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| author | Li RongQing <lirongqing@baidu.com> | 2026-06-03 09:37:23 +0800 |
|---|---|---|
| committer | Marek Szyprowski <m.szyprowski@samsung.com> | 2026-06-03 08:52:40 +0200 |
| commit | 560000d619ef162568746ce287f0c725e24ea967 (patch) | |
| tree | 1f60e378c343d3da4d3304547cbb3aea0b15d634 /arch/nds32/kernel/git@git.tavy.me:linux.git | |
| parent | af0c3f05866237f7592219bfe05387bc3bfc99b5 (diff) | |
dma-mapping: direct: fix missing mapping for THRU_HOST_BRIDGE segments
In dma_direct_map_sg(), the case PCI_P2PDMA_MAP_THRU_HOST_BRIDGE
incorrectly used 'break' instead of falling through to MAP_NONE.
As a result, segments traversing the host bridge skipped the required
dma_direct_map_phys() call entirely, leaving sg->dma_address
uninitialized and leading to DMA failures. Fix this by using
'fallthrough;'.
Fixes: a25e7962db0d79 ("PCI/P2PDMA: Refactor the p2pdma mapping helpers")
Reviewed-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Li RongQing <lirongqing@baidu.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Link: https://lore.kernel.org/r/20260603013723.2439-1-lirongqing@baidu.com
Diffstat (limited to 'arch/nds32/kernel/git@git.tavy.me:linux.git')
0 files changed, 0 insertions, 0 deletions