diff options
| author | Santiago Leon <santil@linux.vnet.ibm.com> | 2012-09-04 14:41:37 +0000 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2012-09-19 15:05:15 +0100 |
| commit | 1170e5b66595a73f7e8bb0b62e433669939c0eea (patch) | |
| tree | 89ce8ebc7b91a31a659497b55dd70375c39a336e /scripts/patch-kernel | |
| parent | da75c41ed3cf1fc577b24dc87559bd32e27ebc8b (diff) | |
ibmveth: Fix alignment of rx queue bug
commit d90c92fee89ccd75ef2646f3bde0b4c0450666c3 upstream.
This patch fixes a bug found by Nish Aravamudan
(https://lkml.org/lkml/2012/5/15/220) where the driver is not following
the spec (it is not aligning the rx buffer on a 16-byte boundary) and the
hypervisor aborts the registration, making the device unusable.
The fix follows BenH's recommendation (https://lkml.org/lkml/2012/7/20/461)
to replace the kmalloc+map for a single call to dma_alloc_coherent()
because that function always aligns to a 16-byte boundary.
The stable trees will run into this bug whenever the rx buffer kmalloc call
returns something not aligned on a 16-byte boundary.
Signed-off-by: Santiago Leon <santil@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'scripts/patch-kernel')
0 files changed, 0 insertions, 0 deletions