Re: [PATCH bpf-next 1/2] bpf, cpumap: Remove unused cmap field from bpf_cpu_map_entry

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On Fri, Jul 28, 2023 at 09:49:41AM +0800, Hou Tao wrote:
> From: Hou Tao <houtao1@xxxxxxxxxx>
> 
> Since commit cdfafe98cabe ("xdp: Make cpumap flush_list common for all
> map instances"), cmap is no longer used, so just remove it.

nit, should it have Fixes: cdfafe98cabe ?

same for the other patch, other than that for the patchset:

Acked-by: Jiri Olsa <jolsa@xxxxxxxxxx>

jirka

> 
> Signed-off-by: Hou Tao <houtao1@xxxxxxxxxx>
> ---
>  kernel/bpf/cpumap.c | 3 ---
>  1 file changed, 3 deletions(-)
> 
> diff --git a/kernel/bpf/cpumap.c b/kernel/bpf/cpumap.c
> index 6ae02be7a48e..0a16e30b16ef 100644
> --- a/kernel/bpf/cpumap.c
> +++ b/kernel/bpf/cpumap.c
> @@ -60,8 +60,6 @@ struct bpf_cpu_map_entry {
>  	/* XDP can run multiple RX-ring queues, need __percpu enqueue store */
>  	struct xdp_bulk_queue __percpu *bulkq;
>  
> -	struct bpf_cpu_map *cmap;
> -
>  	/* Queue with potential multi-producers, and single-consumer kthread */
>  	struct ptr_ring *queue;
>  	struct task_struct *kthread;
> @@ -588,7 +586,6 @@ static long cpu_map_update_elem(struct bpf_map *map, void *key, void *value,
>  		rcpu = __cpu_map_entry_alloc(map, &cpumap_value, key_cpu);
>  		if (!rcpu)
>  			return -ENOMEM;
> -		rcpu->cmap = cmap;
>  	}
>  	rcu_read_lock();
>  	__cpu_map_entry_replace(cmap, key_cpu, rcpu);
> -- 
> 2.29.2
> 




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