[PATCH] net: ipv4: drop unneeded likely() call around IS_ERR()

[PATCH] net: ipv4: drop unneeded likely() call around IS_ERR()

[Enrico Weigelt, metux IT consult]

From: Enrico Weigelt <info@metux.net>

IS_ERR() already calls unlikely(), so this extra unlikely() call
around IS_ERR() is not needed.

Signed-off-by: Enrico Weigelt <info@metux.net>
---
 net/ipv4/fib_semantics.c   | 2 +-
 net/ipv4/inet_hashtables.c | 2 +-
 net/ipv4/udp.c             | 2 +-
 net/ipv4/udp_offload.c     | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index b804106..cd35bd0 100644
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -1295,7 +1295,7 @@ struct fib_info *fib_create_info(struct fib_config *cfg,
 		goto failure;
 	fi->fib_metrics = ip_fib_metrics_init(fi->fib_net, cfg->fc_mx,
 					      cfg->fc_mx_len, extack);
-	if (unlikely(IS_ERR(fi->fib_metrics))) {
+	if (IS_ERR(fi->fib_metrics)) {
 		err = PTR_ERR(fi->fib_metrics);
 		kfree(fi);
 		return ERR_PTR(err);
diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c
index c450307..9782486 100644
--- a/net/ipv4/inet_hashtables.c
+++ b/net/ipv4/inet_hashtables.c
@@ -316,7 +316,7 @@ struct sock *__inet_lookup_listener(struct net *net,
 				    saddr, sport, htonl(INADDR_ANY), hnum,
 				    dif, sdif);
 done:
-	if (unlikely(IS_ERR(result)))
+	if (IS_ERR(result))
 		return NULL;
 	return result;
 }
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 1891443..8983afe 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -478,7 +478,7 @@ struct sock *__udp4_lib_lookup(struct net *net, __be32 saddr,
 					  htonl(INADDR_ANY), hnum, dif, sdif,
 					  exact_dif, hslot2, skb);
 	}
-	if (unlikely(IS_ERR(result)))
+	if (IS_ERR(result))
 		return NULL;
 	return result;
 }
diff --git a/net/ipv4/udp_offload.c b/net/ipv4/udp_offload.c
index 06b3e2c..0112f64 100644
--- a/net/ipv4/udp_offload.c
+++ b/net/ipv4/udp_offload.c
@@ -208,7 +208,7 @@ struct sk_buff *__udp_gso_segment(struct sk_buff *gso_skb,
 		gso_skb->destructor = NULL;
 
 	segs = skb_segment(gso_skb, features);
-	if (unlikely(IS_ERR_OR_NULL(segs))) {
+	if (IS_ERR_OR_NULL(segs)) {
 		if (copy_dtor)
 			gso_skb->destructor = sock_wfree;
 		return segs;
-- 
1.9.1

Re: [PATCH] net: ipv4: drop unneeded likely() call around IS_ERR()

[David Miller]

From: "Enrico Weigelt, metux IT consult" <info@metux.net>
Date: Wed,  5 Jun 2019 23:09:05 +0200

> From: Enrico Weigelt <info@metux.net>
> 
> IS_ERR() already calls unlikely(), so this extra unlikely() call
> around IS_ERR() is not needed.
> 
> Signed-off-by: Enrico Weigelt <info@metux.net>

Applied.