[PATCH] init: move from strlcpy with unused retval to strscpy

From: Wolfram Sang
Date: Thu Aug 18 2022 - 17:12:50 EST


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@xxxxxxxxxxxxxx/
Signed-off-by: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx>
---
init/do_mounts.c | 4 ++--
init/main.c | 4 ++--
2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/init/do_mounts.c b/init/do_mounts.c
index 7058e14ad5f7..811e94daf0a8 100644
--- a/init/do_mounts.c
+++ b/init/do_mounts.c
@@ -296,7 +296,7 @@ EXPORT_SYMBOL_GPL(name_to_dev_t);

static int __init root_dev_setup(char *line)
{
- strlcpy(saved_root_name, line, sizeof(saved_root_name));
+ strscpy(saved_root_name, line, sizeof(saved_root_name));
return 1;
}

@@ -343,7 +343,7 @@ static int __init split_fs_names(char *page, size_t size, char *names)
int count = 1;
char *p = page;

- strlcpy(p, root_fs_names, size);
+ strscpy(p, root_fs_names, size);
while (*p++) {
if (p[-1] == ',') {
p[-1] = '\0';
diff --git a/init/main.c b/init/main.c
index 91642a4e69be..6da14b8ab376 100644
--- a/init/main.c
+++ b/init/main.c
@@ -422,7 +422,7 @@ static void __init setup_boot_config(void)
if (!data)
data = xbc_get_embedded_bootconfig(&size);

- strlcpy(tmp_cmdline, boot_command_line, COMMAND_LINE_SIZE);
+ strscpy(tmp_cmdline, boot_command_line, COMMAND_LINE_SIZE);
err = parse_args("bootconfig", tmp_cmdline, NULL, 0, 0, 0, NULL,
bootconfig_params);

@@ -762,7 +762,7 @@ void __init parse_early_param(void)
return;

/* All fall through to do_early_param. */
- strlcpy(tmp_cmdline, boot_command_line, COMMAND_LINE_SIZE);
+ strscpy(tmp_cmdline, boot_command_line, COMMAND_LINE_SIZE);
parse_early_options(tmp_cmdline);
done = 1;
}
--
2.35.1