Fixes the following W=1 kernel build warning(s):

 drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c:69: warning: Function parameter or 
member 'bo' not described in 'amdgpu_gmc_pd_addr'
 drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c:121: warning: Function parameter or 
member 'bo' not described in 'amdgpu_gmc_agp_addr'
 drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c:121: warning: Excess function 
parameter 'tbo' description in 'amdgpu_gmc_agp_addr'

Cc: Alex Deucher <alexander.deuc...@amd.com>
Cc: "Christian König" <christian.koe...@amd.com>
Cc: David Airlie <airl...@linux.ie>
Cc: Daniel Vetter <dan...@ffwll.ch>
Cc: amd-...@lists.freedesktop.org
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Lee Jones <lee.jo...@linaro.org>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
index 056cb87d09ea3..fede84509dbca 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
@@ -61,9 +61,8 @@ void amdgpu_gmc_get_pde_for_bo(struct amdgpu_bo *bo, int 
level,
        amdgpu_gmc_get_vm_pde(adev, level, addr, flags);
 }
 
-/**
+/*
  * amdgpu_gmc_pd_addr - return the address of the root directory
- *
  */
 uint64_t amdgpu_gmc_pd_addr(struct amdgpu_bo *bo)
 {
@@ -112,7 +111,7 @@ int amdgpu_gmc_set_pte_pde(struct amdgpu_device *adev, void 
*cpu_pt_addr,
 /**
  * amdgpu_gmc_agp_addr - return the address in the AGP address space
  *
- * @tbo: TTM BO which needs the address, must be in GTT domain
+ * @bo: TTM BO which needs the address, must be in GTT domain
  *
  * Tries to figure out how to access the BO through the AGP aperture. Returns
  * AMDGPU_BO_INVALID_OFFSET if that is not possible.
-- 
2.25.1

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