2023-06-29 16:34:54

by Randy Dunlap

[permalink] [raw]
Subject: Re: [PATCH] umh: fix build warning with CONFIG_SYSCTL disabled

Hi,

On 6/29/23 09:10, Matteo Rizzo wrote:
> When CONFIG_SYSCTL is not defined proc_cap_handler is not used. This
> causes a build warning with -Wunused-function.
>
> kernel/umh.c:497:12: error: unused function 'proc_cap_handler'
> [-Werror,-Wunused-function]
> static int proc_cap_handler(struct ctl_table *table, int write,
> ^
> 1 error generated.
>
> Fixes: 861dc0b46432 ("sysctl: move umh sysctl registration to its own file")
> Signed-off-by: Matteo Rizzo <[email protected]>

Arnd sent this same patch on 2023-June-07.

I have been wondering why it has not been merged...

> ---
> kernel/umh.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/kernel/umh.c b/kernel/umh.c
> index 41088c5c39fd..1b13c5d34624 100644
> --- a/kernel/umh.c
> +++ b/kernel/umh.c
> @@ -494,6 +494,7 @@ int call_usermodehelper(const char *path, char **argv, char **envp, int wait)
> }
> EXPORT_SYMBOL(call_usermodehelper);
>
> +#if defined(CONFIG_SYSCTL)
> static int proc_cap_handler(struct ctl_table *table, int write,
> void *buffer, size_t *lenp, loff_t *ppos)
> {
> @@ -544,7 +545,6 @@ static int proc_cap_handler(struct ctl_table *table, int write,
> return 0;
> }
>
> -#if defined(CONFIG_SYSCTL)
> static struct ctl_table usermodehelper_table[] = {
> {
> .procname = "bset",

thanks.
--
~Randy


2023-06-29 17:38:29

by Matteo Rizzo

[permalink] [raw]
Subject: Re: [PATCH] umh: fix build warning with CONFIG_SYSCTL disabled

On Thu, 29 Jun 2023 at 18:21, Randy Dunlap <[email protected]> wrote:
>
> Arnd sent this same patch on 2023-June-07.
>
> I have been wondering why it has not been merged...

Oh I see. I tried to search for the ID of the buggy commit but for some reason
I didn't see Arnd's patch. Thanks for pointing that out.

--
Matteo