On Tue, 21 May 2019, Greg Kroah-Hartman wrote:

> On Tue, May 21, 2019 at 04:48:47PM +0800, kbuild test robot wrote:
> > tree:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git 
> > usb-linus
> > head:   53c7b63f797c96a30c21dd3b781fafaae096a12b
> > commit: 31e0456de5be379b10fea0fa94a681057114a96e [3/10] media: usb: siano: 
> > Fix general protection fault in smsusb
> > config: mips-allmodconfig (attached as .config)
> > compiler: mips-linux-gcc (GCC) 8.1.0
> > reproduce:
> >         wget 
> > https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
> > ~/bin/make.cross
> >         chmod +x ~/bin/make.cross
> >         git checkout 31e0456de5be379b10fea0fa94a681057114a96e
> >         # save the attached .config to linux build tree
> >         GCC_VERSION=8.1.0 make.cross ARCH=mips 
> > 
> > If you fix the issue, kindly add following tag
> > Reported-by: kbuild test robot <[email protected]>
> > 
> > Note: it may well be a FALSE warning. FWIW you are at least aware of it now.
> > http://gcc.gnu.org/wiki/Better_Uninitialized_Warnings
> 
> False positive, gcc isn't smart enough here.

Should I send a patch initializing the value to 0 anyway?

Alan Stern

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