linux-kernel - [PATCH] drm: remove unnecessary fault wrappers

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Date:   Mon, 30 Jan 2017 12:20:02 -0700
From:   Ross Zwisler <ross.zwisler@...ux.intel.com>
To:     linux-kernel@...r.kernel.org
Cc:     Ross Zwisler <ross.zwisler@...ux.intel.com>,
        Daniel Vetter <daniel.vetter@...el.com>,
        David Airlie <airlied@...ux.ie>,
        Jani Nikula <jani.nikula@...ux.intel.com>,
        Sean Paul <seanpaul@...omium.org>,
        dri-devel@...ts.freedesktop.org
Subject: [PATCH] drm: remove unnecessary fault wrappers

The fault wrappers drm_vm_fault(), drm_vm_shm_fault(), drm_vm_dma_fault()
and drm_vm_sg_fault() used to provide extra logic beyond what was in the
"drm_do_*" versions of these functions, but as of this commit:

commit ca0b07d9a969 ("drm: convert drm from nopage to fault.")

They are just unnecessary wrappers that do nothing.  Remove them.

Signed-off-by: Ross Zwisler <ross.zwisler@...ux.intel.com>
---
 drivers/gpu/drm/drm_vm.c | 28 ++++------------------------
 1 file changed, 4 insertions(+), 24 deletions(-)

diff --git a/drivers/gpu/drm/drm_vm.c b/drivers/gpu/drm/drm_vm.c
index bae6e26..e677b11 100644
--- a/drivers/gpu/drm/drm_vm.c
+++ b/drivers/gpu/drm/drm_vm.c
@@ -349,50 +349,30 @@ static int drm_do_vm_sg_fault(struct vm_fault *vmf)
 	return 0;
 }
 
-static int drm_vm_fault(struct vm_fault *vmf)
-{
-	return drm_do_vm_fault(vmf);
-}
-
-static int drm_vm_shm_fault(struct vm_fault *vmf)
-{
-	return drm_do_vm_shm_fault(vmf);
-}
-
-static int drm_vm_dma_fault(struct vm_fault *vmf)
-{
-	return drm_do_vm_dma_fault(vmf);
-}
-
-static int drm_vm_sg_fault(struct vm_fault *vmf)
-{
-	return drm_do_vm_sg_fault(vmf);
-}
-
 /** AGP virtual memory operations */
 static const struct vm_operations_struct drm_vm_ops = {
-	.fault = drm_vm_fault,
+	.fault = drm_do_vm_fault,
 	.open = drm_vm_open,
 	.close = drm_vm_close,
 };
 
 /** Shared virtual memory operations */
 static const struct vm_operations_struct drm_vm_shm_ops = {
-	.fault = drm_vm_shm_fault,
+	.fault = drm_do_vm_shm_fault,
 	.open = drm_vm_open,
 	.close = drm_vm_shm_close,
 };
 
 /** DMA virtual memory operations */
 static const struct vm_operations_struct drm_vm_dma_ops = {
-	.fault = drm_vm_dma_fault,
+	.fault = drm_do_vm_dma_fault,
 	.open = drm_vm_open,
 	.close = drm_vm_close,
 };
 
 /** Scatter-gather virtual memory operations */
 static const struct vm_operations_struct drm_vm_sg_ops = {
-	.fault = drm_vm_sg_fault,
+	.fault = drm_do_vm_sg_fault,
 	.open = drm_vm_open,
 	.close = drm_vm_close,
 };
-- 
2.7.4