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| author | Jean Delvare <jdelvare@suse.de> | 2018-05-12 11:57:37 +0200 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2018-05-12 11:57:37 +0200 |
| commit | 05e13bb57e6f181d7605f8608181c7e6fb7f591d (patch) | |
| tree | 4a8d1f2ab2e4f1393c57bb3e83467e5ef825ad8b /lib | |
| parent | 75bc37fefc4471e718ba8e651aa74673d4e0a9eb (diff) | |
| download | lwn-05e13bb57e6f181d7605f8608181c7e6fb7f591d.tar.gz lwn-05e13bb57e6f181d7605f8608181c7e6fb7f591d.zip | |
swiotlb: silent unwanted warning "buffer is full"
If DMA_ATTR_NO_WARN is passed to swiotlb_alloc_buffer(), it should be
passed further down to swiotlb_tbl_map_single(). Otherwise we escape
half of the warnings but still log the other half.
This is one of the multiple causes of spurious warnings reported at:
https://bugs.freedesktop.org/show_bug.cgi?id=104082
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Fixes: 0176adb00406 ("swiotlb: refactor coherent buffer allocation")
Cc: Christoph Hellwig <hch@lst.de>
Cc: Christian König <christian.koenig@amd.com>
Cc: Michel Dänzer <michel@daenzer.net>
Cc: Takashi Iwai <tiwai@suse.de>
Cc: stable@vger.kernel.org # v4.16
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/swiotlb.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/swiotlb.c b/lib/swiotlb.c index 12fbaa445637..cc640588f145 100644 --- a/lib/swiotlb.c +++ b/lib/swiotlb.c @@ -714,7 +714,7 @@ swiotlb_alloc_buffer(struct device *dev, size_t size, dma_addr_t *dma_handle, phys_addr = swiotlb_tbl_map_single(dev, __phys_to_dma(dev, io_tlb_start), - 0, size, DMA_FROM_DEVICE, 0); + 0, size, DMA_FROM_DEVICE, attrs); if (phys_addr == SWIOTLB_MAP_ERROR) goto out_warn; |