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Linux kernel
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Pull powerpc fixes from Michael Ellerman:
- Ensure we never emit lwarx with EH=1 on 32-bit, because some 32-bit
CPUs trap on it rather than ignoring it as they should.
- Fix ftrace when building with clang, which was broken by some
refactoring.
- A couple of other minor fixes.
Thanks to Christophe Leroy, Naveen N. Rao, Nick Desaulniers, Ondrej
Mosnacek, Pali Rohár, Russell Currey, and Segher Boessenkool.
* tag 'powerpc-6.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/kexec: Fix build failure from uninitialised variable
powerpc/ppc-opcode: Fix PPC_RAW_TW()
powerpc64/ftrace: Fix ftrace for clang builds
powerpc: Make eh value more explicit when using lwarx
powerpc: Don't hide eh field of lwarx behind a macro
powerpc: Fix eh field when calling lwarx on PPC32
Pull /proc/mounts fix from Al Viro:
"Fix for /proc/mounts escaping - escape the '#' character too"
* tag 'pull-work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
vfs: escape hash as well
clang 14 won't build because ret is uninitialised and can be returned if
both prop and fdtprop are NULL. Drop the ret variable and return an
error in that failure case.
Fixes: b1fc44eaa9ba ("pseries/iommu/ddw: Fix kdump to work in absence of ibm,dma-window")
Suggested-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Russell Currey <ruscur@russell.cc>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220810054331.373761-1-ruscur@russell.cc
Pull more cifs updates from Steve French:
- two fixes for stable, one for a lock length miscalculation, and
another fixes a lease break timeout bug
- improvement to handle leases, allows the close timeout to be
configured more safely
- five restructuring/cleanup patches
* tag '5.20-rc-smb3-client-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6:
cifs: Do not access tcon->cfids->cfid directly from is_path_accessible
cifs: Add constructor/destructors for tcon->cfid
SMB3: fix lease break timeout when multiple deferred close handles for the same file.
smb3: allow deferred close timeout to be configurable
cifs: Do not use tcon->cfid directly, use the cfid we get from open_cached_dir
cifs: Move cached-dir functions into a separate file
cifs: Remove {cifs,nfs}_fscache_release_page()
cifs: fix lock length calculation
When a filesystem is mounted with a name that starts with a #:
# mount '#name' /mnt/bad -t tmpfs
this will cause the entry to look like this (leading space added so
that git does not strip it out):
#name /mnt/bad tmpfs rw,seclabel,relatime,inode64 0 0
This breaks getmntent and any code that aims to parse fstab as well as
/proc/mounts with the same logic since they need to strip leading spaces
or skip over comment lines, due to which they report incorrect output or
skip over the line respectively.
Solve this by translating the hash character into its octal encoding
equivalent so that applications can decode the name correctly.
Signed-off-by: Siddhesh Poyarekar <siddhesh@gotplt.org>
Signed-off-by: Ian Kent <raven@themaw.net>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
PPC_RAW_TW() is erroneously defined with base code 0x7f000008
instead of 0x7c000008.
That's invisible because its only user is PPC_RAW_TRAP() which is
0x7fe00008, but fix it anyway to avoid any risk of future bug.
Fixes: d00d762daf12 ("powerpc/ppc-opcode: Define and use PPC_RAW_TRAP() and PPC_RAW_TW()")
Reported-by: Naveen N. Rao <naveen.n.rao@linux.ibm.com>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Reviewed-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/eca9251f1e1f82c4c46ec6380ddb28356ab3fdfe.1659527244.git.christophe.leroy@csgroup.eu
Enable multipage folio support for the afs filesystem.
Support has already been implemented in netfslib, fscache and cachefiles
and in most of afs, but I've waited for Matthew Wilcox's latest folio
changes.
Note that it does require a change to afs_write_begin() to return the
correct subpage. This is a "temporary" change as we're working on
getting rid of the need for ->write_begin() and ->write_end()
completely, at least as far as network filesystems are concerned - but
it doesn't prevent afs from making use of the capability.
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Tested-by: kafs-testing@auristor.com
Cc: Marc Dionne <marc.dionne@auristor.com>
Cc: linux-afs@lists.infradead.org
Link: https://lore.kernel.org/lkml/2274528.1645833226@warthog.procyon.org.uk/
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
cfids will soon keep a list of cached fids so we should not access this
directly from outside of cached_dir.c
Reviewed-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Clang doesn't support -mprofile-kernel ABI, so guard the checks against
CONFIG_DYNAMIC_FTRACE_WITH_REGS, rather than the elf ABI version.
Fixes: 23b44fc248f4 ("powerpc/ftrace: Make __ftrace_make_{nop/call}() common to PPC32 and PPC64")
Cc: stable@vger.kernel.org # v5.19+
Reported-by: Nick Desaulniers <ndesaulniers@google.com>
Reported-by: Ondrej Mosnacek <omosnacek@gmail.com>
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Tested-by: Ondrej Mosnacek <omosnacek@gmail.com>
Acked-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://github.com/llvm/llvm-project/issues/57031
Link: https://github.com/ClangBuiltLinux/linux/issues/1682
Link: https://lore.kernel.org/r/20220809095907.418764-1-naveen.n.rao@linux.vnet.ibm.com
Pull timer fixes from Ingo Molnar:
"Misc timer fixes:
- fix a potential use-after-free bug in posix timers
- correct a prototype
- address a build warning"
* tag 'timers-urgent-2022-08-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
posix-cpu-timers: Cleanup CPU timers before freeing them during exec
time: Correct the prototype of ns_to_kernel_old_timeval and ns_to_timespec64
posix-timers: Make do_clock_gettime() static
and move the structure definitions into cached_dir.h
Reviewed-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Pull x86 platform driver fixes from Hans de Goede:
"Highlights:
- Fix hp-wmi regression on HP Omen laptops introduced in 5.18
- Several hardware-id additions
- A couple of other tiny fixes"
* tag 'platform-drivers-x86-v5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
platform/x86/intel: hid: Add Surface Go to VGBS allow list
platform/x86: hp-wmi: Use zero insize parameter only when supported
platform/x86: hp-wmi: Resolve WMI query failures on some devices
platform/x86: gigabyte-wmi: Add support for B450M DS3H-CF
platform/x86: gigabyte-wmi: Add Z690M AORUS ELITE AX DDR4 support
platform/x86: barco-p50-gpio: Add check for platform_driver_register
platform/x86/intel: pmc: Support Intel Raptorlake P
platform/x86/intel: Fix pmt_crashlog array reference
platform/mellanox: Add static in struct declaration.
platform/mellanox: Spelling s/platfom/platform/
Just like the first patch of this series, define a local 'eh' in order
to make the code clearer.
And IS_ENABLED() returns either 1 or 0 so no need to do
IS_ENABLED(CONFIG_PPC64) ? 1 : 0.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
[mpe: Use symbolic names, use 'n' constraint per Segher]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/629befaa2d05e2922346e58a383886510d6af55a.1659430931.git.christophe.leroy@csgroup.eu
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