vmxnet3: use DMA memory barriers where required

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[ Upstream commit f3002c1374 ]

The gen bits must be read first from (resp. written last to) DMA memory.
The proper way to enforce this on Linux is to call dma_rmb() (resp.
dma_wmb()).

Signed-off-by: Regis Duchesne <hpreg@vmware.com>
Acked-by: Ronak Doshi <doshir@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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hpreg@vmware.com 2018-05-14 08:14:49 -04:00 • committed by Greg Kroah-Hartman

parent 74327eda43

commit 099612827a

1 changed files with 22 additions and 0 deletions

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drivers/net/vmxnet3/vmxnet3_drv.c

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