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(parent: 2807acf) | patch
libata: fix using DMA buffers on stack
authorraymond pang <raymondpangxd@gmail.com>
Thu, 28 Mar 2019 12:19:25 +0000 (12:19 +0000)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 4 May 2019 06:49:09 +0000 (08:49 +0200)
commitc919272598291545c9d6eed5fc6b628e0c4deaf0
tree30a721be27efb0126587951c36269d9f1fdc272ftree | snapshot
parent2807acfea7e6991ec560c34719884e8b43c01843commit | diff
libata: fix using DMA buffers on stack

[ Upstream commit dd08a8d9a66de4b54575c294a92630299f7e0fe7 ]

When CONFIG_VMAP_STACK=y, __pa() returns incorrect physical address for
a stack virtual address. Stack DMA buffers must be avoided.

Signed-off-by: raymond pang <raymondpangxd@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin (Microsoft) <sashal@kernel.org>
drivers/ata/libata-zpodd.c diff | blob | history
Domain: System / Kernel;