Hi all, On Fri, 12 Jun 2020 10:25:52 +1000 Stephen Rothwell wrote: > > 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). The merge fix patch now looks like: 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 013c2b018edc..40695d52e9a8 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_process.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_process.c @@ -184,7 +184,7 @@ static void kfd_sdma_activity_worker(struct work_struct *work) if (!mm) goto cleanup; - use_mm(mm); + kthread_use_mm(mm); list_for_each_entry(sdma_q, &sdma_q_list.list, list) { val = 0; @@ -198,7 +198,7 @@ static void kfd_sdma_activity_worker(struct work_struct *work) } } - unuse_mm(mm); + kthread_unuse_mm(mm); mmput(mm); /* -- Cheers, Stephen Rothwell