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/bcm2835.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/mmc/host/bcm2835.c b/drivers/mmc/host/bcm2835.c
index 440773e3ba55..8648f7e63ca1 100644
--- a/drivers/mmc/host/bcm2835.c
+++ b/drivers/mmc/host/bcm2835.c
@@ -1070,7 +1070,7 @@ static void bcm2835_dma_complete_work(struct work_struct *work)
host->drain_page += host->drain_offset >> PAGE_SHIFT;
host->drain_offset &= ~PAGE_MASK;
}
- page = kmap_atomic(host->drain_page);
+ page = kmap_local_page(host->drain_page);
buf = page + host->drain_offset;
while (host->drain_words) {
@@ -1081,7 +1081,7 @@ static void bcm2835_dma_complete_work(struct work_struct *work)
host->drain_words--;
}
- kunmap_atomic(page);
+ kunmap_local(page);
}
bcm2835_finish_data(host);
--
2.25.1
