Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1446 commits)
  macvlan: fix panic if lowerdev in a bond
  tg3: Add braces around 5906 workaround.
  tg3: Fix NETIF_F_LOOPBACK error
  macvlan: remove one synchronize_rcu() call
  networking: NET_CLS_ROUTE4 depends on INET
  irda: Fix error propagation in ircomm_lmp_connect_response()
  irda: Kill set but unused variable 'bytes' in irlan_check_command_param()
  irda: Kill set but unused variable 'clen' in ircomm_connect_indication()
  rxrpc: Fix set but unused variable 'usage' in rxrpc_get_transport()
  be2net: Kill set but unused variable 'req' in lancer_fw_download()
  irda: Kill set but unused vars 'saddr' and 'daddr' in irlan_provider_connect_indication()
  atl1c: atl1c_resume() is only used when CONFIG_PM_SLEEP is defined.
  rxrpc: Fix set but unused variable 'usage' in rxrpc_get_peer().
  rxrpc: Kill set but unused variable 'local' in rxrpc_UDP_error_handler()
  rxrpc: Kill set but unused variable 'sp' in rxrpc_process_connection()
  rxrpc: Kill set but unused variable 'sp' in rxrpc_rotate_tx_window()
  pkt_sched: Kill set but unused variable 'protocol' in tc_classify()
  isdn: capi: Use pr_debug() instead of ifdefs.
  tg3: Update version to 3.119
  tg3: Apply rx_discards fix to 5719/5720
  ...

Fix up trivial conflicts in arch/x86/Kconfig and net/mac80211/agg-tx.c
as per Davem.

1 files changed, 54 insertions, 0 deletions

diff --git a/include/net/sock.h b/include/net/sock.h
index 01810a3f19df..f2046e404a61 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -52,6 +52,7 @@
 #include <linux/mm.h>
 #include <linux/security.h>
 #include <linux/slab.h>
+#include <linux/uaccess.h>
 
 #include <linux/filter.h>
 #include <linux/rculist_nulls.h>
@@ -1389,6 +1390,59 @@ static inline void sk_nocaps_add(struct sock *sk, int flags)
 	sk->sk_route_caps &= ~flags;
 }
 
+static inline int skb_do_copy_data_nocache(struct sock *sk, struct sk_buff *skb,
+					   char __user *from, char *to,
+					   int copy, int offset)
+{
+	if (skb->ip_summed == CHECKSUM_NONE) {
+		int err = 0;
+		__wsum csum = csum_and_copy_from_user(from, to, copy, 0, &err);
+		if (err)
+			return err;
+		skb->csum = csum_block_add(skb->csum, csum, offset);
+	} else if (sk->sk_route_caps & NETIF_F_NOCACHE_COPY) {
+		if (!access_ok(VERIFY_READ, from, copy) ||
+		    __copy_from_user_nocache(to, from, copy))
+			return -EFAULT;
+	} else if (copy_from_user(to, from, copy))
+		return -EFAULT;
+
+	return 0;
+}
+
+static inline int skb_add_data_nocache(struct sock *sk, struct sk_buff *skb,
+				       char __user *from, int copy)
+{
+	int err, offset = skb->len;
+
+	err = skb_do_copy_data_nocache(sk, skb, from, skb_put(skb, copy),
+				       copy, offset);
+	if (err)
+		__skb_trim(skb, offset);
+
+	return err;
+}
+
+static inline int skb_copy_to_page_nocache(struct sock *sk, char __user *from,
+					   struct sk_buff *skb,
+					   struct page *page,
+					   int off, int copy)
+{
+	int err;
+
+	err = skb_do_copy_data_nocache(sk, skb, from, page_address(page) + off,
+				       copy, skb->len);
+	if (err)
+		return err;
+
+	skb->len	     += copy;
+	skb->data_len	     += copy;
+	skb->truesize	     += copy;
+	sk->sk_wmem_queued   += copy;
+	sk_mem_charge(sk, copy);
+	return 0;
+}
+
 static inline int skb_copy_to_page(struct sock *sk, char __user *from,
 				   struct sk_buff *skb, struct page *page,
 				   int off, int copy)