Messages in this thread Patch in this message | | | From | arnaldo.melo@gmail ... | Date | Wed, 9 Feb 2022 14:38:54 -0300 | Subject | [PATCH 1/1] tools headers UAPI: Sync linux/perf_event.h with the kernel sources |
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Just FYI, carrying this in my tree:
---
To pick the trivial change in:
ddecd22878601a60 ("perf: uapi: Document perf_event_attr::sig_data truncation on 32 bit architectures")
Just adds a comment.
This silences 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: Marco Elver <elver@google.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/lkml/ Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> --- tools/include/uapi/linux/perf_event.h | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/tools/include/uapi/linux/perf_event.h b/tools/include/uapi/linux/perf_event.h index 1b65042ab1db8df4..82858b697c05a1d2 100644 --- a/tools/include/uapi/linux/perf_event.h +++ b/tools/include/uapi/linux/perf_event.h @@ -465,6 +465,8 @@ struct perf_event_attr { /* * User provided data if sigtrap=1, passed back to user via * siginfo_t::si_perf_data, e.g. to permit user to identify the event. + * Note, siginfo_t::si_perf_data is long-sized, and sig_data will be + * truncated accordingly on 32 bit architectures. */ __u64 sig_data; }; -- 2.34.1
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