From: Adrian Hunter Date: Wed, 5 Oct 2022 10:19:43 +0000 (+0300) Subject: mmc: bcm2835: Replace kmap_atomic() with kmap_local_page() X-Git-Tag: v6.2-rc1~113^2~98 X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=07e23c14e1d341fa350a6f0659c6ac84544bb7c4;p=users%2Fdwmw2%2Flinux.git mmc: bcm2835: 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 Link: https://lore.kernel.org/r/20221005101951.3165-7-adrian.hunter@intel.com Signed-off-by: Ulf Hansson --- diff --git a/drivers/mmc/host/bcm2835.c b/drivers/mmc/host/bcm2835.c index 440773e3ba55f..8648f7e63ca1a 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);