In preparation to add helper function to deduce the num_devices with
replace running, use assert instead of BUG_ON or WARN_ON. The number of
devices would not normally drop to 0 due to other checks so the assert
is sufficient.
Signed-off-by: Anand Jain <anand.jain@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.com>
[ update changelog, adjust the assert condition ]
Signed-off-by: David Sterba <dsterba@suse.com>
Kfree has taken the NULL pointer into account. So remove the check
before kfree.
The issue is detected with the help of Coccinelle.
Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
As we're going to return right after the call, it's not necessary to get
update the new write_lock_level from unlock_up.
Signed-off-by: Liu Bo <bo.liu@linux.alibaba.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
There are two members in struct btrfs_root which indicate root's
objectid: objectid and root_key.objectid.
They are both set to the same value in __setup_root():
static void __setup_root(struct btrfs_root *root,
struct btrfs_fs_info *fs_info,
u64 objectid)
{
...
root->objectid = objectid;
...
root->root_key.objectid = objecitd;
...
}
and not changed to other value after initialization.
grep in btrfs directory shows both are used in many places:
$ grep -rI "root->root_key.objectid" | wc -l
133
$ grep -rI "root->objectid" | wc -l
55
(4.17, inc. some noise)
It is confusing to have two similar variable names and it seems
that there is no rule about which should be used in a certain case.
Since ->root_key itself is needed for tree reloc tree, let's remove
'objecitd' member and unify code to use ->root_key.objectid in all places.
Signed-off-by: Misono Tomohiro <misono.tomohiro@jp.fujitsu.com>
Reviewed-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Since ret must be 0 here, don't have to return. No functional change
and code readability is not hurt.
Signed-off-by: Lu Fengqi <lufq.fnst@cn.fujitsu.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
All callers pass the root tree of dir, we can push that down to the
function itself.
Signed-off-by: Lu Fengqi <lufq.fnst@cn.fujitsu.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Using true and false here is closer to the expected semantic than using
0 and 1. No functional change.
Signed-off-by: Lu Fengqi <lufq.fnst@cn.fujitsu.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Only when send_in_progress, we have to do something different such as
btrfs_warn() and return -EPERM. Therefore, we could check
send_in_progress first and process error handling, after the
root_item_lock has been got.
Just for better readability. No functional change.
Signed-off-by: Lu Fengqi <lufq.fnst@cn.fujitsu.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
* Fix a livelock in dax_layout_busy_page() present since v4.18. The
lockup triggers when truncating an actively mapped huge page out of a
mapping pinned for direct-I/O.
* Fix mprotect() clobbers of _PAGE_DEVMAP. Broken since v4.5 mprotect()
clears this flag that is needed to communicate the liveness of device
pages to the get_user_pages() path.
-----BEGIN PGP SIGNATURE-----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=VXnU
-----END PGP SIGNATURE-----
Merge tag 'libnvdimm-fixes-4.19-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Dan writes:
"libnvdimm/dax 4.19-rc8
* Fix a livelock in dax_layout_busy_page() present since v4.18. The
lockup triggers when truncating an actively mapped huge page out of
a mapping pinned for direct-I/O.
* Fix mprotect() clobbers of _PAGE_DEVMAP. Broken since v4.5
mprotect() clears this flag that is needed to communicate the
liveness of device pages to the get_user_pages() path."
* tag 'libnvdimm-fixes-4.19-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
mm: Preserve _PAGE_DEVMAP across mprotect() calls
filesystem-dax: Fix dax_layout_busy_page() livelock
Wolfram writes:
"i2c fix for 4.19:
I2C has one documentation bugfix for something we changed during the
v4.19 cycle"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: Fix kerneldoc for renamed i2c dma put function
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)
iQEcBAABAgAGBQJbwb17AAoJEL/70l94x66D7SwH+wbyl7DK6vH37m+seZDVWCjd
sLs2ZVf7jqhU4nMwq7SJkUL1N1SGzqj5M2XLcWye6m0tWziTktreAsx9PgdtIuOS
42RmO7G3Tt8JbTu6+Ykysjp5JDaNN4RAjynMsn+G53vBw/QHFSW5xsPE2H/67qi7
83n4IlgFcwgP0mwg5K700J2GH2NWzPU9c0nWHK3HDZORoiF88w7+1bjrDMgfyZMi
K5ZCLshE1Fg5fqHlpQjETqIV1bmd0p5BnUend+8yEUqrb/z16IoNALQMBtW7xFCX
oA6dkAn0pCSyS6kqX+Ut9glrKcN2cmXHvcnT7qIUYvw6Yk3egHH1Gn4uB3cKTGk=
=x9gh
-----END PGP SIGNATURE-----
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Paolo writes:
"KVM fixes for 4.19-rc8
Leftover bugfixes."
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: vmx: hyper-v: don't pass EPT configuration info to vmx_hv_remote_flush_tlb()
KVM: x86: support CONFIG_KVM_AMD=y with CONFIG_CRYPTO_DEV_CCP_DD=m
ARM: KVM: Correctly order SGI register entries in the cp15 array
I'm observing random crashes in multi-vCPU L2 guests running on KVM on
Hyper-V. I bisected the issue to the commit 877ad952be ("KVM: vmx: Add
tlb_remote_flush callback support"). Hyper-V TLFS states:
"AddressSpace specifies an address space ID (an EPT PML4 table pointer)"
So apparently, Hyper-V doesn't expect us to pass naked EPTP, only PML4
pointer should be used. Strip off EPT configuration information before
calling into vmx_hv_remote_flush_tlb().
Fixes: 877ad952be ("KVM: vmx: Add tlb_remote_flush callback support")
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
ubifs_assert() is not WARN_ON(), so we have to invert
the checks.
Randy faced this warning with UBIFS being a module, since
most users use UBIFS as builtin because UBIFS is the rootfs
nobody noticed so far. :-(
Including me.
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Fixes: 54169ddd38 ("ubifs: Turn two ubifs_assert() into a WARN_ON()")
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
On non-preempt kernels this loop can take a long time (more than 50 ticks)
processing through entries.
Link: http://lkml.kernel.org/r/20181010172623.57033-1-khazhy@google.com
Signed-off-by: Khazhismel Kumykov <khazhy@google.com>
Acked-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Inside set_pmd_migration_entry() we are holding page table locks and thus
we can not sleep so we can not call invalidate_range_start/end()
So remove call to mmu_notifier_invalidate_range_start/end() because they
are call inside the function calling set_pmd_migration_entry() (see
try_to_unmap_one()).
Link: http://lkml.kernel.org/r/20181012181056.7864-1-jglisse@redhat.com
Signed-off-by: Jérôme Glisse <jglisse@redhat.com>
Reported-by: Andrea Arcangeli <aarcange@redhat.com>
Reviewed-by: Zi Yan <zi.yan@cs.rutgers.edu>
Acked-by: Michal Hocko <mhocko@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Anshuman Khandual <khandual@linux.vnet.ibm.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: David Nellans <dnellans@nvidia.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Daniel Micay reports that attempting to use MAP_FIXED_NOREPLACE in an
application causes that application to randomly crash. The existing check
for handling MAP_FIXED_NOREPLACE looks up the first VMA that either
overlaps or follows the requested region, and then bails out if that VMA
overlaps *the start* of the requested region. It does not bail out if the
VMA only overlaps another part of the requested region.
Fix it by checking that the found VMA only starts at or after the end of
the requested region, in which case there is no overlap.
Test case:
user@debian:~$ cat mmap_fixed_simple.c
#include <sys/mman.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#ifndef MAP_FIXED_NOREPLACE
#define MAP_FIXED_NOREPLACE 0x100000
#endif
int main(void) {
char *p;
errno = 0;
p = mmap((void*)0x10001000, 0x4000, PROT_NONE,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_FIXED_NOREPLACE, -1, 0);
printf("p1=%p err=%m\n", p);
errno = 0;
p = mmap((void*)0x10000000, 0x2000, PROT_READ,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_FIXED_NOREPLACE, -1, 0);
printf("p2=%p err=%m\n", p);
char cmd[100];
sprintf(cmd, "cat /proc/%d/maps", getpid());
system(cmd);
return 0;
}
user@debian:~$ gcc -o mmap_fixed_simple mmap_fixed_simple.c
user@debian:~$ ./mmap_fixed_simple
p1=0x10001000 err=Success
p2=0x10000000 err=Success
10000000-10002000 r--p 00000000 00:00 0
10002000-10005000 ---p 00000000 00:00 0
564a9a06f000-564a9a070000 r-xp 00000000 fe:01 264004
/home/user/mmap_fixed_simple
564a9a26f000-564a9a270000 r--p 00000000 fe:01 264004
/home/user/mmap_fixed_simple
564a9a270000-564a9a271000 rw-p 00001000 fe:01 264004
/home/user/mmap_fixed_simple
564a9a54a000-564a9a56b000 rw-p 00000000 00:00 0 [heap]
7f8eba447000-7f8eba5dc000 r-xp 00000000 fe:01 405885
/lib/x86_64-linux-gnu/libc-2.24.so
7f8eba5dc000-7f8eba7dc000 ---p 00195000 fe:01 405885
/lib/x86_64-linux-gnu/libc-2.24.so
7f8eba7dc000-7f8eba7e0000 r--p 00195000 fe:01 405885
/lib/x86_64-linux-gnu/libc-2.24.so
7f8eba7e0000-7f8eba7e2000 rw-p 00199000 fe:01 405885
/lib/x86_64-linux-gnu/libc-2.24.so
7f8eba7e2000-7f8eba7e6000 rw-p 00000000 00:00 0
7f8eba7e6000-7f8eba809000 r-xp 00000000 fe:01 405876
/lib/x86_64-linux-gnu/ld-2.24.so
7f8eba9e9000-7f8eba9eb000 rw-p 00000000 00:00 0
7f8ebaa06000-7f8ebaa09000 rw-p 00000000 00:00 0
7f8ebaa09000-7f8ebaa0a000 r--p 00023000 fe:01 405876
/lib/x86_64-linux-gnu/ld-2.24.so
7f8ebaa0a000-7f8ebaa0b000 rw-p 00024000 fe:01 405876
/lib/x86_64-linux-gnu/ld-2.24.so
7f8ebaa0b000-7f8ebaa0c000 rw-p 00000000 00:00 0
7ffcc99fa000-7ffcc9a1b000 rw-p 00000000 00:00 0 [stack]
7ffcc9b44000-7ffcc9b47000 r--p 00000000 00:00 0 [vvar]
7ffcc9b47000-7ffcc9b49000 r-xp 00000000 00:00 0 [vdso]
ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0
[vsyscall]
user@debian:~$ uname -a
Linux debian 4.19.0-rc6+ #181 SMP Wed Oct 3 23:43:42 CEST 2018 x86_64 GNU/Linux
user@debian:~$
As you can see, the first page of the mapping at 0x10001000 was clobbered.
Link: http://lkml.kernel.org/r/20181010152736.99475-1-jannh@google.com
Fixes: a4ff8e8620 ("mm: introduce MAP_FIXED_NOREPLACE")
Signed-off-by: Jann Horn <jannh@google.com>
Reported-by: Daniel Micay <danielmicay@gmail.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: John Hubbard <jhubbard@nvidia.com>
Acked-by: Kees Cook <keescook@chromium.org>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fix the following compile warning:
fs/ocfs2/dlmglue.c:99:30: warning: lockdep_keys defined but not used [-Wunused-variable]
static struct lock_class_key lockdep_keys[OCFS2_NUM_LOCK_TYPES];
Link: http://lkml.kernel.org/r/1536938148-32110-1-git-send-email-zhongjiang@huawei.com
Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-----BEGIN PGP SIGNATURE-----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=UGgm
-----END PGP SIGNATURE-----
Merge tag 'for-linus-20181012' of git://git.kernel.dk/linux-block
Jens writes:
"block fix for 4.19-rc
Just a single fix that should go in, fixing a regression introduced
in the blk-wbt code."
* tag 'for-linus-20181012' of git://git.kernel.dk/linux-block:
blk-wbt: wake up all when we scale up, not down
- Reject CHAIN PMU events when they are not part of a 64-bit counter
- Fix WARN_ON_ONCE() that triggers for reserved regions that don't
correspond to mapped memory
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
iQEcBAABCgAGBQJbwLRMAAoJELescNyEwWM0vvYIAIzR2zOm3dIXXP+ZF16jcJJn
tfHtAgzPDvflnnVYc0r1/vAfD7yfF7kpAVZ/xe9hwVfBeXkBxF3oIDSVOdPxRQtW
woZ/Ld6OaN3A2Ev2lBZodJvgBdUUYvXJHAgfFSWfEz9cTTmCF87npRpLj4WEJgXv
CGaC6ffX4eWHGHUE6hdNLNOdTeLDSfvXjBkVSL1uAodE62fvJRv5DzlGNCMO9OyB
7cAt4uD3u57C3b0IObSNeoYrtABbBw+2wpMHcqZ1zrgUOEyZa7bhJtNgKv5b9Krn
LUEW5+clpNG+dsha2gFBekbgaudGYYyW1chYSXDquVmiyemU3oa+Vgc8XeFGcZ8=
=K6MO
-----END PGP SIGNATURE-----
Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Will writes:
"More arm64 fixes
- Reject CHAIN PMU events when they are not part of a 64-bit counter
- Fix WARN_ON_ONCE() that triggers for reserved regions that don't
correspond to mapped memory"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: perf: Reject stand-alone CHAIN events for PMUv3
arm64: Fix /proc/iomem for reserved but not memory regions
Two last minute bugfixes, both for NXP platforms:
* The Layerscape 'qbman' infrastructure suffers from probe ordering
bugs in some configurations, a two-patch series adds a hotfix for
this. 4.20 will have a longer set of patches to rework it.
* The old imx53-qsb board regressed in 4.19 after the addition
of cpufreq support, adding a set of explicit operating points
fixes this.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=WY74
-----END PGP SIGNATURE-----
Merge tag 'armsoc-fixes-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Arnd writes:
"ARM: SoC fixes for 4.19
Two last minute bugfixes, both for NXP platforms:
* The Layerscape 'qbman' infrastructure suffers from probe ordering
bugs in some configurations, a two-patch series adds a hotfix for
this. 4.20 will have a longer set of patches to rework it.
* The old imx53-qsb board regressed in 4.19 after the addition
of cpufreq support, adding a set of explicit operating points
fixes this."
* tag 'armsoc-fixes-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
soc: fsl: qman_portals: defer probe after qman's probe
soc: fsl: qbman: add APIs to retrieve the probing status
ARM: dts: imx53-qsb: disable 1.2GHz OPP
Fix a leak of afs_server structs. The routine that installs them in the
various lookup lists and trees gets a ref on leaving the function, whether
it added the server or a server already exists. It shouldn't increment
the refcount if it added the server.
The effect of this that "rmmod kafs" will hang waiting for the leaked
server to become unused.
Fixes: d2ddc776a4 ("afs: Overhaul volume and server record caching and fileserver rotation")
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Just drop the "linux" part of the path, it was never correct.
Reported-by: Joe Perches <joe@perches.com>
Fixes: 256ac03750 ("dt-bindings: document devicetree bindings for mux-controllers and gpio-mux")
Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The file is GPL v2 or later.
Acked-by: Mircea Caprioru <mircea.caprioru@analog.com>
Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
It turns out that the fix in commit 6636c3cc56 is bad; the assertion
that the iomap code no longer creates buffer heads is incorrect for
filesystems that set the IOMAP_F_BUFFER_HEAD flag.
Instead, what's happening is that gfs2_iomap_begin_write treats all
files that have the jdata flag set as journaled files, which is
incorrect as long as those files are inline ("stuffed"). We're handling
stuffed files directly via the page cache, which is why we ended up with
pages without buffer heads in gfs2_page_add_databufs.
Fix this by handling stuffed journaled files correctly in
gfs2_iomap_begin_write.
This reverts commit 6636c3cc5690c11631e6366cf9a28fb99c8b25bb.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
It doesn't make sense for a perf event to be configured as a CHAIN event
in isolation, so extend the arm_pmu structure with a ->filter_match()
function to allow the backend PMU implementation to reject CHAIN events
early.
Cc: <stable@vger.kernel.org>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
We describe ranges of 'reserved' memory to userspace via /proc/iomem.
Commit 50d7ba36b9 ("arm64: export memblock_reserve()d regions via
/proc/iomem") updated the logic to export regions that were reserved
because their contents should be preserved. This allowed kexec-tools
to tell the difference between 'reserved' memory that must be
preserved and not overwritten, (e.g. the ACPI tables), and 'nomap'
memory that must not be touched without knowing the memory-attributes
(e.g. RAS CPER regions).
The above commit wrongly assumed that memblock_reserve() would not
be used to reserve regions that aren't memory. It turns out this is
exactly what early_init_dt_reserve_memory_arch() will do if it finds
a DT reserved-memory that was also carved out of the memory node, which
results in a WARN_ON_ONCE() and the region being reserved instead of
ignored. The ramoops description on hikey and dragonboard-410c both do
this, so we can't simply write this configuration off as "buggy firmware".
Avoid this issue by rewriting reserve_memblock_reserved_regions() so
that only the portions of reserved regions which overlap with mapped
memory are actually reserved.
Fixes: 50d7ba36b9 ("arm64: export memblock_reserve()d regions via /proc/iomem")
Reported-by: John Stultz <john.stultz@linaro.org>
Reported-by: Paolo Pisati <p.pisati@gmail.com>
CC: Akashi Takahiro <takahiro.akashi@linaro.org>
CC: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: James Morse <james.morse@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Access to the list of cells by /proc/net/afs/cells has a couple of
problems:
(1) It should be checking against SEQ_START_TOKEN for the keying the
header line.
(2) It's only holding the RCU read lock, so it can't just walk over the
list without following the proper RCU methods.
Fix these by using an hlist instead of an ordinary list and using the
appropriate accessor functions to follow it with RCU.
Since the code that adds a cell to the list must also necessarily change,
sort the list on insertion whilst we're at it.
Fixes: 989782dcdc ("afs: Overhaul cell database management")
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
- Avoid fragile multiblock reads for the last sector in SPI mode
WIFI/SDIO:
- libertas: Fixup suspend sequence for the SDIO card
-----BEGIN PGP SIGNATURE-----
iQJLBAABCgA1FiEEugLDXPmKSktSkQsV/iaEJXNYjCkFAlvAeBQXHHVsZi5oYW5z
c29uQGxpbmFyby5vcmcACgkQ/iaEJXNYjCnGZQ/+OYERfaKGxOWlfTyBEFUoVHid
OKoayYgtI4rHATsDYxo4h33dPneAxd1HL0sGa7U7ReY2whUfMlxzVw0Y1MhfVlwn
LrKXzVvuAu57FbckGIf4aROw6NHGSxYZALCTbFxN/Lz1I7rEsjrKytl5wV8o2Sgc
INevRqYQTQq7B4nkEGCLvvbKOfTSitvh8uYKAXGJRKxM9PEBc0JgZ/eOJe+iFmUV
T79Fj5Rv6Fqi2cKh25kzTD/RVQt/NOKBb7hblnKrAsMCNWOOPhXNacKsXWTpBI0u
w1TAy1rFbmHC1KGuZuVYiYxgYJTkfCqybEh3SQNO+4qxBT6PZjRUIzrQjZ24xAm2
lvXjkhRl0OtS+mAWYDa3CyX+2+sSx45QDjUtpaHdfwpCv3ykoxjpnTS1TWqkdKzh
7MKeeYMH5yF/ERTdPWKNqya11DF5vaI4I10dxux1vHLSVhHFRT4dq0h2XvXL/n8S
+d3Oli3Mn7osXyyCiQCv1vhkaSzRrp3mHKzcbColB2VJPqiHPqjZ8fj7cVdmm8IB
A+25FuLXOaty21SwNsJBwCnxsIGI3t7G0tnh6fu2ZuXEAQGeKlqq6i0Wsq9H2PRs
RGX/tUhphTFXw/E23BZwd3V5igJohy+9MKJttfGxBYJDuJvHAw+pPzv+uTzVsh+d
7D4fwEbVnC9TxCOea4g=
=s+ye
-----END PGP SIGNATURE-----
Merge tag 'mmc-v4.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Ulf writes:
"MMC core:
- Avoid fragile multiblock reads for the last sector in SPI mode
WIFI/SDIO:
- libertas: Fixup suspend sequence for the SDIO card"
* tag 'mmc-v4.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
libertas: call into generic suspend code before turning off power
mmc: block: avoid multiblock reads for the last sector in SPI mode
- Fix up the interrupt parent for the irqdomains.
-----BEGIN PGP SIGNATURE-----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=5Sij
-----END PGP SIGNATURE-----
Merge tag 'gpio-v4.19-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Linus writes:
"GPIO fix for the v4.19 series:
- Fix up the interrupt parent for the irqdomains."
* tag 'gpio-v4.19-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio: Assign gpio_irq_chip::parents to non-stack pointer
- Interrupt setup in the MCP23S08 driver.
-----BEGIN PGP SIGNATURE-----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=XPcv
-----END PGP SIGNATURE-----
Merge tag 'pinctrl-v4.19-5' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Linus writes:
"pin control fix for v4.19:
A single pin control fix for v4.19:
- Interrupt setup in the MCP23S08 driver."
* tag 'pinctrl-v4.19-5' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: mcp23s08: fix irq and irqchip setup order
-----BEGIN PGP SIGNATURE-----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=8MHk
-----END PGP SIGNATURE-----
Merge tag 'drm-fixes-2018-10-12-1' of git://anongit.freedesktop.org/drm/drm
Dave writes:
"drm fixes for 4.19-rc8
single nouveau runtime reference and mst change"
* tag 'drm-fixes-2018-10-12-1' of git://anongit.freedesktop.org/drm/drm:
drm/nouveau/drm/nouveau: Grab runtime PM ref in nv50_mstc_detect()
We only have one bug to submit this time around. It fixes a DMA unmap
issue where we unmapped the DMA address from the IOMMU before we did
from the card, resulting in a DMAR error with IOMMU enabled, or possible
crash without.
-----BEGIN PGP SIGNATURE-----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=hozJ
-----END PGP SIGNATURE-----
Merge tag 'for-gkh' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Doug writes:
"RDMA fixes:
Final for-rc pull request for 4.19
We only have one bug to submit this time around. It fixes a DMA
unmap issue where we unmapped the DMA address from the IOMMU before
we did from the card, resulting in a DMAR error with IOMMU enabled,
or possible crash without."
* tag 'for-gkh' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
IB/mlx5: Unmap DMA addr from HCA before IOMMU
Dmitry writes:
"Input updates for v4.19-rc7
- we added a few scheduling points into various input interfaces to
ensure that large writes will not cause RCU stalls
- fixed configuring PS/2 keyboards as wakeup devices on newer
platforms
- added a new Xbox gamepad ID."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: uinput - add a schedule point in uinput_inject_events()
Input: evdev - add a schedule point in evdev_write()
Input: mousedev - add a schedule point in mousedev_write()
Input: i8042 - enable keyboard wakeups by default when s2idle is used
Input: xpad - add support for Xbox1 PDP Camo series gamepad
Commit
6b7dca401c ("tracing: Allow gcov profiling on only ftrace subsystem")
uncovered linker problems when using gcov kernel profiling on some
architectures. These problems were likely introduced earlier, and are
possibly related to compiler changes.
-----BEGIN PGP SIGNATURE-----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=mvmS
-----END PGP SIGNATURE-----
Merge tag 'next-fixes-20181012' of git://git.kernel.org/pub/scm/linux/kernel/git/sfr/next-fixes
Stephen writes:
"A couple of warning fixes:
Two fixes from Peter Oberparleiter <oberpar@linux.ibm.com>:
Commit 6b7dca401c ("tracing: Allow gcov profiling on only ftrace subsystem")
uncovered linker problems when using gcov kernel profiling on some
architectures. These problems were likely introduced earlier, and are
possibly related to compiler changes."
* tag 'next-fixes-20181012' of git://git.kernel.org/pub/scm/linux/kernel/git/sfr/next-fixes:
vmlinux.lds.h: Fix linker warnings about orphan .LPBX sections
vmlinux.lds.h: Fix incomplete .text.exit discards
The previous patch introduced very large kernel stack usage and a Makefile
change to hide the warning about it.
From what I can tell, a number of things went wrong here:
- The BCH_MAX_T constant was set to the maximum value for 'n',
not the maximum for 't', which is much smaller.
- The stack usage is actually larger than the entire kernel stack
on some architectures that can use 4KB stacks (m68k, sh, c6x), which
leads to an immediate overrun.
- The justification in the patch description claimed that nothing
changed, however that is not the case even without the two points above:
the configuration is machine specific, and most boards never use the
maximum BCH_ECC_WORDS() length but instead have something much smaller.
That maximum would only apply to machines that use both the maximum
block size and the maximum ECC strength.
The largest value for 't' that I could find is '32', which in turn leads
to a 60 byte array instead of 2048 bytes. Making it '64' for future
extension seems also worthwhile, with 120 bytes for the array. Anything
larger won't fit into the OOB area on NAND flash.
With that changed, the warning can be enabled again.
Only linux-4.19+ contains the breakage, so this is only needed
as a stable backport if it does not make it into the release.
Fixes: 02361bc778 ("lib/bch: Remove VLA usage")
Reported-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: stable@vger.kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
David writes:
"Networking
1) RXRPC receive path fixes from David Howells.
2) Re-export __skb_recv_udp(), from Jiri Kosina.
3) Fix refcounting in u32 classificer, from Al Viro.
4) Userspace netlink ABI fixes from Eugene Syromiatnikov.
5) Don't double iounmap on rmmod in ena driver, from Arthur
Kiyanovski.
6) Fix devlink string attribute handling, we must pull a copy into a
kernel buffer if the lifetime extends past the netlink request.
From Moshe Shemesh.
7) Fix hangs in RDS, from Ka-Cheong Poon.
8) Fix recursive locking lockdep warnings in tipc, from Ying Xue.
9) Clear RX irq correctly in socionext, from Ilias Apalodimas.
10) bcm_sf2 fixes from Florian Fainelli."
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (38 commits)
net: dsa: bcm_sf2: Call setup during switch resume
net: dsa: bcm_sf2: Fix unbind ordering
net: phy: sfp: remove sfp_mutex's definition
r8169: set RX_MULTI_EN bit in RxConfig for 8168F-family chips
net: socionext: clear rx irq correctly
net/mlx4_core: Fix warnings during boot on driverinit param set failures
tipc: eliminate possible recursive locking detected by LOCKDEP
selftests: udpgso_bench.sh explicitly requires bash
selftests: rtnetlink.sh explicitly requires bash.
qmi_wwan: Added support for Gemalto's Cinterion ALASxx WWAN interface
tipc: queue socket protocol error messages into socket receive buffer
tipc: set link tolerance correctly in broadcast link
net: ipv4: don't let PMTU updates increase route MTU
net: ipv4: update fnhe_pmtu when first hop's MTU changes
net/ipv6: stop leaking percpu memory in fib6 info
rds: RDS (tcp) hangs on sendto() to unresponding address
net: make skb_partial_csum_set() more robust against overflows
devlink: Add helper function for safely copy string param
devlink: Fix param cmode driverinit for string type
devlink: Fix param set handling for string type
...
Florian Fainelli says:
====================
net: dsa: bcm_sf2: Couple of fixes
Here are two fixes for the bcm_sf2 driver that were found during
testing unbind and analysing another issue during system
suspend/resume.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
There is no reason to open code what the switch setup function does, in
fact, because we just issued a switch reset, we would make all the
register get their default values, including for instance, having unused
port be enabled again and wasting power and leading to an inappropriate
switch core clock being selected.
Fixes: 8cfa94984c ("net: dsa: bcm_sf2: add suspend/resume callbacks")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The order in which we release resources is unfortunately leading to bus
errors while dismantling the port. This is because we set
priv->wol_ports_mask to 0 to tell bcm_sf2_sw_suspend() that it is now
permissible to clock gate the switch. Later on, when dsa_slave_destroy()
comes in from dsa_unregister_switch() and calls
dsa_switch_ops::port_disable, we perform the same dismantling again, and
this time we hit registers that are clock gated.
Make sure that dsa_unregister_switch() is the first thing that happens,
which takes care of releasing all user visible resources, then proceed
with clock gating hardware. We still need to set priv->wol_ports_mask to
0 to make sure that an enabled port properly gets disabled in case it
was previously used as part of Wake-on-LAN.
Fixes: d9338023fb ("net: dsa: bcm_sf2: Make it a real platform device driver")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Enabling both CONFIG_LD_DEAD_CODE_DATA_ELIMINATION=y and
CONFIG_GCOV_PROFILE_ALL=y results in linker warnings:
warning: orphan section `.data..LPBX1' being placed in
section `.data..LPBX1'.
LD_DEAD_CODE_DATA_ELIMINATION adds compiler flag -fdata-sections. This
option causes GCC to create separate data sections for data objects,
including those generated by GCC internally for gcov profiling. The
names of these objects start with a dot (.LPBX0, .LPBX1), resulting in
section names starting with 'data..'.
As section names starting with 'data..' are used for specific purposes
in the Linux kernel, the linker script does not automatically include
them in the output data section, resulting in the "orphan section"
linker warnings.
Fix this by specifically including sections named "data..LPBX*" in the
data section.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Tested-by: Stephen Rothwell <sfr@canb.auug.org.au>
Tested-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Enabling CONFIG_GCOV_PROFILE_ALL=y causes linker errors on ARM:
`.text.exit' referenced in section `.ARM.exidx.text.exit':
defined in discarded section `.text.exit'
`.text.exit' referenced in section `.fini_array.00100':
defined in discarded section `.text.exit'
And related errors on NDS32:
`.text.exit' referenced in section `.dtors.65435':
defined in discarded section `.text.exit'
The gcov compiler flags cause certain compiler versions to generate
additional destructor-related sections that are not yet handled by the
linker script, resulting in references between discarded and
non-discarded sections.
Since destructors are not used in the Linux kernel, fix this by
discarding these additional sections.
Reported-by: Arnd Bergmann <arnd@arndb.de>
Tested-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Reported-by: Greentime Hu <green.hu@gmail.com>
Tested-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
This function was renamed in commit 82fe39a6bc ("i2c: refactor
function to release a DMA safe buffer") but this kernel doc wasn't
updated to point at the new function. Rename it.
Fixes: 82fe39a6bc ("i2c: refactor function to release a DMA safe buffer")
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Tetsuo brought to my attention that I screwed up the scale_up/scale_down
helpers when I factored out the rq-qos code. We need to wake up all the
waiters when we add slots for requests to make, not when we shrink the
slots. Otherwise we'll end up things waiting forever. This was a
mistake and simply puts everything back the way it was.
cc: stable@vger.kernel.org
Fixes: a79050434b ("blk-rq-qos: refactor out common elements of blk-wbt")
eported-by: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
The sfp_mutex variable is defined but never used in this file. Not even
in the commit that introduced that variable.
Remove sfp_mutex, it has no purpose.
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
It has been reported that since
commit 05212ba813 ("r8169: set RxConfig after tx/rx is enabled for RTL8169sb/8110sb devices")
at least RTL_GIGA_MAC_VER_38 NICs work erratically after a resume from
suspend.
The problem has been traced to a missing RX_MULTI_EN bit in the RxConfig
register.
We already set this bit for RTL_GIGA_MAC_VER_35 NICs of the same 8168F
chip family so let's do it also for its other siblings: RTL_GIGA_MAC_VER_36
and RTL_GIGA_MAC_VER_38.
Curiously, the NIC seems to work fine after a system boot without having
this bit set as long as the system isn't suspended and resumed.
Fixes: 05212ba813 ("r8169: set RxConfig after tx/rx is enabled for RTL8169sb/8110sb devices")
Reported-by: Chris Clayton <chris2553@googlemail.com>
Signed-off-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
Reviewed-by: Heiner Kallweit <hkallweit1@gmail.com>
Tested-by: Chris Clayton <chris2553@googlemail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit 63ae7949e9 ("net: socionext: Use descriptor info instead of MMIO reads on Rx")
removed constant mmio reads from the driver and started using a descriptor
field to check if packet should be processed.
This lead the napi rx handler being constantly called while no packets
needed processing and ksoftirq getting 100% cpu usage. Issue one mmio read
to clear the irq correcty after processing packets
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reported-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Tested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
