Chao Gao 4f8d658848 swiotlb: avoid potential left shift overflow ...

[ Upstream commit 3f0461613e ]

The second operand passed to slot_addr() is declared as int or unsigned int
in all call sites. The left-shift to get the offset of a slot can overflow
if swiotlb size is larger than 4G.

Convert the macro to an inline function and declare the second argument as
phys_addr_t to avoid the potential overflow.

Fixes: 26a7e09478 ("swiotlb: refactor swiotlb_tbl_map_single")
Signed-off-by: Chao Gao <chao.gao@intel.com>
Reviewed-by: Dongli Zhang <dongli.zhang@oracle.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2022-09-15 11:30:07 +02:00

..

coherent.c

…

contiguous.c

…

debug.c

dma-debug: make things less spammy under memory pressure

2022-06-22 14:21:55 +02:00

debug.h

…

direct.c

dma-direct: use the correct size for dma_set_encrypted()

2022-06-29 09:03:31 +02:00

direct.h

dma-direct: avoid redundant memory sync for swiotlb

2022-04-20 09:34:21 +02:00

dummy.c

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Kconfig

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Makefile

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map_benchmark.c

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mapping.c

dma-mapping: remove bogus test for pfn_valid from dma_map_resource

2022-04-27 14:38:50 +02:00

ops_helpers.c

…

pool.c

dma/pool: create dma atomic pool only if dma zone has managed pages

2022-01-27 11:03:00 +01:00

remap.c

…

swiotlb.c

swiotlb: avoid potential left shift overflow

2022-09-15 11:30:07 +02:00