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Stephen Rothwell reported that the objtool cross-build breaks on
non-x86 hosts:
> tools/arch/x86/include/asm/asm.h:185:24: error: invalid register name for 'current_stack_pointer'
> 185 | register unsigned long current_stack_pointer asm(_ASM_SP);
> | ^~~~~~~~~~~~~~~~~~~~~
The PowerPC host obviously doesn't know much about x86 register names.
Protect the kernel-specific bits of <asm/asm.h>, so that it can be
included by tooling and cross-built.
Reported-by: Stephen Rothwell <[email protected]>
Reviewed-by: H. Peter Anvin <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
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ACPI 6.4 introduced the "SpaLocationCookie" to the NFIT "System Physical
Address (SPA) Range Structure". The presence of that new field is
indicated by the ACPI_NFIT_LOCATION_COOKIE_VALID flag. Pre-ACPI-6.4
firmware implementations omit the flag and maintain the original size of
the structure.
Update the implementation to check that flag to determine the size
rather than the ACPI 6.4 compliant definition of 'struct
acpi_nfit_system_address' from the Linux ACPICA definitions.
Update the test infrastructure for the new expectations as well, i.e.
continue to emulate the ACPI 6.3 definition of that structure.
Without this fix the kernel fails to validate 'SPA' structures and this
leads to a crash in nfit_get_smbios_id() since that routine assumes that
SPAs are valid if it finds valid SMBIOS tables.
BUG: unable to handle page fault for address: ffffffffffffffa8
[..]
Call Trace:
skx_get_nvdimm_info+0x56/0x130 [skx_edac]
skx_get_dimm_config+0x1f5/0x213 [skx_edac]
skx_register_mci+0x132/0x1c0 [skx_edac]
Cc: Bob Moore <[email protected]>
Cc: Erik Kaneda <[email protected]>
Fixes: cf16b05c607b ("ACPICA: ACPI 6.4: NFIT: add Location Cookie field")
Reported-by: Yi Zhang <[email protected]>
Tested-by: Yi Zhang <[email protected]>
Reviewed-by: Rafael J. Wysocki <[email protected]>
Link: https://lore.kernel.org/r/162037273007.1195827.10907249070709169329.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Dan Williams <[email protected]>
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The sparse tool complains as follows:
tools/testing/nvdimm/test/iomap.c:65:14: warning:
symbol '__nfit_test_ioremap' was not declared. Should it be static?
This symbol is not used outside of iomap.c, so this
commit marks it static.
Reported-by: Hulk Robot <[email protected]>
Signed-off-by: Zou Wei <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dan Williams <[email protected]>
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Currently x86 kernel cross-compiled on big endian system fails at boot with:
kernel BUG at arch/x86/kernel/alternative.c:258!
Corresponding bug condition look like the following:
BUG_ON(feature >= (NCAPINTS + NBUGINTS) * 32);
Fix that by converting alternative feature/cpuid to target endianness.
Fixes: 9bc0bb50727c ("objtool/x86: Rewrite retpoline thunk calls")
Signed-off-by: Vasily Gorbik <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Acked-by: Peter Zijlstra <[email protected]>
Link: https://lore.kernel.org/r/patch-2.thread-6c9df9.git-6c9df9a8098d.your-ad-here.call-01620841104-ext-2554@work.hours
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Currently x86 cross-compilation fails on big endian system with:
x86_64-cross-ld: init/main.o: invalid string offset 488112128 >= 6229 for section `.strtab'
Mark new ELF data in elf_create_undef_symbol() as symbol, so that libelf
does endianness handling correctly.
Fixes: 2f2f7e47f052 ("objtool: Add elf_create_undef_symbol()")
Signed-off-by: Vasily Gorbik <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Acked-by: Peter Zijlstra <[email protected]>
Link: https://lore.kernel.org/r/patch-1.thread-6c9df9.git-d39264656387.your-ad-here.call-01620841104-ext-2554@work.hours
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Improve futex timeout testing by checking all the operations that
supports timeout and their available modes.
Signed-off-by: André Almeida <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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When building selftests, the build system will install uapi linux
headers at usr/include in kernel source's root directory. When building
with a different output folder, the headers will be installed at
kselftests/usr/include.
Add both paths so we can build the tests using up-to-date headers.
Currently, this is uncommon to happen since it's rare to find a
build system with an outdated futex header, but it happens
when testing new futex operations.
Signed-off-by: André Almeida <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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Add objtool --stats to count the jump_label sites it encounters.
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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When a jump_entry::key has bit1 set, rewrite the instruction to be a
NOP. This allows the compiler/assembler to emit JMP (and thus decide
on which encoding to use).
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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Teach objtool about the the low bits in the struct static_key pointer.
That is, the low two bits of @key in:
struct jump_entry {
s32 code;
s32 target;
long key;
}
as found in the __jump_table section. Since @key has a relocation to
the variable (to be resolved by the linker), the low two bits will be
reflected in the relocation's addend.
As such, find the reloc and store the addend, such that we can access
these bits.
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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Currently objtool has 5 hashtables and sizes them 16 or 20 bits
depending on the --vmlinux argument.
However, a single side doesn't really work well for the 5 tables,
which among them, cover 3 different uses. Also, while vmlinux is
larger, there is still a very wide difference between a defconfig and
allyesconfig build, which again isn't optimally covered by a single
size.
Another aspect is the cost of elf_hash_init(), which for large tables
dominates the runtime for small input files. It turns out that all it
does it assign NULL, something that is required when using malloc().
However, when we allocate memory using mmap(), we're guaranteed to get
zero filled pages.
Therefore, rewrite the whole thing to:
1) use more dynamic sized tables, depending on the input file,
2) avoid the need for elf_hash_init() entirely by using mmap().
This speeds up a regular kernel build (100s to 98s for
x86_64-defconfig), and potentially dramatically speeds up vmlinux
processing.
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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Provides a selftest and examples of using the interface.
[peterz: updated to not use sched_debug]
Signed-off-by: Chris Hyser <[email protected]>
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Tested-by: Don Hiatt <[email protected]>
Tested-by: Hongyu Ning <[email protected]>
Tested-by: Vincent Guittot <[email protected]>
Link: https://lkml.kernel.org/r/[email protected]
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This patch provides support for setting and copying core scheduling
'task cookies' between threads (PID), processes (TGID), and process
groups (PGID).
The value of core scheduling isn't that tasks don't share a core,
'nosmt' can do that. The value lies in exploiting all the sharing
opportunities that exist to recover possible lost performance and that
requires a degree of flexibility in the API.
From a security perspective (and there are others), the thread,
process and process group distinction is an existent hierarchal
categorization of tasks that reflects many of the security concerns
about 'data sharing'. For example, protecting against cache-snooping
by a thread that can just read the memory directly isn't all that
useful.
With this in mind, subcommands to CREATE/SHARE (TO/FROM) provide a
mechanism to create and share cookies. CREATE/SHARE_TO specify a
target pid with enum pidtype used to specify the scope of the targeted
tasks. For example, PIDTYPE_TGID will share the cookie with the
process and all of it's threads as typically desired in a security
scenario.
API:
prctl(PR_SCHED_CORE, PR_SCHED_CORE_GET, tgtpid, pidtype, &cookie)
prctl(PR_SCHED_CORE, PR_SCHED_CORE_CREATE, tgtpid, pidtype, NULL)
prctl(PR_SCHED_CORE, PR_SCHED_CORE_SHARE_TO, tgtpid, pidtype, NULL)
prctl(PR_SCHED_CORE, PR_SCHED_CORE_SHARE_FROM, srcpid, pidtype, NULL)
where 'tgtpid/srcpid == 0' implies the current process and pidtype is
kernel enum pid_type {PIDTYPE_PID, PIDTYPE_TGID, PIDTYPE_PGID, ...}.
For return values, EINVAL, ENOMEM are what they say. ESRCH means the
tgtpid/srcpid was not found. EPERM indicates lack of PTRACE permission
access to tgtpid/srcpid. ENODEV indicates your machines lacks SMT.
[peterz: complete rewrite]
Signed-off-by: Chris Hyser <[email protected]>
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Tested-by: Don Hiatt <[email protected]>
Tested-by: Hongyu Ning <[email protected]>
Tested-by: Vincent Guittot <[email protected]>
Link: https://lkml.kernel.org/r/[email protected]
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Daniel Borkmann says:
====================
pull-request: bpf 2021-05-11
The following pull-request contains BPF updates for your *net* tree.
We've added 13 non-merge commits during the last 8 day(s) which contain
a total of 21 files changed, 817 insertions(+), 382 deletions(-).
The main changes are:
1) Fix multiple ringbuf bugs in particular to prevent writable mmap of
read-only pages, from Andrii Nakryiko & Thadeu Lima de Souza Cascardo.
2) Fix verifier alu32 known-const subregister bound tracking for bitwise
operations and/or/xor, from Daniel Borkmann.
3) Reject trampoline attachment for functions with variable arguments,
and also add a deny list of other forbidden functions, from Jiri Olsa.
4) Fix nested bpf_bprintf_prepare() calls used by various helpers by
switching to per-CPU buffers, from Florent Revest.
5) Fix kernel compilation with BTF debug info on ppc64 due to pahole
missing TCP-CC functions like cubictcp_init, from Martin KaFai Lau.
6) Add a kconfig entry to provide an option to disallow unprivileged
BPF by default, from Daniel Borkmann.
7) Fix libbpf compilation for older libelf when GELF_ST_VISIBILITY()
macro is not available, from Arnaldo Carvalho de Melo.
8) Migrate test_tc_redirect to test_progs framework as prep work
for upcoming skb_change_head() fix & selftest, from Jussi Maki.
9) Fix a libbpf segfault in add_dummy_ksym_var() if BTF is not
present, from Ian Rogers.
10) Fix tx_only micro-benchmark in xdpsock BPF sample with proper frame
size, from Magnus Karlsson.
====================
Signed-off-by: David S. Miller <[email protected]>
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As discussed in [0], this ports test_tc_redirect.sh to the test_progs
framework and removes the old test.
This makes it more in line with rest of the tests and makes it possible
to run this test case with vmtest.sh and under the bpf CI.
The upcoming skb_change_head() helper fix in [0] is depending on it and
extending the test case to redirect a packet from L3 device to veth.
[0] https://lore.kernel.org/bpf/[email protected]
Signed-off-by: Jussi Maki <[email protected]>
Signed-off-by: Daniel Borkmann <[email protected]>
Link: https://lore.kernel.org/bpf/[email protected]
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Where that macro isn't available.
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
Signed-off-by: Daniel Borkmann <[email protected]>
Link: https://lore.kernel.org/bpf/[email protected]
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git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux
Pull perf tools fixes from Arnaldo Carvalho de Melo:
- Fix swapping of cpu_map and stat_config records.
- Fix dynamic libbpf linking.
- Disallow -c and -F option at the same time in 'perf record'.
- Update headers with the kernel originals.
- Silence warning for JSON ArchStd files.
- Fix a build error on arm64 with clang.
* tag 'perf-tools-fixes-for-v5.13-2021-05-10' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
tools headers UAPI: Sync perf_event.h with the kernel sources
tools headers cpufeatures: Sync with the kernel sources
tools include UAPI powerpc: Sync errno.h with the kernel headers
tools arch: Update arch/x86/lib/mem{cpy,set}_64.S copies used in 'perf bench mem memcpy'
tools headers UAPI: Sync linux/prctl.h with the kernel sources
tools headers UAPI: Sync files changed by landlock, quotactl_path and mount_settattr new syscalls
perf tools: Fix a build error on arm64 with clang
tools headers kvm: Sync kvm headers with the kernel sources
tools headers UAPI: Sync linux/kvm.h with the kernel sources
perf tools: Fix dynamic libbpf link
perf session: Fix swapping of cpu_map and stat_config records
perf jevents: Silence warning for ArchStd files
perf record: Disallow -c and -F option at the same time
tools arch x86: Sync the msr-index.h copy with the kernel sources
tools headers UAPI: Sync drm/i915_drm.h with the kernel sources
tools headers UAPI: Update tools's copy of drm.h headers
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Pull kvm fixes from Paolo Bonzini:
- Lots of bug fixes.
- Fix virtualization of RDPID
- Virtualization of DR6_BUS_LOCK, which on bare metal is new to this
release
- More nested virtualization migration fixes (nSVM and eVMCS)
- Fix for KVM guest hibernation
- Fix for warning in SEV-ES SRCU usage
- Block KVM from loading on AMD machines with 5-level page tables, due
to the APM not mentioning how host CR4.LA57 exactly impacts the
guest.
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (48 commits)
KVM: SVM: Move GHCB unmapping to fix RCU warning
KVM: SVM: Invert user pointer casting in SEV {en,de}crypt helpers
kvm: Cap halt polling at kvm->max_halt_poll_ns
tools/kvm_stat: Fix documentation typo
KVM: x86: Prevent deadlock against tk_core.seq
KVM: x86: Cancel pvclock_gtod_work on module removal
KVM: x86: Prevent KVM SVM from loading on kernels with 5-level paging
KVM: X86: Expose bus lock debug exception to guest
KVM: X86: Add support for the emulation of DR6_BUS_LOCK bit
KVM: PPC: Book3S HV: Fix conversion to gfn-based MMU notifier callbacks
KVM: x86: Hide RDTSCP and RDPID if MSR_TSC_AUX probing failed
KVM: x86: Tie Intel and AMD behavior for MSR_TSC_AUX to guest CPU model
KVM: x86: Move uret MSR slot management to common x86
KVM: x86: Export the number of uret MSRs to vendor modules
KVM: VMX: Disable loading of TSX_CTRL MSR the more conventional way
KVM: VMX: Use common x86's uret MSR list as the one true list
KVM: VMX: Use flag to indicate "active" uret MSRs instead of sorting list
KVM: VMX: Configure list of user return MSRs at module init
KVM: x86: Add support for RDPID without RDTSCP
KVM: SVM: Probe and load MSR_TSC_AUX regardless of RDTSCP support in host
...
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To pick up the changes in:
2b26f0aa004995f4 ("perf: Support only inheriting events if cloned with CLONE_THREAD")
2e498d0a74e5b88a ("perf: Add support for event removal on exec")
547b60988e631f74 ("perf: aux: Add flags for the buffer format")
55bcf6ef314ae8ba ("perf: Extend PERF_TYPE_HARDWARE and PERF_TYPE_HW_CACHE")
7dde51767ca5339e ("perf: aux: Add CoreSight PMU buffer formats")
97ba62b278674293 ("perf: Add support for SIGTRAP on perf events")
d0d1dd628527c77d ("perf core: Add PERF_COUNT_SW_CGROUP_SWITCHES event")
Also change the expected sizeof(struct perf_event_attr) from 120 to 128 due to
fields being added for the SIGTRAP changes.
Addressing this perf build warning:
Warning: Kernel ABI header at 'tools/include/uapi/linux/perf_event.h' differs from latest version at 'include/uapi/linux/perf_event.h'
diff -u tools/include/uapi/linux/perf_event.h include/uapi/linux/perf_event.h
Cc: Kan Liang <[email protected]>
Cc: Marco Elver <[email protected]>
Cc: Mathieu Poirier <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Suzuki K Poulose <[email protected]>
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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To pick the changes from:
4e6292114c741221 ("x86/paravirt: Add new features for paravirt patching")
a161545ab53b174c ("x86/cpufeatures: Enumerate Intel Hybrid Technology feature bit")
a89dfde3dc3c2dbf ("x86: Remove dynamic NOP selection")
b8921dccf3b25798 ("x86/cpufeatures: Add SGX1 and SGX2 sub-features")
f21d4d3b97a86035 ("x86/cpufeatures: Enumerate #DB for bus lock detection")
f333374e108e7e4c ("x86/cpufeatures: Add the Virtual SPEC_CTRL feature")
This only causes these perf files to be rebuilt:
CC /tmp/build/perf/bench/mem-memcpy-x86-64-asm.o
CC /tmp/build/perf/bench/mem-memset-x86-64-asm.o
And addresses this perf build warning:
Warning: Kernel ABI header at 'tools/arch/x86/include/asm/cpufeatures.h' differs from latest version at 'arch/x86/include/asm/cpufeatures.h'
diff -u tools/arch/x86/include/asm/cpufeatures.h arch/x86/include/asm/cpufeatures.h
Cc: Babu Moger <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Fenghua Yu <[email protected]>
Cc: Juergen Gross <[email protected]>
Cc: Paolo Bonzini <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Ricardo Neri <[email protected]>
Cc: Sean Christopherson <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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To pick the change in:
7de21e679e6a789f ("powerpc: fix EDEADLOCK redefinition error in uapi/asm/errno.h")
That will make the errno number -> string tables to pick this change on powerpc.
Silencing this perf build warning:
Warning: Kernel ABI header at 'tools/arch/powerpc/include/uapi/asm/errno.h' differs from latest version at 'arch/powerpc/include/uapi/asm/errno.h'
diff -u tools/arch/powerpc/include/uapi/asm/errno.h arch/powerpc/include/uapi/asm/errno.h
Cc: Michael Ellerman <[email protected]>
Cc: Tony Ambardar <[email protected]>
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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mem memcpy'
To bring in the change made in this cset:
5e21a3ecad1500e3 ("x86/alternative: Merge include files")
This just silences these perf tools build warnings, no change in the tools:
Warning: Kernel ABI header at 'tools/arch/x86/lib/memcpy_64.S' differs from latest version at 'arch/x86/lib/memcpy_64.S'
diff -u tools/arch/x86/lib/memcpy_64.S arch/x86/lib/memcpy_64.S
Warning: Kernel ABI header at 'tools/arch/x86/lib/memset_64.S' differs from latest version at 'arch/x86/lib/memset_64.S'
diff -u tools/arch/x86/lib/memset_64.S arch/x86/lib/memset_64.S
Cc: Borislav Petkov <[email protected]>
Cc: Juergen Gross <[email protected]>
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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To pick a new prctl introduced in:
201698626fbca1cf ("arm64: Introduce prctl(PR_PAC_{SET,GET}_ENABLED_KEYS)")
That results in
$ grep prctl tools/perf/trace/beauty/*.sh
tools/perf/trace/beauty/prctl_option.sh:printf "static const char *prctl_options[] = {\n"
tools/perf/trace/beauty/prctl_option.sh:egrep $regex ${header_dir}/prctl.h | grep -v PR_SET_PTRACER | \
tools/perf/trace/beauty/prctl_option.sh:printf "static const char *prctl_set_mm_options[] = {\n"
tools/perf/trace/beauty/prctl_option.sh:egrep $regex ${header_dir}/prctl.h | \
tools/perf/trace/beauty/x86_arch_prctl.sh:prctl_arch_header=${x86_header_dir}/prctl.h
tools/perf/trace/beauty/x86_arch_prctl.sh: printf "#define x86_arch_prctl_codes_%d_offset %s\n" $idx $first_entry
tools/perf/trace/beauty/x86_arch_prctl.sh: printf "static const char *x86_arch_prctl_codes_%d[] = {\n" $idx
tools/perf/trace/beauty/x86_arch_prctl.sh: egrep -q $regex ${prctl_arch_header} && \
tools/perf/trace/beauty/x86_arch_prctl.sh: (egrep $regex ${prctl_arch_header} | \
$ tools/perf/trace/beauty/prctl_option.sh > before
$ cp include/uapi/linux/prctl.h tools/include/uapi/linux/prctl.h
$ tools/perf/trace/beauty/prctl_option.sh > after
$ diff -u before after
--- before 2021-05-09 10:06:10.064559675 -0300
+++ after 2021-05-09 10:06:21.319791396 -0300
@@ -54,6 +54,8 @@
[57] = "SET_IO_FLUSHER",
[58] = "GET_IO_FLUSHER",
[59] = "SET_SYSCALL_USER_DISPATCH",
+ [60] = "PAC_SET_ENABLED_KEYS",
+ [61] = "PAC_GET_ENABLED_KEYS",
};
static const char *prctl_set_mm_options[] = {
[1] = "START_CODE",
$
Now users can do:
# perf trace -e syscalls:sys_enter_prctl --filter "option==PAC_GET_ENABLED_KEYS"
^C#
# trace -v -e syscalls:sys_enter_prctl --filter "option==PAC_GET_ENABLED_KEYS"
New filter for syscalls:sys_enter_prctl: (option==0x3d) && (common_pid != 5519 && common_pid != 3404)
^C#
And also when prctl appears in a session, its options will be
translated to the string.
Cc: Catalin Marinas <[email protected]>
Cc: Peter Collingbourne <[email protected]>
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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mount_settattr new syscalls
To pick the changes in these csets:
a49f4f81cb48925e ("arch: Wire up Landlock syscalls")
2a1867219c7b27f9 ("fs: add mount_setattr()")
fa8b90070a80bb1a ("quota: wire up quotactl_path")
That silences these perf build warnings and add support for those new
syscalls in tools such as 'perf trace'.
For instance, this is now possible:
# ~acme/bin/perf trace -v -e landlock*
event qualifier tracepoint filter: (common_pid != 129365 && common_pid != 3502) && (id == 444 || id == 445 || id == 446)
^C#
That is tha filter expression attached to the raw_syscalls:sys_{enter,exit}
tracepoints.
$ grep landlock tools/perf/arch/x86/entry/syscalls/syscall_64.tbl
444 common landlock_create_ruleset sys_landlock_create_ruleset
445 common landlock_add_rule sys_landlock_add_rule
446 common landlock_restrict_self sys_landlock_restrict_self
$
This addresses these perf build warnings:
Warning: Kernel ABI header at 'tools/include/uapi/asm-generic/unistd.h' differs from latest version at 'include/uapi/asm-generic/unistd.h'
diff -u tools/include/uapi/asm-generic/unistd.h include/uapi/asm-generic/unistd.h
Warning: Kernel ABI header at 'tools/perf/arch/x86/entry/syscalls/syscall_64.tbl' differs from latest version at 'arch/x86/entry/syscalls/syscall_64.tbl'
diff -u tools/perf/arch/x86/entry/syscalls/syscall_64.tbl arch/x86/entry/syscalls/syscall_64.tbl
Warning: Kernel ABI header at 'tools/perf/arch/powerpc/entry/syscalls/syscall.tbl' differs from latest version at 'arch/powerpc/kernel/syscalls/syscall.tbl'
diff -u tools/perf/arch/powerpc/entry/syscalls/syscall.tbl arch/powerpc/kernel/syscalls/syscall.tbl
Warning: Kernel ABI header at 'tools/perf/arch/s390/entry/syscalls/syscall.tbl' differs from latest version at 'arch/s390/kernel/syscalls/syscall.tbl'
diff -u tools/perf/arch/s390/entry/syscalls/syscall.tbl arch/s390/kernel/syscalls/syscall.tbl
Warning: Kernel ABI header at 'tools/perf/arch/mips/entry/syscalls/syscall_n64.tbl' differs from latest version at 'arch/mips/kernel/syscalls/syscall_n64.tbl'
diff -u tools/perf/arch/mips/entry/syscalls/syscall_n64.tbl arch/mips/kernel/syscalls/syscall_n64.tbl
Cc: Christian Brauner <[email protected]>
Cc: James Morris <[email protected]>
Cc: Jan Kara <[email protected]>
Cc: Mickaël Salaün <[email protected]>
Cc: Sascha Hauer <[email protected]>
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Since clang's -Wmissing-field-initializers warns if a data
structure is initialized with a signle NULL as below,
----
tools/perf $ make CC=clang LLVM=1
...
arch/arm64/util/kvm-stat.c:74:9: error: missing field 'ops' initializer [-Werror,-Wmissing-field-initializers]
{ NULL },
^
1 error generated.
----
add another field initializer expressly as same as other
arch's kvm-stat.c code.
Signed-off-by: Masami Hiramatsu <[email protected]>
Cc: Anders Roxell <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Sergey Senozhatsky <[email protected]>
Link: http://lore.kernel.org/lkml/162037767540.94840.15758657049033010518.stgit@devnote2
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
To pick the changes in:
3c0c2ad1ae75963c ("KVM: VMX: Add basic handling of VM-Exit from SGX enclave")
None of them trigger any changes in tooling, this time this is just to silence
these perf build warnings:
Warning: Kernel ABI header at 'tools/arch/x86/include/uapi/asm/vmx.h' differs from latest version at 'arch/x86/include/uapi/asm/vmx.h'
diff -u tools/arch/x86/include/uapi/asm/vmx.h arch/x86/include/uapi/asm/vmx.h
Cc: Paolo Bonzini <[email protected]>
Cc: Sean Christopherson <[email protected]>
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
To pick the changes in:
15fb7de1a7f5af0d ("KVM: SVM: Add KVM_SEV_RECEIVE_UPDATE_DATA command")
3bf725699bf62494 ("KVM: arm64: Add support for the KVM PTP service")
4cfdd47d6d95aca4 ("KVM: SVM: Add KVM_SEV SEND_START command")
54526d1fd59338fd ("KVM: x86: Support KVM VMs sharing SEV context")
5569e2e7a650dfff ("KVM: SVM: Add support for KVM_SEV_SEND_CANCEL command")
8b13c36493d8cb56 ("KVM: introduce KVM_CAP_SET_GUEST_DEBUG2")
af43cbbf954b50ca ("KVM: SVM: Add support for KVM_SEV_RECEIVE_START command")
d3d1af85e2c75bb5 ("KVM: SVM: Add KVM_SEND_UPDATE_DATA command")
fe7e948837f312d8 ("KVM: x86: Add capability to grant VM access to privileged SGX attribute")
That don't cause any change in tooling as it doesn't introduce any new
ioctl.
$ grep kvm tools/perf/trace/beauty/*.sh
tools/perf/trace/beauty/kvm_ioctl.sh:printf "static const char *kvm_ioctl_cmds[] = {\n"
tools/perf/trace/beauty/kvm_ioctl.sh:egrep $regex ${header_dir}/kvm.h | \
$
$ tools/perf/trace/beauty/kvm_ioctl.sh > before
$ cp include/uapi/linux/kvm.h tools/include/uapi/linux/kvm.h
$ tools/perf/trace/beauty/kvm_ioctl.sh > after
$ diff -u before after
$
This silences this perf build warning:
Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h'
diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h
Cc: Brijesh Singh <[email protected]>
Cc: Jianyong Wu <[email protected]>
Cc: Marc Zyngier <[email protected]>
Cc: Nathan Tempelman <[email protected]>
Cc: Paolo Bonzini <[email protected]>
Cc: Sean Christopherson <[email protected]>
Cc: Steve Rutherford <[email protected]>
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Justin reported broken build with LIBBPF_DYNAMIC=1.
When linking libbpf dynamically we need to use perf's
hashmap object, because it's not exported in libbpf.so
(only in libbpf.a).
Following build is now passing:
$ make LIBBPF_DYNAMIC=1
BUILD: Doing 'make -j8' parallel build
...
$ ldd perf | grep libbpf
libbpf.so.0 => /lib64/libbpf.so.0 (0x00007fa7630db000)
Fixes: eee19501926d ("perf tools: Grab a copy of libbpf's hashmap")
Reported-by: Justin M. Forbes <[email protected]>
Signed-off-by: Jiri Olsa <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Michael Petlan <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
'data' field in perf_record_cpu_map_data struct is 16-bit
wide and so should be swapped using bswap_16().
'nr' field in perf_record_stat_config struct should be
swapped before being used for size calculation.
Signed-off-by: Dmitry Koshelev <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
JSON files in the level 1 directory are used for ArchStd events (see
preprocess_arch_std_files), as such they shouldn't be warned about.
Signed-off-by: Ian Rogers <[email protected]>
Reviewed-by: John Garry <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Joakim Zhang <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Kim Phillips <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
It's confusing which one is effective when the both options are given.
The current code happens to use -c in this case but users might not be
aware of it. We can change it to complain about that instead of relying
on the implicit priority.
Before:
$ perf record -c 111111 -F 99 true
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.031 MB perf.data (8 samples) ]
$ perf evlist -F
cycles: sample_period=111111
$
After:
$ perf record -c 111111 -F 99 true
cannot set frequency and period at the same time
$
So this change can break existing usages, but I think it's rare to have
both options and it'd be better changing them.
Suggested-by: Alexey Alexandrov <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
To pick up the changes from these csets:
d0946a882e622022 ("perf/x86/intel: Hybrid PMU support for perf capabilities")
That cause no changes to tooling as it isn't adding any new MSR, just
some capabilities for a pre-existing one:
$ tools/perf/trace/beauty/tracepoints/x86_msr.sh > before
$ cp arch/x86/include/asm/msr-index.h tools/arch/x86/include/asm/msr-index.h
$ tools/perf/trace/beauty/tracepoints/x86_msr.sh > after
$ diff -u before after
$
Just silences this perf build warning:
Warning: Kernel ABI header at 'tools/arch/x86/include/asm/msr-index.h' differs from latest version at 'arch/x86/include/asm/msr-index.h'
diff -u tools/arch/x86/include/asm/msr-index.h arch/x86/include/asm/msr-index.h
Cc: Kan Liang <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
To pick the changes in:
b5b6f6a610127b17 ("drm/i915/gem: Drop legacy execbuffer support (v2)")
That don't result in any change in tooling as this is just adding a
comment.
Only silences this perf build warning:
Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs from latest version at 'include/uapi/drm/i915_drm.h'
diff -u tools/include/uapi/drm/i915_drm.h include/uapi/drm/i915_drm.h
Cc: Daniel Vetter <[email protected]>
Cc: Jason Ekstrand <[email protected]>
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Picking the changes from:
b603e810f740e76b ("drm/uapi: document kernel capabilities")
Doesn't result in any tooling changes:
$ tools/perf/trace/beauty/drm_ioctl.sh > before
$ cp include/uapi/drm/drm.h tools/include/uapi/drm/drm.h
$ tools/perf/trace/beauty/drm_ioctl.sh > after
$ diff -u before after
Silencing these perf build warnings:
Warning: Kernel ABI header at 'tools/include/uapi/drm/drm.h' differs from latest version at 'include/uapi/drm/drm.h'
diff -u tools/include/uapi/drm/drm.h include/uapi/drm/drm.h
Cc: Simon Ser <[email protected]>
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Use the new generalized _ASM_BYTES() macro from <asm/asm.h> instead of
the "home grown" _ASM_MK_NOP() in <asm/nops.h>.
Add <asm/asm.h> and update <asm/nops.h> in the tools directory...
Signed-off-by: H. Peter Anvin (Intel) <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
|
|
Explicitly include stddef.h when building the BTI tests so that we have
a definition of NULL, with at least some toolchains this is not done
implicitly by anything else:
test.c: In function ‘start’:
test.c:214:25: error: ‘NULL’ undeclared (first use in this function)
214 | sigaction(SIGILL, &sa, NULL);
| ^~~~
test.c:20:1: note: ‘NULL’ is defined in header ‘<stddef.h>’; did you forget to ‘#include <stddef.h>’?
Signed-off-by: Mark Brown <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Catalin Marinas <[email protected]>
|
|
The SYSCFG MSR continued being updated beyond the K8 family; drop the K8
name from it.
Suggested-by: Borislav Petkov <[email protected]>
Signed-off-by: Brijesh Singh <[email protected]>
Signed-off-by: Borislav Petkov <[email protected]>
Acked-by: Joerg Roedel <[email protected]>
Link: https://lkml.kernel.org/r/[email protected]
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull more Kbuild updates from Masahiro Yamada:
- Convert sh and sparc to use generic shell scripts to generate the
syscall headers
- refactor .gitignore files
- Update kernel/config_data.gz only when the content of the .config
is really changed, which avoids the unneeded re-link of vmlinux
- move "remove stale files" workarounds to scripts/remove-stale-files
- suppress unused-but-set-variable warnings by default for Clang
as well
- fix locale setting LANG=C to LC_ALL=C
- improve 'make distclean'
- always keep intermediate objects from scripts/link-vmlinux.sh
- move IF_ENABLED out of <linux/kconfig.h> to make it self-contained
- misc cleanups
* tag 'kbuild-v5.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (25 commits)
linux/kconfig.h: replace IF_ENABLED() with PTR_IF() in <linux/kernel.h>
kbuild: Don't remove link-vmlinux temporary files on exit/signal
kbuild: remove the unneeded comments for external module builds
kbuild: make distclean remove tag files in sub-directories
kbuild: make distclean work against $(objtree) instead of $(srctree)
kbuild: refactor modname-multi by using suffix-search
kbuild: refactor fdtoverlay rule
kbuild: parameterize the .o part of suffix-search
arch: use cross_compiling to check whether it is a cross build or not
kbuild: remove ARCH=sh64 support from top Makefile
.gitignore: prefix local generated files with a slash
kbuild: replace LANG=C with LC_ALL=C
Makefile: Move -Wno-unused-but-set-variable out of GCC only block
kbuild: add a script to remove stale generated files
kbuild: update config_data.gz only when the content of .config is changed
.gitignore: ignore only top-level modules.builtin
.gitignore: move tags and TAGS close to other tag files
kernel/.gitgnore: remove stale timeconst.h and hz.bc
usr/include: refactor .gitignore
genksyms: fix stale comment
...
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Networking fixes for 5.13-rc1, including fixes from bpf, can and
netfilter trees. Self-contained fixes, nothing risky.
Current release - new code bugs:
- dsa: ksz: fix a few bugs found by static-checker in the new driver
- stmmac: fix frame preemption handshake not triggering after
interface restart
Previous releases - regressions:
- make nla_strcmp handle more then one trailing null character
- fix stack OOB reads while fragmenting IPv4 packets in openvswitch
and net/sched
- sctp: do asoc update earlier in sctp_sf_do_dupcook_a
- sctp: delay auto_asconf init until binding the first addr
- stmmac: clear receive all(RA) bit when promiscuous mode is off
- can: mcp251x: fix resume from sleep before interface was brought up
Previous releases - always broken:
- bpf: fix leakage of uninitialized bpf stack under speculation
- bpf: fix masking negation logic upon negative dst register
- netfilter: don't assume that skb_header_pointer() will never fail
- only allow init netns to set default tcp cong to a restricted algo
- xsk: fix xp_aligned_validate_desc() when len == chunk_size to avoid
false positive errors
- ethtool: fix missing NLM_F_MULTI flag when dumping
- can: m_can: m_can_tx_work_queue(): fix tx_skb race condition
- sctp: fix a SCTP_MIB_CURRESTAB leak in sctp_sf_do_dupcook_b
- bridge: fix NULL-deref caused by a races between assigning
rx_handler_data and setting the IFF_BRIDGE_PORT bit
Latecomer:
- seg6: add counters support for SRv6 Behaviors"
* tag 'net-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (73 commits)
atm: firestream: Use fallthrough pseudo-keyword
net: stmmac: Do not enable RX FIFO overflow interrupts
mptcp: fix splat when closing unaccepted socket
i40e: Remove LLDP frame filters
i40e: Fix PHY type identifiers for 2.5G and 5G adapters
i40e: fix the restart auto-negotiation after FEC modified
i40e: Fix use-after-free in i40e_client_subtask()
i40e: fix broken XDP support
netfilter: nftables: avoid potential overflows on 32bit arches
netfilter: nftables: avoid overflows in nft_hash_buckets()
tcp: Specify cmsgbuf is user pointer for receive zerocopy.
mlxsw: spectrum_mr: Update egress RIF list before route's action
net: ipa: fix inter-EE IRQ register definitions
can: m_can: m_can_tx_work_queue(): fix tx_skb race condition
can: mcp251x: fix resume from sleep before interface was brought up
can: mcp251xfd: mcp251xfd_probe(): add missing can_rx_offload_del() in error path
can: mcp251xfd: mcp251xfd_probe(): fix an error pointer dereference in probe
netfilter: nftables: Fix a memleak from userdata error path in new objects
netfilter: remove BUG_ON() after skb_header_pointer()
netfilter: nfnetlink_osf: Fix a missing skb_header_pointer() NULL check
...
|
|
Makes the dash in front of option '-z' disappear in the generated
man-page.
Signed-off-by: Stefan Raspl <[email protected]>
Message-Id: <[email protected]>
Signed-off-by: Paolo Bonzini <[email protected]>
|
|
Clang's integrated assembler does not allow symbols with non-absolute
values to be reassigned. Modify the interrupt entry loop macro to be
compatible with IAS by using a label and an offset.
Cc: Jian Cai <[email protected]>
Signed-off-by: Bill Wendling <[email protected]>
References: https://lore.kernel.org/lkml/[email protected]/
Message-Id: <[email protected]>
Reviewed-by: Jim Mattson <[email protected]>
Signed-off-by: Paolo Bonzini <[email protected]>
|
|
eVMCS after restore
Add a test for the regression, introduced by commit f2c7ef3ba955
("KVM: nSVM: cancel KVM_REQ_GET_NESTED_STATE_PAGES on nested vmexit"). When
L2->L1 exit is forced immediately after restoring nested state,
KVM_REQ_GET_NESTED_STATE_PAGES request is cleared and VMCS12 changes
(e.g. fresh RIP) are not reflected to eVMCS. The consequent nested
vCPU run gets broken.
Utilize NMI injection to do the job.
Signed-off-by: Vitaly Kuznetsov <[email protected]>
Message-Id: <[email protected]>
Signed-off-by: Paolo Bonzini <[email protected]>
|
|
'run->exit_reason == KVM_EXIT_SHUTDOWN' check is not ideal as we may be
getting some unexpected exception. Directly check for #UD instead.
Signed-off-by: Vitaly Kuznetsov <[email protected]>
Message-Id: <[email protected]>
Signed-off-by: Paolo Bonzini <[email protected]>
|
|
Merge yet more updates from Andrew Morton:
"This is everything else from -mm for this merge window.
90 patches.
Subsystems affected by this patch series: mm (cleanups and slub),
alpha, procfs, sysctl, misc, core-kernel, bitmap, lib, compat,
checkpatch, epoll, isofs, nilfs2, hpfs, exit, fork, kexec, gcov,
panic, delayacct, gdb, resource, selftests, async, initramfs, ipc,
drivers/char, and spelling"
* emailed patches from Andrew Morton <[email protected]>: (90 commits)
mm: fix typos in comments
mm: fix typos in comments
treewide: remove editor modelines and cruft
ipc/sem.c: spelling fix
fs: fat: fix spelling typo of values
kernel/sys.c: fix typo
kernel/up.c: fix typo
kernel/user_namespace.c: fix typos
kernel/umh.c: fix some spelling mistakes
include/linux/pgtable.h: few spelling fixes
mm/slab.c: fix spelling mistake "disired" -> "desired"
scripts/spelling.txt: add "overflw"
scripts/spelling.txt: Add "diabled" typo
scripts/spelling.txt: add "overlfow"
arm: print alloc free paths for address in registers
mm/vmalloc: remove vwrite()
mm: remove xlate_dev_kmem_ptr()
drivers/char: remove /dev/kmem for good
mm: fix some typos and code style problems
ipc/sem.c: mundane typo fixes
...
|
|
The section "19) Editor modelines and other cruft" in
Documentation/process/coding-style.rst clearly says, "Do not include any
of these in source files."
I recently receive a patch to explicitly add a new one.
Let's do treewide cleanups, otherwise some people follow the existing code
and attempt to upstream their favoriate editor setups.
It is even nicer if scripts/checkpatch.pl can check it.
If we like to impose coding style in an editor-independent manner, I think
editorconfig (patch [1]) is a saner solution.
[1] https://lore.kernel.org/lkml/[email protected]/
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Masahiro Yamada <[email protected]>
Acked-by: Geert Uytterhoeven <[email protected]>
Reviewed-by: Miguel Ojeda <[email protected]> [auxdisplay]
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
|
|
'assert.h' included in 'sparsebit.c' is duplicated.
It is also included in the 161th line.
'string.h' included in 'mincore_selftest.c' is duplicated.
It is also included in the 15th line.
'sched.h' included in 'tlbie_test.c' is duplicated.
It is also included in the 33th line.
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Zhang Yunkai <[email protected]>
Cc: Paolo Bonzini <[email protected]>
Cc: Shuah Khan <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
|
|
Patch series "fs/epoll: restore user-visible behavior upon event ready".
This series tries to address a change in user visible behavior, reported
in https://bugzilla.kernel.org/show_bug.cgi?id=208943.
Epoll does not report an event to all the threads running epoll_wait()
on the same epoll descriptor. Unsurprisingly, this was bisected back to
339ddb53d373 (fs/epoll: remove unnecessary wakeups of nested epoll), which
has had various problems in the past, beyond only nested epoll usage.
This patch (of 2):
This incorporates the testcase originally reported in:
https://bugzilla.kernel.org/show_bug.cgi?id=208943
Which ensures an event is reported to all threads blocked on the same
epoll descriptor, otherwise only a single thread will receive the wakeup
once the event become ready.
Link: https://lkml.kernel.org/r/[email protected]
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Davidlohr Bueso <[email protected]>
Cc: Jason Baron <[email protected]>
Cc: Roman Penyaev <[email protected]>
Cc: Al Viro <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
|
|
Add fast paths to find_*_bit() functions as per kernel implementation.
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Yury Norov <[email protected]>
Acked-by: Rasmus Villemoes <[email protected]>
Cc: Alexey Klimov <[email protected]>
Cc: Andy Shevchenko <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: David Sterba <[email protected]>
Cc: Dennis Zhou <[email protected]>
Cc: Geert Uytterhoeven <[email protected]>
Cc: Jianpeng Ma <[email protected]>
Cc: Joe Perches <[email protected]>
Cc: John Paul Adrian Glaubitz <[email protected]>
Cc: Josh Poimboeuf <[email protected]>
Cc: Rich Felker <[email protected]>
Cc: Stefano Brivio <[email protected]>
Cc: Wei Yang <[email protected]>
Cc: Wolfram Sang <[email protected]>
Cc: Yoshinori Sato <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
|
|
Sync the implementation with recent kernel changes.
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Yury Norov <[email protected]>
Acked-by: Rasmus Villemoes <[email protected]>
Cc: Alexey Klimov <[email protected]>
Cc: Andy Shevchenko <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: David Sterba <[email protected]>
Cc: Dennis Zhou <[email protected]>
Cc: Geert Uytterhoeven <[email protected]>
Cc: Jianpeng Ma <[email protected]>
Cc: Joe Perches <[email protected]>
Cc: John Paul Adrian Glaubitz <[email protected]>
Cc: Josh Poimboeuf <[email protected]>
Cc: Rich Felker <[email protected]>
Cc: Stefano Brivio <[email protected]>
Cc: Wei Yang <[email protected]>
Cc: Wolfram Sang <[email protected]>
Cc: Yoshinori Sato <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
|
|
Sync implementation with the kernel and move the macro from
tools/include/linux/bitmap.h to tools/include/asm-generic/bitsperlong.h
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Yury Norov <[email protected]>
Acked-by: Rasmus Villemoes <[email protected]>
Cc: Alexey Klimov <[email protected]>
Cc: Andy Shevchenko <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: David Sterba <[email protected]>
Cc: Dennis Zhou <[email protected]>
Cc: Geert Uytterhoeven <[email protected]>
Cc: Jianpeng Ma <[email protected]>
Cc: Joe Perches <[email protected]>
Cc: John Paul Adrian Glaubitz <[email protected]>
Cc: Josh Poimboeuf <[email protected]>
Cc: Rich Felker <[email protected]>
Cc: Stefano Brivio <[email protected]>
Cc: Wei Yang <[email protected]>
Cc: Wolfram Sang <[email protected]>
Cc: Yoshinori Sato <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
|