Petr Tesarik bbb73a103f swiotlb: fix a braino in the alignment check fix ... The alignment mask in swiotlb_do_find_slots() masks off the high bits which are not relevant for the alignment, so multiple requirements are combined with a bitwise OR rather than AND. In plain English, the stricter the alignment, the more bits must be set in iotlb_align_mask. Confusion may arise from the fact that the same variable is also used to mask off the offset within a swiotlb slot, which is achieved with a bitwise AND. Fixes: 0eee5ae102 ("swiotlb: fix slot alignment checks") Reported-by: Dexuan Cui <decui@microsoft.com> Link: https://lore.kernel.org/all/CAA42JLa1y9jJ7BgQvXeUYQh-K2mDNHd2BYZ4iZUz33r5zY7oAQ@mail.gmail.com/ Reported-by: Kelsey Steele <kelseysteele@linux.microsoft.com> Link: https://lore.kernel.org/all/20230405003549.GA21326@linuxonhyperv3.guj3yctzbm1etfxqx2vob5hsef.xx.internal.cloudapp.net/ Signed-off-by: Petr Tesarik <petr.tesarik.ext@huawei.com> Tested-by: Dexuan Cui <decui@microsoft.com> Signed-off-by: Christoph Hellwig <hch@lst.de>		2023-04-06 16:45:12 +02:00
..
coherent.c	dma-mapping: Add dma_release_coherent_memory to DMA API	2022-06-24 09:30:54 -06:00
contiguous.c	cma: factor out minimum alignment requirement	2022-03-22 15:57:05 -07:00
debug.c	dma-debug: improve search for partial syncs	2022-09-07 10:38:16 +02:00
debug.h	dma-debug: teach add_dma_entry() about DMA_ATTR_SKIP_CPU_SYNC	2021-10-18 12:46:45 +02:00
direct.c	dma-mapping updates	2022-08-06 10:56:45 -07:00
direct.h	dma-direct: support PCI P2PDMA pages in dma-direct map_sg	2022-07-26 07:27:47 -04:00
dummy.c	dma-mapping: return error code from dma_dummy_map_sg()	2021-08-09 17:13:06 +02:00
Kconfig	dma-mapping: remove CONFIG_DMA_REMAP	2022-03-03 14:00:57 +03:00
Makefile	dma-mapping: remove CONFIG_DMA_REMAP	2022-03-03 14:00:57 +03:00
map_benchmark.c	dma-mapping: benchmark: extract a common header file for map_benchmark definition	2022-03-10 07:41:14 +01:00
mapping.c	dma-mapping: reject GFP_COMP for noncoherent allocations	2022-12-21 08:45:38 +01:00
ops_helpers.c	dma-mapping: handle vmalloc addresses in dma_common_{mmap,get_sgtable}	2021-07-16 11:30:26 +02:00
pool.c	dma/pool: create dma atomic pool only if dma zone has managed pages	2022-01-15 16:30:29 +02:00
remap.c	kernel/dma: remove unnecessary unmap_kernel_range	2021-04-30 11:20:40 -07:00
swiotlb.c	swiotlb: fix a braino in the alignment check fix	2023-04-06 16:45:12 +02:00