Re: [PATCH] ipv6: fib: hide unused 'pn' variable

[David Ahern]

On 3/22/24 7:14 AM, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@xxxxxxxx>
> 
> When CONFIG_IPV6_SUBTREES is disabled, the only user is hidden, causing
> a 'make W=1' warning:
> 
> net/ipv6/ip6_fib.c: In function 'fib6_add':
> net/ipv6/ip6_fib.c:1388:32: error: variable 'pn' set but not used [-Werror=unused-but-set-variable]
> 
> Add another #ifdef around the variable declaration, matching the other
> uses in this file.
> 
> Fixes: 66729e18df08 ("[IPV6] ROUTE: Make sure we have fn->leaf when adding a node on subtree.")
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
> ---
>  net/ipv6/ip6_fib.c | 7 +++++--
>  1 file changed, 5 insertions(+), 2 deletions(-)

Reviewed-by: David Ahern <dsahern@xxxxxxxxxx>