| Message ID | 20221005101951.3165-4-adrian.hunter@intel.com |
|---|---|
| State | New |
| Headers | show |
| Series | [01/14] mmc: sdhci: Remove local_irq_{save,restore}() around k[un]map_atomic() | expand |
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,
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@intel.com> --- drivers/mmc/host/sdhci.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)