[net-next,v2,5/9] rtnetlink: move type calculation out of loop

Submitted by Christian Brauner on Sept. 4, 2018, 7:53 p.m.

Details

Message ID 20180904195355.4695-6-christian@brauner.io
State New
Series "rtnetlink: add IFA_TARGET_NETNSID for RTM_GETADDR"
Headers show

Commit Message

Christian Brauner Sept. 4, 2018, 7:53 p.m.
I don't see how the type - which is one of
RTM_{GETADDR,GETROUTE,GETNETCONF} - can change. So do the message type
calculation once before entering the for loop.

Signed-off-by: Christian Brauner <christian@brauner.io>
---
v1->v2:
- unchanged

v0->v1:
- unchanged
---
 net/core/rtnetlink.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch hide | download patch | download mbox

diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 30645d9a9801..b36dab7507a0 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -3265,13 +3265,13 @@  static int rtnl_dump_all(struct sk_buff *skb, struct netlink_callback *cb)
 {
 	int idx;
 	int s_idx = cb->family;
+	int type = cb->nlh->nlmsg_type - RTM_BASE;
 
 	if (s_idx == 0)
 		s_idx = 1;
 
 	for (idx = 1; idx <= RTNL_FAMILY_MAX; idx++) {
 		struct rtnl_link **tab;
-		int type = cb->nlh->nlmsg_type-RTM_BASE;
 		struct rtnl_link *link;
 		rtnl_dumpit_func dumpit;