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SubjectRe: [PATCH] checksyscalls: ignore -Wunused-macros
On Mon. 25 Apr 2022 at 17:49, Arnd Bergmann <arnd@arndb.de> wrote:
> On Mon, Apr 25, 2022 at 9:42 AM Vincent MAILHOL
> <mailhol.vincent@wanadoo.fr> wrote:
> > On Mon. 25 Apr 2022 at 15:50, Arnd Bergmann <arnd@arndb.de> wrote:
> > > On Mon, Apr 25, 2022 at 8:17 AM Vincent MAILHOL> <mailhol.vincent@wanadoo.fr> wrote:
> > > > When I run W=2, I want to only see the warnings of the file I am
> > > > working on. So I find it useful to fix the W=2 warnings which
> > > > show up when building other files to not get spammed by
> > > > irrelevant issues and to simplify the triage.
> > > >
> > > > My initial message lacked the rationale. I will add additional
> > > > explanations in the v2 of this patch.
> > >
> > > I agree this is worth fixing if we want to make W=2 have any meaning at all.
> > >
> > > Your approach is probably fine. We could try to improve this by comparing
> > > against the list from include/uapi/asm-generic/unistd.h instead of the i386
> > > list. I suppose that would involve rewriting the script into a simpler one,
> > > but I'm not sure if anyone has an interest in working on this.
> >
> > If someone wants to do it, great, but I do not have the
> > confidence to do it myself so I hope you will forgive me for
> > taking a pass here.
>
> Sure, no worries.
>
> > Another alternative I considered was to only call
> > checksyscalls.sh when doing a 'make all'. This way, we keep the
> > warning but people won’t be spammed when building sub projects
> > because the script would not be executed.
>
> Right, I like that as well, one less thing to be done for every
> iterative make as well. The syscall table really doesn't change
> all that much that this needs to be run by most developers.

I send a patch in a new thread to only call the script once:
https://lore.kernel.org/lkml/20220426155229.436681-1-mailhol.vincent@wanadoo.fr/T/#u

If this new patch gets rejected, then I will go back to the
-Wno-unused-macros approach.


Yours sincerely,
Vincent Mailhol

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