On Mon, Dec 14, 2015 at 04:34:29PM +0100, Daniel Borkmann wrote:
> Seems like gcc (4.8.3) doesn't catch this false positive, triggering
> after 0f7543322c5f ("route: ignore RTAX_HOPLIMIT of value -1"):
>
> iproute.c: In function 'print_route':
> 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;
> ^
> So just shut it up by initializing to 0.
Hmm. Interestingly, my patch shouldn't have changed anything relevant
for gcc's decision. OTOH, I don't see a warning using gcc-4.9.3.
Cheers, Phil
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