linux-kernel - [PATCH] MIPS: move from strlcpy with unused retval to strscpy

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Message-Id: <20220818205943.6288-1-wsa+renesas@sang-engineering.com>
Date:   Thu, 18 Aug 2022 22:59:43 +0200
From:   Wolfram Sang <wsa+renesas@...g-engineering.com>
To:     linux-kernel@...r.kernel.org
Cc:     Wolfram Sang <wsa+renesas@...g-engineering.com>,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        linux-mips@...r.kernel.org
Subject: [PATCH] MIPS: move from strlcpy with unused retval to strscpy

Follow the advice of the below link and prefer 'strscpy' in this
subsystem. Conversion is 1:1 because the return value is not used.
Generated by a coccinelle script.

Link: https://lore.kernel.org/r/CAHk-=wgfRnXz0W3D37d01q3JFkr_i_uTL=V6A6G1oUZcprmknw@mail.gmail.com/
Signed-off-by: Wolfram Sang <wsa+renesas@...g-engineering.com>
---
 arch/mips/kernel/prom.c          | 6 +++---
 arch/mips/kernel/relocate.c      | 2 +-
 arch/mips/pic32/pic32mzda/init.c | 2 +-
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/arch/mips/kernel/prom.c b/arch/mips/kernel/prom.c
index 7db6ff9aed7d..f88ce78e13e3 100644
--- a/arch/mips/kernel/prom.c
+++ b/arch/mips/kernel/prom.c
@@ -26,7 +26,7 @@ __init void mips_set_machine_name(const char *name)
 	if (name == NULL)
 		return;
 
-	strlcpy(mips_machine_name, name, sizeof(mips_machine_name));
+	strscpy(mips_machine_name, name, sizeof(mips_machine_name));
 	pr_info("MIPS: machine is %s\n", mips_get_machine_name());
 }
 
@@ -52,9 +52,9 @@ int __init __dt_register_buses(const char *bus0, const char *bus1)
 	if (!of_have_populated_dt())
 		panic("device tree not present");
 
-	strlcpy(of_ids[0].compatible, bus0, sizeof(of_ids[0].compatible));
+	strscpy(of_ids[0].compatible, bus0, sizeof(of_ids[0].compatible));
 	if (bus1) {
-		strlcpy(of_ids[1].compatible, bus1,
+		strscpy(of_ids[1].compatible, bus1,
 			sizeof(of_ids[1].compatible));
 	}
 
diff --git a/arch/mips/kernel/relocate.c b/arch/mips/kernel/relocate.c
index 56b51de2dc51..58fc8d089402 100644
--- a/arch/mips/kernel/relocate.c
+++ b/arch/mips/kernel/relocate.c
@@ -340,7 +340,7 @@ void *__init relocate_kernel(void)
 	early_init_dt_scan(fdt);
 	if (boot_command_line[0]) {
 		/* Boot command line was passed in device tree */
-		strlcpy(arcs_cmdline, boot_command_line, COMMAND_LINE_SIZE);
+		strscpy(arcs_cmdline, boot_command_line, COMMAND_LINE_SIZE);
 	}
 #endif /* CONFIG_USE_OF */
 
diff --git a/arch/mips/pic32/pic32mzda/init.c b/arch/mips/pic32/pic32mzda/init.c
index d9c8c4e46aff..08c46cf122d7 100644
--- a/arch/mips/pic32/pic32mzda/init.c
+++ b/arch/mips/pic32/pic32mzda/init.c
@@ -44,7 +44,7 @@ void __init plat_mem_setup(void)
 	pr_info(" builtin_cmdline  : %s\n", CONFIG_CMDLINE);
 #endif
 	if (dtb != __dtb_start)
-		strlcpy(arcs_cmdline, boot_command_line, COMMAND_LINE_SIZE);
+		strscpy(arcs_cmdline, boot_command_line, COMMAND_LINE_SIZE);
 
 #ifdef CONFIG_EARLY_PRINTK
 	fw_init_early_console(-1);
-- 
2.35.1