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

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Message-Id: <20201116043532.4032932-1-ndesaulniers@google.com>
Date:   Sun, 15 Nov 2020 20:35:29 -0800
From:   Nick Desaulniers <ndesaulniers@...gle.com>
To:     "Gustavo A . R . Silva" <gustavoars@...nel.org>,
        Nathan Chancellor <natechancellor@...il.com>,
        Miguel Ojeda <miguel.ojeda.sandonis@...il.com>,
        Michael Ellerman <mpe@...erman.id.au>
Cc:     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,
        Nick Desaulniers <ndesaulniers@...gle.com>
Subject: [PATCH 0/3] PPC: Fix -Wimplicit-fallthrough for clang

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.

Nick Desaulniers (3):
  powerpc: boot: include compiler_attributes.h
  Revert "lib: Revert use of fallthrough pseudo-keyword in lib/"
  powerpc: fix -Wimplicit-fallthrough

 arch/powerpc/boot/Makefile     |  1 +
 arch/powerpc/boot/decompress.c |  1 -
 arch/powerpc/kernel/uprobes.c  |  1 +
 arch/powerpc/perf/imc-pmu.c    |  1 +
 lib/asn1_decoder.c             |  4 ++--
 lib/assoc_array.c              |  2 +-
 lib/bootconfig.c               |  4 ++--
 lib/cmdline.c                  | 10 +++++-----
 lib/dim/net_dim.c              |  2 +-
 lib/dim/rdma_dim.c             |  4 ++--
 lib/glob.c                     |  2 +-
 lib/siphash.c                  | 36 +++++++++++++++++-----------------
 lib/ts_fsm.c                   |  2 +-
 lib/vsprintf.c                 | 14 ++++++-------
 lib/xz/xz_dec_lzma2.c          |  4 ++--
 lib/xz/xz_dec_stream.c         | 16 +++++++--------
 lib/zstd/bitstream.h           | 10 +++++-----
 lib/zstd/compress.c            |  2 +-
 lib/zstd/decompress.c          | 12 ++++++------
 lib/zstd/huf_compress.c        |  4 ++--
 20 files changed, 67 insertions(+), 65 deletions(-)

-- 
2.29.2.299.gdc1121823c-goog