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Subjectlinux-next: build failure after merge of the akpm tree
Hi all,

After merging the akpm 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:117:2: error: implicit declaration of function 'use_mm' [-Werror=implicit-function-declaration]
117 | use_mm(mm);
| ^~~~~~
drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_process.c:144:2: error: implicit declaration of function 'unuse_mm' [-Werror=implicit-function-declaration]
144 | unuse_mm(mm);
| ^~~~~~~~

Caused by commit

d21760f76006 ("kernel: better document the use_mm/unuse_mm API contract")

interacting with commit

522b89c63370 ("drm/amdkfd: Track SDMA utilization per process")

from the amdgpu tree.

I have added the following patch for today:

rom: Stephen Rothwell <sfr@canb.auug.org.au>
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 <sfr@canb.auug.org.au>
---
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
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