[Intel-gfx] [PATCH 07/33] drm/i915/gt: Mark up ips_mchdev pointer access

[Venkata Sandeep Dhanalakota]

On 19/12/12 02:04, Chris Wilson wrote:
> drivers/gpu/drm/i915/gt/intel_rps.c:1726:24: error: incompatible types in comparison expression (different address spaces):
> drivers/gpu/drm/i915/gt/intel_rps.c:1726:24:    struct drm_i915_private [noderef] <asn:4> *
> drivers/gpu/drm/i915/gt/intel_rps.c:1726:24:    struct drm_i915_private *
> 
> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
> ---
>  drivers/gpu/drm/i915/gt/intel_rps.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i915/gt/intel_rps.c b/drivers/gpu/drm/i915/gt/intel_rps.c
> index fd01e4100fc1..106c9fce9d6c 100644
> --- a/drivers/gpu/drm/i915/gt/intel_rps.c
> +++ b/drivers/gpu/drm/i915/gt/intel_rps.c
> @@ -1723,7 +1723,7 @@ void intel_rps_driver_register(struct intel_rps *rps)
>  
>  void intel_rps_driver_unregister(struct intel_rps *rps)
>  {
> -	if (ips_mchdev == rps_to_i915(rps))
> +	if (rcu_access_pointer(ips_mchdev) == rps_to_i915(rps))
>  		rcu_assign_pointer(ips_mchdev, NULL);
>  }
Right way to access rcu pointer.

Reviewed-by: Venkata Sandeep Dhanalakota <venkata.s.dhanalakota at intel.com>
>  
> -- 
> 2.24.0
> 
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