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Date:   Sat, 13 Nov 2021 15:41:25 -0600
From:   "Gustavo A. R. Silva" <>
To:     Linus Torvalds <>
Cc:     Kees Cook <>,
        Nathan Chancellor <>,
        Nick Desaulniers <>,,,
        "Gustavo A. R. Silva" <>
Subject: [GIT PULL] Enable -Wimplicit-fallthrough for Clang for 5.16-rc1

The following changes since commit 3906fe9bb7f1a2c8667ae54e967dc8690824f4ea:

  Linux 5.15-rc7 (2021-10-25 11:30:31 -0700)

are available in the Git repository at:

  git:// tags/enable-clang-fallthrough-5.16-rc1

for you to fetch changes up to 428a8bf629ecc118d1eadbb629312c25fde2103f:

  Makefile: Enable -Wimplicit-fallthrough for Clang (2021-11-13 15:24:33 -0600)

Enable -Wimplicit-fallthrough for Clang for 5.16-rc1

Hi Linus,

Please, pull the following patch that enables -Wimplicit-fallthrough
for Clang 14+, globally.

We had almost 40,000[1] of these issues for Clang in the beginning,
and now I think we are in good shape and it is now possible to enable
-Wimplicit-fallthrough for Clang, with this finally getting rid of
the unintentional fallthrough bug-class in the kernel, entirely. :)

I have to say that I'm sending this pull-request this late in the
merge window, intentionally. I first wated to make sure that no other
warning shows up before sending it.

This patch has been baking in linux-next for a couple of developement
cycles, now. So, I think we are pretty much ready to merge it into



Gustavo A. R. Silva (1):
      Makefile: Enable -Wimplicit-fallthrough for Clang

 Makefile | 8 ++++++++
 1 file changed, 8 insertions(+)

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