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

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Message-ID: <20250611133917.170888-1-colin.i.king@gmail.com>
Date: Wed, 11 Jun 2025 14:39:17 +0100
From: Colin Ian King <colin.i.king@...il.com>
To: Will Deacon <will@...nel.org>,
	Mark Rutland <mark.rutland@....com>,
	Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>,
	linux-arm-kernel@...ts.infradead.org,
	linux-perf-users@...r.kernel.org,
	imx@...ts.linux.dev
Cc: kernel-janitors@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH][next] perf: imx9_perf: make the read-only array mask static const

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 <colin.i.king@...il.com>
---
 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