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| author | Santiago Leon <santil@linux.vnet.ibm.com> | 2012-09-04 14:41:37 (GMT) |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-09-05 21:45:23 (GMT) |
| commit | d90c92fee89ccd75ef2646f3bde0b4c0450666c3 (patch) | |
| tree | 60d4c56ed7c1aaccc7743363cd7f8583afe8150b /include/linux/mlx4 | |
| parent | d013ef2aba8fe765ca683598e404203215632373 (diff) | |
| download | linux-fsl-qoriq-d90c92fee89ccd75ef2646f3bde0b4c0450666c3.tar.xz | |
ibmveth: Fix alignment of rx queue bug
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.
Cc: <stable@vger.kernel.org>
Signed-off-by: Santiago Leon <santil@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/mlx4')
0 files changed, 0 insertions, 0 deletions