drm/bridge: fix -Wunused-const-variable= warning

When building with W=1, the following warning occurs.

drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c:48:17: warning: ‘anx781x_i2c_addresses’ defined but not used [-Wunused-const-variable=]  static const u8 anx781x_i2c_addresses[] = {
                 ^~~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c:40:17: warning: ‘anx7808_i2c_addresses’ defined but not used [-Wunused-const-variable=]  static const u8 anx7808_i2c_addresses[] = {

When CONFIG_IO is disabled, above two variables are not used,
since the place where it is used is inclueded in the macro
CONFIG_OF.

Even for drivers that do not depend on CONFIG_OF, it's almost
always better to leave out the of_match_ptr(), since the only
thing it can possibly do is to save a few bytes of .text if a
driver can be used both with and without it. Hence we remove
all of_match_ptr() used in other places.

Fixes: 0647e7dd3f7a ("drm/bridge: Add Analogix anx78xx support")
Signed-off-by: Zhu Wang <wangzhu9@huawei.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230731021345.219588-1-wangzhu9@huawei.com

diff --git a/drivers/gpu/drm/bridge/analogix/analogix-anx6345.c b/drivers/gpu/drm/bridge/analogix/analogix-anx6345.c
index 72ab2ab..c9e3573 100644 (file)
--- a/drivers/gpu/drm/bridge/analogix/analogix-anx6345.c
+++ b/drivers/gpu/drm/bridge/analogix/analogix-anx6345.c
@@ -813,7 +813,7 @@ MODULE_DEVICE_TABLE(of, anx6345_match_table);
 static struct i2c_driver anx6345_driver = {
        .driver = {
                   .name = "anx6345",
-                  .of_match_table = of_match_ptr(anx6345_match_table),
+                  .of_match_table = anx6345_match_table,
                  },
        .probe = anx6345_i2c_probe,
        .remove = anx6345_i2c_remove,

diff --git a/drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c b/drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c
index 06a3e32..800555a 100644 (file)
--- a/drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c
+++ b/drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c
@@ -1373,7 +1373,6 @@ static const struct i2c_device_id anx78xx_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, anx78xx_id);
 
-#if IS_ENABLED(CONFIG_OF)
 static const struct of_device_id anx78xx_match_table[] = {
        { .compatible = "analogix,anx7808", .data = anx7808_i2c_addresses },
        { .compatible = "analogix,anx7812", .data = anx781x_i2c_addresses },
@@ -1382,12 +1381,11 @@ static const struct of_device_id anx78xx_match_table[] = {
        { /* sentinel */ },
 };
 MODULE_DEVICE_TABLE(of, anx78xx_match_table);
-#endif
 
 static struct i2c_driver anx78xx_driver = {
        .driver = {
                   .name = "anx7814",
-                  .of_match_table = of_match_ptr(anx78xx_match_table),
+                  .of_match_table = anx78xx_match_table,
                  },
        .probe = anx78xx_i2c_probe,
        .remove = anx78xx_i2c_remove,

diff --git a/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c b/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c
index 0ff51f9..6af565a 100644 (file)
--- a/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c
+++ b/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c
@@ -2655,7 +2655,7 @@ MODULE_DEVICE_TABLE(of, mhdp_ids);
 static struct platform_driver mhdp_driver = {
        .driver = {
                .name           = "cdns-mhdp8546",
-               .of_match_table = of_match_ptr(mhdp_ids),
+               .of_match_table = mhdp_ids,
        },
        .probe  = cdns_mhdp_probe,
        .remove = cdns_mhdp_remove,

diff --git a/drivers/gpu/drm/bridge/chrontel-ch7033.c b/drivers/gpu/drm/bridge/chrontel-ch7033.c
index a854eb8..483c28c 100644 (file)
--- a/drivers/gpu/drm/bridge/chrontel-ch7033.c
+++ b/drivers/gpu/drm/bridge/chrontel-ch7033.c
@@ -607,7 +607,7 @@ static struct i2c_driver ch7033_driver = {
        .remove = ch7033_remove,
        .driver = {
                .name = "ch7033",
-               .of_match_table = of_match_ptr(ch7033_dt_ids),
+               .of_match_table = ch7033_dt_ids,
        },
        .id_table = ch7033_ids,
 };

diff --git a/drivers/gpu/drm/bridge/sil-sii8620.c b/drivers/gpu/drm/bridge/sil-sii8620.c
index 79b09cc..599164e 100644 (file)
--- a/drivers/gpu/drm/bridge/sil-sii8620.c
+++ b/drivers/gpu/drm/bridge/sil-sii8620.c
@@ -2376,7 +2376,7 @@ MODULE_DEVICE_TABLE(i2c, sii8620_id);
 static struct i2c_driver sii8620_driver = {
        .driver = {
                .name   = "sii8620",
-               .of_match_table = of_match_ptr(sii8620_dt_match),
+               .of_match_table = sii8620_dt_match,
        },
        .probe          = sii8620_probe,
        .remove         = sii8620_remove,

diff --git a/drivers/gpu/drm/bridge/ti-tfp410.c b/drivers/gpu/drm/bridge/ti-tfp410.c
index 22b0726..28848a8 100644 (file)
--- a/drivers/gpu/drm/bridge/ti-tfp410.c
+++ b/drivers/gpu/drm/bridge/ti-tfp410.c
@@ -448,7 +448,7 @@ MODULE_DEVICE_TABLE(i2c, tfp410_i2c_ids);
 static struct i2c_driver tfp410_i2c_driver = {
        .driver = {
                .name   = "tfp410",
-               .of_match_table = of_match_ptr(tfp410_match),
+               .of_match_table = tfp410_match,
        },
        .id_table       = tfp410_i2c_ids,
        .probe          = tfp410_i2c_probe,