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

From: Christian Brauner
Date: Tue Sep 04 2018 - 15:54:59 EST


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@xxxxxxxxxx>
---
v1->v2:
- unchanged

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

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;

--
2.17.1