From: Stephen Hemminger <shemmin...@vyatta.com> Date: Tue, 20 Nov 2012 10:09:58 -0800
> On Tue, 20 Nov 2012 13:02:02 -0500 (EST) > David Miller <da...@davemloft.net> wrote: > >> From: Stephen Hemminger <shemmin...@vyatta.com> >> Date: Tue, 20 Nov 2012 09:53:04 -0800 >> >> > There are actually lots of bogus warnings than seem to only occur >> > because gcc 4.4 does a bad job of checking. Later versions are fixed >> > and don't generate warnings. >> > >> > My preference is to not add the unnecessary initialization because >> > if you get in the habit of doing it. The whole purpose of the uninitialized >> > check is lost. >> >> Try again, this was with gcc-4.7.2-2 on Fedora. >> >> There are too many preconditions, across multiple basic block, which >> together ensure the skb is in fact initialized at the point in >> question and the compiler simply isn't sophisticated enough to see >> that. > > Weird, it compiles clean on x86-84 on Debian. > gcc-4.7.real (Debian 4.7.2-4) 4.7.2 Fedora backports a lot more stuff into gcc than Debian does. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
