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Message-ID: <20240905163229.140522-1-andriy.shevchenko@linux.intel.com> Date: Thu, 5 Sep 2024 19:32:29 +0300 From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com> To: linux-ext4@...r.kernel.org, linux-kernel@...r.kernel.org, llvm@...ts.linux.dev Cc: "Theodore Ts'o" <tytso@....edu>, Andreas Dilger <adilger.kernel@...ger.ca>, Nathan Chancellor <nathan@...nel.org>, Nick Desaulniers <ndesaulniers@...gle.com>, Bill Wendling <morbo@...gle.com>, Justin Stitt <justinstitt@...gle.com>, Andy Shevchenko <andriy.shevchenko@...ux.intel.com> Subject: [PATCH v1 1/1] ext4: Mark ctx_*_flags() with __maybe_unused When ctx_set_flags() is unused, it prevents kernel builds with clang, `make W=1` and CONFIG_WERROR=y: .../ext4/super.c:2120:1: error: unused function 'ctx_set_flags' [-Werror,-Wunused-function] 2120 | EXT4_SET_CTX(flags); /* set only */ | ^~~~~~~~~~~~~~~~~~~ Fix this by marking ctx_*_flags() with __maybe_unused (mark both for the sake of symmetry). See also commit 6863f5643dd7 ("kbuild: allow Clang to find unused static inline functions for W=1 build"). Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com> --- fs/ext4/super.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/fs/ext4/super.c b/fs/ext4/super.c index e72145c4ae5a..8bbd84c2f3ca 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -2095,16 +2095,16 @@ static int ext4_parse_test_dummy_encryption(const struct fs_parameter *param, } #define EXT4_SET_CTX(name) \ -static inline void ctx_set_##name(struct ext4_fs_context *ctx, \ - unsigned long flag) \ +static inline __maybe_unused \ +void ctx_set_##name(struct ext4_fs_context *ctx, unsigned long flag) \ { \ ctx->mask_s_##name |= flag; \ ctx->vals_s_##name |= flag; \ } #define EXT4_CLEAR_CTX(name) \ -static inline void ctx_clear_##name(struct ext4_fs_context *ctx, \ - unsigned long flag) \ +static inline __maybe_unused \ +void ctx_clear_##name(struct ext4_fs_context *ctx, unsigned long flag) \ { \ ctx->mask_s_##name |= flag; \ ctx->vals_s_##name &= ~flag; \ -- 2.43.0.rc1.1336.g36b5255a03ac
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