The following commit has been merged into the perf/core branch of tip: Commit-ID: 5e7adc81ae1b27ff565714d2933b291cf1e1271f Gitweb: https://git.kernel.org/tip/5e7adc81ae1b27ff565714d2933b291cf1e1271f Author: Thorsten Blum <thorsten.blum@xxxxxxxxx> AuthorDate: Wed, 05 Mar 2025 13:31:34 +01:00 Committer: Ingo Molnar <mingo@xxxxxxxxxx> CommitterDate: Wed, 05 Mar 2025 18:28:22 +01:00 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@xxxxxxxxx> Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx> Link: https://lore.kernel.org/r/20250305123134.215577-2-thorsten.blum@xxxxxxxxx --- arch/x86/events/intel/bts.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/events/intel/bts.c b/arch/x86/events/intel/bts.c index 8e09319..953868d 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;
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