus
- wakeup event handling fix for RMI driver (Dmitry Torokhov)
2022-12-13 14:37:43 +01:00
Jiri Kosina
9a6f62b54a Merge branch 'for-6.2/mcp2221' into for-linus
- iio support for the MCP2221 HID driver (Matt Ranostay)
2022-12-13 14:36:17 +01:00
Jiri Kosina
3daac75d28 Merge branch 'for-6.2/logitech' into for-linus
- always send SwID in GetProtocolVersion for Logitech HID++ (Andreas Bergmeier)
2022-12-13 14:35:07 +01:00
Jiri Kosina
57383f3c04 Merge branch 'for-6.2/intel-ish' into for-linus 2022-12-13 14:34:43 +01:00
Jiri Kosina
060e4b066e Merge branch 'for-6.2/i2c' into for-linus
- conversion of I2C HID drivers to use new simplified I2C probing (Stephen Kitt)
2022-12-13 14:33:13 +01:00
Jiri Kosina
91e9b02185 Merge branch 'for-6.2/hyperv' into for-linus
- functionally equivalent code cleanups for hyperv driver (Paulo Miguel Almeida)
2022-12-13 14:32:07 +01:00
Jiri Kosina
8d437f11ee Merge branch 'for-6.2/ft260' into for-linus
- fixes and performance improvements to the hid-ft260 driver (Michael Zaidman)
2022-12-13 14:30:33 +01:00
Masahiro Yamada
875ef1a57f kbuild: use .NOTINTERMEDIATE for future GNU Make versions
In Kbuild, some files are generated by chains of pattern/implicit rules.
For example, *.dtb.o files in drivers/of/unittest-data/Makefile are
generated by the chain of 3 pattern rules, like this:

  %.dts  ->  %.dtb  ->  %.dtb.S  ->  %.dtb.o

Here, %.dts is the real source, %.dtb.o is the final target.
%.dtb and %.dtb.S are called "intermediate files".

As GNU Make manual [1] says, intermediate files are treated differently
in two ways:

 (a) The first difference is what happens if the intermediate file does
   not exist. If an ordinary file 'b' does not exist, and make considers
   a target that depends on 'b', it invariably creates 'b' and then
   updates the target from 'b'. But if 'b' is an intermediate file, then
   make can leave well enough alone: it won't create 'b' unless one of
   its prerequisites is out of date. This means the target depending
   on 'b' won't be rebuilt either, unless there is some other reason
   to update that target: for example the target doesn't exist or a
   different prerequisite is newer than the target.

 (b) The second difference is that if make does create 'b' in order to
   update something else, it deletes 'b' later on after it is no longer
   needed. Therefore, an intermediate file which did not exist before
   make also does not exist after make. make reports the deletion to
   you by printing a 'rm' command showing which file it is deleting.

The combination of these is problematic for Kbuild because most of the
build rules depend on FORCE and the if_changed* macros really determine
if the target should be updated. So, all missing files, whether they
are intermediate or not, are always rebuilt.

To see the problem, delete ".SECONDARY:" from scripts/Kbuild.include,
and repeat this command:

  $ make allmodconfig drivers/of/unittest-data/

The intermediate files will be deleted, which results in rebuilding
intermediate and final objects in the next run of make.

In the old days, people suppressed (b) in inconsistent ways.
As commit 54a702f705 ("kbuild: mark $(targets) as .SECONDARY and
remove .PRECIOUS markers") noted, you should not use .PRECIOUS because
.PRECIOUS has the following behavior (c), which is not likely what you
want.

 (c) If make is killed or interrupted during the execution of their
   recipes, the target is not deleted. Also, the target is not deleted
   on error even if .DELETE_ON_ERROR is specified.

.SECONDARY is a much better way to disable (b), but a small problem
is that .SECONDARY enables (a), which gives a side-effect to $?;
prerequisites marked as .SECONDARY do not appear in $?. This is a
drawback for Kbuild.

I thought it was a bug and opened a bug report. As Paul, the GNU Make
maintainer, concluded in [2], this is not a bug.

A good news is that, GNU Make 4.4 added the perfect solution,
.NOTINTERMEDIATE, which cancels both (a) and (b).

For clarificaton, my understanding of .INTERMEDIATE, .SECONDARY,
.PRECIOUS and .NOTINTERMEDIATE are as follows:

                        (a)         (b)         (c)
  .INTERMEDIATE        enable      enable      disable
  .SECONDARY           enable      disable     disable
  .PRECIOUS            disable     disable     enable
  .NOTINTERMEDIATE     disable     disable     disable

However, GNU Make 4.4 has a bug for the global .NOTINTERMEDIATE. [3]
It was fixed by commit 6164608900ad ("[SV 63417] Ensure global
.NOTINTERMEDIATE disables all intermediates"), and will be available
in the next release of GNU Make.

The following is the gain for .NOTINTERMEDIATE:

  [Current Make]

      $ make allnoconfig vmlinux
          [ full build ]
      $ rm include/linux/device.h
      $ make vmlinux
        CALL    scripts/checksyscalls.sh

  Make does not notice the removal of <linux/device.h>.

  [Future Make]

      $ make-latest allnoconfig vmlinux
          [ full build ]
      $ rm include/linux/device.h
      $ make-latest vmlinux
        CC      arch/x86/kernel/asm-offsets.s
      In file included from ./include/linux/writeback.h:13,
                       from ./include/linux/memcontrol.h:22,
                       from ./include/linux/swap.h:9,
                       from ./include/linux/suspend.h:5,
                       from arch/x86/kernel/asm-offsets.c:13:
      ./include/linux/blk_types.h:11:10: fatal error: linux/device.h: No such file or directory
         11 | #include <linux/device.h>
            |          ^~~~~~~~~~~~~~~~
      compilation terminated.
      make-latest[1]: *** [scripts/Makefile.build:114: arch/x86/kernel/asm-offsets.s] Error 1
      make-latest: *** [Makefile:1282: prepare0] Error 2

  Make notices the removal of <linux/device.h>, and rebuilds objects
  that depended on <linux/device.h>. There exists a source file that
  includes <linux/device.h>, and it raises an error.

To see detailed background information, refer to commit 2d3b1b8f0d
("kbuild: drop $(wildcard $^) check in if_changed* for faster rebuild").

[1]: https://www.gnu.org/software/make/manual/make.html#Chained-Rules
[2]: https://savannah.gnu.org/bugs/?55532
[3]: https://savannah.gnu.org/bugs/?63417

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2022-12-13 22:29:10 +09:00
Masahiro Yamada
3122c84409 kconfig: refactor Makefile to reduce process forks
Refactor Makefile and use read-file macro. For Make >= 4.2, it can read
out a file by using the built-in function.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
2022-12-13 22:29:10 +09:00
Masahiro Yamada
6768fa4bcb kbuild: add read-file macro
Since GNU Make 4.2, $(file ...) supports the read operater '<', which
is useful to read a file without forking a new process. No warning is
shown even if the input file is missing.

For older Make versions, it falls back to the cat command.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
Reviewed-by: Alexander Lobakin <alexandr.lobakin@intel.com>
Tested-by: Alexander Lobakin <alexandr.lobakin@intel.com>
2022-12-13 22:29:10 +09:00
Masahiro Yamada
a5db80c65d kbuild: do not sort after reading modules.order
modules.order lists modules in the deterministic order (that is why
"modules order"), and there is no duplication in the list.

$(sort ) is pointless.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
2022-12-13 22:28:58 +09:00
Jiri Kosina
ab970ae1d6 Merge branch 'for-6.2/default-remove-cleanup' into for-linus
- removal of superfluous hid_hw_stop() calls for drivers with default
  .remove callback (Marcus Folkesson)
2022-12-13 14:28:47 +01:00
Jiri Kosina
cfd1f6c16f Merge branch 'for-6.2/apple' into for-linus
- new quirks for select Apple keyboards (Kerem Karabay, Aditya Garg)
2022-12-13 14:27:16 +01:00
Masahiro Yamada
fccb3d3eda kbuild: add test-{ge,gt,le,lt} macros
GNU Make 4.4 introduced $(intcmp ...), which is useful to compare two
integers without forking a new process.

Add test-{ge,gt,le,lt} macros, which work more efficiently with GNU
Make >= 4.4. For older Make versions, they fall back to the 'test'
shell command.

The first two parameters to $(intcmp ...) must not be empty. To avoid
the syntax error, I appended '0' to them. Fortunately, '00' is treated
as '0'. This is needed because CONFIG options may expand to an empty
string when the kernel configuration is not included.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Palmer Dabbelt <palmer@rivosinc.com> # RISC-V
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
2022-12-13 22:21:14 +09:00
Masahiro Yamada
e441273947 Documentation: raise minimum supported version of binutils to 2.25
Binutils 2.23 was released in 2012. Almost 10 years old.

We already require GCC 5.1, released in 2015.

Bump the binutils version to 2.25, which was released some months
before GCC 5.1.

With this applied, some subsystems can start to clean up code.
Examples:
  arch/arm/Kconfig.assembler
  arch/mips/vdso/Kconfig
  arch/powerpc/Makefile
  arch/x86/Kconfig.assembler

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
2022-12-13 22:21:14 +09:00
Christian Brauner
2c05bf3aa0 mnt_idmapping: move ima-only helpers to ima
The vfs{g,u}id_{gt,lt}_* helpers are currently not needed outside of
ima and we shouldn't incentivize people to use them by placing them into
the header. Let's just define them locally in the one file in ima where
they are used.

Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Christian Brauner (Microsoft) <brauner@kernel.org>
2022-12-13 12:28:51 +01:00
Sriram Yagnaraman
f9645abe42 netfilter: conntrack: document sctp timeouts
Exposed through sysctl, update documentation to describe sctp states and
their default timeouts.

Signed-off-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2022-12-13 12:25:45 +01:00
Li Qiong
ba57ee0944 ipvs: add a 'default' case in do_ip_vs_set_ctl()
It is better to return the default switch case with
'-EINVAL', in case new commands are added. otherwise,
return a uninitialized value of ret.

Signed-off-by: Li Qiong <liqiong@nfschina.com>
Reviewed-by: Simon Horman <horms@verge.net.au>
Acked-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2022-12-13 12:23:18 +01:00
Huacai Chen
1a34e7f2fc Merge tags 'acpi-6.2-rc1' and 'irq-core-2022-12-10' into loongarch-next
LoongArch architecture changes for 6.2 depend on the acpi and irqchip
changes to work, so merge them to create a base.
2022-12-13 19:19:41 +08:00
Yuezhang Mo
36955d368d exfat: reuse exfat_find_location() to simplify exfat_get_dentry_set()
In exfat_get_dentry_set(), part of the code is the same as
exfat_find_location(), reuse exfat_find_location() to simplify
exfat_get_dentry_set().

Code refinement, no functional changes.

Signed-off-by: Yuezhang Mo <Yuezhang.Mo@sony.com>
Reviewed-by: Andy Wu <Andy.Wu@sony.com>
Reviewed-by: Aoyama Wataru <wataru.aoyama@sony.com>
Reviewed-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
2022-12-13 20:17:16 +09:00
Yuezhang Mo
40306b4d1b exfat: fix overflow in sector and cluster conversion
According to the exFAT specification, there are at most 2^32-11
clusters in a volume. so using 'int' is not enough for cluster
index, the return value type of exfat_sector_to_cluster() should
be 'unsigned int'.

Signed-off-by: Yuezhang Mo <Yuezhang.Mo@sony.com>
Reviewed-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
2022-12-13 20:17:11 +09:00
Jakub Kicinski
7c4a6309e2 ipvs: fix type warning in do_div() on 32 bit
32 bit platforms without 64bit div generate the following warning:

net/netfilter/ipvs/ip_vs_est.c: In function 'ip_vs_est_calc_limits':
include/asm-generic/div64.h:222:35: warning: comparison of distinct pointer types lacks a cast
  222 |         (void)(((typeof((n)) *)0) == ((uint64_t *)0));  \
      |                                   ^~
net/netfilter/ipvs/ip_vs_est.c:694:17: note: in expansion of macro 'do_div'
  694 |                 do_div(val, loops);
      |                 ^~~~~~
include/asm-generic/div64.h:222:35: warning: comparison of distinct pointer types lacks a cast
  222 |         (void)(((typeof((n)) *)0) == ((uint64_t *)0));  \
      |                                   ^~
net/netfilter/ipvs/ip_vs_est.c:700:33: note: in expansion of macro 'do_div'
  700 |                                 do_div(val, min_est);
      |                                 ^~~~~~

first argument of do_div() should be unsigned. We can't just cast
as do_div() updates it as well, so we need an lval.
Make val unsigned in the first place, all paths check that the value
they assign to this variables are non-negative already.

Fixes: 705dd34440 ("ipvs: use kthreads for stats estimation")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/20221213032037.844517-1-kuba@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-12-13 10:44:02 +01:00
Paolo Abeni
b11919e1bb Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Merge in the left-over fixes before the net-next pull-request.

net/mptcp/subflow.c
  d3295fee3c ("mptcp: use proper req destructor for IPv6")
  36b122baf6 ("mptcp: add subflow_v(4,6)_send_synack()")

Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-12-13 09:49:29 +01:00
Alexandre Ghiti
71fc3621ef riscv: Fix P4D_SHIFT definition for 3-level page table mode
RISC-V kernels support 3,4,5-level page tables at runtime by folding
upper levels.

In case of a 3-level page table, PGDIR is folded into P4D which in turn
is folded into PUD: PGDIR_SHIFT value is correctly set to the same value
as PUD_SHIFT, but P4D_SHIFT is not, then any use of P4D_SHIFT will access
invalid address bits (all set to 1).

Fix this by dynamically defining P4D_SHIFT value, like we already do for
PGDIR_SHIFT.

Fixes: d10efa21a9 ("riscv: mm: Control p4d's folding by pgtable_l5_enabled")
Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Reviewed-by: Palmer Dabbelt <palmer@rivosinc.com>
Link: https://lore.kernel.org/r/20221201135128.1482189-2-alexghiti@rivosinc.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2022-12-12 22:38:18 -08:00
Andrew Jones
e923f4625e riscv: Apply a static assert to riscv_isa_ext_id
Add a static assert to ensure a RISCV_ISA_EXT_* enum is never
created with a value >= RISCV_ISA_EXT_MAX. We can do this by
putting RISCV_ISA_EXT_ID_MAX to more work. Before it was
redundant with RISCV_ISA_EXT_MAX and hence only used to
document the limit. Now it grows with the enum and is used to
check the limit.

Signed-off-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20221201113750.18021-1-ajones@ventanamicro.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2022-12-12 22:21:25 -08:00
Linus Torvalds
764822972d Merge tag 'nfsd-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux
Pull nfsd updates from Chuck Lever:
 "This release introduces support for the CB_RECALL_ANY operation. NFSD
  can send this operation to request that clients return any delegations
  they choose. The server uses this operation to handle low memory
  scenarios or indicate to a client when that client has reached the
  maximum number of delegations the server supports.

  The NFSv4.2 READ_PLUS operation has been simplified temporarily whilst
  support for sparse files in local filesystems and the VFS is improved.

  Two major data structure fixes appear in this release:

   - The nfs4_file hash table is replaced with a resizable hash table to
     reduce the latency of NFSv4 OPEN operations.

   - Reference counting in the NFSD filecache has been hardened against
     races.

  In furtherance of removing support for NFSv2 in a subsequent kernel
  release, a new Kconfig option enables server-side support for NFSv2 to
  be left out of a kernel build.

  MAINTAINERS has been updated to indicate that changes to fs/exportfs
  should go through the NFSD tree"

* tag 'nfsd-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux: (49 commits)
  NFSD: Avoid clashing function prototypes
  SUNRPC: Fix crasher in unwrap_integ_data()
  SUNRPC: Make the svc_authenticate tracepoint conditional
  NFSD: Use only RQ_DROPME to signal the need to drop a reply
  SUNRPC: Clean up xdr_write_pages()
  SUNRPC: Don't leak netobj memory when gss_read_proxy_verf() fails
  NFSD: add CB_RECALL_ANY tracepoints
  NFSD: add delegation reaper to react to low memory condition
  NFSD: add support for sending CB_RECALL_ANY
  NFSD: refactoring courtesy_client_reaper to a generic low memory shrinker
  trace: Relocate event helper files
  NFSD: pass range end to vfs_fsync_range() instead of count
  lockd: fix file selection in nlmsvc_cancel_blocked
  lockd: ensure we use the correct file descriptor when unlocking
  lockd: set missing fl_flags field when retrieving args
  NFSD: Use struct_size() helper in alloc_session()
  nfsd: return error if nfs4_setacl fails
  lockd: set other missing fields when unlocking files
  NFSD: Add an nfsd_file_fsync tracepoint
  sunrpc: svc: Remove an unused static function svc_ungetu32()
  ...
2022-12-12 20:54:39 -08:00
Linus Torvalds
149c51f876 Merge tag 'for-6.2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs updates from David Sterba:
 "This round there are a lot of cleanups and moved code so the diffstat
  looks huge, otherwise there are some nice performance improvements and
  an update to raid56 reliability.

  User visible features:

   - raid56 reliability vs performance trade off:
      - fix destructive RMW for raid5 data (raid6 still needs work): do
        full checksum verification for all data during RMW cycle, this
        should prevent rewriting potentially corrupted data without
        notice
      - stripes are cached in memory which should reduce the performance
        impact but still can hurt some workloads
      - checksums are verified after repair again
      - this is the last option without introducing additional features
        (write intent bitmap, journal, another tree), the extra checksum
        read/verification was supposed to be avoided by the original
        implementation exactly for performance reasons but that caused
        all the reliability problems

   - discard=async by default for devices that support it

   - implement emergency flush reserve to avoid almost all unnecessary
     transaction aborts due to ENOSPC in cases where there are too many
     delayed refs or delayed allocation

   - skip block group synchronization if there's no change in used
     bytes, can reduce transaction commit count for some workloads

  Performance improvements:

   - fiemap and lseek:
      - overall speedup due to skipping unnecessary or duplicate
        searches (-40% run time)
      - cache some data structures and sharedness of extents (-30% run
        time)

   - send:
      - faster backref resolution when finding clones
      - cached leaf to root mapping for faster backref walking
      - improved clone/sharing detection
      - overall run time improvements (-70%)

  Core:

   - module initialization converted to a table of function pointers run
     in a sequence

   - preparation for fscrypt, extend passing file names across calls,
     dir item can store encryption status

   - raid56 updates:
      - more accurate error tracking of sectors within stripe
      - simplify recovery path and remove dedicated endio worker kthread
      - simplify scrub call paths
      - refactoring to support the extra data checksum verification
        during RMW cycle

   - tree block parentness checks consolidated and done at metadata read
     time

   - improved error handling

   - cleanups:
      - move a lot of code for better synchronization between kernel and
        user space sources, split big files
      - enum cleanups
      - GFP flag cleanups
      - header file cleanups, prototypes, dependencies
      - redundant parameter cleanups
      - inline extent handling simplifications
      - inode parameter conversion
      - data structure cleanups, reductions, renames, merges"

* tag 'for-6.2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (249 commits)
  btrfs: print transaction aborted messages with an error level
  btrfs: sync some cleanups from progs into uapi/btrfs.h
  btrfs: do not BUG_ON() on ENOMEM when dropping extent items for a range
  btrfs: fix extent map use-after-free when handling missing device in read_one_chunk
  btrfs: remove outdated logic from overwrite_item() and add assertion
  btrfs: unify overwrite_item() and do_overwrite_item()
  btrfs: replace strncpy() with strscpy()
  btrfs: fix uninitialized variable in find_first_clear_extent_bit
  btrfs: fix uninitialized parent in insert_state
  btrfs: add might_sleep() annotations
  btrfs: add stack helpers for a few btrfs items
  btrfs: add nr_global_roots to the super block definition
  btrfs: remove BTRFS_LEAF_DATA_OFFSET
  btrfs: add helpers for manipulating leaf items and data
  btrfs: add eb to btrfs_node_key_ptr_offset
  btrfs: pass the extent buffer for the btrfs_item_nr helpers
  btrfs: move the csum helpers into ctree.h
  btrfs: move eb offset helpers into extent_io.h
  btrfs: move file_extent_item helpers into file-item.h
  btrfs: move leaf_data_end into ctree.c
  ...
2022-12-12 20:47:51 -08:00
Linus Torvalds
97971df811 Merge tag 'dlm-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm
Pull dlm updates from David Teigland:
 "These patches include the usual cleanups and minor fixes, the removal
  of code that is no longer needed due to recent improvements, and
  improvements to processing large volumes of messages during heavy
  locking activity.

  Summary:

   - Misc code cleanup

   - Fix a couple of socket handling bugs: a double release on an error
     path and a data-ready race in an accept loop

   - Remove code for resending dir-remove messages. This code is no
     longer needed since the midcomms layer now ensures the messages are
     resent if needed

   - Add tracepoints for dlm messages

   - Improve callback queueing by replacing the fixed array with a list

   - Simplify the handling of a remove message followed by a lookup
     message by sending both without releasing a spinlock in between

   - Improve the concurrency of sending and receiving messages by
     holding locks for a shorter time, and changing how workqueues are
     used

   - Remove old code for shutting down sockets, which is no longer
     needed with the reliable connection handling that was recently
     added"

* tag 'dlm-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm: (37 commits)
  fs: dlm: fix building without lockdep
  fs: dlm: parallelize lowcomms socket handling
  fs: dlm: don't init error value
  fs: dlm: use saved sk_error_report()
  fs: dlm: use sock2con without checking null
  fs: dlm: remove dlm_node_addrs lookup list
  fs: dlm: don't put dlm_local_addrs on heap
  fs: dlm: cleanup listen sock handling
  fs: dlm: remove socket shutdown handling
  fs: dlm: use listen sock as dlm running indicator
  fs: dlm: use list_first_entry_or_null
  fs: dlm: remove twice INIT_WORK
  fs: dlm: add midcomms init/start functions
  fs: dlm: add dst nodeid for msg tracing
  fs: dlm: rename seq to h_seq for msg tracing
  fs: dlm: rename DLM_IFL_NEED_SCHED to DLM_IFL_CB_PENDING
  fs: dlm: ast do WARN_ON_ONCE() on hotpath
  fs: dlm: drop lkb ref in bug case
  fs: dlm: avoid false-positive checker warning
  fs: dlm: use WARN_ON_ONCE() instead of WARN_ON()
  ...
2022-12-12 20:41:50 -08:00
Linus Torvalds
56c003e4db Merge tag 'jfs-6.2' of https://github.com/kleikamp/linux-shaggy
Pull jfs updates from David Kleikamp:
 "Assorted JFS fixes for 6.2"

* tag 'jfs-6.2' of https://github.com/kleikamp/linux-shaggy:
  jfs: makes diUnmount/diMount in jfs_mount_rw atomic
  jfs: Fix a typo in function jfs_umount
  fs: jfs: fix shift-out-of-bounds in dbDiscardAG
  jfs: Fix fortify moan in symlink
  jfs: remove redundant assignments to ipaimap and ipaimap2
  jfs: remove unused declarations for jfs
  fs/jfs/jfs_xattr.h: Fix spelling typo in comment
  MAINTAINERS: git://github -> https://github.com for kleikamp
  fs/jfs: replace ternary operator with min_t()
  fs: jfs: fix shift-out-of-bounds in dbAllocAG
2022-12-12 20:38:28 -08:00
Linus Torvalds
cda6a60acc Merge tag 'fixes_for_v6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull udf and ext2 fixes from Jan Kara:

 - a couple of smaller cleanups and fixes for ext2

 - fixes of a data corruption issues in udf when handling holes and
   preallocation extents

 - fixes and cleanups of several smaller issues in udf

 - add maintainer entry for isofs

* tag 'fixes_for_v6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  udf: Fix extending file within last block
  udf: Discard preallocation before extending file with a hole
  udf: Do not bother looking for prealloc extents if i_lenExtents matches i_size
  udf: Fix preallocation discarding at indirect extent boundary
  udf: Increase UDF_MAX_READ_VERSION to 0x0260
  fs/ext2: Fix code indentation
  ext2: unbugger ext2_empty_dir()
  udf: remove ->writepage
  ext2: remove ->writepage
  ext2: Don't flush page immediately for DIRSYNC directories
  ext2: Fix some kernel-doc warnings
  maintainers: Add ISOFS entry
  udf: Avoid double brelse() in udf_rename()
  fs: udf: Optimize udf_free_in_core_inode and udf_find_fileset function
2022-12-12 20:32:50 -08:00
Linus Torvalds
07d7a4d696 Merge tag 'fs.xattr.simple.noaudit.v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmapping
Pull xattr audit fix from Seth Forshee:
 "This is a single patch to remove auditing of the capability check in
  simple_xattr_list().

  This check is done to check whether trusted xattrs should be included
  by listxattr(2). SELinux will normally log a denial when capable() is
  called and the task's SELinux context doesn't have the corresponding
  capability permission allowed, which can end up spamming the log.

  Since a failed check here cannot be used to infer malicious intent,
  auditing is of no real value, and it makes sense to stop auditing the
  capability check"

* tag 'fs.xattr.simple.noaudit.v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmapping:
  fs: don't audit the capability check in simple_xattr_list()
2022-12-12 20:29:45 -08:00
Linus Torvalds
6e8948a063 Merge tag 'fs.idmapped.squashfs.v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmapping
Pull squashfs update from Seth Forshee:
 "This is a simple patch to enable idmapped mounts for squashfs.

  All functionality squashfs needs to support idmapped mounts is already
  implemented in generic VFS code, so all that is needed is to set
  FS_ALLOW_IDMAP in fs_flags"

* tag 'fs.idmapped.squashfs.v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmapping:
  squashfs: enable idmapped mounts
2022-12-12 20:24:51 -08:00
Linus Torvalds
043930b1c8 Merge tag 'fuse-update-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse
Pull fuse update from Miklos Szeredi:

 - Allow some write requests to proceed in parallel

 - Fix a performance problem with allow_sys_admin_access

 - Add a special kind of invalidation that doesn't immediately purge
   submounts

 - On revalidation treat the target of rename(RENAME_NOREPLACE) the same
   as open(O_EXCL)

 - Use type safe helpers for some mnt_userns transformations

* tag 'fuse-update-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
  fuse: Rearrange fuse_allow_current_process checks
  fuse: allow non-extending parallel direct writes on the same file
  fuse: remove the unneeded result variable
  fuse: port to vfs{g,u}id_t and associated helpers
  fuse: Remove user_ns check for FUSE_DEV_IOC_CLONE
  fuse: always revalidate rename target dentry
  fuse: add "expire only" mode to FUSE_NOTIFY_INVAL_ENTRY
  fs/fuse: Replace kmap() with kmap_local_page()
2022-12-12 20:22:09 -08:00
Linus Torvalds
6df7cc2268 Merge tag 'ovl-update-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs
Pull overlayfs update from Miklos Szeredi:

 - Fix a couple of bugs found by syzbot

 - Don't ingore some open flags set by fcntl(F_SETFL)

 - Fix failure to create a hard link in certain cases

 - Use type safe helpers for some mnt_userns transformations

 - Improve performance of mount

 - Misc cleanups

* tag 'ovl-update-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs:
  ovl: Kconfig: Fix spelling mistake "undelying" -> "underlying"
  ovl: use inode instead of dentry where possible
  ovl: Add comment on upperredirect reassignment
  ovl: use plain list filler in indexdir and workdir cleanup
  ovl: do not reconnect upper index records in ovl_indexdir_cleanup()
  ovl: fix comment typos
  ovl: port to vfs{g,u}id_t and associated helpers
  ovl: Use ovl mounter's fsuid and fsgid in ovl_link()
  ovl: Use "buf" flexible array for memcpy() destination
  ovl: update ->f_iocb_flags when ovl_change_flags() modifies ->f_flags
  ovl: fix use inode directly in rcu-walk mode
2022-12-12 20:18:26 -08:00
Linus Torvalds
4a6bff1187 Merge tag 'erofs-for-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs
Pull erofs updates from Gao Xiang:
 "In this cycle, large folios are now enabled in the iomap/fscache mode
  for uncompressed files first. In order to do that, we've also cleaned
  up better interfaces between erofs and fscache, which are acked by
  fscache/netfs folks and included in this pull request.

  Other than that, there are random fixes around erofs over fscache and
  crafted images by syzbot, minor cleanups and documentation updates.

  Summary:

   - Enable large folios for iomap/fscache mode

   - Avoid sysfs warning due to mounting twice with the same fsid and
     domain_id in fscache mode

   - Refine fscache interface among erofs, fscache, and cachefiles

   - Use kmap_local_page() only for metabuf

   - Fixes around crafted images found by syzbot

   - Minor cleanups and documentation updates"

* tag 'erofs-for-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs:
  erofs: validate the extent length for uncompressed pclusters
  erofs: fix missing unmap if z_erofs_get_extent_compressedlen() fails
  erofs: Fix pcluster memleak when its block address is zero
  erofs: use kmap_local_page() only for erofs_bread()
  erofs: enable large folios for fscache mode
  erofs: support large folios for fscache mode
  erofs: switch to prepare_ondemand_read() in fscache mode
  fscache,cachefiles: add prepare_ondemand_read() callback
  erofs: clean up cached I/O strategies
  erofs: update documentation
  erofs: check the uniqueness of fsid in shared domain in advance
  erofs: enable large folios for iomap mode
2022-12-12 20:14:04 -08:00
Linus Torvalds
ad0d9da164 Merge tag 'fsverity-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt
Pull fsverity updates from Eric Biggers:
 "The main change this cycle is to stop using the PG_error flag to track
  verity failures, and instead just track failures at the bio level.
  This follows a similar fscrypt change that went into 6.1, and it is a
  step towards freeing up PG_error for other uses.

  There's also one other small cleanup"

* tag 'fsverity-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt:
  fsverity: simplify fsverity_get_digest()
  fsverity: stop using PG_error to track error status
2022-12-12 20:06:35 -08:00
Linus Torvalds
8129bac60f Merge tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt
Pull fscrypt updates from Eric Biggers:
 "This release adds SM4 encryption support, contributed by Tianjia
  Zhang. SM4 is a Chinese block cipher that is an alternative to AES.

  I recommend against using SM4, but (according to Tianjia) some people
  are being required to use it. Since SM4 has been turning up in many
  other places (crypto API, wireless, TLS, OpenSSL, ARMv8 CPUs, etc.),
  it hasn't been very controversial, and some people have to use it, I
  don't think it would be fair for me to reject this optional feature.

  Besides the above, there are a couple cleanups"

* tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt:
  fscrypt: add additional documentation for SM4 support
  fscrypt: remove unused Speck definitions
  fscrypt: Add SM4 XTS/CTS symmetric algorithm support
  blk-crypto: Add support for SM4-XTS blk crypto mode
  fscrypt: add comment for fscrypt_valid_enc_modes_v1()
  fscrypt: pass super_block to fscrypt_put_master_key_activeref()
2022-12-12 20:03:50 -08:00