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Commit 7d7aa23c authored by Russell King's avatar Russell King
Browse files

ARM: mmci: no need to call flush_dcache_page() with sg_miter API 



The sg_miter API provides the required cache maintainence, so we don't
need to do that ourselves.  Remove the unnecessary additional cache
maintainence.

Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent c8afc9d5

drivers/mmc/host/mmci.c

+0 −19
Original line number Diff line number Diff line
@@ -311,22 +311,6 @@ mmci_data_irq(struct mmci_host *host, struct mmc_data *data, 
			data->error = -EIO;

		}

		host->data_xfered = round_down(success, data->blksz);



		/*

		 * We hit an error condition.  Ensure that any data

		 * partially written to a page is properly coherent.

		 */

		if (data->flags & MMC_DATA_READ) {

			struct sg_mapping_iter *sg_miter = &host->sg_miter;

			unsigned long flags;



			local_irq_save(flags);

			if (sg_miter_next(sg_miter)) {

				flush_dcache_page(sg_miter->page);

				sg_miter_stop(sg_miter);

			}

			local_irq_restore(flags);

		}

	}



	if (status & MCI_DATABLOCKEND)
@@ -510,9 +494,6 @@ static irqreturn_t mmci_pio_irq(int irq, void *dev_id) 
		if (remain)

			break;



		if (status & MCI_RXACTIVE)

			flush_dcache_page(sg_miter->page);



		status = readl(base + MMCISTATUS);

	} while (1);