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SubjectRe: [PATCH] drm/radeon: remove three set but not used variable
On Thu, Dec 26, 2019 at 08:07:50PM +0800, yu kuai wrote:
> Fixes gcc '-Wunused-but-set-variable' warning:
>
> drivers/gpu/drm/radeon/radeon_atombios.c: In function
> ‘radeon_get_atom_connector_info_from_object_table’:
> drivers/gpu/drm/radeon/radeon_atombios.c:651:26: warning: variable
> ‘grph_obj_num’ set but not used [-Wunused-but-set-variable]
> drivers/gpu/drm/radeon/radeon_atombios.c:651:13: warning: variable
> ‘grph_obj_id’ set but not used [-Wunused-but-set-variable]
> drivers/gpu/drm/radeon/radeon_atombios.c:573:37: warning: variable
> ‘con_obj_type’ set but not used [-Wunused-but-set-variable]
>
> They are never used, and so can be removed.
>
> Signed-off-by: yu kuai <yukuai3@huawei.com>

Thanks!

Acked-by: Huang Rui <ray.huang@amd.com>

> ---
> drivers/gpu/drm/radeon/radeon_atombios.c | 15 ++-------------
> 1 file changed, 2 insertions(+), 13 deletions(-)
>
> diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c
> index 072e6daedf7a..848ef68d9086 100644
> --- a/drivers/gpu/drm/radeon/radeon_atombios.c
> +++ b/drivers/gpu/drm/radeon/radeon_atombios.c
> @@ -570,7 +570,7 @@ bool radeon_get_atom_connector_info_from_object_table(struct drm_device *dev)
> path_size += le16_to_cpu(path->usSize);
>
> if (device_support & le16_to_cpu(path->usDeviceTag)) {
> - uint8_t con_obj_id, con_obj_num, con_obj_type;
> + uint8_t con_obj_id, con_obj_num;
>
> con_obj_id =
> (le16_to_cpu(path->usConnObjectId) & OBJECT_ID_MASK)
> @@ -578,9 +578,6 @@ bool radeon_get_atom_connector_info_from_object_table(struct drm_device *dev)
> con_obj_num =
> (le16_to_cpu(path->usConnObjectId) & ENUM_ID_MASK)
> >> ENUM_ID_SHIFT;
> - con_obj_type =
> - (le16_to_cpu(path->usConnObjectId) &
> - OBJECT_TYPE_MASK) >> OBJECT_TYPE_SHIFT;
>
> /* TODO CV support */
> if (le16_to_cpu(path->usDeviceTag) ==
> @@ -648,15 +645,7 @@ bool radeon_get_atom_connector_info_from_object_table(struct drm_device *dev)
> router.ddc_valid = false;
> router.cd_valid = false;
> for (j = 0; j < ((le16_to_cpu(path->usSize) - 8) / 2); j++) {
> - uint8_t grph_obj_id, grph_obj_num, grph_obj_type;
> -
> - grph_obj_id =
> - (le16_to_cpu(path->usGraphicObjIds[j]) &
> - OBJECT_ID_MASK) >> OBJECT_ID_SHIFT;
> - grph_obj_num =
> - (le16_to_cpu(path->usGraphicObjIds[j]) &
> - ENUM_ID_MASK) >> ENUM_ID_SHIFT;
> - grph_obj_type =
> + uint8_t grph_obj_type =
> (le16_to_cpu(path->usGraphicObjIds[j]) &
> OBJECT_TYPE_MASK) >> OBJECT_TYPE_SHIFT;
>
> --
> 2.17.2
>
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