Thread (3 messages) 3 messages, 3 authors, 2025-07-04
STALE386d LANDED

[PATCH][next] perf: imx9_perf: make the read-only array mask static const

From: Colin Ian King <hidden>
Date: 2025-06-11 13:39:36
Also in: imx, kernel-janitors, linux-perf-users, lkml
Subsystem: arm pmu profiling and debugging, freescale imx ddr pmu driver, the rest · Maintainers: Will Deacon, Mark Rutland, Frank Li, Xu Yang, Linus Torvalds

Don't populate the read-only array mask on the stack at run time,
instead make it static const.

Signed-off-by: Colin Ian King <redacted>
---
 drivers/perf/fsl_imx9_ddr_perf.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/drivers/perf/fsl_imx9_ddr_perf.c b/drivers/perf/fsl_imx9_ddr_perf.c
index 843f163e6c33..267754fdf581 100644
--- a/drivers/perf/fsl_imx9_ddr_perf.c
+++ b/drivers/perf/fsl_imx9_ddr_perf.c
@@ -461,9 +461,11 @@ static void imx93_ddr_perf_monitor_config(struct ddr_pmu *pmu, int event,
 					  int counter, int axi_id, int axi_mask)
 {
 	u32 pmcfg1, pmcfg2;
-	u32 mask[] = {  MX93_PMCFG1_RD_TRANS_FILT_EN,
-			MX93_PMCFG1_WR_TRANS_FILT_EN,
-			MX93_PMCFG1_RD_BT_FILT_EN };
+	static const u32 mask[] = {
+		MX93_PMCFG1_RD_TRANS_FILT_EN,
+		MX93_PMCFG1_WR_TRANS_FILT_EN,
+		MX93_PMCFG1_RD_BT_FILT_EN
+	};
 
 	pmcfg1 = readl_relaxed(pmu->base + PMCFG1);
 
-- 
2.49.0

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