linux-kernel - Re: [PATCH v2 0/3] PPC: Fix -Wimplicit-fallthrough for clang

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Date:   Wed, 18 Nov 2020 14:27:42 -0600
From:   "Gustavo A. R. Silva" <gustavoars@...nel.org>
To:     Nick Desaulniers <ndesaulniers@...gle.com>
Cc:     Nathan Chancellor <natechancellor@...il.com>,
        Miguel Ojeda <miguel.ojeda.sandonis@...il.com>,
        Michael Ellerman <mpe@...erman.id.au>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        clang-built-linux@...glegroups.com, linuxppc-dev@...ts.ozlabs.org,
        linux-kernel@...r.kernel.org, Arvind Sankar <nivedita@...m.mit.edu>
Subject: Re: [PATCH v2 0/3] PPC: Fix -Wimplicit-fallthrough for clang

Nick,

On Tue, Nov 17, 2020 at 04:07:48PM -0800, Nick Desaulniers wrote:
> While cleaning up the last few -Wimplicit-fallthrough warnings in tree
> for Clang, I noticed
> commit 6a9dc5fd6170d ("lib: Revert use of fallthrough pseudo-keyword in lib/")
> which seemed to undo a bunch of fixes in lib/ due to breakage in
> arch/powerpc/boot/ not including compiler_types.h.  We don't need
> compiler_types.h for the definition of `fallthrough`, simply
> compiler_attributes.h.  Include that, revert the revert to lib/, and fix
> the last remaining cases I observed for powernv_defconfig.

I've added the series to my -next tree, together with Miguel's
suggestions.

Thanks for the Acks and comments, Michael.

--
Gustavo