Re: [PATCH] drm/ttm: add __user annotation in radeon_ttm_vram_read

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Am 24.10.20 um 02:47 schrieb Rasmus Villemoes:
Keep sparse happy by preserving the __user annotation when casting.

Reported-by: kernel test robot <lkp@xxxxxxxxx>
Signed-off-by: Rasmus Villemoes <linux@xxxxxxxxxxxxxxxxxx>

Reviewed-by: Christian König <christian.koenig@xxxxxxx>

Going over old patches and stumbled over that once.

Alex did you missed to pick it up?

Regards,
Christian.

---

kernel test robot has already started spamming me due to 9c5743dff. If
I don't fix those warnings I'll keep getting those emails for
months, so let me do the easy ones.


  drivers/gpu/drm/radeon/radeon_ttm.c | 2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
index 36150b7f31a90aa1eece..ecfe88b0a35d8f317712 100644
--- a/drivers/gpu/drm/radeon/radeon_ttm.c
+++ b/drivers/gpu/drm/radeon/radeon_ttm.c
@@ -1005,7 +1005,7 @@ static ssize_t radeon_ttm_vram_read(struct file *f, char __user *buf,
  		value = RREG32(RADEON_MM_DATA);
  		spin_unlock_irqrestore(&rdev->mmio_idx_lock, flags);
- r = put_user(value, (uint32_t *)buf);
+		r = put_user(value, (uint32_t __user *)buf);
  		if (r)
  			return r;

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