netdev - [iproute2 PATCH 2/4] libnetlink: Modify parser to track the first duplicated attributes

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Message-ID: <20100130104246.26719.34306.stgit@localhost.localdomain>
Date:	Sat, 30 Jan 2010 02:42:46 -0800
From:	Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To:	davem@...emloft.net, shemminger@...tta.com
Cc:	netdev@...r.kernel.org, gospo@...hat.com,
	Mitch Williams <mitch.a.williams@...el.com>,
	Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Subject: [iproute2 PATCH 2/4] libnetlink: Modify parser to track the first
	duplicated attributes

From: Williams, Mitch A <mitch.a.williams@...el.com>

Modify the parser to keep track of the first of any duplicated attributes,
instead of the last. This is required for VF configuration reporting, where
multiple attributes of the same type are added sequentially.

Signed-off-by: Mitch Williams <mitch.a.williams@...el.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
---

 lib/libnetlink.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/lib/libnetlink.c b/lib/libnetlink.c
index 4ba6019..cfeb894 100644
--- a/lib/libnetlink.c
+++ b/lib/libnetlink.c
@@ -644,7 +644,7 @@ int parse_rtattr(struct rtattr *tb[], int max, struct rtattr *rta, int len)
 {
 	memset(tb, 0, sizeof(struct rtattr *) * (max + 1));
 	while (RTA_OK(rta, len)) {
-		if (rta->rta_type <= max)
+		if ((rta->rta_type <= max) && (!tb[rta->rta_type]))
 			tb[rta->rta_type] = rta;
 		rta = RTA_NEXT(rta,len);
 	}

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