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[4/9] drm/i915/gvt: Constify intel_gvt_sched_policy_ops

Message ID 20211204105527.15741-5-rikard.falkeborn@gmail.com (mailing list archive)
State New, archived
Headers show
Series drm/i915/gvt: Constify static structs | expand

Commit Message

Rikard Falkeborn Dec. 4, 2021, 10:55 a.m. UTC
These are never modified, so make them const to allow the compiler to
put them in read-only memory.

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
---
 drivers/gpu/drm/i915/gvt/sched_policy.c | 2 +-
 drivers/gpu/drm/i915/gvt/scheduler.h    | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

Comments

Wang, Zhi A Dec. 10, 2021, 8:11 a.m. UTC | #1
On 12/4/2021 12:55 PM, Rikard Falkeborn wrote:
> These are never modified, so make them const to allow the compiler to
> put them in read-only memory.
>
> Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
> ---
>   drivers/gpu/drm/i915/gvt/sched_policy.c | 2 +-
>   drivers/gpu/drm/i915/gvt/scheduler.h    | 2 +-
>   2 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/gvt/sched_policy.c b/drivers/gpu/drm/i915/gvt/sched_policy.c
> index 036b74fe9298..c077fb4674f0 100644
> --- a/drivers/gpu/drm/i915/gvt/sched_policy.c
> +++ b/drivers/gpu/drm/i915/gvt/sched_policy.c
> @@ -368,7 +368,7 @@ static void tbs_sched_stop_schedule(struct intel_vgpu *vgpu)
>   	vgpu_data->active = false;
>   }
>   
> -static struct intel_gvt_sched_policy_ops tbs_schedule_ops = {
> +static const struct intel_gvt_sched_policy_ops tbs_schedule_ops = {
>   	.init = tbs_sched_init,
>   	.clean = tbs_sched_clean,
>   	.init_vgpu = tbs_sched_init_vgpu,
> diff --git a/drivers/gpu/drm/i915/gvt/scheduler.h b/drivers/gpu/drm/i915/gvt/scheduler.h
> index 7c86984a842f..1f391b3da2cc 100644
> --- a/drivers/gpu/drm/i915/gvt/scheduler.h
> +++ b/drivers/gpu/drm/i915/gvt/scheduler.h
> @@ -56,7 +56,7 @@ struct intel_gvt_workload_scheduler {
>   	wait_queue_head_t waitq[I915_NUM_ENGINES];
>   
>   	void *sched_data;
> -	struct intel_gvt_sched_policy_ops *sched_ops;
> +	const struct intel_gvt_sched_policy_ops *sched_ops;
>   };
>   
>   #define INDIRECT_CTX_ADDR_MASK 0xffffffc0

Reviewed-by: Zhi Wang <zhi.a.wang@intel.com>
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Patch

diff --git a/drivers/gpu/drm/i915/gvt/sched_policy.c b/drivers/gpu/drm/i915/gvt/sched_policy.c
index 036b74fe9298..c077fb4674f0 100644
--- a/drivers/gpu/drm/i915/gvt/sched_policy.c
+++ b/drivers/gpu/drm/i915/gvt/sched_policy.c
@@ -368,7 +368,7 @@  static void tbs_sched_stop_schedule(struct intel_vgpu *vgpu)
 	vgpu_data->active = false;
 }
 
-static struct intel_gvt_sched_policy_ops tbs_schedule_ops = {
+static const struct intel_gvt_sched_policy_ops tbs_schedule_ops = {
 	.init = tbs_sched_init,
 	.clean = tbs_sched_clean,
 	.init_vgpu = tbs_sched_init_vgpu,
diff --git a/drivers/gpu/drm/i915/gvt/scheduler.h b/drivers/gpu/drm/i915/gvt/scheduler.h
index 7c86984a842f..1f391b3da2cc 100644
--- a/drivers/gpu/drm/i915/gvt/scheduler.h
+++ b/drivers/gpu/drm/i915/gvt/scheduler.h
@@ -56,7 +56,7 @@  struct intel_gvt_workload_scheduler {
 	wait_queue_head_t waitq[I915_NUM_ENGINES];
 
 	void *sched_data;
-	struct intel_gvt_sched_policy_ops *sched_ops;
+	const struct intel_gvt_sched_policy_ops *sched_ops;
 };
 
 #define INDIRECT_CTX_ADDR_MASK 0xffffffc0