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| author |   Lukas Bulwahn <lukas.bulwahn@gmail.com> | 2022-07-20 21:02:08 +0200 |
|---|---|---|
| committer |   Christoph Hellwig <hch@lst.de> | 2022-07-22 17:14:59 +0200 |
| commit | a45e52bf1eca9bf8a7d075ce12b1e306497ce393 (patch) | |
| tree | 14c846db4a0c5cb9c0ed4a900302601bf7d37bcc /arch/arm/mm/dma-mapping.c | |
| parent | scsi: sd: Add a comment about limiting max_sectors to shost optimal limit (diff) | |
| download | linux-dev-a45e52bf1eca9bf8a7d075ce12b1e306497ce393.tar.xz linux-dev-a45e52bf1eca9bf8a7d075ce12b1e306497ce393.zip | |
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 <lukas.bulwahn@gmail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'arch/arm/mm/dma-mapping.c')
| -rw-r--r-- | arch/arm/mm/dma-mapping.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c index e68d1d2ac4be..16c2cdd04639 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, |