From: Andy Shevchenko Date: Thu, 29 Aug 2024 15:46:40 +0000 (+0300) Subject: drm/mm: Mark drm_mm_interval_tree*() functions with __maybe_unused X-Git-Tag: v6.13-rc1~122^2~23^2~113 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=53bd7c1c0077db533472ae32799157758302ef48;p=thirdparty%2Fkernel%2Flinux.git drm/mm: Mark drm_mm_interval_tree*() functions with __maybe_unused 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 Reviewed-by: Jani Nikula Link: https://patchwork.freedesktop.org/patch/msgid/20240829154640.1120050-1-andriy.shevchenko@linux.intel.com Signed-off-by: Jani Nikula --- diff --git a/drivers/gpu/drm/drm_mm.c b/drivers/gpu/drm/drm_mm.c index 5ace481c19011..1ed68d3cd80ba 100644 --- a/drivers/gpu/drm/drm_mm.c +++ b/drivers/gpu/drm/drm_mm.c @@ -151,7 +151,7 @@ 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)