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| author | Dexuan Cui <decui@microsoft.com> | 2022-06-22 21:14:24 +0200 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2022-06-23 15:26:59 +0200 |
| commit | 3be4562584bba603f33863a00c1c32eecf772ee6 (patch) | |
| tree | 038a4329be672c6a8051f3f8291c63105aa6658f /kernel | |
| parent | Linux 5.19-rc3 (diff) | |
| download | linux-3be4562584bba603f33863a00c1c32eecf772ee6.tar.xz linux-3be4562584bba603f33863a00c1c32eecf772ee6.zip | |
dma-direct: use the correct size for dma_set_encrypted()
The third parameter of dma_set_encrypted() is a size in bytes rather than
the number of pages.
Fixes: 4d0564785bb0 ("dma-direct: factor out dma_set_{de,en}crypted helpers")
Signed-off-by: Dexuan Cui <decui@microsoft.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/dma/direct.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/kernel/dma/direct.c b/kernel/dma/direct.c index e978f36e6be8..8d0b68a17042 100644 --- a/kernel/dma/direct.c +++ b/kernel/dma/direct.c @@ -357,7 +357,7 @@ void dma_direct_free(struct device *dev, size_t size, } else { if (IS_ENABLED(CONFIG_ARCH_HAS_DMA_CLEAR_UNCACHED)) arch_dma_clear_uncached(cpu_addr, size); - if (dma_set_encrypted(dev, cpu_addr, 1 << page_order)) + if (dma_set_encrypted(dev, cpu_addr, size)) return; } @@ -392,7 +392,6 @@ void dma_direct_free_pages(struct device *dev, size_t size, struct page *page, dma_addr_t dma_addr, enum dma_data_direction dir) { - unsigned int page_order = get_order(size); void *vaddr = page_address(page); /* If cpu_addr is not from an atomic pool, dma_free_from_pool() fails */ @@ -400,7 +399,7 @@ void dma_direct_free_pages(struct device *dev, size_t size, dma_free_from_pool(dev, vaddr, size)) return; - if (dma_set_encrypted(dev, vaddr, 1 << page_order)) + if (dma_set_encrypted(dev, vaddr, size)) return; __dma_direct_free_pages(dev, page, size); } |