linux-kernel - [PATCH] perf/x86/intel: Cast u64 variable

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Message-ID: <20241115225829.112361-2-ragavendra.bn@gmail.com>
Date: Fri, 15 Nov 2024 14:58:30 -0800
From: Ragavendra <ragavendra.bn@...il.com>
To: peterz@...radead.org,
	mingo@...hat.com,
	acme@...nel.org,
	namhyung@...nel.org,
	mark.rutland@....com,
	alexander.shishkin@...ux.intel.com,
	jolsa@...nel.org,
	irogers@...gle.com,
	adrian.hunter@...el.com,
	kan.liang@...ux.intel.com,
	tglx@...utronix.de,
	bp@...en8.de,
	dave.hansen@...ux.intel.com,
	hpa@...or.com
Cc: x86@...nel.org,
	linux-perf-users@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Ragavendra <ragavendra.bn@...il.com>
Subject: [PATCH] perf/x86/intel: Cast u64 variable

Casting (1 >> bit) to u64 before it is compared with pebs_status variable.

Fixes: 21509084f999 perf/x86/intel: Handle multiple records in the PEBS buffer
Signed-off-by: Ragavendra Nagraj <ragavendra.bn@...il.com>
---
 arch/x86/events/intel/ds.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/events/intel/ds.c b/arch/x86/events/intel/ds.c
index fa5ea65de0d0..9ea147565dc2 100644
--- a/arch/x86/events/intel/ds.c
+++ b/arch/x86/events/intel/ds.c
@@ -2072,7 +2072,7 @@ get_next_pebs_record_by_bit(void *base, void *top, int bit)
 			/* clear non-PEBS bit and re-check */
 			pebs_status = status & cpuc->pebs_enabled;
 			pebs_status &= PEBS_COUNTER_MASK;
-			if (pebs_status == (1 << bit))
+			if (pebs_status == (u64) (1 << bit))
 				return at;
 		}
 	}
-- 
2.46.1