5 files changed, 12 insertions, 20 deletions

diff --git a/drivers/net/forcedeth.c b/drivers/net/forcedeth.c
index 5b910cf63740..b8251e827059 100644
--- a/drivers/net/forcedeth.c
+++ b/drivers/net/forcedeth.c
@@ -6011,9 +6011,20 @@ static void nv_shutdown(struct pci_dev *pdev)
         if (netif_running(dev))
                 nv_close(dev);
 
-        nv_restore_mac_addr(pdev);
+        /*
+         * Restore the MAC so a kernel started by kexec won't get confused.
+         * If we really go for poweroff, we must not restore the MAC,
+         * otherwise the MAC for WOL will be reversed at least on some boards.
+         */
+        if (system_state != SYSTEM_POWER_OFF) {
+                nv_restore_mac_addr(pdev);
+        }
 
         pci_disable_device(pdev);
+        /*
+         * Apparently it is not possible to reinitialise from D3 hot,
+         * only put the device into D3 if we really go for poweroff.
+         */
         if (system_state == SYSTEM_POWER_OFF) {
                 if (pci_enable_wake(pdev, PCI_D3cold, np->wolenabled))
                         pci_enable_wake(pdev, PCI_D3hot, np->wolenabled);
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index cf2cb50f77d1..9dcf956ad18a 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -416,15 +416,6 @@ extern void	      skb_over_panic(struct sk_buff *skb, int len,
                                      void *here);
 extern void           skb_under_panic(struct sk_buff *skb, int len,
                                       void *here);
-extern void           skb_truesize_bug(struct sk_buff *skb);
-
-static inline void skb_truesize_check(struct sk_buff *skb)
-{
-        int len = sizeof(struct sk_buff) + skb->len;
-
-        if (unlikely((int)skb->truesize < len))
-                skb_truesize_bug(skb);
-}
 
 extern int skb_append_datato_frags(struct sock *sk, struct sk_buff *skb,
                         int getfrag(void *from, char *to, int offset,
diff --git a/include/net/sock.h b/include/net/sock.h
index ce3b5b622683..eefeeaf7fc46 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -860,7 +860,6 @@ static inline void sk_mem_uncharge(struct sock *sk, int size)
 
 static inline void sk_wmem_free_skb(struct sock *sk, struct sk_buff *skb)
 {
-        skb_truesize_check(skb);
         sock_set_flag(sk, SOCK_QUEUE_SHRUNK);
         sk->sk_wmem_queued -= skb->truesize;
         sk_mem_uncharge(sk, skb->truesize);
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index da74b844f4ea..c6a6b166f8d6 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -143,14 +143,6 @@ void skb_under_panic(struct sk_buff *skb, int sz, void *here)
         BUG();
 }
 
-void skb_truesize_bug(struct sk_buff *skb)
-{
-        WARN(net_ratelimit(), KERN_ERR "SKB BUG: Invalid truesize (%u) "
-               "len=%u, sizeof(sk_buff)=%Zd\n",
-               skb->truesize, skb->len, sizeof(struct sk_buff));
-}
-EXPORT_SYMBOL(skb_truesize_bug);
-
 /*      Allocate a new skbuff. We do this ourselves so we can fill in a few
  *      'private' fields and also do memory statistics to find all the
  *      [BEEP] leaks.
diff --git a/net/core/sock.c b/net/core/sock.c
index 6f2e1337975d..6e4f14d1ef81 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -1137,7 +1137,6 @@ void sock_rfree(struct sk_buff *skb)
 {
         struct sock *sk = skb->sk;
 
-        skb_truesize_check(skb);
         atomic_sub(skb->truesize, &sk->sk_rmem_alloc);
         sk_mem_uncharge(skb->sk, skb->truesize);
 }