From: Patrick McHardy <kaber@trash.net>
Date: Tue, 10 Apr 2007 20:38:39 +0000 (-0700)
Subject: Fix tcindex classifier ABI borkage...
X-Git-Tag: v2.6.20.7~13
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fa520f761777759cf1aebfda81ce250fc840719f;p=thirdparty%2Fkernel%2Fstable.git

Fix tcindex classifier ABI borkage...

[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>
---

diff --git a/net/sched/cls_tcindex.c b/net/sched/cls_tcindex.c
index 5af8a59e1503c..49bb50438491b 100644
--- a/net/sched/cls_tcindex.c
+++ b/net/sched/cls_tcindex.c
@@ -245,9 +245,9 @@ tcindex_set_parms(struct tcf_proto *tp, unsigned long base, u32 handle,
 	}
 
 	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;