On Wed, May 30, 2018 at 09:34:34PM +0200, Arnd Bergmann wrote:
> On Wed, May 30, 2018 at 9:24 PM, Greg Kroah-Hartman
> > Why is that not an option enabled for all arches right now for gcc-8?
>
> I would still want this warning enabled by default in future kernels,
> just disabled
> for the system call definitions (until we decide to rework the way
> they are defined).
>
> What I'd suggest we do is a series of patches:
>
> 1. disable both -Wno-attribute-alias and -Wstringop-truncation by
> default, but leave them
> enabled in 'make W=1'. Mark this one for stable backports
> 2. add a macro to let users disable warnings locally within a file,
> based on _Pragma("GCC
> diagnostic ...")
> 3. change the system call macros to disable -Wno-attribute-alias inside of the
> SYSCALL_DEFINEx() macros
> 4. turn on -Wno-attribute-alias again by default.
That sounds like a good plan to me.
