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Message-ID: <CA+G9fYuyPFBVyqqg0RVhaz4c0S+H4TMm1apxgwyTUOkge9NY7A@mail.gmail.com>
Date: Fri, 17 May 2024 13:00:25 +0200
From: Naresh Kamboju <naresh.kamboju@...aro.org>
To: open list <linux-kernel@...r.kernel.org>, lkft-triage@...ts.linaro.org,
clang-built-linux <llvm@...ts.linux.dev>
Cc: Nathan Chancellor <nathan@...nel.org>, Nick Desaulniers <ndesaulniers@...gle.com>,
Anders Roxell <anders.roxell@...aro.org>, Dan Carpenter <dan.carpenter@...aro.org>,
Borislav Petkov <bp@...e.de>, Borislav Petkov <bp@...en8.de>, Ingo Molnar <mingo@...nel.org>
Subject: clang: arch/x86/boot/printf.c:257:3: error: unannotated fall-through
between switch labels [-Werror,-Wimplicit-fallthrough]
The following x86 build failed on Linux next-20240517 tag due to following
warnings / errors only seen with clang builds.
Reported-by: Linux Kernel Functional Testing <lkft@...aro.org>
Build errors:
----
arch/x86/boot/printf.c:257:3: error: unannotated fall-through between
switch labels [-Werror,-Wimplicit-fallthrough]
257 | case 'u':
| ^
arch/x86/boot/printf.c:257:3: note: insert 'break;' to avoid fall-through
257 | case 'u':
| ^
| break;
1 error generated.
The suspected patch,
x86/boot: Add a fallthrough annotation
metadata:
---
git_describe: next-20240517
git_repo: https://gitlab.com/Linaro/lkft/mirrors/next/linux-next
git_sha: c75962170e49f24399141276ae119e6a879f36dc
git_short_log: c75962170e49 ("Add linux-next specific files for 20240517")
build_name: clang-18-lkftconfig
Links:
- https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20240517/testrun/23951572/suite/build/test/clang-18-lkftconfig/log
- https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20240517/testrun/23951572/suite/build/test/clang-18-lkftconfig/details/
- https://storage.tuxsuite.com/public/linaro/lkft/builds/2gZwb1q4GHgVCuOfQIMCJ6tqMFn/
--
Linaro LKFT
https://lkft.linaro.org
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