diff options
| author | Leon Romanovsky <leonro@nvidia.com> | 2026-03-16 21:06:47 +0200 |
|---|---|---|
| committer | Marek Szyprowski <m.szyprowski@samsung.com> | 2026-03-20 11:33:24 +0100 |
| commit | 9bb0a4d6a4433b75274204b083dac8e515d2007d (patch) | |
| tree | c25f33d517752a25113bcea0d1dc3ca8f8c0a238 /kernel | |
| parent | 6f45b1604cf43945ef472ae4ef30354025307c19 (diff) | |
dma-mapping: Clarify valid conditions for CPU cache line overlap
Rename the DMA_ATTR_CPU_CACHE_CLEAN attribute to better reflect that it
is debugging aid to inform DMA core code that CPU cache line overlaps are
allowed, and refine the documentation describing its use.
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Link: https://lore.kernel.org/r/20260316-dma-debug-overlap-v3-3-1dde90a7f08b@nvidia.com
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/dma/debug.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/dma/debug.c b/kernel/dma/debug.c index be207be74996..83e1cfe05f08 100644 --- a/kernel/dma/debug.c +++ b/kernel/dma/debug.c @@ -601,7 +601,7 @@ static void add_dma_entry(struct dma_debug_entry *entry, unsigned long attrs) unsigned long flags; int rc; - entry->is_cache_clean = !!(attrs & DMA_ATTR_CPU_CACHE_CLEAN); + entry->is_cache_clean = attrs & DMA_ATTR_DEBUGGING_IGNORE_CACHELINES; bucket = get_hash_bucket(entry, &flags); hash_bucket_add(bucket, entry); |