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| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2024-08-29 18:46:40 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-12-05 10:59:32 +0100 |
| commit | 97150a4ab088e3846212035708e9b008272aab1f (patch) | |
| tree | fe0fb9bd6e7297436c5b60eba02a7313f0f7a43e | |
| parent | 12e2c520a0a4202575e4a45ea41f06a8e9aa3417 (diff) | |
drm/mm: Mark drm_mm_interval_tree*() functions with __maybe_unused
[ Upstream commit 53bd7c1c0077db533472ae32799157758302ef48 ]
The INTERVAL_TREE_DEFINE() uncoditionally provides a bunch of helper
functions which in some cases may be not used. This, in particular,
prevents kernel builds with clang, `make W=1` and CONFIG_WERROR=y:
.../drm/drm_mm.c:152:1: error: unused function 'drm_mm_interval_tree_insert' [-Werror,-Wunused-function]
152 | INTERVAL_TREE_DEFINE(struct drm_mm_node, rb,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
153 | u64, __subtree_last,
| ~~~~~~~~~~~~~~~~~~~~
154 | START, LAST, static inline, drm_mm_interval_tree)
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Fix this by marking drm_mm_interval_tree*() functions with __maybe_unused.
See also commit 6863f5643dd7 ("kbuild: allow Clang to find unused static
inline functions for W=1 build").
Fixes: 202b52b7fbf7 ("drm: Track drm_mm nodes with an interval tree")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240829154640.1120050-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/gpu/drm/drm_mm.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/drm_mm.c b/drivers/gpu/drm/drm_mm.c index 3cc5fbd78ee2..d7d9fc093c30 100644 --- a/drivers/gpu/drm/drm_mm.c +++ b/drivers/gpu/drm/drm_mm.c @@ -164,7 +164,7 @@ static void show_leaks(struct drm_mm *mm) { } INTERVAL_TREE_DEFINE(struct drm_mm_node, rb, u64, __subtree_last, - START, LAST, static inline, drm_mm_interval_tree) + START, LAST, static inline __maybe_unused, drm_mm_interval_tree) struct drm_mm_node * __drm_mm_interval_first(const struct drm_mm *mm, u64 start, u64 last) |