[patch 19/31] Fix tcindex classifier ABI borkage...

Greg KH
2007-04-11T23:03:03Z

[-- Attachment #1: fix-tcindex-classifier-abi-borkage.patch --]
[-- Type: text/plain, Size: 1107 bytes --]

-stable review patch. If anyone has any objections, please let us know.

------------------
From: Patrick McHardy <kaber@trash.net>

[NET_SCHED]: cls_tcindex: fix compatibility breakage

Userspace uses an integer for TCA_TCINDEX_SHIFT, the kernel was changed
to expect and use a u16 value in 2.6.11, which broke compatibility on
big endian machines. Change back to use int.

Reported by Ole Reinartz <ole.reinartz@gmx.de>

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
net/sched/cls_tcindex.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

--- a/net/sched/cls_tcindex.c
+++ b/net/sched/cls_tcindex.c
@@ -245,9 +245,9 @@ tcindex_set_parms(struct tcf_proto *tp,
}

if (tb[TCA_TCINDEX_SHIFT-1]) {
- if (RTA_PAYLOAD(tb[TCA_TCINDEX_SHIFT-1]) < sizeof(u16))
+ if (RTA_PAYLOAD(tb[TCA_TCINDEX_SHIFT-1]) < sizeof(int))
goto errout;
- cp.shift = *(u16 *) RTA_DATA(tb[TCA_TCINDEX_SHIFT-1]);
+ cp.shift = *(int *) RTA_DATA(tb[TCA_TCINDEX_SHIFT-1]);
}

err = -EBUSY;

--