linux-kernel - [PATCH 2/3] drm/sun4i: make drm_connector

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Date:   Tue,  8 Aug 2017 16:58:31 +0530
From:   Bhumika Goyal <bhumirks@...il.com>
To:     julia.lawall@...6.fr, architt@...eaurora.org, a.hajda@...sung.com,
        Laurent.pinchart@...asonboard.com, airlied@...ux.ie,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        mark.yao@...k-chips.com, heiko@...ech.de,
        linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org,
        maxime.ripard@...e-electrons.com, wens@...e.org
Cc:     Bhumika Goyal <bhumirks@...il.com>
Subject: [PATCH 2/3] drm/sun4i: make drm_connector_funcs structures const

Make these const as they are only passed to the function
drm_connector_init and the corresponding argument is of type const.
Done using Coccinelle

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

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

@good1@
identifier match.s;
expression e1,e2;
position ref.p;
@@
drm_connector_init(e1,e2,&s@p,...)

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

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

Signed-off-by: Bhumika Goyal <bhumirks@...il.com>
---
 drivers/gpu/drm/sun4i/sun4i_rgb.c | 2 +-
 drivers/gpu/drm/sun4i/sun4i_tv.c  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/sun4i/sun4i_rgb.c b/drivers/gpu/drm/sun4i/sun4i_rgb.c
index 76362c0..4a456de 100644
--- a/drivers/gpu/drm/sun4i/sun4i_rgb.c
+++ b/drivers/gpu/drm/sun4i/sun4i_rgb.c
@@ -119,7 +119,7 @@ static int sun4i_rgb_mode_valid(struct drm_connector *connector,
 	drm_connector_cleanup(connector);
 }
 
-static struct drm_connector_funcs sun4i_rgb_con_funcs = {
+static const struct drm_connector_funcs sun4i_rgb_con_funcs = {
 	.dpms			= drm_atomic_helper_connector_dpms,
 	.fill_modes		= drm_helper_probe_single_connector_modes,
 	.destroy		= sun4i_rgb_connector_destroy,
diff --git a/drivers/gpu/drm/sun4i/sun4i_tv.c b/drivers/gpu/drm/sun4i/sun4i_tv.c
index 73bfe7b..d246794 100644
--- a/drivers/gpu/drm/sun4i/sun4i_tv.c
+++ b/drivers/gpu/drm/sun4i/sun4i_tv.c
@@ -537,7 +537,7 @@ static int sun4i_tv_comp_mode_valid(struct drm_connector *connector,
 	drm_connector_cleanup(connector);
 }
 
-static struct drm_connector_funcs sun4i_tv_comp_connector_funcs = {
+static const struct drm_connector_funcs sun4i_tv_comp_connector_funcs = {
 	.dpms			= drm_atomic_helper_connector_dpms,
 	.fill_modes		= drm_helper_probe_single_connector_modes,
 	.destroy		= sun4i_tv_comp_connector_destroy,
-- 
1.9.1