kmap_local_page() is equivalent to kmap_atomic() except that it does not
disable page faults or preemption. Where possible kmap_local_page() is
preferred to kmap_atomic() - refer kernel highmem documentation.
In this case, there is no need to disable page faults or preemption, so
replace kmap_atomic() with kmap_local_page(), and, correspondingly,
kunmap_atomic() with kunmap_local().
Signed-off-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>
---
drivers/mmc/host/sdhci.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 31d87ec7d055..fb6e9a81f198 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -697,12 +697,12 @@ static int sdhci_pre_dma_transfer(struct sdhci_host *host,
static char *sdhci_kmap_atomic(struct scatterlist *sg)
{
- return kmap_atomic(sg_page(sg)) + sg->offset;
+ return kmap_local_page(sg_page(sg)) + sg->offset;
}
static void sdhci_kunmap_atomic(void *buffer)
{
- kunmap_atomic(buffer);
+ kunmap_local(buffer);
}
void sdhci_adma_write_desc(struct sdhci_host *host, void **desc,
--
2.25.1
