Re: drivers/net/ethernet/broadcom/tg3.c:17811:37: warning: array subscript is above array bounds

[Fengguang Wu <fengguang.wu@intel.com>]

Hi Andrey,

On Thu, Feb 19, 2015 at 06:39:28PM +0300, Andrey Ryabinin wrote:
> On 02/18/2015 08:14 PM, kbuild test robot wrote:
> > tree:   git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> > head:   f5af19d10d151c5a2afae3306578f485c244db25
> > commit: ef7f0d6a6ca8c9e4b27d78895af86c2fbfaeedb2 x86_64: add KASan support
> > date:   5 days ago
> > config: x86_64-randconfig-iv1-02190055 (attached as .config)
> > reproduce:
> >   git checkout ef7f0d6a6ca8c9e4b27d78895af86c2fbfaeedb2
> >   # save the attached .config to linux build tree
> >   make ARCH=x86_64 
> > 
> > Note: it may well be a FALSE warning. FWIW you are at least aware of it now.
> > 
> > All warnings:
> > 
> >    drivers/net/ethernet/broadcom/tg3.c: In function 'tg3_init_one':
> >>> drivers/net/ethernet/broadcom/tg3.c:17811:37: warning: array subscript is above array bounds [-Warray-bounds]
> >       struct tg3_napi *tnapi = &tp->napi[i];
> >                                         ^
> >>> drivers/net/ethernet/broadcom/tg3.c:17811:37: warning: array subscript is above array bounds [-Warray-bounds]
> > 
> 
> This probably a GCC bug: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59124
> I see this warning with 4.9.2, but not with GCC 5 where this should be fixed already.

Yes we are running gcc 4.9.2. Thank you for the info, I'll disable this warning for now.

Regards,
Fengguang

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