Merge commit '4cb38750d49010ae72e718d46605ac9ba5a851b4' into stable/for-linus-3.6

* commit '4cb38750d49010ae72e718d46605ac9ba5a851b4': (6849 commits)
  bcma: fix invalid PMU chip control masks
  [libata] pata_cmd64x: whitespace cleanup
  libata-acpi: fix up for acpi_pm_device_sleep_state API
  sata_dwc_460ex: device tree may specify dma_channel
  ahci, trivial: fixed coding style issues related to braces
  ahci_platform: add hibernation callbacks
  libata-eh.c: local functions should not be exposed globally
  libata-transport.c: local functions should not be exposed globally
  sata_dwc_460ex: support hardreset
  ata: use module_pci_driver
  drivers/ata/pata_pcmcia.c: adjust suspicious bit operation
  pata_imx: Convert to clk_prepare_enable/clk_disable_unprepare
  ahci: Enable SB600 64bit DMA on MSI K9AGM2 (MS-7327) v2
  [libata] Prevent interface errors with Seagate FreeAgent GoFlex
  drivers/acpi/glue: revert accidental license-related 6b66d95895c bits
  libata-acpi: add missing inlines in libata.h
  i2c-omap: Add support for I2C_M_STOP message flag
  i2c: Fall back to emulated SMBus if the operation isn't supported natively
  i2c: Add SCCB support
  i2c-tiny-usb: Add support for the Robofuzz OSIF USB/I2C converter
  ...

1 files changed, 38 insertions, 1 deletions

diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index aecf88436abf..01c34b363a34 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -251,6 +251,8 @@ static inline void fl6_sock_release(struct ip6_flowlabel *fl)
 		atomic_dec(&fl->users);
 }
 
+extern void icmpv6_notify(struct sk_buff *skb, u8 type, u8 code, __be32 info);
+
 extern int 			ip6_ra_control(struct sock *sk, int sel);
 
 extern int			ipv6_parse_hopopts(struct sk_buff *skb);
@@ -298,14 +300,23 @@ static inline int ipv6_addr_cmp(const struct in6_addr *a1, const struct in6_addr
 	return memcmp(a1, a2, sizeof(struct in6_addr));
 }
 
-static inline int
+static inline bool
 ipv6_masked_addr_cmp(const struct in6_addr *a1, const struct in6_addr *m,
 		     const struct in6_addr *a2)
 {
+#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) && BITS_PER_LONG == 64
+	const unsigned long *ul1 = (const unsigned long *)a1;
+	const unsigned long *ulm = (const unsigned long *)m;
+	const unsigned long *ul2 = (const unsigned long *)a2;
+
+	return !!(((ul1[0] ^ ul2[0]) & ulm[0]) |
+		  ((ul1[1] ^ ul2[1]) & ulm[1]));
+#else
 	return !!(((a1->s6_addr32[0] ^ a2->s6_addr32[0]) & m->s6_addr32[0]) |
 		  ((a1->s6_addr32[1] ^ a2->s6_addr32[1]) & m->s6_addr32[1]) |
 		  ((a1->s6_addr32[2] ^ a2->s6_addr32[2]) & m->s6_addr32[2]) |
 		  ((a1->s6_addr32[3] ^ a2->s6_addr32[3]) & m->s6_addr32[3]));
+#endif
 }
 
 static inline void ipv6_addr_prefix(struct in6_addr *pfx, 
@@ -335,10 +346,17 @@ static inline void ipv6_addr_set(struct in6_addr *addr,
 static inline bool ipv6_addr_equal(const struct in6_addr *a1,
 				   const struct in6_addr *a2)
 {
+#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) && BITS_PER_LONG == 64
+	const unsigned long *ul1 = (const unsigned long *)a1;
+	const unsigned long *ul2 = (const unsigned long *)a2;
+
+	return ((ul1[0] ^ ul2[0]) | (ul1[1] ^ ul2[1])) == 0UL;
+#else
 	return ((a1->s6_addr32[0] ^ a2->s6_addr32[0]) |
 		(a1->s6_addr32[1] ^ a2->s6_addr32[1]) |
 		(a1->s6_addr32[2] ^ a2->s6_addr32[2]) |
 		(a1->s6_addr32[3] ^ a2->s6_addr32[3])) == 0;
+#endif
 }
 
 static inline bool __ipv6_prefix_equal(const __be32 *a1, const __be32 *a2,
@@ -391,8 +409,27 @@ bool ip6_frag_match(struct inet_frag_queue *q, void *a);
 
 static inline bool ipv6_addr_any(const struct in6_addr *a)
 {
+#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) && BITS_PER_LONG == 64
+	const unsigned long *ul = (const unsigned long *)a;
+
+	return (ul[0] | ul[1]) == 0UL;
+#else
 	return (a->s6_addr32[0] | a->s6_addr32[1] |
 		a->s6_addr32[2] | a->s6_addr32[3]) == 0;
+#endif
+}
+
+static inline u32 ipv6_addr_hash(const struct in6_addr *a)
+{
+#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) && BITS_PER_LONG == 64
+	const unsigned long *ul = (const unsigned long *)a;
+	unsigned long x = ul[0] ^ ul[1];
+
+	return (u32)(x ^ (x >> 32));
+#else
+	return (__force u32)(a->s6_addr32[0] ^ a->s6_addr32[1] ^
+			     a->s6_addr32[2] ^ a->s6_addr32[3]);
+#endif
 }
 
 static inline bool ipv6_addr_loopback(const struct in6_addr *a)