mmc: android-goldfish: use sg_copy_{from,to}_buffer
This handles highmem pages, and also cleans up the code.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
diff --git a/drivers/mmc/host/android-goldfish.c b/drivers/mmc/host/android-goldfish.c
index 63d2758..294de17 100644
--- a/drivers/mmc/host/android-goldfish.c
+++ b/drivers/mmc/host/android-goldfish.c
@@ -217,8 +217,8 @@ static void goldfish_mmc_xfer_done(struct goldfish_mmc_host *host,
* We don't really have DMA, so we need
* to copy from our platform driver buffer
*/
- uint8_t *dest = (uint8_t *)sg_virt(data->sg);
- memcpy(dest, host->virt_base, data->sg->length);
+ sg_copy_to_buffer(data->sg, 1, host->virt_base,
+ data->sg->length);
}
host->data->bytes_xfered += data->sg->length;
dma_unmap_sg(mmc_dev(host->mmc), data->sg, host->sg_len,
@@ -393,8 +393,8 @@ static void goldfish_mmc_prepare_data(struct goldfish_mmc_host *host,
* We don't really have DMA, so we need to copy to our
* platform driver buffer
*/
- const uint8_t *src = (uint8_t *)sg_virt(data->sg);
- memcpy(host->virt_base, src, data->sg->length);
+ sg_copy_from_buffer(data->sg, 1, host->virt_base,
+ data->sg->length);
}
}