linux-stable.git/tools, branch v6.16.5

perf symbol-minimal: Fix ehdr reading in filename__read_build_id

2025-09-04T14:55:30+00:00

[ Upstream commit ba0b7081f7a521d7c28b527a4f18666a148471e7 ]

The e_ident is part of the ehdr and so reading it a second time would
mean the read ehdr was displaced by 16-bytes. Switch from stdio to
open/read/lseek syscalls for similarity with the symbol-elf version of
the function and so that later changes can alter then open flags.

Fixes: fef8f648bb47 ("perf symbol: Fix use-after-free in filename__read_build_id")
Signed-off-by: Ian Rogers 
Link: https://lore.kernel.org/r/20250823000024.724394-2-irogers@google.com
Signed-off-by: Namhyung Kim 
Signed-off-by: Sasha Levin

rtla: Check pkg-config install

2025-09-04T14:55:28+00:00

[ Upstream commit 7b128f1d53dcaa324d4aa05d821a6bf4a7b203e7 ]

The tool pkg-config used to check libtraceevent and libtracefs, if not
installed, it will report the libs not found, even though they have
already been installed.

Before:
libtraceevent is missing. Please install libtraceevent-dev/libtraceevent-devel
libtracefs is missing. Please install libtracefs-dev/libtracefs-devel

After:
Makefile.config:10: *** Error: pkg-config needed by libtraceevent/libtracefs is missing
on this system, please install it.

Link: https://lore.kernel.org/20250808040527.2036023-2-chen.dylane@linux.dev
Fixes: 01474dc706ca ("tools/rtla: Use tools/build makefiles to build rtla")
Signed-off-by: Tao Chen 
Signed-off-by: Steven Rostedt (Google) 
Signed-off-by: Sasha Levin

tools/latency-collector: Check pkg-config install

2025-09-04T14:55:28+00:00

[ Upstream commit 26ebba25e210116053609f4c7ee701bffa7ebd7d ]

The tool pkg-config used to check libtraceevent and libtracefs, if not
installed, it will report the libs not found, even though they have
already been installed.

Before:
libtraceevent is missing. Please install libtraceevent-dev/libtraceevent-devel
libtracefs is missing. Please install libtracefs-dev/libtracefs-devel

After:
Makefile.config:10: *** Error: pkg-config needed by libtraceevent/libtracefs is missing
on this system, please install it.

Link: https://lore.kernel.org/20250808040527.2036023-1-chen.dylane@linux.dev
Fixes: 9d56c88e5225 ("tools/tracing: Use tools/build makefiles on latency-collector")
Signed-off-by: Tao Chen 
Signed-off-by: Steven Rostedt (Google) 
Signed-off-by: Sasha Levin

objtool/LoongArch: Get table size correctly if LTO is enabled

2025-08-28T14:34:48+00:00

[ Upstream commit a47bc954cf0eb51f2828e1607d169d487df7f11f ]

When compiling with LLVM and CONFIG_LTO_CLANG is set, there exist many
objtool warnings "sibling call from callable instruction with modified
stack frame".

For this special case, the related object file shows that there is no
generated relocation section '.rela.discard.tablejump_annotate' for the
table jump instruction jirl, thus objtool can not know that what is the
actual destination address.

It needs to do something on the LLVM side to make sure that there is the
relocation section '.rela.discard.tablejump_annotate' if LTO is enabled,
but in order to maintain compatibility for the current LLVM compiler,
this can be done in the kernel Makefile for now. Ensure it is aware of
linker with LTO, '--loongarch-annotate-tablejump' needs to be passed via
'-mllvm' to ld.lld.

Before doing the above changes, it should handle the special case of the
relocation section '.rela.discard.tablejump_annotate' to get the correct
table size first, otherwise there are many objtool warnings and errors
if LTO is enabled.

There are many different rodata for each function if LTO is enabled, it
is necessary to enhance get_rodata_table_size_by_table_annotate().

Fixes: b95f852d3af2 ("objtool/LoongArch: Add support for switch table")
Closes: https://lore.kernel.org/loongarch/20250731175655.GA1455142@ax162/
Reported-by: Nathan Chancellor 
Tested-by: Nathan Chancellor 
Signed-off-by: Tiezhu Yang 
Signed-off-by: Huacai Chen 
Signed-off-by: Sasha Levin

selftests: mptcp: sockopt: fix C23 extension warning

2025-08-28T14:34:32+00:00

commit 3259889fd3c0cc165b7e9ee375c789875dd32326 upstream.

GCC was complaining about the new label:

  mptcp_inq.c:79:2: warning: label followed by a declaration is a C23 extension [-Wc23-extensions]
     79 |         int err = getaddrinfo(node, service, hints, res);
        |         ^

  mptcp_sockopt.c:166:2: warning: label followed by a declaration is a C23 extension [-Wc23-extensions]
    166 |         int err = getaddrinfo(node, service, hints, res);
        |         ^

Simply declare 'err' before the label to avoid this warning.

Fixes: dd367e81b79a ("selftests: mptcp: sockopt: use IPPROTO_MPTCP for getaddrinfo")
Cc: stable@vger.kernel.org
Reviewed-by: Geliang Tang 
Signed-off-by: Matthieu Baerts (NGI0) 
Link: https://patch.msgid.link/20250815-net-mptcp-misc-fixes-6-17-rc2-v1-8-521fe9957892@kernel.org
Signed-off-by: Jakub Kicinski 
Signed-off-by: Greg Kroah-Hartman

selftests: mptcp: connect: fix C23 extension warning

2025-08-28T14:34:32+00:00

commit 2eefbed30d46d5e68593baf6b52923e00e7678af upstream.

GCC was complaining about the new label:

  mptcp_connect.c:187:2: warning: label followed by a declaration is a C23 extension [-Wc23-extensions]
    187 |         int err = getaddrinfo(node, service, hints, res);
        |         ^

Simply declare 'err' before the label to avoid this warning.

Fixes: a862771d1aa4 ("selftests: mptcp: use IPPROTO_MPTCP for getaddrinfo")
Cc: stable@vger.kernel.org
Reviewed-by: Geliang Tang 
Signed-off-by: Matthieu Baerts (NGI0) 
Link: https://patch.msgid.link/20250815-net-mptcp-misc-fixes-6-17-rc2-v1-7-521fe9957892@kernel.org
Signed-off-by: Jakub Kicinski 
Signed-off-by: Greg Kroah-Hartman

selftests: mptcp: pm: check flush doesn't reset limits

2025-08-28T14:34:32+00:00

commit 452690be7de2f91cc0de68cb9e95252875b33503 upstream.

This modification is linked to the parent commit where the received
ADD_ADDR limit was accidentally reset when the endpoints were flushed.

To validate that, the test is now flushing endpoints after having set
new limits, and before checking them.

The 'Fixes' tag here below is the same as the one from the previous
commit: this patch here is not fixing anything wrong in the selftests,
but it validates the previous fix for an issue introduced by this commit
ID.

Fixes: 01cacb00b35c ("mptcp: add netlink-based PM")
Cc: stable@vger.kernel.org
Reviewed-by: Mat Martineau 
Signed-off-by: Matthieu Baerts (NGI0) 
Link: https://patch.msgid.link/20250815-net-mptcp-misc-fixes-6-17-rc2-v1-3-521fe9957892@kernel.org
Signed-off-by: Jakub Kicinski 
Signed-off-by: Greg Kroah-Hartman

tools/nolibc: fix spelling of FD_SETBITMASK in FD_* macros

2025-08-20T16:41:42+00:00

commit a477629baa2a0e9991f640af418e8c973a1c08e3 upstream.

While nolibc-test does test syscalls, it doesn't test as much the rest
of the macros, and a wrong spelling of FD_SETBITMASK in commit
feaf75658783a broke programs using either FD_SET() or FD_CLR() without
being noticed. Let's fix these macros.

Fixes: feaf75658783a ("nolibc: fix fd_set type")
Cc: stable@vger.kernel.org # v6.2+
Acked-by: Thomas Weißschuh 
Signed-off-by: Willy Tarreau 
Signed-off-by: Greg Kroah-Hartman

tools/power turbostat: Handle cap_get_proc() ENOSYS

2025-08-20T16:41:31+00:00

[ Upstream commit d34fe509f5f76d9dc36291242d67c6528027ebbd ]

Kernels configured with CONFIG_MULTIUSER=n have no cap_get_proc().
Check for ENOSYS to recognize this case, and continue on to
attempt to access the requested MSRs (such as temperature).

Signed-off-by: Calvin Owens 
Signed-off-by: Len Brown 
Signed-off-by: Sasha Levin

tools/power turbostat: Fix build with musl

2025-08-20T16:41:31+00:00

[ Upstream commit 6ea0ec1b958a84aff9f03fb0ae4613a4d5bed3ea ]

turbostat.c: In function 'parse_int_file':
    turbostat.c:5567:19: error: 'PATH_MAX' undeclared (first use in this function)
     5567 |         char path[PATH_MAX];
          |                   ^~~~~~~~

    turbostat.c: In function 'probe_graphics':
    turbostat.c:6787:19: error: 'PATH_MAX' undeclared (first use in this function)
     6787 |         char path[PATH_MAX];
          |                   ^~~~~~~~

Signed-off-by: Calvin Owens 
Reviewed-by: Artem Bityutskiy 
Signed-off-by: Len Brown 
Signed-off-by: Sasha Levin