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crypto: fips - annotate fips_enable() with __init to free init memory after boot 

The fips_enable() function is only invoked early during kernel boot via the
__setup() macro ("fips=" command line parameter), and is never used again
after initialization completes.

Annotating it with __init places the function in the .init.text section,
allowing the kernel to free its memory after init (when freeing_initmem()
runs), reducing runtime memory footprint.

This is a standard practice for setup/early-parse functions and has no
functional impact — the parsing logic, return values, and fips mode
setting behavior remain unchanged.

Signed-off-by: Can Peng <pengcan@kylinos.cn>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
master
Can Peng 2025-12-08 17:50:10 +08:00 committed by Herbert Xu
parent e6bba60966
commit 97282e2cde
1 changed files with 1 additions and 1 deletions
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2
crypto/fips.c
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@ -22,7 +22,7 @@ ATOMIC_NOTIFIER_HEAD(fips_fail_notif_chain);
EXPORT_SYMBOL_GPL(fips_fail_notif_chain);
/* Process kernel command-line parameter at boot time. fips=0 or fips=1 */
static int fips_enable(char *str)
static int __init fips_enable(char *str)
{
if (kstrtoint(str, 0, &fips_enabled))
return 0;