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| author | Thorsten Blum <thorsten.blum@linux.dev> | 2025-03-05 15:31:34 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2025-03-05 20:28:22 +0300 |
| commit | 5e7adc81ae1b27ff565714d2933b291cf1e1271f (patch) | |
| tree | eb5863d1327db59f0d43ce55326fbb3e4b356422 | |
| parent | da02f54e81db2f7bf6af9d1d0cfc5b41ec6d0dcb (diff) | |
| download | linux-5e7adc81ae1b27ff565714d2933b291cf1e1271f.tar.xz | |
perf/x86: Annotate struct bts_buffer::buf with __counted_by()
Add the __counted_by() compiler attribute to the flexible array member
buf to improve access bounds-checking via CONFIG_UBSAN_BOUNDS and
CONFIG_FORTIFY_SOURCE.
No functional changes intended.
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20250305123134.215577-2-thorsten.blum@linux.dev
| -rw-r--r-- | arch/x86/events/intel/bts.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/events/intel/bts.c b/arch/x86/events/intel/bts.c index 8e0931954497..953868da82fb 100644 --- a/arch/x86/events/intel/bts.c +++ b/arch/x86/events/intel/bts.c @@ -58,7 +58,7 @@ struct bts_buffer { local_t head; unsigned long end; void **data_pages; - struct bts_phys buf[]; + struct bts_phys buf[] __counted_by(nr_bufs); }; static struct pmu bts_pmu; |