linux-kernel - [PATCH v1 0/5] Silence some clang -Wshorten-64-to-32 warnings

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20250403165702.396388-1-irogers@google.com>
Date: Thu,  3 Apr 2025 09:56:57 -0700
From: Ian Rogers <irogers@...gle.com>
To: Yury Norov <yury.norov@...il.com>, Rasmus Villemoes <linux@...musvillemoes.dk>, 
	Arnd Bergmann <arnd@...db.de>, Nathan Chancellor <nathan@...nel.org>, 
	Nick Desaulniers <nick.desaulniers+lkml@...il.com>, Bill Wendling <morbo@...gle.com>, 
	Justin Stitt <justinstitt@...gle.com>, Ian Rogers <irogers@...gle.com>, 
	Adrian Hunter <adrian.hunter@...el.com>, Thomas Gleixner <tglx@...utronix.de>, 
	Jakub Kicinski <kuba@...nel.org>, Jacob Keller <jacob.e.keller@...el.com>, linux-arch@...r.kernel.org, 
	linux-kernel@...r.kernel.org, llvm@...ts.linux.dev
Subject: [PATCH v1 0/5] Silence some clang -Wshorten-64-to-32 warnings

Clang's shorten-64-to-32 can be useful to spot certain kinds of bugs
that can be more prevalent in C code due to implicit 64 to 32-bit
casting. Add some explicit casts to header files so as to avoid the
warning when these headers are used.

This patch started out as a single patch in a series for the perf tool
where a bug could have been identified were -Wshorten-64-to-32
enabled:
https://lore.kernel.org/lkml/20250401182347.3422199-3-irogers@google.com/

Ian Rogers (5):
  bitfield: Silence a clang -Wshorten-64-to-32 warning
  bitmap: Silence a clang -Wshorten-64-to-32 warning
  bitops: Silence a clang -Wshorten-64-to-32 warning
  math64: Silence a clang -Wshorten-64-to-32 warning
  hash.h: Silence a clang -Wshorten-64-to-32 warning

 include/asm-generic/bitops/fls64.h | 2 +-
 include/linux/bitfield.h           | 2 +-
 include/linux/bitmap.h             | 2 +-
 include/linux/hash.h               | 2 +-
 include/linux/math64.h             | 2 +-
 5 files changed, 5 insertions(+), 5 deletions(-)

-- 
2.49.0.504.g3bcea36a83-goog