4.9-stable review patch. If anyone has any objections, please let me know. ------------------ From: Baoyou Xie <baoyou.xie@xxxxxxxxxx> [ Upstream commit a5725ab0497ad91a2df7c01a78bf1a0cc5be4526 ] We get 2 warnings when building kernel with W=1: drivers/gpu/drm/msm/adreno/a3xx_gpu.c:535:17: warning: no previous prototype for 'a3xx_gpu_init' [-Wmissing-prototypes] drivers/gpu/drm/msm/adreno/a4xx_gpu.c:624:17: warning: no previous prototype for 'a4xx_gpu_init' [-Wmissing-prototypes] In fact, both functions are declared in drivers/gpu/drm/msm/adreno/adreno_device.c, but should be declared in a header file. So this patch moves both function declarations to drivers/gpu/drm/msm/adreno/adreno_gpu.h. Signed-off-by: Baoyou Xie <baoyou.xie@xxxxxxxxxx> Reviewed-by: Arnd Bergmann <arnd@xxxxxxxx> Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxx> Link: http://patchwork.freedesktop.org/patch/msgid/1477127865-9381-1-git-send-email-baoyou.xie@xxxxxxxxxx Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/gpu/drm/msm/adreno/adreno_device.c | 3 --- drivers/gpu/drm/msm/adreno/adreno_gpu.h | 3 +++ 2 files changed, 3 insertions(+), 3 deletions(-) --- a/drivers/gpu/drm/msm/adreno/adreno_device.c +++ b/drivers/gpu/drm/msm/adreno/adreno_device.c @@ -25,9 +25,6 @@ bool hang_debug = false; MODULE_PARM_DESC(hang_debug, "Dump registers when hang is detected (can be slow!)"); module_param_named(hang_debug, hang_debug, bool, 0600); -struct msm_gpu *a3xx_gpu_init(struct drm_device *dev); -struct msm_gpu *a4xx_gpu_init(struct drm_device *dev); - static const struct adreno_info gpulist[] = { { .rev = ADRENO_REV(3, 0, 5, ANY_ID), --- a/drivers/gpu/drm/msm/adreno/adreno_gpu.h +++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.h @@ -311,4 +311,7 @@ static inline void adreno_gpu_write(stru gpu_write(&gpu->base, reg - 1, data); } +struct msm_gpu *a3xx_gpu_init(struct drm_device *dev); +struct msm_gpu *a4xx_gpu_init(struct drm_device *dev); + #endif /* __ADRENO_GPU_H__ */