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Subject: media: i2c: tvp5150: Constify some structures
Author: Christophe JAILLET <christophe.jail...@wanadoo.fr>
Date: Sun May 5 09:24:02 2024 +0200
'vbi_ram_default' and 'tvp5150_config' are not modified in this diver
and are only used as a const struct.
Constifying these structures moves some data to a read-only section, so
increase overall security.
On a x86_64, with allmodconfig:
Before:
text data bss dec hex filename
57197 2936 36 60169 eb09 drivers/media/i2c/tvp5150.o
After:
text data bss dec hex filename
57517 2608 36 60161 eb01 drivers/media/i2c/tvp5150.o
Signed-off-by: Christophe JAILLET <christophe.jail...@wanadoo.fr>
Signed-off-by: Hans Verkuil <hverkuil-ci...@xs4all.nl>
drivers/media/i2c/tvp5150.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/drivers/media/i2c/tvp5150.c b/drivers/media/i2c/tvp5150.c
index 64b91aa3c82a..0fe6a37bdb7f 100644
--- a/drivers/media/i2c/tvp5150.c
+++ b/drivers/media/i2c/tvp5150.c
@@ -514,7 +514,7 @@ struct i2c_vbi_ram_value {
* and so on. There are 16 possible locations from 0 to 15.
*/
-static struct i2c_vbi_ram_value vbi_ram_default[] = {
+static const struct i2c_vbi_ram_value vbi_ram_default[] = {
/*
* FIXME: Current api doesn't handle all VBI types, those not
@@ -1812,7 +1812,7 @@ static const struct regmap_access_table
tvp5150_readable_table = {
.n_yes_ranges = ARRAY_SIZE(tvp5150_readable_ranges),
};
-static struct regmap_config tvp5150_config = {
+static const struct regmap_config tvp5150_config = {
.reg_bits = 8,
.val_bits = 8,
.max_register = 0xff,
