extern struct page *mem_map;
struct page {
	unsigned long flags;
};
struct scatterlist {
	struct page *page;
	unsigned int offset;
};
struct request {
	unsigned int cmd_flags;
};
inline __attribute__ ((always_inline))
void sg_set_buf(struct scatterlist *sg, const void *buf, unsigned int buflen)
{
	sg->page =
	    (mem_map +
	     ((((unsigned long)(buf) - 0x80000000) >> 12) -
	      ((0x0C000000 >> 12))));
	sg->offset = ((unsigned long)(buf) & ~(~((1UL << 12) - 1)));
}

inline __attribute__ ((always_inline))
void sg_init_one(struct scatterlist *sg, const void *buf, unsigned int buflen)
{
	memset(sg, 0, sizeof(*sg));
	sg_set_buf(sg, buf, buflen);
};
struct mmc_card {
	unsigned int state;
};
struct mmc_queue {
	struct mmc_card *card;
	void *data;
};
struct mmc_blk_data {
	struct mmc_queue queue;
};
static unsigned int mmc_sd_num_wr_blocks(struct mmc_card *card)
{
	unsigned int blocks;
	struct scatterlist sg;
	sg_init_one(&sg, &blocks, 4);
}
int mmc_blk_issue_rq(struct mmc_queue *mq, struct request *req)
{
	struct mmc_blk_data *md = mq->data;
	struct mmc_card *card = md->queue.card;
	if (((req)->cmd_flags & 1) != 0 && ((card)->state & (1 << 3))) {
		unsigned int blocks;
		blocks = mmc_sd_num_wr_blocks(card);
		if (blocks != (unsigned int)-1) {
			do {
				local_irq_disable();
			}
			while (0);
		}
	}
}