7 files changed, 24 insertions, 33 deletions

diff --git a/arch/arc/kernel/kgdb.c b/arch/arc/kernel/kgdb.c
index 9a3c34af2ae8..96bca9963c63 100644
--- a/arch/arc/kernel/kgdb.c
+++ b/arch/arc/kernel/kgdb.c
@@ -192,19 +192,13 @@ void kgdb_arch_set_pc(struct pt_regs *regs, unsigned long ip)
 	instruction_pointer(regs) = ip;
 }
 
-static void kgdb_call_nmi_hook(void *ignored)
+void kgdb_call_nmi_hook(void *ignored)
 {
+	/* Default implementation passes get_irq_regs() but we don't */
 	kgdb_nmicallback(raw_smp_processor_id(), NULL);
 }
 
-void kgdb_roundup_cpus(unsigned long flags)
-{
-	local_irq_enable();
-	smp_call_function(kgdb_call_nmi_hook, NULL, 0);
-	local_irq_disable();
-}
-
-struct kgdb_arch arch_kgdb_ops = {
+const struct kgdb_arch arch_kgdb_ops = {
 	/* breakpoint instruction: TRAP_S 0x3 */
 #ifdef CONFIG_CPU_BIG_ENDIAN
 	.gdb_bpt_instr		= {0x78, 0x7e},
diff --git a/arch/arc/kernel/process.c b/arch/arc/kernel/process.c
index 8ce6e7235915..641c364fc232 100644
--- a/arch/arc/kernel/process.c
+++ b/arch/arc/kernel/process.c
@@ -61,7 +61,7 @@ SYSCALL_DEFINE3(arc_usr_cmpxchg, int *, uaddr, int, expected, int, new)
 	/* Z indicates to userspace if operation succeded */
 	regs->status32 &= ~STATUS_Z_MASK;
 
-	ret = access_ok(VERIFY_WRITE, uaddr, sizeof(*uaddr));
+	ret = access_ok(uaddr, sizeof(*uaddr));
 	if (!ret)
 		 goto fail;
 
diff --git a/arch/arc/kernel/setup.c b/arch/arc/kernel/setup.c
index b2cae79a25d7..2e018b8c2e19 100644
--- a/arch/arc/kernel/setup.c
+++ b/arch/arc/kernel/setup.c
@@ -19,6 +19,7 @@
 #include <linux/of_fdt.h>
 #include <linux/of.h>
 #include <linux/cache.h>
+#include <uapi/linux/mount.h>
 #include <asm/sections.h>
 #include <asm/arcregs.h>
 #include <asm/tlb.h>
@@ -243,7 +244,7 @@ static char *arc_cpu_mumbojumbo(int cpu_id, char *buf, int len)
 {
 	struct cpuinfo_arc *cpu = &cpuinfo_arc700[cpu_id];
 	struct bcr_identity *core = &cpu->core;
-	int i, n = 0;
+	int i, n = 0, ua = 0;
 
 	FIX_PTR(cpu);
 
@@ -263,10 +264,13 @@ static char *arc_cpu_mumbojumbo(int cpu_id, char *buf, int len)
 		       IS_AVAIL2(cpu->extn.rtc, "RTC [UP 64-bit] ", CONFIG_ARC_TIMERS_64BIT),
 		       IS_AVAIL2(cpu->extn.gfrc, "GFRC [SMP 64-bit] ", CONFIG_ARC_TIMERS_64BIT));
 
-	n += i = scnprintf(buf + n, len - n, "%s%s%s%s%s",
+#ifdef __ARC_UNALIGNED__
+	ua = 1;
+#endif
+	n += i = scnprintf(buf + n, len - n, "%s%s%s%s%s%s",
 			   IS_AVAIL2(cpu->isa.atomic, "atomic ", CONFIG_ARC_HAS_LLSC),
 			   IS_AVAIL2(cpu->isa.ldd, "ll64 ", CONFIG_ARC_HAS_LL64),
-			   IS_AVAIL1(cpu->isa.unalign, "unalign (not used)"));
+			   IS_AVAIL1(cpu->isa.unalign, "unalign "), IS_USED_RUN(ua));
 
 	if (i)
 		n += scnprintf(buf + n, len - n, "\n\t\t: ");
diff --git a/arch/arc/kernel/signal.c b/arch/arc/kernel/signal.c
index 48685445002e..1bfb7de696bd 100644
--- a/arch/arc/kernel/signal.c
+++ b/arch/arc/kernel/signal.c
@@ -169,7 +169,7 @@ SYSCALL_DEFINE0(rt_sigreturn)
 
 	sf = (struct rt_sigframe __force __user *)(regs->sp);
 
-	if (!access_ok(VERIFY_READ, sf, sizeof(*sf)))
+	if (!access_ok(sf, sizeof(*sf)))
 		goto badframe;
 
 	if (__get_user(magic, &sf->sigret_magic))
@@ -219,7 +219,7 @@ static inline void __user *get_sigframe(struct ksignal *ksig,
 	frame = (void __user *)((sp - framesize) & ~7);
 
 	/* Check that we can actually write to the signal frame */
-	if (!access_ok(VERIFY_WRITE, frame, framesize))
+	if (!access_ok(frame, framesize))
 		frame = NULL;
 
 	return frame;
diff --git a/arch/arc/kernel/traps.c b/arch/arc/kernel/traps.c
index b123558bf0bb..a7fcbc0d3943 100644
--- a/arch/arc/kernel/traps.c
+++ b/arch/arc/kernel/traps.c
@@ -42,21 +42,22 @@ void die(const char *str, struct pt_regs *regs, unsigned long address)
  *  -for kernel, chk if due to copy_(to|from)_user, otherwise die()
  */
 static noinline int
-unhandled_exception(const char *str, struct pt_regs *regs, siginfo_t *info)
+unhandled_exception(const char *str, struct pt_regs *regs,
+		    int signo, int si_code, void __user *addr)
 {
 	if (user_mode(regs)) {
 		struct task_struct *tsk = current;
 
-		tsk->thread.fault_address = (__force unsigned int)info->si_addr;
+		tsk->thread.fault_address = (__force unsigned int)addr;
 
-		force_sig_info(info->si_signo, info, tsk);
+		force_sig_fault(signo, si_code, addr, tsk);
 
 	} else {
 		/* If not due to copy_(to|from)_user, we are doomed */
 		if (fixup_exception(regs))
 			return 0;
 
-		die(str, regs, (unsigned long)info->si_addr);
+		die(str, regs, (unsigned long)addr);
 	}
 
 	return 1;
@@ -64,16 +65,9 @@ unhandled_exception(const char *str, struct pt_regs *regs, siginfo_t *info)
 
 #define DO_ERROR_INFO(signr, str, name, sicode) \
 int name(unsigned long address, struct pt_regs *regs) \
-{						\
-	siginfo_t info;				\
-						\
-	clear_siginfo(&info);			\
-	info.si_signo = signr;			\
-	info.si_errno = 0;			\
-	info.si_code  = sicode;			\
-	info.si_addr = (void __user *)address;	\
-						\
-	return unhandled_exception(str, regs, &info);\
+{								\
+	return unhandled_exception(str, regs, signr, sicode,	\
+				   (void __user *)address);	\
 }
 
 /*
diff --git a/arch/arc/kernel/unwind.c b/arch/arc/kernel/unwind.c
index 183391d4d33a..d34f69eb1a95 100644
--- a/arch/arc/kernel/unwind.c
+++ b/arch/arc/kernel/unwind.c
@@ -15,7 +15,7 @@
 
 #include <linux/sched.h>
 #include <linux/module.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/sort.h>
 #include <linux/slab.h>
 #include <linux/stop_machine.h>
@@ -181,8 +181,8 @@ static void init_unwind_hdr(struct unwind_table *table,
  */
 static void *__init unw_hdr_alloc_early(unsigned long sz)
 {
-	return __alloc_bootmem_nopanic(sz, sizeof(unsigned int),
-				       MAX_DMA_ADDRESS);
+	return memblock_alloc_from_nopanic(sz, sizeof(unsigned int),
+					   MAX_DMA_ADDRESS);
 }
 
 static void *unw_hdr_alloc(unsigned long sz)
diff --git a/arch/arc/kernel/vmlinux.lds.S b/arch/arc/kernel/vmlinux.lds.S
index f35ed578e007..8fb16bdabdcf 100644
--- a/arch/arc/kernel/vmlinux.lds.S
+++ b/arch/arc/kernel/vmlinux.lds.S
@@ -71,7 +71,6 @@ SECTIONS
 		INIT_SETUP(L1_CACHE_BYTES)
 		INIT_CALLS
 		CON_INITCALL
-		SECURITY_INITCALL
 	}
 
 	.init.arch.info : {