mwifiex: re-fix for unaligned accesses

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[ Upstream commit 8f4e3d48bb ]

A patch from 2017 changed some accesses to DMA memory to use
get_unaligned_le32() and similar interfaces, to avoid problems
with doing unaligned accesson uncached memory.

However, the change in the mwifiex_pcie_alloc_sleep_cookie_buf()
function ended up changing the size of the access instead,
as it operates on a pointer to u8.

Change this function back to actually access the entire 32 bits.
Note that the pointer is aligned by definition because it came
from dma_alloc_coherent().

Fixes: 92c70a958b ("mwifiex: fix for unaligned reads")
Acked-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Arnd Bergmann 2021-05-08 00:07:55 +02:00 • committed by Greg Kroah-Hartman

parent 460bee9009

commit 67d88b7bf6

1 changed files with 4 additions and 6 deletions

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drivers/net/wireless/marvell/mwifiex/pcie.c

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