[PATCH] bus: rifsc: Replace snprintf("%s") with strscpy

Thorsten Blum thorsten.blum at linux.dev
Mon Feb 23 13:12:11 PST 2026


Replace snprintf("%s", ...) with the faster and more direct strscpy().

Signed-off-by: Thorsten Blum <thorsten.blum at linux.dev>
---
 drivers/bus/stm32_rifsc.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/bus/stm32_rifsc.c b/drivers/bus/stm32_rifsc.c
index debeaf8ea1bd..ba65ad21434b 100644
--- a/drivers/bus/stm32_rifsc.c
+++ b/drivers/bus/stm32_rifsc.c
@@ -15,6 +15,7 @@
 #include <linux/of.h>
 #include <linux/of_platform.h>
 #include <linux/platform_device.h>
+#include <linux/string.h>
 #include <linux/types.h>
 
 #include "stm32_firewall.h"
@@ -450,7 +451,7 @@ static void stm32_rifsc_fill_rimu_dbg_entry(struct rifsc_dbg_private *rifsc,
 	const struct stm32_rifsc_resources_names *dbg_names = rifsc->res_names;
 	u32 rimc_attr = readl_relaxed(rifsc->mmio + RIFSC_RIMC_ATTR0 + 0x4 * i);
 
-	snprintf(dbg_entry->m_name, sizeof(dbg_entry->m_name), "%s", dbg_names->initiator_names[i]);
+	strscpy(dbg_entry->m_name, dbg_names->initiator_names[i]);
 	dbg_entry->m_cid = FIELD_GET(RIFSC_RIMC_MCID_MASK, rimc_attr);
 	dbg_entry->cidsel = rimc_attr & RIFSC_RIMC_CIDSEL;
 	dbg_entry->m_sec = rimc_attr & RIFSC_RIMC_MSEC;
@@ -469,8 +470,7 @@ static void stm32_rifsc_fill_dev_dbg_entry(struct rifsc_dbg_private *rifsc,
 	sec_cfgr = readl_relaxed(rifsc->mmio + RIFSC_RISC_SECCFGR0 + 0x4 * reg_id);
 	priv_cfgr = readl_relaxed(rifsc->mmio + RIFSC_RISC_PRIVCFGR0 + 0x4 * reg_id);
 
-	snprintf(dbg_entry->dev_name, sizeof(dbg_entry->dev_name), "%s",
-		 dbg_names->device_names[i]);
+	strscpy(dbg_entry->dev_name, dbg_names->device_names[i]);
 	dbg_entry->dev_id = i;
 	dbg_entry->dev_cid_filt_en = cid_cfgr & CIDCFGR_CFEN;
 	dbg_entry->dev_sem_en = cid_cfgr & CIDCFGR_SEMEN;
-- 
Thorsten Blum <thorsten.blum at linux.dev>
GPG: 1D60 735E 8AEF 3BE4 73B6  9D84 7336 78FD 8DFE EAD4




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