7 files changed, 42 insertions, 25 deletions

diff --git a/include/linux/i2c-dev.h b/include/linux/i2c-dev.h
index 311315b..fd53bfd 100644
--- a/include/linux/i2c-dev.h
+++ b/include/linux/i2c-dev.h
@@ -33,7 +33,7 @@
  */
 #define I2C_RETRIES	0x0701	/* number of times a device address should
 				   be polled when not acknowledging */
-#define I2C_TIMEOUT	0x0702	/* set timeout in jiffies - call with int */
+#define I2C_TIMEOUT	0x0702	/* set timeout in units of 10 ms */
 
 /* NOTE: Slave address is 7 or 10 bits, but 10-bit addresses
  * are NOT supported! (due to code brokenness)
diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index fcfbfea..c86c3b0 100644
--- a/include/linux/i2c.h
+++ b/include/linux/i2c.h
@@ -361,7 +361,7 @@ struct i2c_adapter {
 	struct mutex bus_lock;
 	struct mutex clist_lock;
 
-	int timeout;
+	int timeout;			/* in jiffies */
 	int retries;
 	struct device dev;		/* the adapter device */
 
diff --git a/include/linux/if_vlan.h b/include/linux/if_vlan.h
index f8ff918..e1ff5b1 100644
--- a/include/linux/if_vlan.h
+++ b/include/linux/if_vlan.h
@@ -210,6 +210,7 @@ static inline struct sk_buff *__vlan_put_tag(struct sk_buff *skb, u16 vlan_tci)
 
 	/* Move the mac addresses to the beginning of the new header. */
 	memmove(skb->data, skb->data + VLAN_HLEN, 2 * VLAN_ETH_ALEN);
+	skb->mac_header -= VLAN_HLEN;
 
 	/* first, the ethernet type */
 	veth->h_vlan_proto = htons(ETH_P_8021Q);
diff --git a/include/linux/io-mapping.h b/include/linux/io-mapping.h
index 82df317..f1ed66c 100644
--- a/include/linux/io-mapping.h
+++ b/include/linux/io-mapping.h
@@ -30,11 +30,14 @@
  * See Documentation/io_mapping.txt
  */
 
-/* this struct isn't actually defined anywhere */
-struct io_mapping;
-
 #ifdef CONFIG_HAVE_ATOMIC_IOMAP
 
+struct io_mapping {
+	resource_size_t base;
+	unsigned long size;
+	pgprot_t prot;
+};
+
 /*
  * For small address space machines, mapping large objects
  * into the kernel virtual space isn't practical. Where
@@ -43,23 +46,42 @@ struct io_mapping;
  */
 
 static inline struct io_mapping *
-io_mapping_create_wc(unsigned long base, unsigned long size)
+io_mapping_create_wc(resource_size_t base, unsigned long size)
 {
-	return (struct io_mapping *) base;
+	struct io_mapping *iomap;
+	pgprot_t prot;
+
+	if (!reserve_io_memtype_wc(base, size, &prot))
+		return NULL;
+
+	iomap = kmalloc(sizeof(*iomap), GFP_KERNEL);
+	if (!iomap)
+		return NULL;
+
+	iomap->base = base;
+	iomap->size = size;
+	iomap->prot = prot;
+	return iomap;
 }
 
 static inline void
 io_mapping_free(struct io_mapping *mapping)
 {
+	free_io_memtype(mapping->base, mapping->size);
+	kfree(mapping);
 }
 
 /* Atomic map/unmap */
 static inline void *
 io_mapping_map_atomic_wc(struct io_mapping *mapping, unsigned long offset)
 {
-	offset += (unsigned long) mapping;
-	return iomap_atomic_prot_pfn(offset >> PAGE_SHIFT, KM_USER0,
-				     __pgprot(__PAGE_KERNEL_WC));
+	resource_size_t phys_addr;
+	unsigned long pfn;
+
+	BUG_ON(offset >= mapping->size);
+	phys_addr = mapping->base + offset;
+	pfn = (unsigned long) (phys_addr >> PAGE_SHIFT);
+	return iomap_atomic_prot_pfn(pfn, KM_USER0, mapping->prot);
 }
 
 static inline void
@@ -71,8 +93,9 @@ io_mapping_unmap_atomic(void *vaddr)
 static inline void *
 io_mapping_map_wc(struct io_mapping *mapping, unsigned long offset)
 {
-	offset += (unsigned long) mapping;
-	return ioremap_wc(offset, PAGE_SIZE);
+	BUG_ON(offset >= mapping->size);
+	resource_size_t phys_addr = mapping->base + offset;
+	return ioremap_wc(phys_addr, PAGE_SIZE);
 }
 
 static inline void
@@ -83,9 +106,12 @@ io_mapping_unmap(void *vaddr)
 
 #else
 
+/* this struct isn't actually defined anywhere */
+struct io_mapping;
+
 /* Create the io_mapping object*/
 static inline struct io_mapping *
-io_mapping_create_wc(unsigned long base, unsigned long size)
+io_mapping_create_wc(resource_size_t base, unsigned long size)
 {
 	return (struct io_mapping *) ioremap_wc(base, size);
 }
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index cf2cb50..9dcf956 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/linux/uaccess.h b/include/linux/uaccess.h
index 6b58367..6f3c603 100644
--- a/include/linux/uaccess.h
+++ b/include/linux/uaccess.h
@@ -41,13 +41,13 @@ static inline void pagefault_enable(void)
 #ifndef ARCH_HAS_NOCACHE_UACCESS
 
 static inline unsigned long __copy_from_user_inatomic_nocache(void *to,
-				const void __user *from, unsigned long n)
+		const void __user *from, unsigned long n, unsigned long total)
 {
 	return __copy_from_user_inatomic(to, from, n);
 }
 
 static inline unsigned long __copy_from_user_nocache(void *to,
-				const void __user *from, unsigned long n)
+		const void __user *from, unsigned long n, unsigned long total)
 {
 	return __copy_from_user(to, from, n);
 }
diff --git a/include/net/sock.h b/include/net/sock.h
index ce3b5b6..eefeeaf 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);