Re: [PATCH V5 6/8] block: introduce .last_merge and .hash to blk_mq_ctx

[Christoph Hellwig]

> +enum elv_merge elv_merge_ctx(struct request_queue *q, struct request **req,
> +		struct bio *bio, struct blk_mq_ctx *ctx)
> +{
> +	WARN_ON_ONCE(!q->mq_ops);
> +	return __elv_merge(q, req, bio, ctx->hash, ctx->last_merge);
> +}

This function only has a single caller, just open code it.