Re: [PATCH] ipv4/route: avoid unused-but-set-variable warning

[David Ahern]

On 3/22/24 7:18 AM, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@xxxxxxxx>
> 
> The log_martians variable is only used in an #ifdef, causing a 'make W=1'
> warning with gcc:
> 
> net/ipv4/route.c: In function 'ip_rt_send_redirect':
> net/ipv4/route.c:880:13: error: variable 'log_martians' set but not used [-Werror=unused-but-set-variable]
> 
> Change the #ifdef to an equivalent IS_ENABLED() to let the compiler
> see where the variable is used.
> 
> Fixes: 30038fc61adf ("net: ip_rt_send_redirect() optimization")
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
> ---
>  net/ipv4/route.c | 4 +---
>  1 file changed, 1 insertion(+), 3 deletions(-)
> 

Reviewed-by: David Ahern <dsahern@xxxxxxxxxx>