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authorChristophe JAILLET <christophe.jaillet@wanadoo.fr>2024-07-01 21:53:16 +0200
committerUlf Hansson <ulf.hansson@linaro.org>2024-07-09 13:10:39 +0200
commit3324a8196ab91051bd4528ca16dce1dbc7bfabb7 (patch)
tree3915f1faa148958086f144988ee805c9a2f30566 /drivers/pmdomain
parentvenus: pm_helpers: Use dev_pm_genpd_set_hwmode to switch GDSC mode on V6 (diff)
downloadlinux-3324a8196ab91051bd4528ca16dce1dbc7bfabb7.tar.xz
linux-3324a8196ab91051bd4528ca16dce1dbc7bfabb7.zip
pmdomain: amlogic: Constify struct meson_secure_pwrc_domain_desc
'struct meson_secure_pwrc_domain_desc' is not modified in this driver. Constifying this structure moves some data to a read-only section, so increase overall security. On a x86_64, with allmodconfig, as an example: Before: ====== text data bss dec hex filename 4909 4072 0 8981 2315 drivers/pmdomain/amlogic/meson-secure-pwrc.o After: ===== text data bss dec hex filename 8605 392 0 8997 2325 drivers/pmdomain/amlogic/meson-secure-pwrc.o Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://lore.kernel.org/r/871d6b708de8bb42e1fabd8a601dc9a9a217cf00.1719863475.git.christophe.jaillet@wanadoo.fr Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/pmdomain')
-rw-r--r--drivers/pmdomain/amlogic/meson-secure-pwrc.c14
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/pmdomain/amlogic/meson-secure-pwrc.c b/drivers/pmdomain/amlogic/meson-secure-pwrc.c
index f6729eea6b8c..42ce41a2fe3a 100644
--- a/drivers/pmdomain/amlogic/meson-secure-pwrc.c
+++ b/drivers/pmdomain/amlogic/meson-secure-pwrc.c
@@ -47,7 +47,7 @@ struct meson_secure_pwrc_domain_desc {
struct meson_secure_pwrc_domain_data {
unsigned int count;
- struct meson_secure_pwrc_domain_desc *domains;
+ const struct meson_secure_pwrc_domain_desc *domains;
};
static bool pwrc_secure_is_off(struct meson_secure_pwrc_domain *pwrc_domain)
@@ -111,7 +111,7 @@ static int meson_secure_pwrc_on(struct generic_pm_domain *domain)
.parent = __parent, \
}
-static struct meson_secure_pwrc_domain_desc a1_pwrc_domains[] = {
+static const struct meson_secure_pwrc_domain_desc a1_pwrc_domains[] = {
SEC_PD(DSPA, 0),
SEC_PD(DSPB, 0),
/* UART should keep working in ATF after suspend and before resume */
@@ -138,7 +138,7 @@ static struct meson_secure_pwrc_domain_desc a1_pwrc_domains[] = {
SEC_PD(RSA, 0),
};
-static struct meson_secure_pwrc_domain_desc a4_pwrc_domains[] = {
+static const struct meson_secure_pwrc_domain_desc a4_pwrc_domains[] = {
SEC_PD(A4_AUDIO, 0),
SEC_PD(A4_SDIOA, 0),
SEC_PD(A4_EMMC, 0),
@@ -156,7 +156,7 @@ static struct meson_secure_pwrc_domain_desc a4_pwrc_domains[] = {
SEC_PD(A4_AO_IR, GENPD_FLAG_ALWAYS_ON),
};
-static struct meson_secure_pwrc_domain_desc a5_pwrc_domains[] = {
+static const struct meson_secure_pwrc_domain_desc a5_pwrc_domains[] = {
SEC_PD(A5_NNA, 0),
SEC_PD(A5_AUDIO, 0),
SEC_PD(A5_SDIOA, 0),
@@ -172,7 +172,7 @@ static struct meson_secure_pwrc_domain_desc a5_pwrc_domains[] = {
SEC_PD(A5_DSPA, 0),
};
-static struct meson_secure_pwrc_domain_desc c3_pwrc_domains[] = {
+static const struct meson_secure_pwrc_domain_desc c3_pwrc_domains[] = {
SEC_PD(C3_NNA, 0),
SEC_PD(C3_AUDIO, 0),
SEC_PD(C3_SDIOA, 0),
@@ -189,7 +189,7 @@ static struct meson_secure_pwrc_domain_desc c3_pwrc_domains[] = {
SEC_PD(C3_VCODEC, 0),
};
-static struct meson_secure_pwrc_domain_desc s4_pwrc_domains[] = {
+static const struct meson_secure_pwrc_domain_desc s4_pwrc_domains[] = {
SEC_PD(S4_DOS_HEVC, 0),
SEC_PD(S4_DOS_VDEC, 0),
SEC_PD(S4_VPU_HDMI, 0),
@@ -201,7 +201,7 @@ static struct meson_secure_pwrc_domain_desc s4_pwrc_domains[] = {
SEC_PD(S4_AUDIO, 0),
};
-static struct meson_secure_pwrc_domain_desc t7_pwrc_domains[] = {
+static const struct meson_secure_pwrc_domain_desc t7_pwrc_domains[] = {
SEC_PD(T7_DSPA, 0),
SEC_PD(T7_DSPB, 0),
TOP_PD(T7_DOS_HCODEC, 0, PWRC_T7_NIC3_ID),