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| author | Adrian Hunter <adrian.hunter@intel.com> | 2022-10-05 12:19:49 +0200 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2022-12-07 13:22:33 +0100 |
| commit | 8e8d695fa567ab4d669cd04b8d655cb736c6ad87 (patch) | |
| tree | 809e9e5c6a8cd15672b48adbba50fc1ca83e36a1 | |
| parent | mmc: tmio_mmc_core: Remove local_irq_{save,restore}() around k[un]map_atomic() (diff) | |
| download | linux-8e8d695fa567ab4d669cd04b8d655cb736c6ad87.tar.xz linux-8e8d695fa567ab4d669cd04b8d655cb736c6ad87.zip | |
mmc: tmio_mmc_core: Replace kmap_atomic() with kmap_local_page()
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>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/20221005101951.3165-13-adrian.hunter@intel.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
| -rw-r--r-- | drivers/mmc/host/tmio_mmc.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/mmc/host/tmio_mmc.h b/drivers/mmc/host/tmio_mmc.h index 22375790b57b..e36ff80108e6 100644 --- a/drivers/mmc/host/tmio_mmc.h +++ b/drivers/mmc/host/tmio_mmc.h @@ -206,13 +206,13 @@ irqreturn_t tmio_mmc_irq(int irq, void *devid); static inline char *tmio_mmc_kmap_atomic(struct scatterlist *sg) { - return kmap_atomic(sg_page(sg)) + sg->offset; + return kmap_local_page(sg_page(sg)) + sg->offset; } static inline void tmio_mmc_kunmap_atomic(struct scatterlist *sg, void *virt) { - kunmap_atomic(virt - sg->offset); + kunmap_local(virt - sg->offset); } #ifdef CONFIG_PM |