drm/exynos: Constify struct exynos_drm_ipp_funcs

'struct exynos_drm_ipp_funcs' are 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, as an example:
Before:
======
   text	   data	    bss	    dec	    hex	filename
  20446	   1746	     16	  22208	   56c0	drivers/gpu/drm/exynos/exynos_drm_fimc.o

After:
=====
   text	   data	    bss	    dec	    hex	filename
  20446	   1714	     16	  22176	   56a0	drivers/gpu/drm/exynos/exynos_drm_fimc.o

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimc.c b/drivers/gpu/drm/exynos/exynos_drm_fimc.c
index 142184c8c3bc55665c224b38eb37c8a191e177a9..4d7ea65b7dd8366a2ca1c24f1c01d94105501b87 100644 (file)
--- a/drivers/gpu/drm/exynos/exynos_drm_fimc.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_fimc.c
@@ -1125,7 +1125,7 @@ static void fimc_abort(struct exynos_drm_ipp *ipp,
        }
 }
 
-static struct exynos_drm_ipp_funcs ipp_funcs = {
+static const struct exynos_drm_ipp_funcs ipp_funcs = {
        .commit = fimc_commit,
        .abort = fimc_abort,
 };

diff --git a/drivers/gpu/drm/exynos/exynos_drm_gsc.c b/drivers/gpu/drm/exynos/exynos_drm_gsc.c
index 1b111e2c33472bf65a1460bcb5d97f597cd9efa8..d80b0d1eb734e4be2d7399c60e4500450946ef06 100644 (file)
--- a/drivers/gpu/drm/exynos/exynos_drm_gsc.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_gsc.c
@@ -1162,7 +1162,7 @@ static void gsc_abort(struct exynos_drm_ipp *ipp,
        }
 }
 
-static struct exynos_drm_ipp_funcs ipp_funcs = {
+static const struct exynos_drm_ipp_funcs ipp_funcs = {
        .commit = gsc_commit,
        .abort = gsc_abort,
 };

diff --git a/drivers/gpu/drm/exynos/exynos_drm_scaler.c b/drivers/gpu/drm/exynos/exynos_drm_scaler.c
index a9d46989682420c0611cb6255733fb5099c81cb3..2788105ac780bc90d395978d7c91d4b8db340021 100644 (file)
--- a/drivers/gpu/drm/exynos/exynos_drm_scaler.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_scaler.c
@@ -403,7 +403,7 @@ static int scaler_commit(struct exynos_drm_ipp *ipp,
        return 0;
 }
 
-static struct exynos_drm_ipp_funcs ipp_funcs = {
+static const struct exynos_drm_ipp_funcs ipp_funcs = {
        .commit = scaler_commit,
 };