2017-07-02 09:07:04

by Arvind Yadav

Subject: [PATCH] drm: radeon: radeon_ttm: constify ttm_place structures.

ttm_place are not supposed to change at runtime. All functions
working with ttm_place provided by <drm/ttm/ttm_placement.h> work
with const ttm_place. So mark the non-const structs as const.

File size before:
text data bss dec hex filename
9235 344 136 9715 25f3 drivers/gpu/drm/radeon/radeon_ttm.o

File size After adding 'const':
text data bss dec hex filename
9267 312 136 9715 25f3 drivers/gpu/drm/radeon/radeon_ttm.o

Signed-off-by: Arvind Yadav <[email protected]>
---
drivers/gpu/drm/radeon/radeon_ttm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
index 8b7623b..6499832 100644
--- a/drivers/gpu/drm/radeon/radeon_ttm.c
+++ b/drivers/gpu/drm/radeon/radeon_ttm.c
@@ -178,7 +178,7 @@ static int radeon_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
static void radeon_evict_flags(struct ttm_buffer_object *bo,
struct ttm_placement *placement)
{
- static struct ttm_place placements = {
+ static const struct ttm_place placements = {
.fpfn = 0,
.lpfn = 0,
.flags = TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM
--
2.7.4

2017-07-02 12:44:30

by Christian König

Subject: Re: [PATCH] drm: radeon: radeon_ttm: constify ttm_place structures.

Am 02.07.2017 um 11:06 schrieb Arvind Yadav:
> ttm_place are not supposed to change at runtime. All functions
> working with ttm_place provided by <drm/ttm/ttm_placement.h> work
> with const ttm_place. So mark the non-const structs as const.
>
> File size before:
> text data bss dec hex filename
> 9235 344 136 9715 25f3 drivers/gpu/drm/radeon/radeon_ttm.o
>
> File size After adding 'const':
> text data bss dec hex filename
> 9267 312 136 9715 25f3 drivers/gpu/drm/radeon/radeon_ttm.o
>
> Signed-off-by: Arvind Yadav <[email protected]>

Reviewed-by: Christian König <[email protected]>

> ---
> drivers/gpu/drm/radeon/radeon_ttm.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
> index 8b7623b..6499832 100644
> --- a/drivers/gpu/drm/radeon/radeon_ttm.c
> +++ b/drivers/gpu/drm/radeon/radeon_ttm.c
> @@ -178,7 +178,7 @@ static int radeon_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
> static void radeon_evict_flags(struct ttm_buffer_object *bo,
> struct ttm_placement *placement)
> {
> - static struct ttm_place placements = {
> + static const struct ttm_place placements = {
> .fpfn = 0,
> .lpfn = 0,
> .flags = TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM

2017-07-03 07:18:44

by Christian König

Subject: Re: [PATCH] drm: radeon: radeon_ttm: constify ttm_place structures.

Am 02.07.2017 um 11:06 schrieb Arvind Yadav:
> ttm_place are not supposed to change at runtime. All functions
> working with ttm_place provided by <drm/ttm/ttm_placement.h> work
> with const ttm_place. So mark the non-const structs as const.
>
> File size before:
> text data bss dec hex filename
> 9235 344 136 9715 25f3 drivers/gpu/drm/radeon/radeon_ttm.o
>
> File size After adding 'const':
> text data bss dec hex filename
> 9267 312 136 9715 25f3 drivers/gpu/drm/radeon/radeon_ttm.o
>
> Signed-off-by: Arvind Yadav <[email protected]>

Reviewed-by: Christian König <[email protected]>

> ---
> drivers/gpu/drm/radeon/radeon_ttm.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
> index 8b7623b..6499832 100644
> --- a/drivers/gpu/drm/radeon/radeon_ttm.c
> +++ b/drivers/gpu/drm/radeon/radeon_ttm.c
> @@ -178,7 +178,7 @@ static int radeon_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
> static void radeon_evict_flags(struct ttm_buffer_object *bo,
> struct ttm_placement *placement)
> {
> - static struct ttm_place placements = {
> + static const struct ttm_place placements = {
> .fpfn = 0,
> .lpfn = 0,
> .flags = TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM