Looks like I made the mistake of forgetting to check whether or not this would build without CONFIG_DEBUG_FS, as the Kbuild bot reported some issues building with tegra_defconfig:
In file included from drivers/gpu/drm/nouveau/nouveau_display.c:47: ./drivers/gpu/drm/nouveau/dispnv50/crc.h: In function ‘nv50_head_crc_late_register’: ./drivers/gpu/drm/nouveau/dispnv50/crc.h:106:47: error: parameter name omitted 106 | static inline int nv50_head_crc_late_register(struct nv50_head *) {} | ^~~~~~~~~~~~~~~~~~ ./drivers/gpu/drm/nouveau/dispnv50/crc.h:106:54: warning: no return statement in function returning non-void [-Wreturn-type] 106 | static inline int nv50_head_crc_late_register(struct nv50_head *) {} | ^~~~~~~~~ ./drivers/gpu/drm/nouveau/dispnv50/crc.h: In function ‘nv50_crc_handle_vblank’: ./drivers/gpu/drm/nouveau/dispnv50/crc.h:108:57: warning: ‘return’ with a value, in function returning void [-Wreturn-type] 108 | nv50_crc_handle_vblank(struct nv50_head *head) { return 0; } | ^ ./drivers/gpu/drm/nouveau/dispnv50/crc.h:108:1: note: declared here 108 | nv50_crc_handle_vblank(struct nv50_head *head) { return 0; } | ^~~~~~~~~~~~~~~~~~~~~~ ./drivers/gpu/drm/nouveau/dispnv50/crc.h: In function ‘nv50_crc_atomic_check’: ./drivers/gpu/drm/nouveau/dispnv50/crc.h:111:23: error: parameter name omitted 111 | nv50_crc_atomic_check(struct nv50_head *, struct nv50_head_atom *, | ^~~~~~~~~~~~~~~~~~ ./drivers/gpu/drm/nouveau/dispnv50/crc.h:111:43: error: parameter name omitted 111 | nv50_crc_atomic_check(struct nv50_head *, struct nv50_head_atom *, | ^~~~~~~~~~~~~~~~~~~~~~~ ./drivers/gpu/drm/nouveau/dispnv50/crc.h:112:9: error: parameter name omitted 112 | struct nv50_head_atom *) {} | ^~~~~~~~~~~~~~~~~~~~~~~ ./drivers/gpu/drm/nouveau/dispnv50/crc.h:112:16: warning: no return statement in function returning non-void [-Wreturn-type] 112 | struct nv50_head_atom *) {} | ^~~~~~~~~~~~~~ ./drivers/gpu/drm/nouveau/dispnv50/crc.h: In function ‘nv50_crc_atomic_stop_reporting’: ./drivers/gpu/drm/nouveau/dispnv50/crc.h:114:32: error: parameter name omitted 114 | nv50_crc_atomic_stop_reporting(struct drm_atomic_state *) {} | ^~~~~~~~~~~~~~~~~~~~~~~~~ ./drivers/gpu/drm/nouveau/dispnv50/crc.h: In function ‘nv50_crc_atomic_prepare_notifier_contexts’: ./drivers/gpu/drm/nouveau/dispnv50/crc.h:116:43: error: parameter name omitted 116 | nv50_crc_atomic_prepare_notifier_contexts(struct drm_atomic_state *) {} | ^~~~~~~~~~~~~~~~~~~~~~~~~ ./drivers/gpu/drm/nouveau/dispnv50/crc.h: In function ‘nv50_crc_atomic_start_reporting’: ./drivers/gpu/drm/nouveau/dispnv50/crc.h:118:33: error: parameter name omitted 118 | nv50_crc_atomic_start_reporting(struct drm_atomic_state *) {} | ^~~~~~~~~~~~~~~~~~~~~~~~~ ./drivers/gpu/drm/nouveau/dispnv50/crc.h: In function ‘nv50_crc_atomic_set’: ./drivers/gpu/drm/nouveau/dispnv50/crc.h:120:21: error: parameter name omitted 120 | nv50_crc_atomic_set(struct nv50_head *, struct nv50_head_atom *) {} | ^~~~~~~~~~~~~~~~~~ ./drivers/gpu/drm/nouveau/dispnv50/crc.h:120:41: error: parameter name omitted 120 | nv50_crc_atomic_set(struct nv50_head *, struct nv50_head_atom *) {} | ^~~~~~~~~~~~~~~~~~~~~~~ ./drivers/gpu/drm/nouveau/dispnv50/crc.h: In function ‘nv50_crc_atomic_clr’: ./drivers/gpu/drm/nouveau/dispnv50/crc.h:122:21: error: parameter name omitted 122 | nv50_crc_atomic_clr(struct nv50_head *) {} | ^~~~~~~~~~~~~~~~~~ drivers/gpu/drm/nouveau/nouveau_display.c: In function ‘nouveau_framebuffer_new’: drivers/gpu/drm/nouveau/nouveau_display.c:286:15: warning: variable ‘width’ set but not used [-Wunused-but-set-variable] 286 | unsigned int width, height, i; | ^~~~~
So, fix the inline function declarations we use in drm/drivers/gpu/drm/nouveau/dispnv50/crc.h when CONFIG_DEBUG_FS is enabled.
Fixes: 12885ecbfe62 ("drm/nouveau/kms/nvd9-: Add CRC support") Reported-by: kernel test robot lkp@intel.com Signed-off-by: Lyude Paul lyude@redhat.com --- drivers/gpu/drm/nouveau/dispnv50/crc.h | 23 ++++++++++++----------- 1 file changed, 12 insertions(+), 11 deletions(-)
diff --git a/drivers/gpu/drm/nouveau/dispnv50/crc.h b/drivers/gpu/drm/nouveau/dispnv50/crc.h index 4bc59e7793151..92df084492a8c 100644 --- a/drivers/gpu/drm/nouveau/dispnv50/crc.h +++ b/drivers/gpu/drm/nouveau/dispnv50/crc.h @@ -106,26 +106,27 @@ struct nv50_crc_atom {}; #define nv50_crc_set_source NULL
static inline void nv50_crc_init(struct drm_device *dev) {} -static inline int nv50_head_crc_late_register(struct nv50_head *) {} -static inline void -nv50_crc_handle_vblank(struct nv50_head *head) { return 0; } +static inline int +nv50_head_crc_late_register(struct nv50_head *head) { return 0; } +static inline void nv50_crc_handle_vblank(struct nv50_head *head) {}
static inline int -nv50_crc_atomic_check_head(struct nv50_head *, struct nv50_head_atom *, - struct nv50_head_atom *) {} +nv50_crc_atomic_check_head(struct nv50_head *head, + struct nv50_head_atom *asyh, + struct nv50_head_atom *armh) { return 0; } static inline void nv50_crc_atomic_check_outp(struct nv50_atom *atom) {} static inline void -nv50_crc_atomic_stop_reporting(struct drm_atomic_state *) {} +nv50_crc_atomic_stop_reporting(struct drm_atomic_state *state) {} static inline void -nv50_crc_atomic_init_notifier_contexts(struct drm_atomic_state *) {} +nv50_crc_atomic_init_notifier_contexts(struct drm_atomic_state *state) {} static inline void -nv50_crc_atomic_release_notifier_contexts(struct drm_atomic_state *) {} +nv50_crc_atomic_release_notifier_contexts(struct drm_atomic_state *state) {} static inline void -nv50_crc_atomic_start_reporting(struct drm_atomic_state *) {} +nv50_crc_atomic_start_reporting(struct drm_atomic_state *state) {} static inline void -nv50_crc_atomic_set(struct nv50_head *, struct nv50_head_atom *) {} +nv50_crc_atomic_set(struct nv50_head *head, struct nv50_head_atom *state) {} static inline void -nv50_crc_atomic_clr(struct nv50_head *) {} +nv50_crc_atomic_clr(struct nv50_head *head) {}
#endif /* IS_ENABLED(CONFIG_DEBUG_FS) */ #endif /* !__NV50_CRC_H__ */