Re: [PATCH] objtool: prefer memory clobber & %= to volatile & __COUNTER__

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On Tue, Jan 18, 2022 at 03:01:20PM -0800, Josh Poimboeuf wrote:
> With the two WARN_ONs in media_request_object_complete(), GCC apparently
> considers the two reachable() asm statements as duplicates, and it
> removes the second one.

Could that be the same thing:

net/xfrm/xfrm_output.o: warning: objtool: xfrm_output_resume()+0x2e0: unreachable instruction

I see two WARN_ONs in asm output there too...

-- 
Regards/Gruss,
    Boris.

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