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git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs
Pull zonefs fix from Damien Le Moal:
"A single patch in this pull request to fix a BIO and page reference
leak when writing sequential zone files"
* tag 'zonefs-5.10-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs:
zonefs: fix page reference and BIO leak
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Remove bpf_ prefix, which causes these helpers to be reported in verifier
dump as bpf_bpf_this_cpu_ptr() and bpf_bpf_per_cpu_ptr(), respectively. Lets
fix it as long as it is still possible before UAPI freezes on these helpers.
Fixes: eaa6bcb71ef6 ("bpf: Introduce bpf_per_cpu_ptr()")
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Merge misc fixes from Andrew Morton:
"8 patches.
Subsystems affected by this patch series: proc, selftests, kbuild, and
mm (pagecache, kasan, hugetlb)"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
mm/hugetlb: clear compound_nr before freeing gigantic pages
kasan: fix object remaining in offline per-cpu quarantine
elfcore: fix building with clang
initramfs: fix clang build failure
kbuild: avoid static_assert for genksyms
selftest/fpu: avoid clang warning
proc: use untagged_addr() for pagemap_read addresses
revert "mm/filemap: add static for function __add_to_page_cache_locked"
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Commit 1378a5ee451a ("mm: store compound_nr as well as compound_order")
added compound_nr counter to first tail struct page, overlaying with
page->mapping. The overlay itself is fine, but while freeing gigantic
hugepages via free_contig_range(), a "bad page" check will trigger for
non-NULL page->mapping on the first tail page:
BUG: Bad page state in process bash pfn:380001
page:00000000c35f0856 refcount:0 mapcount:0 mapping:00000000126b68aa index:0x0 pfn:0x380001
aops:0x0
flags: 0x3ffff00000000000()
raw: 3ffff00000000000 0000000000000100 0000000000000122 0000000100000000
raw: 0000000000000000 0000000000000000 ffffffff00000000 0000000000000000
page dumped because: non-NULL mapping
Modules linked in:
CPU: 6 PID: 616 Comm: bash Not tainted 5.10.0-rc7-next-20201208 #1
Hardware name: IBM 3906 M03 703 (LPAR)
Call Trace:
show_stack+0x6e/0xe8
dump_stack+0x90/0xc8
bad_page+0xd6/0x130
free_pcppages_bulk+0x26a/0x800
free_unref_page+0x6e/0x90
free_contig_range+0x94/0xe8
update_and_free_page+0x1c4/0x2c8
free_pool_huge_page+0x11e/0x138
set_max_huge_pages+0x228/0x300
nr_hugepages_store_common+0xb8/0x130
kernfs_fop_write+0xd2/0x218
vfs_write+0xb0/0x2b8
ksys_write+0xac/0xe0
system_call+0xe6/0x288
Disabling lock debugging due to kernel taint
This is because only the compound_order is cleared in
destroy_compound_gigantic_page(), and compound_nr is set to
1U << order == 1 for order 0 in set_compound_order(page, 0).
Fix this by explicitly clearing compound_nr for first tail page after
calling set_compound_order(page, 0).
Link: https://lkml.kernel.org/r/20201208182813.66391-2-gerald.schaefer@linux.ibm.com
Fixes: 1378a5ee451a ("mm: store compound_nr as well as compound_order")
Signed-off-by: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: <stable@vger.kernel.org> [5.9+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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We hit this issue in our internal test. When enabling generic kasan, a
kfree()'d object is put into per-cpu quarantine first. If the cpu goes
offline, object still remains in the per-cpu quarantine. If we call
kmem_cache_destroy() now, slub will report "Objects remaining" error.
=============================================================================
BUG test_module_slab (Not tainted): Objects remaining in test_module_slab on __kmem_cache_shutdown()
-----------------------------------------------------------------------------
Disabling lock debugging due to kernel taint
INFO: Slab 0x(____ptrval____) objects=34 used=1 fp=0x(____ptrval____) flags=0x2ffff00000010200
CPU: 3 PID: 176 Comm: cat Tainted: G B 5.10.0-rc1-00007-g4525c8781ec0-dirty #10
Hardware name: linux,dummy-virt (DT)
Call trace:
dump_backtrace+0x0/0x2b0
show_stack+0x18/0x68
dump_stack+0xfc/0x168
slab_err+0xac/0xd4
__kmem_cache_shutdown+0x1e4/0x3c8
kmem_cache_destroy+0x68/0x130
test_version_show+0x84/0xf0
module_attr_show+0x40/0x60
sysfs_kf_seq_show+0x128/0x1c0
kernfs_seq_show+0xa0/0xb8
seq_read+0x1f0/0x7e8
kernfs_fop_read+0x70/0x338
vfs_read+0xe4/0x250
ksys_read+0xc8/0x180
__arm64_sys_read+0x44/0x58
el0_svc_common.constprop.0+0xac/0x228
do_el0_svc+0x38/0xa0
el0_sync_handler+0x170/0x178
el0_sync+0x174/0x180
INFO: Object 0x(____ptrval____) @offset=15848
INFO: Allocated in test_version_show+0x98/0xf0 age=8188 cpu=6 pid=172
stack_trace_save+0x9c/0xd0
set_track+0x64/0xf0
alloc_debug_processing+0x104/0x1a0
___slab_alloc+0x628/0x648
__slab_alloc.isra.0+0x2c/0x58
kmem_cache_alloc+0x560/0x588
test_version_show+0x98/0xf0
module_attr_show+0x40/0x60
sysfs_kf_seq_show+0x128/0x1c0
kernfs_seq_show+0xa0/0xb8
seq_read+0x1f0/0x7e8
kernfs_fop_read+0x70/0x338
vfs_read+0xe4/0x250
ksys_read+0xc8/0x180
__arm64_sys_read+0x44/0x58
el0_svc_common.constprop.0+0xac/0x228
kmem_cache_destroy test_module_slab: Slab cache still has objects
Register a cpu hotplug function to remove all objects in the offline
per-cpu quarantine when cpu is going offline. Set a per-cpu variable to
indicate this cpu is offline.
[qiang.zhang@windriver.com: fix slab double free when cpu-hotplug]
Link: https://lkml.kernel.org/r/20201204102206.20237-1-qiang.zhang@windriver.com
Link: https://lkml.kernel.org/r/1606895585-17382-2-git-send-email-Kuan-Ying.Lee@mediatek.com
Signed-off-by: Kuan-Ying Lee <Kuan-Ying.Lee@mediatek.com>
Signed-off-by: Zqiang <qiang.zhang@windriver.com>
Suggested-by: Dmitry Vyukov <dvyukov@google.com>
Reported-by: Guangye Yang <guangye.yang@mediatek.com>
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: Nicholas Tang <nicholas.tang@mediatek.com>
Cc: Miles Chen <miles.chen@mediatek.com>
Cc: Qian Cai <qcai@redhat.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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kernel/elfcore.c only contains weak symbols, which triggers a bug with
clang in combination with recordmcount:
Cannot find symbol for section 2: .text.
kernel/elfcore.o: failed
Move the empty stubs into linux/elfcore.h as inline functions. As only
two architectures use these, just use the architecture specific Kconfig
symbols to key off the declaration.
Link: https://lkml.kernel.org/r/20201204165742.3815221-2-arnd@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Nathan Chancellor <natechancellor@gmail.com>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Barret Rhoden <brho@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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There is only one function in init/initramfs.c that is in the .text
section, and it is marked __weak. When building with clang-12 and the
integrated assembler, this leads to a bug with recordmcount:
./scripts/recordmcount "init/initramfs.o"
Cannot find symbol for section 2: .text.
init/initramfs.o: failed
I'm not quite sure what exactly goes wrong, but I notice that this
function is only ever called from an __init function, and normally
inlined. Marking it __init as well is clearly correct and it leads to
recordmcount no longer complaining.
Link: https://lkml.kernel.org/r/20201204165742.3815221-1-arnd@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Nathan Chancellor <natechancellor@gmail.com>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Barret Rhoden <brho@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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genksyms does not know or care about the _Static_assert() built-in, and
sometimes falls back to ignoring the later symbols, which causes
undefined behavior such as
WARNING: modpost: EXPORT symbol "ethtool_set_ethtool_phy_ops" [vmlinux] version generation failed, symbol will not be versioned.
ld: net/ethtool/common.o: relocation R_AARCH64_ABS32 against `__crc_ethtool_set_ethtool_phy_ops' can not be used when making a shared object
net/ethtool/common.o:(_ftrace_annotated_branch+0x0): dangerous relocation: unsupported relocation
Redefine static_assert for genksyms to avoid that.
Link: https://lkml.kernel.org/r/20201203230955.1482058-1-arnd@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Suggested-by: Ard Biesheuvel <ardb@kernel.org>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Michal Marek <michal.lkml@markovi.net>
Cc: Kees Cook <keescook@chromium.org>
Cc: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Cc: Marco Elver <elver@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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With extra warnings enabled, clang complains about the redundant
-mhard-float argument:
clang: error: argument unused during compilation: '-mhard-float' [-Werror,-Wunused-command-line-argument]
Move this into the gcc-only part of the Makefile.
Link: https://lkml.kernel.org/r/20201203223652.1320700-1-arnd@kernel.org
Fixes: 4185b3b92792 ("selftests/fpu: Add an FPU selftest")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Nathan Chancellor <natechancellor@gmail.com>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Petteri Aimonen <jpa@git.mail.kapsi.fi>
Cc: Borislav Petkov <bp@suse.de>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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When we try to visit the pagemap of a tagged userspace pointer, we find
that the start_vaddr is not correct because of the tag.
To fix it, we should untag the userspace pointers in pagemap_read().
I tested with 5.10-rc4 and the issue remains.
Explanation from Catalin in [1]:
"Arguably, that's a user-space bug since tagged file offsets were never
supported. In this case it's not even a tag at bit 56 as per the arm64
tagged address ABI but rather down to bit 47. You could say that the
problem is caused by the C library (malloc()) or whoever created the
tagged vaddr and passed it to this function. It's not a kernel
regression as we've never supported it.
Now, pagemap is a special case where the offset is usually not
generated as a classic file offset but rather derived by shifting a
user virtual address. I guess we can make a concession for pagemap
(only) and allow such offset with the tag at bit (56 - PAGE_SHIFT + 3)"
My test code is based on [2]:
A userspace pointer which has been tagged by 0xb4: 0xb400007662f541c8
userspace program:
uint64 OsLayer::VirtualToPhysical(void *vaddr) {
uint64 frame, paddr, pfnmask, pagemask;
int pagesize = sysconf(_SC_PAGESIZE);
off64_t off = ((uintptr_t)vaddr) / pagesize * 8; // off = 0xb400007662f541c8 / pagesize * 8 = 0x5a00003b317aa0
int fd = open(kPagemapPath, O_RDONLY);
...
if (lseek64(fd, off, SEEK_SET) != off || read(fd, &frame, 8) != 8) {
int err = errno;
string errtxt = ErrorString(err);
if (fd >= 0)
close(fd);
return 0;
}
...
}
kernel fs/proc/task_mmu.c:
static ssize_t pagemap_read(struct file *file, char __user *buf,
size_t count, loff_t *ppos)
{
...
src = *ppos;
svpfn = src / PM_ENTRY_BYTES; // svpfn == 0xb400007662f54
start_vaddr = svpfn << PAGE_SHIFT; // start_vaddr == 0xb400007662f54000
end_vaddr = mm->task_size;
/* watch out for wraparound */
// svpfn == 0xb400007662f54
// (mm->task_size >> PAGE) == 0x8000000
if (svpfn > mm->task_size >> PAGE_SHIFT) // the condition is true because of the tag 0xb4
start_vaddr = end_vaddr;
ret = 0;
while (count && (start_vaddr < end_vaddr)) { // we cannot visit correct entry because start_vaddr is set to end_vaddr
int len;
unsigned long end;
...
}
...
}
[1] https://lore.kernel.org/patchwork/patch/1343258/
[2] https://github.com/stressapptest/stressapptest/blob/master/src/os.cc#L158
Link: https://lkml.kernel.org/r/20201204024347.8295-1-miles.chen@mediatek.com
Signed-off-by: Miles Chen <miles.chen@mediatek.com>
Reviewed-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Andrey Konovalov <andreyknvl@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Marco Elver <elver@google.com>
Cc: Will Deacon <will@kernel.org>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Song Bao Hua (Barry Song) <song.bao.hua@hisilicon.com>
Cc: <stable@vger.kernel.org> [5.4-]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Revert commit 3351b16af494 ("mm/filemap: add static for function
__add_to_page_cache_locked") due to incompatibility with
ALLOW_ERROR_INJECTION which result in build errors.
Link: https://lkml.kernel.org/r/CAADnVQJ6tmzBXvtroBuEH6QA0H+q7yaSKxrVvVxhqr3KBZdEXg@mail.gmail.com
Tested-by: Justin Forbes <jmforbes@linuxtx.org>
Tested-by: Greg Thelen <gthelen@google.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Cc: Michal Kubecek <mkubecek@suse.cz>
Cc: Alex Shi <alex.shi@linux.alibaba.com>
Cc: Souptick Joarder <jrdr.linux@gmail.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Josef Bacik <josef@toxicpanda.com>
Cc: Tony Luck <tony.luck@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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We need to make sure we are not stomping on the control URB that was
issued when opening the device when attempting to toggle buzzer.
To do that we need to mark it as pending in cm109_open().
Reported-and-tested-by: syzbot+150f793ac5bc18eee150@syzkaller.appspotmail.com
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Originally, commit d7157ff49a5b ("mtd: rawnand: Use the ECC framework
user input parsing bits") kind of broke the logic around the
initialization of several ECC engines.
Unfortunately, the fix (which indeed moved the ECC initialization to
the right place) did not take into account the fact that a different
ECC algorithm could have been used thanks to a DT property,
considering the "Hamming" algorithm entry a configuration while it was
only a default.
Add the necessary logic to be sure Hamming keeps being only a default.
Fixes: d525914b5bd8 ("mtd: rawnand: xway: Move the ECC initialization to ->attach_chip()")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20201203190340.15522-10-miquel.raynal@bootlin.com
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Originally, commit d7157ff49a5b ("mtd: rawnand: Use the ECC framework
user input parsing bits") kind of broke the logic around the
initialization of several ECC engines.
Unfortunately, the fix (which indeed moved the ECC initialization to
the right place) did not take into account the fact that a different
ECC algorithm could have been used thanks to a DT property,
considering the "Hamming" algorithm entry a configuration while it was
only a default.
Add the necessary logic to be sure Hamming keeps being only a default.
Fixes: b36bf0a0fe5d ("mtd: rawnand: socrates: Move the ECC initialization to ->attach_chip()")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20201203190340.15522-9-miquel.raynal@bootlin.com
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Originally, commit d7157ff49a5b ("mtd: rawnand: Use the ECC framework
user input parsing bits") kind of broke the logic around the
initialization of several ECC engines.
Unfortunately, the fix (which indeed moved the ECC initialization to
the right place) did not take into account the fact that a different
ECC algorithm could have been used thanks to a DT property,
considering the "Hamming" algorithm entry a configuration while it was
only a default.
Add the necessary logic to be sure Hamming keeps being only a default.
Fixes: 612e048e6aab ("mtd: rawnand: plat_nand: Move the ECC initialization to ->attach_chip()")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20201203190340.15522-8-miquel.raynal@bootlin.com
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Originally, commit d7157ff49a5b ("mtd: rawnand: Use the ECC framework
user input parsing bits") kind of broke the logic around the
initialization of several ECC engines.
Unfortunately, the fix (which indeed moved the ECC initialization to
the right place) did not take into account the fact that a different
ECC algorithm could have been used thanks to a DT property,
considering the "Hamming" algorithm entry a configuration while it was
only a default.
Add the necessary logic to be sure Hamming keeps being only a default.
Fixes: 8fc6f1f042b2 ("mtd: rawnand: pasemi: Move the ECC initialization to ->attach_chip()")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20201203190340.15522-7-miquel.raynal@bootlin.com
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Originally, commit d7157ff49a5b ("mtd: rawnand: Use the ECC framework
user input parsing bits") kind of broke the logic around the
initialization of several ECC engines.
Unfortunately, the fix (which indeed moved the ECC initialization to
the right place) did not take into account the fact that a different
ECC algorithm could have been used thanks to a DT property,
considering the "Hamming" algorithm entry a configuration while it was
only a default.
Add the necessary logic to be sure Hamming keeps being only a default.
Reported-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Fixes: 553508cec2e8 ("mtd: rawnand: orion: Move the ECC initialization to ->attach_chip()")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Tested-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Link: https://lore.kernel.org/linux-mtd/20201203190340.15522-6-miquel.raynal@bootlin.com
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Originally, commit d7157ff49a5b ("mtd: rawnand: Use the ECC framework
user input parsing bits") kind of broke the logic around the
initialization of several ECC engines.
Unfortunately, the fix (which indeed moved the ECC initialization to
the right place) did not take into account the fact that a different
ECC algorithm could have been used thanks to a DT property,
considering the "Hamming" algorithm entry a configuration while it was
only a default.
Add the necessary logic to be sure Hamming keeps being only a default.
Fixes: 6dd09f775b72 ("mtd: rawnand: mpc5121: Move the ECC initialization to ->attach_chip()")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20201203190340.15522-5-miquel.raynal@bootlin.com
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Originally, commit d7157ff49a5b ("mtd: rawnand: Use the ECC framework
user input parsing bits") kind of broke the logic around the
initialization of several ECC engines.
Unfortunately, the fix (which indeed moved the ECC initialization to
the right place) did not take into account the fact that a different
ECC algorithm could have been used thanks to a DT property,
considering the "Hamming" algorithm entry a configuration while it was
only a default.
Add the necessary logic to be sure Hamming keeps being only a default.
Fixes: f6341f6448e0 ("mtd: rawnand: gpio: Move the ECC initialization to ->attach_chip()")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20201203190340.15522-4-miquel.raynal@bootlin.com
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Originally, commit d7157ff49a5b ("mtd: rawnand: Use the ECC framework
user input parsing bits") kind of broke the logic around the
initialization of several ECC engines.
Unfortunately, the fix (which indeed moved the ECC initialization to
the right place) did not take into account the fact that a different
ECC algorithm could have been used thanks to a DT property,
considering the "Hamming" algorithm entry a configuration while it was
only a default.
Add the necessary logic to be sure Hamming keeps being only a default.
Fixes: dbffc8ccdf3a ("mtd: rawnand: au1550: Move the ECC initialization to ->attach_chip()")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20201203190340.15522-3-miquel.raynal@bootlin.com
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Originally, commit d7157ff49a5b ("mtd: rawnand: Use the ECC framework
user input parsing bits") kind of broke the logic around the
initialization of several ECC engines.
Unfortunately, the fix (which indeed moved the ECC initialization to
the right place) did not take into account the fact that a different
ECC algorithm could have been used thanks to a DT property,
considering the "Hamming" algorithm entry a configuration while it was
only a default.
Add the necessary logic to be sure Hamming keeps being only a default.
Fixes: 59d93473323a ("mtd: rawnand: ams-delta: Move the ECC initialization to ->attach_chip()")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20201203190340.15522-2-miquel.raynal@bootlin.com
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control fixes from Linus Walleij:
"Here is a late set of pin control fixes for v5.10, most concern some
minor and major issues found in the Intel drivers. Some are so hairy
that I have no idea what is going on there, but luckily the maintainer
knows what's up.
We also have an interesting fix for AMD, which makes AMD-based laptops
more stable IIUC.
Summary:
- Fix up some SPI group and a register offset on Intel Jasperlake
- Set default bias on Intel Merrifield
- Preserve debouncing on Intel Baytrail
- Stop .set_type() irqchip callback in the AMD driver from fiddling
with the debounce filter
- Fix access to GPIO banks that are pass-thru on the Aspeed
- Fix a fix for the Intel pin control driver to disable Rx/Tx when
requesting a UART line as GPIO"
* tag 'pinctrl-v5.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: intel: Actually disable Tx and Rx buffers on GPIO request
pinctrl: aspeed: Fix GPIO requests on pass-through banks
pinctrl: amd: remove debounce filter setting in IRQ type setting
pinctrl: baytrail: Avoid clearing debounce value when turning it off
pinctrl: merrifield: Set default bias in case no particular value given
pinctrl: jasperlake: Fix HOSTSW_OWN offset
pinctrl: jasperlake: Unhide SPI group of pins
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO fixes from Linus Walleij:
"These are hopefully the last GPIO fixes for this cycle.
All are driver fixes except a small resource leak for pin ranges in
the gpiolib. Two are PM related, which is nice because when developers
start to find PM bugs it is usually because they have smoked out the
bugs of more severe nature.
Summary:
- Fix runtime PM balancing on the errorpath of the Arizona driver
- Fix a suspend NULL pointer reference in the dwapb driver
- Balance free:ing in gpiochip_generic_free()
- Fix runtime PM balancing on the errorpath of the zynq driver
- Fix irqdomain use-after-free in the mvebu driver
- Break an eternal loop in the spreadtrum EIC driver"
* tag 'v5.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio: eic-sprd: break loop when getting NULL device resource
gpio: mvebu: fix potential user-after-free on probe
gpio: zynq: fix reference leak in zynq_gpio functions
gpiolib: Don't free if pin ranges are not defined
gpio: dwapb: fix NULL pointer dereference at dwapb_gpio_suspend()
gpio: arizona: disable pm_runtime in case of failure
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git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk fixes from Stephen Boyd:
"Two small clk driver build fixes
- Remove __packed from a Renesas struct to improve portability
- Fix a linking problem with i.MX when config options don't agree"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: renesas: r9a06g032: Drop __packed for portability
clk: imx: scu: fix MXC_CLK_SCU module build break
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storvsc_on_channel_callback()"
This reverts commit 3b8c72d076c42bf27284cda7b2b2b522810686f8.
Dexuan reported a regression where StorVSC fails to probe a device (and
where, consequently, the VM may fail to boot). The root-cause analysis led
to a long-standing race condition that is exposed by the validation /commit
in question. Let's put the new validation aside until a proper solution
for that race condition is in place.
Link: https://lore.kernel.org/r/20201211131404.21359-1-parri.andrea@gmail.com
Fixes: 3b8c72d076c4 ("scsi: storvsc: Validate length of incoming packet in storvsc_on_channel_callback()")
Cc: Dexuan Cui <decui@microsoft.com>
Cc: "James E.J. Bottomley" <jejb@linux.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: linux-scsi@vger.kernel.org
Signed-off-by: Andrea Parri (Microsoft) <parri.andrea@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Pull drm fixes from Dave Airlie:
"Last week of fixes, just amdgpu and i915 collections. We had a i915
regression reported by HJ Lu reported this morning, and this contains
a fix for that he has tested.
There are a fair few other fixes, but they are spread across the two
drivers, and all fairly self contained.
amdgpu:
- Fan fix for CI asics
- Fix a warning in possible_crtcs
- Build fix for when debugfs is disabled
- Display overflow fix
- Display watermark fixes for Renoir
- SDMA 5.2 fix
- Stolen vga memory regression fix
- Power profile fixes
- Fix a regression from removal of GEM and PRIME callbacks
amdkfd:
- Fix a memory leak in dmabuf import
i915:
- rc7 regression fix for modesetting
- vdsc/dp slice fixes
- gen9 mocs entries fix
- preemption timeout fix
- unsigned compare against 0 fix
- selftest fix
- submission error propogatig fix
- request flow suspend fix"
* tag 'drm-fixes-2020-12-11' of git://anongit.freedesktop.org/drm/drm:
drm/i915/display: Go softly softly on initial modeset failure
drm/amd/pm: typo fix (CUSTOM -> COMPUTE)
drm/amdgpu: Initialise drm_gem_object_funcs for imported BOs
drm/amdgpu: fix size calculation with stolen vga memory
drm/amd/pm: update smu10.h WORKLOAD_PPLIB setting for raven
drm/amdkfd: Fix leak in dmabuf import
drm/amdgpu: fix sdma instance fw version and feature version init
drm/amd/display: Add wm table for Renoir
drm/amd/display: Prevent bandwidth overflow
drm/amdgpu: fix debugfs creation/removal, again
drm/amdgpu/disply: set num_crtc earlier
drm/amdgpu/powerplay: parse fan table for CI asics
drm/i915/gt: Declare gen9 has 64 mocs entries!
drm/i915/display/dp: Compute the correct slice count for VDSC on DP
drm/i915: fix size_t greater or equal to zero comparison
drm/i915/gt: Cancel the preemption timeout on responding to it
drm/i915/gt: Ignore repeated attempts to suspend request flow across reset
drm/i915/gem: Propagate error from cancelled submit due to context closure
drm/i915/gem: Check the correct variable in selftest
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The timer driver uses get_cycles64() unconditionally to obtain the current
time. A recent refactoring lost the common definition for some configs, which
is now the only one we need.
Fixes: d5be89a8d118 ("RISC-V: Resurrect the MMIO timer implementation for M-mode systems")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest
Pull ktest fix from Steven Rostedt:
"Fix issues with grub2bls in ktest.pl
ktest.pl did not know about grub2bls that was introduced in Fedora 30,
and now it does"
* tag 'ktest-v5.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest:
ktest.pl: Fix incorrect reboot for grub2bls
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fix from Michael Ellerman:
"One commit to implement copy_from_kernel_nofault_allowed(), otherwise
copy_from_kernel_nofault() can trigger warnings when accessing bad
addresses in some configurations.
Thanks to Christophe Leroy and Qian Cai"
* tag 'powerpc-5.10-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/mm: Fix KUAP warning by providing copy_from_kernel_nofault_allowed()
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git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull namespaced fscaps fix from James Morris:
"Fix namespaced fscaps when !CONFIG_SECURITY (Serge Hallyn)"
* tag 'fixes-v5.10a' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
[SECURITY] fix namespaced fscaps when !CONFIG_SECURITY
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Reduce the module/device probe error into a mere debug to hide issues
where the initial modeset is failing (after lies told by hw probe) and
the system hangs with a livelock in cleaning up the failed commit.
Reported-by: H.J. Lu <hjl.tools@gmail.com>
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=210619
Fixes: b3bf99daaee9 ("drm/i915/display: Defer initial modeset until after GGTT is initialised")
Fixes: ccc9e67ab26f ("drm/i915/display: Defer initial modeset until after GGTT is initialised")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: "Ville Syrjälä" <ville.syrjala@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: H.J. Lu <hjl.tools@gmail.com>
Cc: Dave Airlie <airlied@redhat.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201210230741.17140-1-chris@chris-wilson.co.uk
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git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
Fixes for VDSC/DP, selftests, shmem_utils, preemption, submission, and gt reset:
- Check the correct variable in selftest (Dan)
- Propagate error from canceled submit due to context closure (Chris)
- Ignore repeated attempts to suspend request flow across reset (Chris)
- Cancel the preemption timeout on responding to it (Chris)
- Fix unsigned compared against 0 (Colin)
- Compute the correct slice count for VDSC on DP (Manasi)
- Declar gen9 has 64 mocs entries (Chris)
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201209235010.GA10554@intel.com
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git://people.freedesktop.org/~agd5f/linux into drm-fixes
amd-drm-fixes-5.10-2020-12-09:
amdgpu:
- Fan fix for CI asics
- Fix a warning in possible_crtcs
- Build fix for when debugfs is disabled
- Display overflow fix
- Display watermark fixes for Renoir
- SDMA 5.2 fix
- Stolen vga memory regression fix
- Power profile fixes
- Fix a regression from removal of GEM and PRIME callbacks
amdkfd:
- Fix a memory leak in dmabuf import
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201210034848.18108-1-alexander.deucher@amd.com
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Pull NFS client fixes from Anna Schumaker:
"Here are a handful more bugfixes for 5.10.
Unfortunately, we found some problems with the new READ_PLUS operation
that aren't easy to fix. We've decided to disable this codepath
through a Kconfig option for now, but a series of patches going into
5.11 will clean up the code and fix the issues at the same time. This
seemed like the best way to go about it.
Summary:
- Fix array overflow when flexfiles mirroring is enabled
- Fix rpcrdma_inline_fixup() crash with new LISTXATTRS
- Fix 5 second delay when doing inter-server copy
- Disable READ_PLUS by default"
* tag 'nfs-for-5.10-3' of git://git.linux-nfs.org/projects/anna/linux-nfs:
NFS: Disable READ_PLUS by default
NFSv4.2: Fix 5 seconds delay when doing inter server copy
NFS: Fix rpcrdma_inline_fixup() crash with new LISTXATTRS operation
pNFS/flexfiles: Fix array overflow when flexfiles mirroring is enabled
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Pull networking fixes from David Miller:
1) IPsec compat fixes, from Dmitry Safonov.
2) Fix memory leak in xfrm_user_policy(). Fix from Yu Kuai.
3) Fix polling in xsk sockets by using sk_poll_wait() instead of
datagram_poll() which keys off of sk_wmem_alloc and such which xsk
sockets do not update. From Xuan Zhuo.
4) Missing init of rekey_data in cfgh80211, from Sara Sharon.
5) Fix destroy of timer before init, from Davide Caratti.
6) Missing CRYPTO_CRC32 selects in ethernet driver Kconfigs, from Arnd
Bergmann.
7) Missing error return in rtm_to_fib_config() switch case, from Zhang
Changzhong.
8) Fix some src/dest address handling in vrf and add a testcase. From
Stephen Suryaputra.
9) Fix multicast handling in Seville switches driven by mscc-ocelot
driver. From Vladimir Oltean.
10) Fix proto value passed to skb delivery demux in udp, from Xin Long.
11) HW pkt counters not reported correctly in enetc driver, from Claudiu
Manoil.
12) Fix deadlock in bridge, from Joseph Huang.
13) Missing of_node_pur() in dpaa2 driver, fromn Christophe JAILLET.
14) Fix pid fetching in bpftool when there are a lot of results, from
Andrii Nakryiko.
15) Fix long timeouts in nft_dynset, from Pablo Neira Ayuso.
16) Various stymmac fixes, from Fugang Duan.
17) Fix null deref in tipc, from Cengiz Can.
18) When mss is biog, coose more resonable rcvq_space in tcp, fromn Eric
Dumazet.
19) Revert a geneve change that likely isnt necessary, from Jakub
Kicinski.
20) Avoid premature rx buffer reuse in various Intel driversm from Björn
Töpel.
21) retain EcT bits during TIS reflection in tcp, from Wei Wang.
22) Fix Tso deferral wrt. cwnd limiting in tcp, from Neal Cardwell.
23) MPLS_OPT_LSE_LABEL attribute is 342 ot 8 bits, from Guillaume Nault
24) Fix propagation of 32-bit signed bounds in bpf verifier and add test
cases, from Alexei Starovoitov.
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (81 commits)
selftests: fix poll error in udpgro.sh
selftests/bpf: Fix "dubious pointer arithmetic" test
selftests/bpf: Fix array access with signed variable test
selftests/bpf: Add test for signed 32-bit bound check bug
bpf: Fix propagation of 32-bit signed bounds from 64-bit bounds.
MAINTAINERS: Add entry for Marvell Prestera Ethernet Switch driver
net: sched: Fix dump of MPLS_OPT_LSE_LABEL attribute in cls_flower
net/mlx4_en: Handle TX error CQE
net/mlx4_en: Avoid scheduling restart task if it is already running
tcp: fix cwnd-limited bug for TSO deferral where we send nothing
net: flow_offload: Fix memory leak for indirect flow block
tcp: Retain ECT bits for tos reflection
ethtool: fix stack overflow in ethnl_parse_bitset()
e1000e: fix S0ix flow to allow S0i3.2 subset entry
ice: avoid premature Rx buffer reuse
ixgbe: avoid premature Rx buffer reuse
i40e: avoid premature Rx buffer reuse
igb: avoid transmit queue timeout in xdp path
igb: use xdp_do_flush
igb: skb add metasize for xdp
...
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Alexei Starovoitov says:
====================
pull-request: bpf 2020-12-10
The following pull-request contains BPF updates for your *net* tree.
We've added 21 non-merge commits during the last 12 day(s) which contain
a total of 21 files changed, 163 insertions(+), 88 deletions(-).
The main changes are:
1) Fix propagation of 32-bit signed bounds from 64-bit bounds, from Alexei.
2) Fix ring_buffer__poll() return value, from Andrii.
3) Fix race in lwt_bpf, from Cong.
4) Fix test_offload, from Toke.
5) Various xsk fixes.
Please consider pulling these changes from:
git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf.git
Thanks a lot!
Also thanks to reporters, reviewers and testers of commits in this pull-request:
Cong Wang, Hulk Robot, Jakub Kicinski, Jean-Philippe Brucker, John
Fastabend, Magnus Karlsson, Maxim Mikityanskiy, Yonghong Song
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Prarit reported that depending on the affinity setting the
' irq $N: Affinity broken due to vector space exhaustion.'
message is showing up in dmesg, but the vector space on the CPUs in the
affinity mask is definitely not exhausted.
Shung-Hsi provided traces and analysis which pinpoints the problem:
The ordering of trying to assign an interrupt vector in
assign_irq_vector_any_locked() is simply wrong if the interrupt data has a
valid node assigned. It does:
1) Try the intersection of affinity mask and node mask
2) Try the node mask
3) Try the full affinity mask
4) Try the full online mask
Obviously #2 and #3 are in the wrong order as the requested affinity
mask has to take precedence.
In the observed cases #1 failed because the affinity mask did not contain
CPUs from node 0. That made it allocate a vector from node 0, thereby
breaking affinity and emitting the misleading message.
Revert the order of #2 and #3 so the full affinity mask without the node
intersection is tried before actually affinity is broken.
If no node is assigned then only the full affinity mask and if that fails
the full online mask is tried.
Fixes: d6ffc6ac83b1 ("x86/vector: Respect affinity mask in irq descriptor")
Reported-by: Prarit Bhargava <prarit@redhat.com>
Reported-by: Shung-Hsi Yu <shung-hsi.yu@suse.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Shung-Hsi Yu <shung-hsi.yu@suse.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/87ft4djtyp.fsf@nanos.tec.linutronix.de
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We've been seeing failures with xfstests generic/091 and generic/263
when using READ_PLUS. I've made some progress on these issues, and the
tests fail later on but still don't pass. Let's disable READ_PLUS by
default until we can work out what is going on.
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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Since commit b4868b44c5628 ("NFSv4: Wait for stateid updates after
CLOSE/OPEN_DOWNGRADE"), every inter server copy operation suffers 5
seconds delay regardless of the size of the copy. The delay is from
nfs_set_open_stateid_locked when the check by nfs_stateid_is_sequential
fails because the seqid in both nfs4_state and nfs4_stateid are 0.
Fix __nfs42_ssc_open to delay setting of NFS_OPEN_STATE in nfs4_state,
until after the call to update_open_stateid, to indicate this is the 1st
open. This fix is part of a 2 patches, the other patch is the fix in the
source server to return the stateid for COPY_NOTIFY request with seqid 1
instead of 0.
Fixes: ce0887ac96d3 ("NFSD add nfs4 inter ssc to nfsd4_copy")
Signed-off-by: Dai Ngo <dai.ngo@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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By switching to an XFS-backed export, I am able to reproduce the
ibcomp worker crash on my client with xfstests generic/013.
For the failing LISTXATTRS operation, xdr_inline_pages() is called
with page_len=12 and buflen=128.
- When ->send_request() is called, rpcrdma_marshal_req() does not
set up a Reply chunk because buflen is smaller than the inline
threshold. Thus rpcrdma_convert_iovs() does not get invoked at
all and the transport's XDRBUF_SPARSE_PAGES logic is not invoked
on the receive buffer.
- During reply processing, rpcrdma_inline_fixup() tries to copy
received data into rq_rcv_buf->pages because page_len is positive.
But there are no receive pages because rpcrdma_marshal_req() never
allocated them.
The result is that the ibcomp worker faults and dies. Sometimes that
causes a visible crash, and sometimes it results in a transport hang
without other symptoms.
RPC/RDMA's XDRBUF_SPARSE_PAGES support is not entirely correct, and
should eventually be fixed or replaced. However, my preference is
that upper-layer operations should explicitly allocate their receive
buffers (using GFP_KERNEL) when possible, rather than relying on
XDRBUF_SPARSE_PAGES.
Reported-by: Olga kornievskaia <kolga@netapp.com>
Suggested-by: Olga kornievskaia <kolga@netapp.com>
Fixes: c10a75145feb ("NFSv4.2: add the extended attribute proc functions.")
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Reviewed-by: Olga kornievskaia <kolga@netapp.com>
Reviewed-by: Frank van der Linden <fllinden@amazon.com>
Tested-by: Olga kornievskaia <kolga@netapp.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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The test program udpgso_bench_rx always invokes the poll()
syscall with a timeout of 10ms. If a larger timeout is specified
via the command line, udpgso_bench_rx is supposed to do multiple
poll() calls till the timeout is expired or an event is received.
Currently the poll() loop errors out after the first invocation with
no events, and may causes self-tests failure alike:
failed
GRO with custom segment size ./udpgso_bench_rx: poll: 0x0 expected 0x1
This change addresses the issue allowing the poll() loop to consume
all the configured timeout.
Fixes: ada641ff6ed3 ("selftests: fixes for UDP GRO")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The verifier trace changed following a bugfix. After checking the 64-bit
sign, only the upper bit mask is known, not bit 31. Update the test
accordingly.
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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The test fails because of a recent fix to the verifier, even though this
program is valid. In details what happens is:
7: (61) r1 = *(u32 *)(r0 +0)
Load a 32-bit value, with signed bounds [S32_MIN, S32_MAX]. The bounds
of the 64-bit value are [0, U32_MAX]...
8: (65) if r1 s> 0xffffffff goto pc+1
... therefore this is always true (the operand is sign-extended).
10: (b4) w2 = 11
11: (6d) if r2 s> r1 goto pc+1
When true, the 64-bit bounds become [0, 10]. The 32-bit bounds are still
[S32_MIN, 10].
13: (64) w1 <<= 2
Because this is a 32-bit operation, the verifier propagates the new
32-bit bounds to the 64-bit ones, and the knowledge gained from insn 11
is lost.
14: (0f) r0 += r1
15: (7a) *(u64 *)(r0 +0) = 4
Then the verifier considers r0 unbounded here, rejecting the test. To
make the test work, change insn 8 to check the sign of the 32-bit value.
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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After a 32-bit load followed by a branch, the verifier would reduce the
maximum bound of the register to 0x7fffffff, allowing a user to bypass
bound checks. Ensure such a program is rejected.
In the second test, the 64-bit compare should not sufficient to
determine whether the signed 32-bit lower bound is 0, so the verifier
should reject the second branch.
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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The 64-bit signed bounds should not affect 32-bit signed bounds unless the
verifier knows that upper 32-bits are either all 1s or all 0s. For example the
register with smin_value==1 doesn't mean that s32_min_value is also equal to 1,
since smax_value could be larger than 32-bit subregister can hold.
The verifier refines the smax/s32_max return value from certain helpers in
do_refine_retval_range(). Teach the verifier to recognize that smin/s32_min
value is also bounded. When both smin and smax bounds fit into 32-bit
subregister the verifier can propagate those bounds.
Fixes: 3f50f132d840 ("bpf: Verifier, do explicit ALU32 bounds tracking")
Reported-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Pull rdma fixes from Jason Gunthorpe:
"Two user triggerable crashers and a some EFA related regressions:
- Syzkaller found a bug in CM
- Restore access to the GID table and fix modify_qp for EFA
- Crasher in qedr"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
RDMA/cm: Fix an attempt to use non-valid pointer when cleaning timewait
RDMA/core: Fix empty gid table for non IB/RoCE devices
RDMA/efa: Use the correct current and new states in modify QP
RDMA/qedr: iWARP invalid(zero) doorbell address fix
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media fixes from Mauro Carvalho Chehab:
|
