From: Lukas Bulwahn Date: Wed, 20 Jul 2022 19:02:08 +0000 (+0200) Subject: dma-mapping: update comment after dmabounce removal X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=a45e52bf1eca9bf8a7d075ce12b1e306497ce393;p=linux.git dma-mapping: update comment after dmabounce removal Commit e3217540c271 ("ARM/dma-mapping: remove dmabounce") removes the config DMABOUNCE. A comment to the function __dma_page_cpu_to_dev() refers to this removed config DMABOUNCE. Remove the obsolete explanation, but keep the recommendation not to use __dma_page_cpu_to_dev() and use dma_sync_* functions instead. Signed-off-by: Lukas Bulwahn Acked-by: Arnd Bergmann Signed-off-by: Christoph Hellwig --- diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c index e68d1d2ac4be0..16c2cdd046392 100644 --- a/arch/arm/mm/dma-mapping.c +++ b/arch/arm/mm/dma-mapping.c @@ -679,8 +679,7 @@ static void dma_cache_maint_page(struct page *page, unsigned long offset, /* * Make an area consistent for devices. - * Note: Drivers should NOT use this function directly, as it will break - * platforms with CONFIG_DMABOUNCE. + * Note: Drivers should NOT use this function directly. * Use the driver DMA support - see dma-mapping.h (dma_sync_*) */ static void __dma_page_cpu_to_dev(struct page *page, unsigned long off,