From: Stephen Hemminger <shemminger@osdl.org>
Date: Wed, 20 Apr 2005 05:39:42 +0000 (-0700)
Subject: [NET]: skbuff: remove old NET_CALLER macro
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=9c2b3328f74800bb370d08bb3a4255d5fe833e94;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git

[NET]: skbuff: remove old NET_CALLER macro

Here is a revised alternative that uses BUG_ON/WARN_ON
(as suggested by Herbert Xu) to eliminate NET_CALLER.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 9f2d75e4f08..22b70181961 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -83,12 +83,6 @@
  *	Any questions? No questions, good. 		--ANK
  */
 
-#ifdef __i386__
-#define NET_CALLER(arg) (*(((void **)&arg) - 1))
-#else
-#define NET_CALLER(arg) __builtin_return_address(0)
-#endif
-
 struct net_device;
 
 #ifdef CONFIG_NETFILTER
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index c96559574a3..1b64817d7de 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -276,20 +276,14 @@ void kfree_skbmem(struct sk_buff *skb)
 
 void __kfree_skb(struct sk_buff *skb)
 {
-	if (skb->list) {
-	 	printk(KERN_WARNING "Warning: kfree_skb passed an skb still "
-		       "on a list (from %p).\n", NET_CALLER(skb));
-		BUG();
-	}
+	BUG_ON(skb->list != NULL);
 
 	dst_release(skb->dst);
 #ifdef CONFIG_XFRM
 	secpath_put(skb->sp);
 #endif
-	if(skb->destructor) {
-		if (in_irq())
-			printk(KERN_WARNING "Warning: kfree_skb on "
-					    "hard IRQ %p\n", NET_CALLER(skb));
+	if (skb->destructor) {
+		WARN_ON(in_irq());
 		skb->destructor(skb);
 	}
 #ifdef CONFIG_NETFILTER
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 9f91a116d91..bb90a0c3a91 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -1048,7 +1048,8 @@ void __ip_select_ident(struct iphdr *iph, struct dst_entry *dst, int more)
 			return;
 		}
 	} else
-		printk(KERN_DEBUG "rt_bind_peer(0) @%p\n", NET_CALLER(iph));
+		printk(KERN_DEBUG "rt_bind_peer(0) @%p\n", 
+		       __builtin_return_address(0));
 
 	ip_select_fb_ident(iph);
 }