drm/omap: dss: Constify omap_dss_driver operations structure

The structure contains function pointers that don't need to be modified.
Make all its instances const to improve security.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

diff --git a/drivers/gpu/drm/omapdrm/displays/connector-analog-tv.c b/drivers/gpu/drm/omapdrm/displays/connector-analog-tv.c
index 5fdecc1..a49bc4a 100644 (file)
--- a/drivers/gpu/drm/omapdrm/displays/connector-analog-tv.c
+++ b/drivers/gpu/drm/omapdrm/displays/connector-analog-tv.c
@@ -154,7 +154,7 @@ static int tvc_check_timings(struct omap_dss_device *dssdev,
        return in->ops.atv->check_timings(in, vm);
 }
 
-static struct omap_dss_driver tvc_driver = {
+static const struct omap_dss_driver tvc_driver = {
        .connect                = tvc_connect,
        .disconnect             = tvc_disconnect,
 

diff --git a/drivers/gpu/drm/omapdrm/displays/connector-dvi.c b/drivers/gpu/drm/omapdrm/displays/connector-dvi.c
index 6d8cbd9..c320f3c 100644 (file)
--- a/drivers/gpu/drm/omapdrm/displays/connector-dvi.c
+++ b/drivers/gpu/drm/omapdrm/displays/connector-dvi.c
@@ -297,7 +297,7 @@ static void dvic_disable_hpd(struct omap_dss_device *dssdev)
        mutex_unlock(&ddata->hpd_lock);
 }
 
-static struct omap_dss_driver dvic_driver = {
+static const struct omap_dss_driver dvic_driver = {
        .connect        = dvic_connect,
        .disconnect     = dvic_disconnect,
 

diff --git a/drivers/gpu/drm/omapdrm/displays/connector-hdmi.c b/drivers/gpu/drm/omapdrm/displays/connector-hdmi.c
index ca30ed9..6f12f9b 100644 (file)
--- a/drivers/gpu/drm/omapdrm/displays/connector-hdmi.c
+++ b/drivers/gpu/drm/omapdrm/displays/connector-hdmi.c
@@ -269,7 +269,7 @@ static int hdmic_set_infoframe(struct omap_dss_device *dssdev,
        return in->ops.hdmi->set_infoframe(in, avi);
 }
 
-static struct omap_dss_driver hdmic_driver = {
+static const struct omap_dss_driver hdmic_driver = {
        .connect                = hdmic_connect,
        .disconnect             = hdmic_disconnect,
 

diff --git a/drivers/gpu/drm/omapdrm/displays/panel-dpi.c b/drivers/gpu/drm/omapdrm/displays/panel-dpi.c
index 6cbf570..e874f0b 100644 (file)
--- a/drivers/gpu/drm/omapdrm/displays/panel-dpi.c
+++ b/drivers/gpu/drm/omapdrm/displays/panel-dpi.c
@@ -153,7 +153,7 @@ static int panel_dpi_check_timings(struct omap_dss_device *dssdev,
        return in->ops.dpi->check_timings(in, vm);
 }
 
-static struct omap_dss_driver panel_dpi_ops = {
+static const struct omap_dss_driver panel_dpi_ops = {
        .connect        = panel_dpi_connect,
        .disconnect     = panel_dpi_disconnect,
 

diff --git a/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c b/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c
index 428de90..d7c57d8 100644 (file)
--- a/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c
+++ b/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c
@@ -1210,7 +1210,7 @@ static void dsicm_get_size(struct omap_dss_device *dssdev,
        *height = ddata->height_mm;
 }
 
-static struct omap_dss_driver dsicm_ops = {
+static const struct omap_dss_driver dsicm_ops = {
        .connect        = dsicm_connect,
        .disconnect     = dsicm_disconnect,
 

diff --git a/drivers/gpu/drm/omapdrm/displays/panel-lgphilips-lb035q02.c b/drivers/gpu/drm/omapdrm/displays/panel-lgphilips-lb035q02.c
index 7541970..ad98d2f 100644 (file)
--- a/drivers/gpu/drm/omapdrm/displays/panel-lgphilips-lb035q02.c
+++ b/drivers/gpu/drm/omapdrm/displays/panel-lgphilips-lb035q02.c
@@ -228,7 +228,7 @@ static int lb035q02_check_timings(struct omap_dss_device *dssdev,
        return in->ops.dpi->check_timings(in, vm);
 }
 
-static struct omap_dss_driver lb035q02_ops = {
+static const struct omap_dss_driver lb035q02_ops = {
        .connect        = lb035q02_connect,
        .disconnect     = lb035q02_disconnect,
 

diff --git a/drivers/gpu/drm/omapdrm/displays/panel-nec-nl8048hl11.c b/drivers/gpu/drm/omapdrm/displays/panel-nec-nl8048hl11.c
index 9a3b27f..0846fb5 100644 (file)
--- a/drivers/gpu/drm/omapdrm/displays/panel-nec-nl8048hl11.c
+++ b/drivers/gpu/drm/omapdrm/displays/panel-nec-nl8048hl11.c
@@ -222,7 +222,7 @@ static int nec_8048_check_timings(struct omap_dss_device *dssdev,
        return in->ops.dpi->check_timings(in, vm);
 }
 
-static struct omap_dss_driver nec_8048_ops = {
+static const struct omap_dss_driver nec_8048_ops = {
        .connect        = nec_8048_connect,
        .disconnect     = nec_8048_disconnect,
 

diff --git a/drivers/gpu/drm/omapdrm/displays/panel-sharp-ls037v7dw01.c b/drivers/gpu/drm/omapdrm/displays/panel-sharp-ls037v7dw01.c
index bb5b680..e7c4a83 100644 (file)
--- a/drivers/gpu/drm/omapdrm/displays/panel-sharp-ls037v7dw01.c
+++ b/drivers/gpu/drm/omapdrm/displays/panel-sharp-ls037v7dw01.c
@@ -192,7 +192,7 @@ static int sharp_ls_check_timings(struct omap_dss_device *dssdev,
        return in->ops.dpi->check_timings(in, vm);
 }
 
-static struct omap_dss_driver sharp_ls_ops = {
+static const struct omap_dss_driver sharp_ls_ops = {
        .connect        = sharp_ls_connect,
        .disconnect     = sharp_ls_disconnect,
 

diff --git a/drivers/gpu/drm/omapdrm/displays/panel-sony-acx565akm.c b/drivers/gpu/drm/omapdrm/displays/panel-sony-acx565akm.c
index f34c06b..0241559 100644 (file)
--- a/drivers/gpu/drm/omapdrm/displays/panel-sony-acx565akm.c
+++ b/drivers/gpu/drm/omapdrm/displays/panel-sony-acx565akm.c
@@ -693,7 +693,7 @@ static int acx565akm_check_timings(struct omap_dss_device *dssdev,
        return in->ops.sdi->check_timings(in, vm);
 }
 
-static struct omap_dss_driver acx565akm_ops = {
+static const struct omap_dss_driver acx565akm_ops = {
        .connect        = acx565akm_connect,
        .disconnect     = acx565akm_disconnect,
 

diff --git a/drivers/gpu/drm/omapdrm/displays/panel-tpo-td028ttec1.c b/drivers/gpu/drm/omapdrm/displays/panel-tpo-td028ttec1.c
index a1f1dc1..3c4036e 100644 (file)
--- a/drivers/gpu/drm/omapdrm/displays/panel-tpo-td028ttec1.c
+++ b/drivers/gpu/drm/omapdrm/displays/panel-tpo-td028ttec1.c
@@ -362,7 +362,7 @@ static int td028ttec1_panel_check_timings(struct omap_dss_device *dssdev,
        return in->ops.dpi->check_timings(in, vm);
 }
 
-static struct omap_dss_driver td028ttec1_ops = {
+static const struct omap_dss_driver td028ttec1_ops = {
        .connect        = td028ttec1_panel_connect,
        .disconnect     = td028ttec1_panel_disconnect,
 

diff --git a/drivers/gpu/drm/omapdrm/displays/panel-tpo-td043mtea1.c b/drivers/gpu/drm/omapdrm/displays/panel-tpo-td043mtea1.c
index c08e22b..14a37b8 100644 (file)
--- a/drivers/gpu/drm/omapdrm/displays/panel-tpo-td043mtea1.c
+++ b/drivers/gpu/drm/omapdrm/displays/panel-tpo-td043mtea1.c
@@ -456,7 +456,7 @@ static int tpo_td043_check_timings(struct omap_dss_device *dssdev,
        return in->ops.dpi->check_timings(in, vm);
 }
 
-static struct omap_dss_driver tpo_td043_ops = {
+static const struct omap_dss_driver tpo_td043_ops = {
        .connect        = tpo_td043_connect,
        .disconnect     = tpo_td043_disconnect,
 

diff --git a/drivers/gpu/drm/omapdrm/dss/omapdss.h b/drivers/gpu/drm/omapdrm/dss/omapdss.h
index 426ac82..e3d31b2 100644 (file)
--- a/drivers/gpu/drm/omapdrm/dss/omapdss.h
+++ b/drivers/gpu/drm/omapdrm/dss/omapdss.h
@@ -466,7 +466,7 @@ struct omap_dss_device {
 
        const char *name;
 
-       struct omap_dss_driver *driver;
+       const struct omap_dss_driver *driver;
 
        union {
                const struct omapdss_dpi_ops *dpi;

diff --git a/drivers/gpu/drm/omapdrm/omap_connector.c b/drivers/gpu/drm/omapdrm/omap_connector.c
index 2ddb856..3b60086 100644 (file)
--- a/drivers/gpu/drm/omapdrm/omap_connector.c
+++ b/drivers/gpu/drm/omapdrm/omap_connector.c
@@ -62,7 +62,7 @@ static enum drm_connector_status omap_connector_detect(
 {
        struct omap_connector *omap_connector = to_omap_connector(connector);
        struct omap_dss_device *dssdev = omap_connector->dssdev;
-       struct omap_dss_driver *dssdrv = dssdev->driver;
+       const struct omap_dss_driver *dssdrv = dssdev->driver;
        enum drm_connector_status ret;
 
        if (dssdrv->detect) {
@@ -107,7 +107,7 @@ static int omap_connector_get_modes(struct drm_connector *connector)
 {
        struct omap_connector *omap_connector = to_omap_connector(connector);
        struct omap_dss_device *dssdev = omap_connector->dssdev;
-       struct omap_dss_driver *dssdrv = dssdev->driver;
+       const struct omap_dss_driver *dssdrv = dssdev->driver;
        struct drm_device *dev = connector->dev;
        int n = 0;
 
@@ -170,7 +170,7 @@ static int omap_connector_mode_valid(struct drm_connector *connector,
 {
        struct omap_connector *omap_connector = to_omap_connector(connector);
        struct omap_dss_device *dssdev = omap_connector->dssdev;
-       struct omap_dss_driver *dssdrv = dssdev->driver;
+       const struct omap_dss_driver *dssdrv = dssdev->driver;
        struct videomode vm = {0};
        struct drm_device *dev = connector->dev;
        struct drm_display_mode *new_mode;

diff --git a/drivers/gpu/drm/omapdrm/omap_encoder.c b/drivers/gpu/drm/omapdrm/omap_encoder.c
index fcdf4b0..ec0f451 100644 (file)
--- a/drivers/gpu/drm/omapdrm/omap_encoder.c
+++ b/drivers/gpu/drm/omapdrm/omap_encoder.c
@@ -94,7 +94,7 @@ static void omap_encoder_disable(struct drm_encoder *encoder)
 {
        struct omap_encoder *omap_encoder = to_omap_encoder(encoder);
        struct omap_dss_device *dssdev = omap_encoder->dssdev;
-       struct omap_dss_driver *dssdrv = dssdev->driver;
+       const struct omap_dss_driver *dssdrv = dssdev->driver;
 
        dssdrv->disable(dssdev);
 }
@@ -106,7 +106,7 @@ static int omap_encoder_update(struct drm_encoder *encoder,
        struct drm_device *dev = encoder->dev;
        struct omap_encoder *omap_encoder = to_omap_encoder(encoder);
        struct omap_dss_device *dssdev = omap_encoder->dssdev;
-       struct omap_dss_driver *dssdrv = dssdev->driver;
+       const struct omap_dss_driver *dssdrv = dssdev->driver;
        int ret;
 
        if (dssdrv->check_timings) {
@@ -137,7 +137,7 @@ static void omap_encoder_enable(struct drm_encoder *encoder)
 {
        struct omap_encoder *omap_encoder = to_omap_encoder(encoder);
        struct omap_dss_device *dssdev = omap_encoder->dssdev;
-       struct omap_dss_driver *dssdrv = dssdev->driver;
+       const struct omap_dss_driver *dssdrv = dssdev->driver;
        int r;
 
        omap_encoder_update(encoder, omap_crtc_channel(encoder->crtc),