diff mbox series

drm/rockchip: Constify struct drm_encoder_helper_funcs

Message ID 128f9941aab3b1367eb7abca4ac26e2e5dd6ad21.1720903899.git.christophe.jaillet@wanadoo.fr (mailing list archive)
State New, archived
Headers show
Series drm/rockchip: Constify struct drm_encoder_helper_funcs | expand

Commit Message

Christophe JAILLET July 13, 2024, 8:52 p.m. UTC
'struct drm_encoder_helper_funcs' is not modified in these drivers.

Constifying this structure 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
   7458	    552	      0	   8010	   1f4a	drivers/gpu/drm/rockchip/analogix_dp-rockchip.o

After:
=====
   text	   data	    bss	    dec	    hex	filename
   7578	    424	      0	   8002	   1f42	drivers/gpu/drm/rockchip/analogix_dp-rockchip.o

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
Compile tested-only.
---
 drivers/gpu/drm/rockchip/analogix_dp-rockchip.c | 2 +-
 drivers/gpu/drm/rockchip/inno_hdmi.c            | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

Comments

Heiko Stübner Aug. 15, 2024, 10:40 a.m. UTC | #1
On Sat, 13 Jul 2024 22:52:05 +0200, Christophe JAILLET wrote:
> 'struct drm_encoder_helper_funcs' is not modified in these drivers.
> 
> Constifying this structure 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
>    7458	    552	      0	   8010	   1f4a	drivers/gpu/drm/rockchip/analogix_dp-rockchip.o
> 
> [...]

Applied, thanks!

[1/1] drm/rockchip: Constify struct drm_encoder_helper_funcs
      commit: 7af62003181f8589b3b597ef96b147d4303771c4

Best regards,
diff mbox series

Patch

diff --git a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
index 362c7951ca4a..d3341edfe4f4 100644
--- a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
+++ b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
@@ -262,7 +262,7 @@  rockchip_dp_drm_encoder_atomic_check(struct drm_encoder *encoder,
 	return 0;
 }
 
-static struct drm_encoder_helper_funcs rockchip_dp_encoder_helper_funcs = {
+static const struct drm_encoder_helper_funcs rockchip_dp_encoder_helper_funcs = {
 	.mode_fixup = rockchip_dp_drm_encoder_mode_fixup,
 	.mode_set = rockchip_dp_drm_encoder_mode_set,
 	.atomic_enable = rockchip_dp_drm_encoder_enable,
diff --git a/drivers/gpu/drm/rockchip/inno_hdmi.c b/drivers/gpu/drm/rockchip/inno_hdmi.c
index 2241e53a2946..44ce0f581062 100644
--- a/drivers/gpu/drm/rockchip/inno_hdmi.c
+++ b/drivers/gpu/drm/rockchip/inno_hdmi.c
@@ -545,7 +545,7 @@  inno_hdmi_encoder_atomic_check(struct drm_encoder *encoder,
 	return 0;
 }
 
-static struct drm_encoder_helper_funcs inno_hdmi_encoder_helper_funcs = {
+static const struct drm_encoder_helper_funcs inno_hdmi_encoder_helper_funcs = {
 	.atomic_check	= inno_hdmi_encoder_atomic_check,
 	.atomic_enable	= inno_hdmi_encoder_enable,
 	.atomic_disable	= inno_hdmi_encoder_disable,