[MMC] Remove block knowledge from MMCI driver.

Convert MMCI driver to use the scatter list provided by the upper
MMC layers.  This removes all knowledge of struct request from the
MMCI driver.

drivers/mmc/mmci.c

@@ -501,7 +501,7 @@ static int mmci_probe(struct amba_device *dev, void *id)
 	 * We can do SGIO
 	 */
 	mmc->max_hw_segs = 16;
-	mmc->max_phys_segs = 16;
+	mmc->max_phys_segs = NR_SG;
 
 	/*
 	 * Since we only have a 16-bit data length register, we must

drivers/mmc/mmci.h

@@ -139,7 +139,6 @@ struct mmci_host {
 	struct timer_list	timer;
 	unsigned int		oldstat;
 
-	struct scatterlist	sg[NR_SG];
 	unsigned int		sg_len;
 
 	/* pio stuff */
@@ -150,14 +149,11 @@ struct mmci_host {
 
 static inline void mmci_init_sg(struct mmci_host *host, struct mmc_data *data)
 {
-	struct scatterlist *sg = host->sg;
-	struct request *req = data->req;
-
 	/*
 	 * Ideally, we want the higher levels to pass us a scatter list.
 	 */
-	host->sg_len = blk_rq_map_sg(req->q, req, sg);
-	host->sg_ptr = sg;
+	host->sg_len = data->sg_len;
+	host->sg_ptr = data->sg;
 	host->sg_off = 0;
 }