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pmdomain: amlogic: Constify struct meson_secure_pwrc_domain_desc

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'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>
This commit is contained in:
Christophe JAILLET 2024-07-01 21:53:16 +02:00 committed by Ulf Hansson
parent ec9a652e51
commit 3324a8196a
1 changed files with 7 additions and 7 deletions
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14
drivers/pmdomain/amlogic/meson-secure-pwrc.c
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@ -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),