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ext4: mark ctx_*_flags() with __maybe_unused

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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 6863f5643d ("kbuild: allow Clang to find unused static
inline functions for W=1 build").

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20240905163229.140522-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This commit is contained in:
Andy Shevchenko 2024-09-05 19:32:29 +03:00 committed by Theodore Ts'o
parent 150c174a60
commit 667de03a3b
1 changed files with 4 additions and 4 deletions
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8
fs/ext4/super.c
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@ -2096,16 +2096,16 @@ 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; \