[PATCH] drm: make drm_mode_config_func const

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Make these structures const as they are only stored in the funcs field
of a drm_mode_config structure which is of type const.
Done using Coccinelle:

@match disable optional_qualifier@
identifier s;
@@
static struct drm_mode_config_funcs s = {...};

@ref@
position p;
identifier match.s;
@@
s@p

@good1@
identifier y;
position ref.p;
identifier match.s;
@@
struct drm_mode_config y = {...,.funcs=&s@p,...};

@good2@
struct drm_mode_config y;
identifier match.s;
position ref.p;
@@
y.funcs = &s@p

@bad depends on  !good1 && !good2@
position ref.p;
identifier match.s;
@@
s@p

@depends on forall !bad disable optional_qualifier@
identifier match.s;
@@
static
+ const
struct drm_mode_config_funcs s;

Signed-off-by: Bhumika Goyal <bhumirks@xxxxxxxxx>
---
 drivers/gpu/drm/arc/arcpgu_drv.c  | 2 +-
 drivers/gpu/drm/pl111/pl111_drv.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/arc/arcpgu_drv.c b/drivers/gpu/drm/arc/arcpgu_drv.c
index e3c13aa..289eda5 100644
--- a/drivers/gpu/drm/arc/arcpgu_drv.c
+++ b/drivers/gpu/drm/arc/arcpgu_drv.c
@@ -31,7 +31,7 @@ static void arcpgu_fb_output_poll_changed(struct drm_device *dev)
 	drm_fbdev_cma_hotplug_event(arcpgu->fbdev);
 }
 
-static struct drm_mode_config_funcs arcpgu_drm_modecfg_funcs = {
+static const struct drm_mode_config_funcs arcpgu_drm_modecfg_funcs = {
 	.fb_create  = drm_fb_cma_create,
 	.output_poll_changed = arcpgu_fb_output_poll_changed,
 	.atomic_check = drm_atomic_helper_check,
diff --git a/drivers/gpu/drm/pl111/pl111_drv.c b/drivers/gpu/drm/pl111/pl111_drv.c
index 29653fe..0ea3ca8 100644
--- a/drivers/gpu/drm/pl111/pl111_drv.c
+++ b/drivers/gpu/drm/pl111/pl111_drv.c
@@ -72,7 +72,7 @@
 
 #define DRIVER_DESC      "DRM module for PL111"
 
-static struct drm_mode_config_funcs mode_config_funcs = {
+static const struct drm_mode_config_funcs mode_config_funcs = {
 	.fb_create = drm_fb_cma_create,
 	.atomic_check = drm_atomic_helper_check,
 	.atomic_commit = drm_atomic_helper_commit,
-- 
1.9.1

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