On Thu, 21 Jan 2016 02:23:49 +0000
Zhang Shengju <zhangshen...@cmss.chinamobile.com> wrote:
> the warning was:
> iproute.c:301:12: warning: 'val' may be used uninitialized in this
> function [-Wmaybe-uninitialized]
> features &= ~RTAX_FEATURE_ECN;
> ^
> iproute.c:575:10: note: 'val' was declared here
> __u32 val;
> ^
>
> Signed-off-by: Zhang Shengju <zhangshen...@cmss.chinamobile.com>
> ---
> ip/iproute.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/ip/iproute.c b/ip/iproute.c
> index d5e3ebe..afe70e1 100644
> --- a/ip/iproute.c
> +++ b/ip/iproute.c
> @@ -572,7 +572,7 @@ int print_route(const struct sockaddr_nl *who, struct
> nlmsghdr *n, void *arg)
> mxlock = *(unsigned*)RTA_DATA(mxrta[RTAX_LOCK]);
>
> for (i=2; i<= RTAX_MAX; i++) {
> - __u32 val;
> + __u32 val = 0U;
>
> if (mxrta[i] == NULL)
> continue;
Your compiler is doing bad dependency analysis.
There is not really a bug here.
It would still be best to initialize to keep broken compilers from causing
warning.
