Merge tag 'v3.7' into v4l_for_linus

Linux 3.7

* tag 'v3.7': (1545 commits)
  Linux 3.7
  Input: matrix-keymap - provide proper module license
  Revert "revert "Revert "mm: remove __GFP_NO_KSWAPD""" and associated damage
  ipv4: ip_check_defrag must not modify skb before unsharing
  Revert "mm: avoid waking kswapd for THP allocations when compaction is deferred or contended"
  inet_diag: validate port comparison byte code to prevent unsafe reads
  inet_diag: avoid unsafe and nonsensical prefix matches in inet_diag_bc_run()
  inet_diag: validate byte code to prevent oops in inet_diag_bc_run()
  inet_diag: fix oops for IPv4 AF_INET6 TCP SYN-RECV state
  mm: vmscan: fix inappropriate zone congestion clearing
  vfs: fix O_DIRECT read past end of block device
  net: gro: fix possible panic in skb_gro_receive()
  tcp: bug fix Fast Open client retransmission
  tmpfs: fix shared mempolicy leak
  mm: vmscan: do not keep kswapd looping forever due to individual uncompactable zones
  mm: compaction: validate pfn range passed to isolate_freepages_block
  mmc: sh-mmcif: avoid oops on spurious interrupts (second try)
  Revert misapplied "mmc: sh-mmcif: avoid oops on spurious interrupts"
  mmc: sdhci-s3c: fix missing clock for gpio card-detect
  lib/Makefile: Fix oid_registry build dependency
  ...

5 files changed, 30 insertions, 12 deletions

diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c
index b1fb7af3c35..cce3782c96c 100644
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -510,7 +510,6 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c, unsigned int cpu)
 				c->cputype = CPU_R3000A;
 				__cpu_name[cpu] = "R3000A";
 			}
-			break;
 		} else {
 			c->cputype = CPU_R3000;
 			__cpu_name[cpu] = "R3000";
diff --git a/arch/mips/kernel/entry.S b/arch/mips/kernel/entry.S
index a6c13321200..9b00362f32f 100644
--- a/arch/mips/kernel/entry.S
+++ b/arch/mips/kernel/entry.S
@@ -36,6 +36,11 @@ FEXPORT(ret_from_exception)
 FEXPORT(ret_from_irq)
 	LONG_S	s0, TI_REGS($28)
 FEXPORT(__ret_from_irq)
+/*
+ * We can be coming here from a syscall done in the kernel space,
+ * e.g. a failed kernel_execve().
+ */
+resume_userspace_check:
 	LONG_L	t0, PT_STATUS(sp)		# returning to kernel mode?
 	andi	t0, t0, KU_USER
 	beqz	t0, resume_kernel
@@ -162,7 +167,7 @@ work_notifysig:				# deal with pending signals and
 	move	a0, sp
 	li	a1, 0
 	jal	do_notify_resume	# a2 already loaded
-	j	resume_userspace
+	j	resume_userspace_check
 
 FEXPORT(syscall_exit_partial)
 	local_irq_disable		# make sure need_resched doesn't
diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S
index f6ba8381ee0..86ec03f0e00 100644
--- a/arch/mips/kernel/scall64-n32.S
+++ b/arch/mips/kernel/scall64-n32.S
@@ -397,14 +397,14 @@ EXPORT(sysn32_call_table)
 	PTR	sys_timerfd_create
 	PTR	compat_sys_timerfd_gettime	/* 6285 */
 	PTR	compat_sys_timerfd_settime
-	PTR	sys_signalfd4
+	PTR	compat_sys_signalfd4
 	PTR	sys_eventfd2
 	PTR	sys_epoll_create1
 	PTR	sys_dup3			/* 6290 */
 	PTR	sys_pipe2
 	PTR	sys_inotify_init1
-	PTR	sys_preadv
-	PTR	sys_pwritev
+	PTR	compat_sys_preadv
+	PTR	compat_sys_pwritev
 	PTR	compat_sys_rt_tgsigqueueinfo	/* 6295 */
 	PTR	sys_perf_event_open
 	PTR	sys_accept4
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index a53f8ec37aa..290dc6a1d7a 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -79,7 +79,7 @@ static struct resource data_resource = { .name = "Kernel data", };
 void __init add_memory_region(phys_t start, phys_t size, long type)
 {
 	int x = boot_mem_map.nr_map;
-	struct boot_mem_map_entry *prev = boot_mem_map.map + x - 1;
+	int i;
 
 	/* Sanity check */
 	if (start + size < start) {
@@ -88,15 +88,29 @@ void __init add_memory_region(phys_t start, phys_t size, long type)
 	}
 
 	/*
-	 * Try to merge with previous entry if any.  This is far less than
-	 * perfect but is sufficient for most real world cases.
+	 * Try to merge with existing entry, if any.
 	 */
-	if (x && prev->addr + prev->size == start && prev->type == type) {
-		prev->size += size;
+	for (i = 0; i < boot_mem_map.nr_map; i++) {
+		struct boot_mem_map_entry *entry = boot_mem_map.map + i;
+		unsigned long top;
+
+		if (entry->type != type)
+			continue;
+
+		if (start + size < entry->addr)
+			continue;			/* no overlap */
+
+		if (entry->addr + entry->size < start)
+			continue;			/* no overlap */
+
+		top = max(entry->addr + entry->size, start + size);
+		entry->addr = min(entry->addr, start);
+		entry->size = top - entry->addr;
+
 		return;
 	}
 
-	if (x == BOOT_MEM_MAP_MAX) {
+	if (boot_mem_map.nr_map == BOOT_MEM_MAP_MAX) {
 		pr_err("Ooops! Too many entries in the memory map!\n");
 		return;
 	}
diff --git a/arch/mips/kernel/smp-cmp.c b/arch/mips/kernel/smp-cmp.c
index afc379ca375..06cd0c610f4 100644
--- a/arch/mips/kernel/smp-cmp.c
+++ b/arch/mips/kernel/smp-cmp.c
@@ -97,7 +97,7 @@ static void cmp_init_secondary(void)
 
 	/* Enable per-cpu interrupts: platform specific */
 
-	c->core = (read_c0_ebase() >> 1) & 0xff;
+	c->core = (read_c0_ebase() >> 1) & 0x1ff;
 #if defined(CONFIG_MIPS_MT_SMP) || defined(CONFIG_MIPS_MT_SMTC)
 	c->vpe_id = (read_c0_tcbind() >> TCBIND_CURVPE_SHIFT) & TCBIND_CURVPE;
 #endif