39 files changed, 67 insertions, 11 deletions

diff --git a/arch/alpha/include/asm/socket.h b/arch/alpha/include/asm/socket.h
index 26773e3246e2..06edfefc3373 100644
--- a/arch/alpha/include/asm/socket.h
+++ b/arch/alpha/include/asm/socket.h
@@ -67,6 +67,8 @@
 #define SO_TIMESTAMPING         37
 #define SCM_TIMESTAMPING        SO_TIMESTAMPING
 
+#define SO_RXQ_OVFL             40
+
 /* O_NONBLOCK clashes with the bits used for socket types.  Therefore we
  * have to define SOCK_NONBLOCK to a different value here.
  */
diff --git a/arch/alpha/include/asm/unistd.h b/arch/alpha/include/asm/unistd.h
index 5b5c17485942..7f23665122df 100644
--- a/arch/alpha/include/asm/unistd.h
+++ b/arch/alpha/include/asm/unistd.h
@@ -433,10 +433,11 @@
 #define __NR_signalfd                   476
 #define __NR_timerfd                    477
 #define __NR_eventfd                    478
+#define __NR_recvmmsg                   479
 
 #ifdef __KERNEL__
 
-#define NR_SYSCALLS                     479
+#define NR_SYSCALLS                     480
 
 #define __ARCH_WANT_IPC_PARSE_VERSION
 #define __ARCH_WANT_OLD_READDIR
diff --git a/arch/alpha/kernel/systbls.S b/arch/alpha/kernel/systbls.S
index 95c9aef1c106..cda6b8b3d573 100644
--- a/arch/alpha/kernel/systbls.S
+++ b/arch/alpha/kernel/systbls.S
@@ -497,6 +497,7 @@ sys_call_table:
         .quad sys_signalfd
         .quad sys_ni_syscall
         .quad sys_eventfd
+        .quad sys_recvmmsg
 
         .size sys_call_table, . - sys_call_table
         .type sys_call_table, @object
diff --git a/arch/arm/include/asm/socket.h b/arch/arm/include/asm/socket.h
index 92ac61d294fd..90ffd04b8e74 100644
--- a/arch/arm/include/asm/socket.h
+++ b/arch/arm/include/asm/socket.h
@@ -60,4 +60,6 @@
 #define SO_PROTOCOL             38
 #define SO_DOMAIN               39
 
+#define SO_RXQ_OVFL             40
+
 #endif /* _ASM_SOCKET_H */
diff --git a/arch/arm/kernel/calls.S b/arch/arm/kernel/calls.S
index fafce1b5c69f..f58c1156e779 100644
--- a/arch/arm/kernel/calls.S
+++ b/arch/arm/kernel/calls.S
@@ -374,6 +374,7 @@
                 CALL(sys_pwritev)
                 CALL(sys_rt_tgsigqueueinfo)
                 CALL(sys_perf_event_open)
+/* 365 */       CALL(sys_recvmmsg)
 #ifndef syscalls_counted
 .equ syscalls_padding, ((NR_syscalls + 3) & ~3) - NR_syscalls
 #define syscalls_counted
diff --git a/arch/avr32/include/asm/socket.h b/arch/avr32/include/asm/socket.h
index fe863f9794d5..c8d1fae49476 100644
--- a/arch/avr32/include/asm/socket.h
+++ b/arch/avr32/include/asm/socket.h
@@ -60,4 +60,6 @@
 #define SO_PROTOCOL             38
 #define SO_DOMAIN               39
 
+#define SO_RXQ_OVFL             40
+
 #endif /* __ASM_AVR32_SOCKET_H */
diff --git a/arch/avr32/kernel/syscall_table.S b/arch/avr32/kernel/syscall_table.S
index 7ee0057613b3..e76bad16b0f0 100644
--- a/arch/avr32/kernel/syscall_table.S
+++ b/arch/avr32/kernel/syscall_table.S
@@ -295,4 +295,5 @@ sys_call_table:
         .long   sys_signalfd
         .long   sys_ni_syscall          /* 280, was sys_timerfd */
         .long   sys_eventfd
+        .long   sys_recvmmsg
         .long   sys_ni_syscall          /* r8 is saturated at nr_syscalls */
diff --git a/arch/blackfin/mach-common/entry.S b/arch/blackfin/mach-common/entry.S
index 94a0375cbdcf..a50637a8b9bd 100644
--- a/arch/blackfin/mach-common/entry.S
+++ b/arch/blackfin/mach-common/entry.S
@@ -1600,6 +1600,7 @@ ENTRY(_sys_call_table)
         .long _sys_pwritev
         .long _sys_rt_tgsigqueueinfo
         .long _sys_perf_event_open
+        .long _sys_recvmmsg             /* 370 */
 
         .rept NR_syscalls-(.-_sys_call_table)/4
         .long _sys_ni_syscall
diff --git a/arch/cris/include/asm/socket.h b/arch/cris/include/asm/socket.h
index 45ec49bdb7b1..1a4a61909ca8 100644
--- a/arch/cris/include/asm/socket.h
+++ b/arch/cris/include/asm/socket.h
@@ -62,6 +62,8 @@
 #define SO_PROTOCOL             38
 #define SO_DOMAIN               39
 
+#define SO_RXQ_OVFL             40
+
 #endif /* _ASM_SOCKET_H */
 
 
diff --git a/arch/frv/include/asm/socket.h b/arch/frv/include/asm/socket.h
index 2dea726095c2..a6b26880c1ec 100644
--- a/arch/frv/include/asm/socket.h
+++ b/arch/frv/include/asm/socket.h
@@ -60,5 +60,7 @@
 #define SO_PROTOCOL             38
 #define SO_DOMAIN               39
 
+#define SO_RXQ_OVFL             40
+
 #endif /* _ASM_SOCKET_H */
 
diff --git a/arch/h8300/include/asm/socket.h b/arch/h8300/include/asm/socket.h
index 1547f01c8e22..04c0f4596eb5 100644
--- a/arch/h8300/include/asm/socket.h
+++ b/arch/h8300/include/asm/socket.h
@@ -60,4 +60,6 @@
 #define SO_PROTOCOL             38
 #define SO_DOMAIN               39
 
+#define SO_RXQ_OVFL             40
+
 #endif /* _ASM_SOCKET_H */
diff --git a/arch/ia64/include/asm/socket.h b/arch/ia64/include/asm/socket.h
index 0b0d5ff062e5..51427eaa51ba 100644
--- a/arch/ia64/include/asm/socket.h
+++ b/arch/ia64/include/asm/socket.h
@@ -69,4 +69,6 @@
 #define SO_PROTOCOL             38
 #define SO_DOMAIN               39
 
+#define SO_RXQ_OVFL             40
+
 #endif /* _ASM_IA64_SOCKET_H */
diff --git a/arch/ia64/include/asm/unistd.h b/arch/ia64/include/asm/unistd.h
index 5a5347f5c4e4..9c72e36c5281 100644
--- a/arch/ia64/include/asm/unistd.h
+++ b/arch/ia64/include/asm/unistd.h
@@ -311,11 +311,12 @@
 #define __NR_preadv                     1319
 #define __NR_pwritev                    1320
 #define __NR_rt_tgsigqueueinfo          1321
+#define __NR_rt_recvmmsg                1322
 
 #ifdef __KERNEL__
 
 
-#define NR_syscalls                     298 /* length of syscall table */
+#define NR_syscalls                     299 /* length of syscall table */
 
 /*
  * The following defines stop scripts/checksyscalls.sh from complaining about
diff --git a/arch/ia64/kernel/entry.S b/arch/ia64/kernel/entry.S
index d0e7d37017b4..d75b872ca4dc 100644
--- a/arch/ia64/kernel/entry.S
+++ b/arch/ia64/kernel/entry.S
@@ -1806,6 +1806,7 @@ sys_call_table:
         data8 sys_preadv
         data8 sys_pwritev                       // 1320
         data8 sys_rt_tgsigqueueinfo
+        data8 sys_recvmmsg
 
         .org sys_call_table + 8*NR_syscalls     // guard against failures to increase NR_syscalls
 #endif /* __IA64_ASM_PARAVIRTUALIZED_NATIVE */
diff --git a/arch/m32r/include/asm/socket.h b/arch/m32r/include/asm/socket.h
index 3390a864f224..469787c30098 100644
--- a/arch/m32r/include/asm/socket.h
+++ b/arch/m32r/include/asm/socket.h
@@ -60,4 +60,6 @@
 #define SO_PROTOCOL             38
 #define SO_DOMAIN               39
 
+#define SO_RXQ_OVFL             40
+
 #endif /* _ASM_M32R_SOCKET_H */
diff --git a/arch/m68k/include/asm/socket.h b/arch/m68k/include/asm/socket.h
index eee01cce921b..9bf49c87d954 100644
--- a/arch/m68k/include/asm/socket.h
+++ b/arch/m68k/include/asm/socket.h
@@ -60,4 +60,6 @@
 #define SO_PROTOCOL             38
 #define SO_DOMAIN               39
 
+#define SO_RXQ_OVFL             40
+
 #endif /* _ASM_SOCKET_H */
diff --git a/arch/microblaze/kernel/syscall_table.S b/arch/microblaze/kernel/syscall_table.S
index ecec19155135..c1ab1dc10898 100644
--- a/arch/microblaze/kernel/syscall_table.S
+++ b/arch/microblaze/kernel/syscall_table.S
@@ -371,3 +371,4 @@ ENTRY(sys_call_table)
         .long sys_ni_syscall
         .long sys_rt_tgsigqueueinfo     /* 365 */
         .long sys_perf_event_open
+        .long sys_recvmmsg
diff --git a/arch/mips/include/asm/socket.h b/arch/mips/include/asm/socket.h
index ae05accd9fe4..9de5190f2487 100644
--- a/arch/mips/include/asm/socket.h
+++ b/arch/mips/include/asm/socket.h
@@ -80,6 +80,8 @@ To add: #define SO_REUSEPORT 0x0200	/* Allow local address and port reuse.  */
 #define SO_TIMESTAMPING         37
 #define SCM_TIMESTAMPING        SO_TIMESTAMPING
 
+#define SO_RXQ_OVFL             40
+
 #ifdef __KERNEL__
 
 /** sock_type - Socket types
diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S
index fd2a9bb620d6..17202bbe843f 100644
--- a/arch/mips/kernel/scall32-o32.S
+++ b/arch/mips/kernel/scall32-o32.S
@@ -583,6 +583,7 @@ einval:	li	v0, -ENOSYS
         sys     sys_rt_tgsigqueueinfo   4
         sys     sys_perf_event_open     5
         sys     sys_accept4             4
+        sys     sys_recvmmsg            5
         .endm
 
         /* We pre-compute the number of _instruction_ bytes needed to
diff --git a/arch/mips/kernel/scall64-64.S b/arch/mips/kernel/scall64-64.S
index 18bf7f32c5e4..a8a6c596eb04 100644
--- a/arch/mips/kernel/scall64-64.S
+++ b/arch/mips/kernel/scall64-64.S
@@ -420,4 +420,5 @@ sys_call_table:
         PTR     sys_rt_tgsigqueueinfo
         PTR     sys_perf_event_open
         PTR     sys_accept4
+        PTR     sys_recvmmsg
         .size   sys_call_table,.-sys_call_table
diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S
index 6ebc07976694..5154e64f7cfe 100644
--- a/arch/mips/kernel/scall64-n32.S
+++ b/arch/mips/kernel/scall64-n32.S
@@ -418,4 +418,5 @@ EXPORT(sysn32_call_table)
         PTR     compat_sys_rt_tgsigqueueinfo    /* 5295 */
         PTR     sys_perf_event_open
         PTR     sys_accept4
+        PTR     compat_sys_recvmmsg
         .size   sysn32_call_table,.-sysn32_call_table
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
index 14dde4ca932e..23b842be83ea 100644
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -538,4 +538,5 @@ sys_call_table:
         PTR     compat_sys_rt_tgsigqueueinfo
         PTR     sys_perf_event_open
         PTR     sys_accept4
+        PTR     compat_sys_recvmmsg
         .size   sys_call_table,.-sys_call_table
diff --git a/arch/mn10300/include/asm/socket.h b/arch/mn10300/include/asm/socket.h
index 4df75af29d76..4e60c4281288 100644
--- a/arch/mn10300/include/asm/socket.h
+++ b/arch/mn10300/include/asm/socket.h
@@ -60,4 +60,6 @@
 #define SO_PROTOCOL             38
 #define SO_DOMAIN               39
 
+#define SO_RXQ_OVFL             40
+
 #endif /* _ASM_SOCKET_H */
diff --git a/arch/parisc/include/asm/socket.h b/arch/parisc/include/asm/socket.h
index 960b1e5d8e16..225b7d6a1a0a 100644
--- a/arch/parisc/include/asm/socket.h
+++ b/arch/parisc/include/asm/socket.h
@@ -59,6 +59,8 @@
 #define SO_TIMESTAMPING         0x4020
 #define SCM_TIMESTAMPING        SO_TIMESTAMPING
 
+#define SO_RXQ_OVFL             0x4021
+
 /* O_NONBLOCK clashes with the bits used for socket types.  Therefore we
  * have to define SOCK_NONBLOCK to a different value here.
  */
diff --git a/arch/powerpc/include/asm/socket.h b/arch/powerpc/include/asm/socket.h
index 3ab8b3e6feb0..866f7606da68 100644
--- a/arch/powerpc/include/asm/socket.h
+++ b/arch/powerpc/include/asm/socket.h
@@ -67,4 +67,6 @@
 #define SO_PROTOCOL             38
 #define SO_DOMAIN               39
 
+#define SO_RXQ_OVFL             40
+
 #endif  /* _ASM_POWERPC_SOCKET_H */
diff --git a/arch/s390/appldata/appldata_net_sum.c b/arch/s390/appldata/appldata_net_sum.c
index fa741f84c5b9..4ce7fa95880f 100644
--- a/arch/s390/appldata/appldata_net_sum.c
+++ b/arch/s390/appldata/appldata_net_sum.c
@@ -83,8 +83,9 @@ static void appldata_get_net_sum_data(void *data)
         rx_dropped = 0;
         tx_dropped = 0;
         collisions = 0;
-        read_lock(&dev_base_lock);
-        for_each_netdev(&init_net, dev) {
+
+        rcu_read_lock();
+        for_each_netdev_rcu(&init_net, dev) {
                 const struct net_device_stats *stats = dev_get_stats(dev);
 
                 rx_packets += stats->rx_packets;
@@ -98,7 +99,8 @@ static void appldata_get_net_sum_data(void *data)
                 collisions += stats->collisions;
                 i++;
         }
-        read_unlock(&dev_base_lock);
+        rcu_read_unlock();
+
         net_data->nr_interfaces = i;
         net_data->rx_packets = rx_packets;
         net_data->tx_packets = tx_packets;
diff --git a/arch/s390/include/asm/socket.h b/arch/s390/include/asm/socket.h
index e42df89a0b85..fdff1e995c73 100644
--- a/arch/s390/include/asm/socket.h
+++ b/arch/s390/include/asm/socket.h
@@ -68,4 +68,6 @@
 #define SO_PROTOCOL             38
 #define SO_DOMAIN               39
 
+#define SO_RXQ_OVFL             40
+
 #endif /* _ASM_SOCKET_H */
diff --git a/arch/sh/include/asm/sh_eth.h b/arch/sh/include/asm/sh_eth.h
index acf99700deed..f739061e2ee4 100644
--- a/arch/sh/include/asm/sh_eth.h
+++ b/arch/sh/include/asm/sh_eth.h
@@ -7,6 +7,7 @@ struct sh_eth_plat_data {
         int phy;
         int edmac_endian;
 
+        unsigned char mac_addr[6];
         unsigned no_ether_link:1;
         unsigned ether_link_active_low:1;
 };
diff --git a/arch/sh/kernel/syscalls_64.S b/arch/sh/kernel/syscalls_64.S
index 5bfde6c77498..07d2aaea9ae8 100644
--- a/arch/sh/kernel/syscalls_64.S
+++ b/arch/sh/kernel/syscalls_64.S
@@ -391,3 +391,4 @@ sys_call_table:
         .long sys_pwritev
         .long sys_rt_tgsigqueueinfo
         .long sys_perf_event_open
+        .long sys_recvmmsg              /* 365 */
diff --git a/arch/sparc/include/asm/socket.h b/arch/sparc/include/asm/socket.h
index 3a5ae3d12088..9d3fefcff2f5 100644
--- a/arch/sparc/include/asm/socket.h
+++ b/arch/sparc/include/asm/socket.h
@@ -56,6 +56,8 @@
 #define SO_TIMESTAMPING         0x0023
 #define SCM_TIMESTAMPING        SO_TIMESTAMPING
 
+#define SO_RXQ_OVFL             0x0024
+
 /* Security levels - as per NRL IPv6 - don't actually do anything */
 #define SO_SECURITY_AUTHENTICATION              0x5001
 #define SO_SECURITY_ENCRYPTION_TRANSPORT        0x5002
diff --git a/arch/sparc/include/asm/unistd.h b/arch/sparc/include/asm/unistd.h
index 42f2316c3eaa..d8d25bd97121 100644
--- a/arch/sparc/include/asm/unistd.h
+++ b/arch/sparc/include/asm/unistd.h
@@ -396,8 +396,9 @@
 #define __NR_pwritev            325
 #define __NR_rt_tgsigqueueinfo  326
 #define __NR_perf_event_open    327
+#define __NR_recvmmsg           328
 
-#define NR_SYSCALLS             328
+#define NR_SYSCALLS             329
 
 #ifdef __32bit_syscall_numbers__
 /* Sparc 32-bit only has the "setresuid32", "getresuid32" variants,
diff --git a/arch/sparc/kernel/systbls_32.S b/arch/sparc/kernel/systbls_32.S
index 0f1658d37490..ceb1530f8aa6 100644
--- a/arch/sparc/kernel/systbls_32.S
+++ b/arch/sparc/kernel/systbls_32.S
@@ -82,5 +82,5 @@ sys_call_table:
 /*310*/ .long sys_utimensat, sys_signalfd, sys_timerfd_create, sys_eventfd, sys_fallocate
 /*315*/ .long sys_timerfd_settime, sys_timerfd_gettime, sys_signalfd4, sys_eventfd2, sys_epoll_create1
 /*320*/ .long sys_dup3, sys_pipe2, sys_inotify_init1, sys_accept4, sys_preadv
-/*325*/ .long sys_pwritev, sys_rt_tgsigqueueinfo, sys_perf_event_open
+/*325*/ .long sys_pwritev, sys_rt_tgsigqueueinfo, sys_perf_event_open, sys_recvmmsg
 
diff --git a/arch/sparc/kernel/systbls_64.S b/arch/sparc/kernel/systbls_64.S
index 009825f6e73c..f37bef747e60 100644
--- a/arch/sparc/kernel/systbls_64.S
+++ b/arch/sparc/kernel/systbls_64.S
@@ -83,7 +83,7 @@ sys_call_table32:
 /*310*/ .word compat_sys_utimensat, compat_sys_signalfd, sys_timerfd_create, sys_eventfd, compat_sys_fallocate
         .word compat_sys_timerfd_settime, compat_sys_timerfd_gettime, compat_sys_signalfd4, sys_eventfd2, sys_epoll_create1
 /*320*/ .word sys_dup3, sys_pipe2, sys_inotify_init1, sys_accept4, compat_sys_preadv
-        .word compat_sys_pwritev, compat_sys_rt_tgsigqueueinfo, sys_perf_event_open
+        .word compat_sys_pwritev, compat_sys_rt_tgsigqueueinfo, sys_perf_event_open, compat_sys_recvmmsg
 
 #endif /* CONFIG_COMPAT */
 
@@ -158,4 +158,4 @@ sys_call_table:
 /*310*/ .word sys_utimensat, sys_signalfd, sys_timerfd_create, sys_eventfd, sys_fallocate
         .word sys_timerfd_settime, sys_timerfd_gettime, sys_signalfd4, sys_eventfd2, sys_epoll_create1
 /*320*/ .word sys_dup3, sys_pipe2, sys_inotify_init1, sys_accept4, sys_preadv
-        .word sys_pwritev, sys_rt_tgsigqueueinfo, sys_perf_event_open
+        .word sys_pwritev, sys_rt_tgsigqueueinfo, sys_perf_event_open, sys_recvmmsg
diff --git a/arch/x86/ia32/ia32entry.S b/arch/x86/ia32/ia32entry.S
index 581b0568fe19..d23b98782653 100644
--- a/arch/x86/ia32/ia32entry.S
+++ b/arch/x86/ia32/ia32entry.S
@@ -841,4 +841,5 @@ ia32_sys_call_table:
         .quad compat_sys_pwritev
         .quad compat_sys_rt_tgsigqueueinfo      /* 335 */
         .quad sys_perf_event_open
+        .quad compat_sys_recvmmsg
 ia32_syscall_end:
diff --git a/arch/x86/include/asm/unistd_32.h b/arch/x86/include/asm/unistd_32.h
index 6fb3c209a7e3..3baf379fa840 100644
--- a/arch/x86/include/asm/unistd_32.h
+++ b/arch/x86/include/asm/unistd_32.h
@@ -342,10 +342,11 @@
 #define __NR_pwritev            334
 #define __NR_rt_tgsigqueueinfo  335
 #define __NR_perf_event_open    336
+#define __NR_recvmmsg           337
 
 #ifdef __KERNEL__
 
-#define NR_syscalls 337
+#define NR_syscalls 338
 
 #define __ARCH_WANT_IPC_PARSE_VERSION
 #define __ARCH_WANT_OLD_READDIR
diff --git a/arch/x86/include/asm/unistd_64.h b/arch/x86/include/asm/unistd_64.h
index 8d3ad0adbc68..4843f7ba754a 100644
--- a/arch/x86/include/asm/unistd_64.h
+++ b/arch/x86/include/asm/unistd_64.h
@@ -661,6 +661,8 @@ __SYSCALL(__NR_pwritev, sys_pwritev)
 __SYSCALL(__NR_rt_tgsigqueueinfo, sys_rt_tgsigqueueinfo)
 #define __NR_perf_event_open                    298
 __SYSCALL(__NR_perf_event_open, sys_perf_event_open)
+#define __NR_recvmmsg                           299
+__SYSCALL(__NR_recvmmsg, sys_recvmmsg)
 
 #ifndef __NO_STUBS
 #define __ARCH_WANT_OLD_READDIR
diff --git a/arch/x86/kernel/syscall_table_32.S b/arch/x86/kernel/syscall_table_32.S
index 0157cd26d7cc..70c2125d55b9 100644
--- a/arch/x86/kernel/syscall_table_32.S
+++ b/arch/x86/kernel/syscall_table_32.S
@@ -336,3 +336,4 @@ ENTRY(sys_call_table)
         .long sys_pwritev
         .long sys_rt_tgsigqueueinfo     /* 335 */
         .long sys_perf_event_open
+        .long sys_recvmmsg
diff --git a/arch/xtensa/include/asm/socket.h b/arch/xtensa/include/asm/socket.h
index beb3a6bdb61d..cbdf2ffaacff 100644
--- a/arch/xtensa/include/asm/socket.h
+++ b/arch/xtensa/include/asm/socket.h
@@ -71,4 +71,6 @@
 #define SO_PROTOCOL             38
 #define SO_DOMAIN               39
 
+#define SO_RXQ_OVFL             40
+
 #endif  /* _XTENSA_SOCKET_H */
diff --git a/arch/xtensa/include/asm/unistd.h b/arch/xtensa/include/asm/unistd.h
index c092c8fbb2cf..4e55dc763021 100644
--- a/arch/xtensa/include/asm/unistd.h
+++ b/arch/xtensa/include/asm/unistd.h
@@ -681,8 +681,10 @@ __SYSCALL(304, sys_signalfd, 3)
 __SYSCALL(305, sys_ni_syscall, 0)
 #define __NR_eventfd                            306
 __SYSCALL(306, sys_eventfd, 1)
+#define __NR_recvmmsg                           307
+__SYSCALL(307, sys_recvmmsg, 5)
 
-#define __NR_syscall_count                      307
+#define __NR_syscall_count                      308
 
 /*
  * sysxtensa syscall handler