Re: linux-next: build warnings from Linus' tree

From: Linus Torvalds
Date: Sun Aug 19 2018 - 19:22:12 EST


On Sun, Aug 19, 2018 at 3:13 PM Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> wrote:
>
> Today's linux-next build (powerpc ppc64_defconfig) produced these
> warnings:
>
> fs/cifs/cifssmb.c:605:3: warning: 'strncpy' writing 16 bytes into a region of size 1 overflows the destination [-Wstringop-overflow=]
> strncpy(pSMB->DialectsArray+count, protocols[i].name, 16);
>
> Presumably caused by my update to gcc 8.2.0.

Yeah. There are some patches to mark some arrays as non-strings to get
rid of these, but we'll see. Maybe we'll just disable the new gcc
warning if it causes more pain than it is worth.

Linus