idr_init() uses base 0 which is an invalid identifier. The new function idr_init_base allows IDR to set the ID lookup from base 1. This avoids all lookups that otherwise starts from 0 since 0 is always unused.
References: commit 6ce711f27500 ("idr: Make 1-based IDRs more efficient")
Signed-off-by: Deepak R Varma mh12gx2825@gmail.com --- drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c | 2 +- drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 2 +- drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c index c80d8339f58c..b98ae173a9de 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c @@ -576,7 +576,7 @@ int amdgpu_ctx_wait_prev_fence(struct amdgpu_ctx *ctx, void amdgpu_ctx_mgr_init(struct amdgpu_ctx_mgr *mgr) { mutex_init(&mgr->lock); - idr_init(&mgr->ctx_handles); + idr_init_base(&mgr->ctx_handles, 1); }
long amdgpu_ctx_mgr_entity_flush(struct amdgpu_ctx_mgr *mgr, long timeout) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c index efda38349a03..d65a1888683b 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c @@ -1052,7 +1052,7 @@ int amdgpu_driver_open_kms(struct drm_device *dev, struct drm_file *file_priv) }
mutex_init(&fpriv->bo_list_lock); - idr_init(&fpriv->bo_list_handles); + idr_init_base(&fpriv->bo_list_handles, 1);
amdgpu_ctx_mgr_init(&fpriv->ctx_mgr);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c index df110afa97bf..0154282771c7 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c @@ -3199,7 +3199,7 @@ void amdgpu_vm_manager_init(struct amdgpu_device *adev) adev->vm_manager.vm_update_mode = 0; #endif
- idr_init(&adev->vm_manager.pasid_idr); + idr_init_base(&adev->vm_manager.pasid_idr, 1); spin_lock_init(&adev->vm_manager.pasid_lock); }