> +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.