Hi all, After merging the amdgpu tree, today's linux-next build (x86_64 allmodconfig) failed like this: drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_process.c: In function 'kfd_sdma_activity_worker': drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_process.c:118:2: error: implicit declaration of function 'use_mm' [-Werror=implicit-function-declaration] 118 | use_mm(mm); | ^~~~~~ drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_process.c:145:2: error: implicit declaration of function 'unuse_mm' [-Werror=implicit-function-declaration] 145 | unuse_mm(mm); | ^~~~~~~~ Caused by commit 32cb59f31362 ("drm/amdkfd: Track SDMA utilization per process") interacting with commit f5678e7f2ac3 ("kernel: better document the use_mm/unuse_mm API contract") from Linus' tree. I have applied the following merge fix for today (that was previously part of the akpm tree). From: Stephen Rothwell Date: Thu, 28 May 2020 20:15:34 +1000 Subject: [PATCH] drm/amdkfd: fix up for {un}use_mm() rename Signed-off-by: Stephen Rothwell --- drivers/gpu/drm/amd/amdkfd/kfd_process.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process.c b/drivers/gpu/drm/amd/amdkfd/kfd_process.c index db010c5da144..25636789f3d3 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_process.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_process.c @@ -114,7 +114,7 @@ static void kfd_sdma_activity_worker(struct work_struct *work) return; } - use_mm(mm); + kthread_use_mm(mm); dqm_lock(dqm); @@ -141,7 +141,7 @@ static void kfd_sdma_activity_worker(struct work_struct *work) } dqm_unlock(dqm); - unuse_mm(mm); + kthread_unuse_mm(mm); mmput(mm); } -- 2.26.2 -- Cheers, Stephen Rothwell