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kgdbts: mark kgdbts_option_setup() with __init to free init memory 

The kgdbts_option_setup() function is invoked only once early in boot
via the __setup("kgdbts=", ...) mechanism to parse the kernel
command-line option.After init is complete, it is never called again.

Annotating it with __init places the function in the .init.text section,
enabling the kernel to free its code memory during the init memory
cleanup phase (free_initmem()). This reduces the kernel’s runtime
memory footprint with no functional side effects.

Signed-off-by: Can Peng <pengcan@kylinos.cn>
Link: https://patch.msgid.link/20251208130525.2775885-1-pengcan@kylinos.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Can Peng 2025-12-08 21:05:25 +08:00 committed by Greg Kroah-Hartman
parent 578d62a2e5
commit 38a5a54f6d
1 changed files with 1 additions and 1 deletions
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2
drivers/misc/kgdbts.c
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@ -1066,7 +1066,7 @@ static void kgdbts_run_tests(void)
configured = 0;
}
static int kgdbts_option_setup(char *opt)
static int __init kgdbts_option_setup(char *opt)
{
if (strlen(opt) >= MAX_CONFIG_LEN) {
printk(KERN_ERR "kgdbts: config string too long\n");