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| author | Dwight Engen <dwight.engen@oracle.com> | 2014-09-19 09:42:53 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-11-21 09:22:52 -0800 |
| commit | 5cf61378accedc6acd5923f3b00bc945be1a9d29 (patch) | |
| tree | 92dd3dc69f25abd74ee7a1af35898a3fa758493c /arch/sparc | |
| parent | 9e23c21149bfdc57aa9d9a35821994dfb0253c40 (diff) | |
sunvdc: limit each sg segment to a page
[ Upstream commit 5eed69ffd248c9f68f56c710caf07db134aef28b ]
ldc_map_sg() could fail its check that the number of pages referred to
by the sg scatterlist was <= the number of cookies.
This fixes the issue by doing a similar thing to the xen-blkfront driver,
ensuring that the scatterlist will only ever contain a segment count <=
port->ring_cookies, and each segment will be page aligned, and <= page
size. This ensures that the scatterlist is always mappable.
Orabug: 19347817
OraBZ: 15945
Signed-off-by: Dwight Engen <dwight.engen@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/sparc')
0 files changed, 0 insertions, 0 deletions