From: Thorsten Blum Date: Sun, 14 Dec 2025 15:31:42 +0000 (+0100) Subject: namespace: Replace simple_strtoul with kstrtoul to parse boot params X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3f320e5c2eca158e3b5dc2e633694ee7f348d970;p=thirdparty%2Flinux.git namespace: Replace simple_strtoul with kstrtoul to parse boot params Replace simple_strtoul() with the recommended kstrtoul() for parsing the 'mhash_entries=' and 'mphash_entries=' boot parameters. Check the return value of kstrtoul() and reject invalid values. This adds error handling while preserving behavior for existing values, and removes use of the deprecated simple_strtoul() helper. Signed-off-by: Thorsten Blum Link: https://patch.msgid.link/20251214153141.218953-2-thorsten.blum@linux.dev Reviewed-by: Jan Kara Signed-off-by: Christian Brauner --- diff --git a/fs/namespace.c b/fs/namespace.c index c58674a20cad5..a548369ddb9c3 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -49,20 +49,14 @@ static unsigned int mp_hash_shift __ro_after_init; static __initdata unsigned long mhash_entries; static int __init set_mhash_entries(char *str) { - if (!str) - return 0; - mhash_entries = simple_strtoul(str, &str, 0); - return 1; + return kstrtoul(str, 0, &mhash_entries) == 0; } __setup("mhash_entries=", set_mhash_entries); static __initdata unsigned long mphash_entries; static int __init set_mphash_entries(char *str) { - if (!str) - return 0; - mphash_entries = simple_strtoul(str, &str, 0); - return 1; + return kstrtoul(str, 0, &mphash_entries) == 0; } __setup("mphash_entries=", set_mphash_entries);