From bb5de14dd4d922ae4711dfa6802c79aac628207f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Christian=20K=C3=B6nig?= Date: Mon, 18 Mar 2019 11:09:54 +0100 Subject: [PATCH 1657/2940] drm/amdgpu: fix invalid use of change_bit MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit We only need to clear the bit in a 32bit integer. This fixes a crah on ARM64 and PPC64LE caused by "drm/amdgpu: update the vm invalidation engine layout V2" Signed-off-by: Christian König Acked-by: Alex Deucher Cc: stable@vger.kernel.org --- drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c index 593f93d5feb2..efde1c9866f8 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c @@ -702,7 +702,7 @@ static int gmc_v9_0_allocate_vm_inv_eng(struct amdgpu_device *adev) } ring->vm_inv_eng = inv_eng - 1; - change_bit(inv_eng - 1, (unsigned long *)(&vm_inv_engs[vmhub])); + vm_inv_engs[vmhub] &= ~(1 << ring->vm_inv_eng); dev_info(adev->dev, "ring %s uses VM inv eng %u on hub %u\n", ring->name, ring->vm_inv_eng, ring->funcs->vmhub); -- 2.17.1