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(parent: a27a55a) | patch
virtio_net: fix PAGE_SIZE > 64k
authorMichael S. Tsirkin <mst@redhat.com>
Mon, 23 Jan 2017 19:37:52 +0000 (21:37 +0200)
committerDavid S. Miller <davem@davemloft.net>
Tue, 24 Jan 2017 19:41:06 +0000 (14:41 -0500)
commita4240a05fdbe17952e01ce82b9e09391458260f7
tree870f97c2600cd2d47fc354d2a172f14663f422c8tree | snapshot
parenta27a55a9da22e755eee36c70e493b216299153c5commit | diff
virtio_net: fix PAGE_SIZE > 64k

I don't have any guests with PAGE_SIZE > 64k but the
code seems to be clearly broken in that case
as PAGE_SIZE / MERGEABLE_BUFFER_ALIGN will need
more than 8 bit and so the code in mergeable_ctx_to_buf_address
does not give us the actual true size.

Cc: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/virtio_net.c diff | blob | history
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