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authorChristophe JAILLET <christophe.jaillet@wanadoo.fr>2025-05-25 14:47:35 +0200
committerIlpo Järvinen <ilpo.jarvinen@linux.intel.com>2025-05-26 15:31:27 +0300
commit9c96808f10d84156b5e98e16176b725ec5a1386f (patch)
tree5c9fab183d6d4d7d4a7e6d56b7efa8a8d6c2ae67
parent69157b00b526c31522a00b9908bfd53fa21b47f2 (diff)
thermal/drivers/acerhdf: Constify struct thermal_zone_device_ops
'struct thermal_zone_device_ops' could be left unmodified in this driver. Constifying this structure moves some data to a read-only section, so increases overall security, especially when the structure holds some function pointers. While at it, also constify a struct thermal_zone_params. On a x86_64, with allmodconfig: Before: ====== text data bss dec hex filename 26422 12584 512 39518 9a5e drivers/platform/x86/acerhdf.o After: ===== text data bss dec hex filename 26646 12360 512 39518 9a5e drivers/platform/x86/acerhdf.o Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Link: https://lore.kernel.org/r/e502fadf2c6b24fc4ec3a7880533f7ca68429720.1748177235.git.christophe.jaillet@wanadoo.fr Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
-rw-r--r--drivers/platform/x86/acerhdf.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/platform/x86/acerhdf.c b/drivers/platform/x86/acerhdf.c
index 4c3bb68e8fe4..5ce5ad3efe69 100644
--- a/drivers/platform/x86/acerhdf.c
+++ b/drivers/platform/x86/acerhdf.c
@@ -271,7 +271,7 @@ static const struct bios_settings bios_tbl[] __initconst = {
* this struct is used to instruct thermal layer to use bang_bang instead of
* default governor for acerhdf
*/
-static struct thermal_zone_params acerhdf_zone_params = {
+static const struct thermal_zone_params acerhdf_zone_params = {
.governor_name = "bang_bang",
};
@@ -426,7 +426,7 @@ static int acerhdf_get_crit_temp(struct thermal_zone_device *thermal,
}
/* bind callback functions to thermalzone */
-static struct thermal_zone_device_ops acerhdf_dev_ops = {
+static const struct thermal_zone_device_ops acerhdf_dev_ops = {
.should_bind = acerhdf_should_bind,
.get_temp = acerhdf_get_ec_temp,
.change_mode = acerhdf_change_mode,