Merge Linus' tree to be be to apply submitted patches to newer code than

current trivial.git base

6 files changed, 83 insertions, 136 deletions

diff --git a/arch/m32r/include/asm/Kbuild b/arch/m32r/include/asm/Kbuild
index 67779a74b62d..3796801d6e0c 100644
--- a/arch/m32r/include/asm/Kbuild
+++ b/arch/m32r/include/asm/Kbuild
@@ -3,7 +3,10 @@ generic-y += clkdev.h
 generic-y += cputime.h
 generic-y += exec.h
 generic-y += hash.h
+generic-y += irq_work.h
 generic-y += mcs_spinlock.h
 generic-y += module.h
 generic-y += preempt.h
+generic-y += scatterlist.h
+generic-y += sections.h
 generic-y += trace_clock.h
diff --git a/arch/m32r/include/asm/atomic.h b/arch/m32r/include/asm/atomic.h
index 8ad0ed4182a5..31bb74adba08 100644
--- a/arch/m32r/include/asm/atomic.h
+++ b/arch/m32r/include/asm/atomic.h
@@ -28,7 +28,7 @@
  *
  * Atomically reads the value of @v.
  */
-#define atomic_read(v)	(*(volatile int *)&(v)->counter)
+#define atomic_read(v)	ACCESS_ONCE((v)->counter)
 
 /**
  * atomic_set - set atomic variable
@@ -39,85 +39,64 @@
  */
 #define atomic_set(v,i)	(((v)->counter) = (i))
 
-/**
- * atomic_add_return - add integer to atomic variable and return it
- * @i: integer value to add
- * @v: pointer of type atomic_t
- *
- * Atomically adds @i to @v and return (@i + @v).
- */
-static __inline__ int atomic_add_return(int i, atomic_t *v)
-{
-	unsigned long flags;
-	int result;
-
-	local_irq_save(flags);
-	__asm__ __volatile__ (
-		"# atomic_add_return		\n\t"
-		DCACHE_CLEAR("%0", "r4", "%1")
-		M32R_LOCK" %0, @%1;		\n\t"
-		"add	%0, %2;			\n\t"
-		M32R_UNLOCK" %0, @%1;		\n\t"
-		: "=&r" (result)
-		: "r" (&v->counter), "r" (i)
-		: "memory"
 #ifdef CONFIG_CHIP_M32700_TS1
-		, "r4"
-#endif	/* CONFIG_CHIP_M32700_TS1 */
-	);
-	local_irq_restore(flags);
-
-	return result;
+#define __ATOMIC_CLOBBER	, "r4"
+#else
+#define __ATOMIC_CLOBBER
+#endif
+
+#define ATOMIC_OP(op)							\
+static __inline__ void atomic_##op(int i, atomic_t *v)			\
+{									\
+	unsigned long flags;						\
+	int result;							\
+									\
+	local_irq_save(flags);						\
+	__asm__ __volatile__ (						\
+		"# atomic_" #op "		\n\t"			\
+		DCACHE_CLEAR("%0", "r4", "%1")				\
+		M32R_LOCK" %0, @%1;		\n\t"			\
+		#op " %0, %2;			\n\t"			\
+		M32R_UNLOCK" %0, @%1;		\n\t"			\
+		: "=&r" (result)					\
+		: "r" (&v->counter), "r" (i)				\
+		: "memory"						\
+		__ATOMIC_CLOBBER					\
+	);								\
+	local_irq_restore(flags);					\
+}									\
+
+#define ATOMIC_OP_RETURN(op)						\
+static __inline__ int atomic_##op##_return(int i, atomic_t *v)		\
+{									\
+	unsigned long flags;						\
+	int result;							\
+									\
+	local_irq_save(flags);						\
+	__asm__ __volatile__ (						\
+		"# atomic_" #op "_return	\n\t"			\
+		DCACHE_CLEAR("%0", "r4", "%1")				\
+		M32R_LOCK" %0, @%1;		\n\t"			\
+		#op " %0, %2;			\n\t"			\
+		M32R_UNLOCK" %0, @%1;		\n\t"			\
+		: "=&r" (result)					\
+		: "r" (&v->counter), "r" (i)				\
+		: "memory"						\
+		__ATOMIC_CLOBBER					\
+	);								\
+	local_irq_restore(flags);					\
+									\
+	return result;							\
 }
 
-/**
- * atomic_sub_return - subtract integer from atomic variable and return it
- * @i: integer value to subtract
- * @v: pointer of type atomic_t
- *
- * Atomically subtracts @i from @v and return (@v - @i).
- */
-static __inline__ int atomic_sub_return(int i, atomic_t *v)
-{
-	unsigned long flags;
-	int result;
-
-	local_irq_save(flags);
-	__asm__ __volatile__ (
-		"# atomic_sub_return		\n\t"
-		DCACHE_CLEAR("%0", "r4", "%1")
-		M32R_LOCK" %0, @%1;		\n\t"
-		"sub	%0, %2;			\n\t"
-		M32R_UNLOCK" %0, @%1;		\n\t"
-		: "=&r" (result)
-		: "r" (&v->counter), "r" (i)
-		: "memory"
-#ifdef CONFIG_CHIP_M32700_TS1
-		, "r4"
-#endif	/* CONFIG_CHIP_M32700_TS1 */
-	);
-	local_irq_restore(flags);
-
-	return result;
-}
+#define ATOMIC_OPS(op) ATOMIC_OP(op) ATOMIC_OP_RETURN(op)
 
-/**
- * atomic_add - add integer to atomic variable
- * @i: integer value to add
- * @v: pointer of type atomic_t
- *
- * Atomically adds @i to @v.
- */
-#define atomic_add(i,v) ((void) atomic_add_return((i), (v)))
+ATOMIC_OPS(add)
+ATOMIC_OPS(sub)
 
-/**
- * atomic_sub - subtract the atomic variable
- * @i: integer value to subtract
- * @v: pointer of type atomic_t
- *
- * Atomically subtracts @i from @v.
- */
-#define atomic_sub(i,v) ((void) atomic_sub_return((i), (v)))
+#undef ATOMIC_OPS
+#undef ATOMIC_OP_RETURN
+#undef ATOMIC_OP
 
 /**
  * atomic_sub_and_test - subtract value from variable and test result
@@ -151,9 +130,7 @@ static __inline__ int atomic_inc_return(atomic_t *v)
 		: "=&r" (result)
 		: "r" (&v->counter)
 		: "memory"
-#ifdef CONFIG_CHIP_M32700_TS1
-		, "r4"
-#endif	/* CONFIG_CHIP_M32700_TS1 */
+		__ATOMIC_CLOBBER
 	);
 	local_irq_restore(flags);
 
@@ -181,9 +158,7 @@ static __inline__ int atomic_dec_return(atomic_t *v)
 		: "=&r" (result)
 		: "r" (&v->counter)
 		: "memory"
-#ifdef CONFIG_CHIP_M32700_TS1
-		, "r4"
-#endif	/* CONFIG_CHIP_M32700_TS1 */
+		__ATOMIC_CLOBBER
 	);
 	local_irq_restore(flags);
 
@@ -280,9 +255,7 @@ static __inline__ void atomic_clear_mask(unsigned long  mask, atomic_t *addr)
 		: "=&r" (tmp)
 		: "r" (addr), "r" (~mask)
 		: "memory"
-#ifdef CONFIG_CHIP_M32700_TS1
-		, "r5"
-#endif	/* CONFIG_CHIP_M32700_TS1 */
+		__ATOMIC_CLOBBER
 	);
 	local_irq_restore(flags);
 }
@@ -302,9 +275,7 @@ static __inline__ void atomic_set_mask(unsigned long  mask, atomic_t *addr)
 		: "=&r" (tmp)
 		: "r" (addr), "r" (mask)
 		: "memory"
-#ifdef CONFIG_CHIP_M32700_TS1
-		, "r5"
-#endif	/* CONFIG_CHIP_M32700_TS1 */
+		__ATOMIC_CLOBBER
 	);
 	local_irq_restore(flags);
 }
diff --git a/arch/m32r/include/asm/scatterlist.h b/arch/m32r/include/asm/scatterlist.h
deleted file mode 100644
index 7370b8b6243e..000000000000
--- a/arch/m32r/include/asm/scatterlist.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef _ASM_M32R_SCATTERLIST_H
-#define _ASM_M32R_SCATTERLIST_H
-
-#include <asm-generic/scatterlist.h>
-
-#endif /* _ASM_M32R_SCATTERLIST_H */
diff --git a/arch/m32r/include/asm/sections.h b/arch/m32r/include/asm/sections.h
deleted file mode 100644
index 5e5d21c4908a..000000000000
--- a/arch/m32r/include/asm/sections.h
+++ /dev/null
@@ -1,7 +0,0 @@
-#ifndef _M32R_SECTIONS_H
-#define _M32R_SECTIONS_H
-
-/* nothing to see, move along */
-#include <asm-generic/sections.h>
-
-#endif	/* _M32R_SECTIONS_H */
diff --git a/arch/m32r/kernel/signal.c b/arch/m32r/kernel/signal.c
index d503568cb753..95408b8f130a 100644
--- a/arch/m32r/kernel/signal.c
+++ b/arch/m32r/kernel/signal.c
@@ -162,28 +162,22 @@ setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs,
  * Determine which stack to use..
  */
 static inline void __user *
-get_sigframe(struct k_sigaction *ka, unsigned long sp, size_t frame_size)
+get_sigframe(struct ksignal *ksig, unsigned long sp, size_t frame_size)
 {
-	/* This is the X/Open sanctioned signal stack switching.  */
-	if (ka->sa.sa_flags & SA_ONSTACK) {
-		if (sas_ss_flags(sp) == 0)
-			sp = current->sas_ss_sp + current->sas_ss_size;
-	}
-
-	return (void __user *)((sp - frame_size) & -8ul);
+	return (void __user *)((sigsp(sp, ksig) - frame_size) & -8ul);
 }
 
-static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
-			   sigset_t *set, struct pt_regs *regs)
+static int setup_rt_frame(struct ksignal *ksig, sigset_t *set,
+			  struct pt_regs *regs)
 {
 	struct rt_sigframe __user *frame;
 	int err = 0;
-	int signal;
+	int signal, sig = ksig->sig;
 
-	frame = get_sigframe(ka, regs->spu, sizeof(*frame));
+	frame = get_sigframe(ksig, regs->spu, sizeof(*frame));
 
 	if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
-		goto give_sigsegv;
+		return -EFAULT;
 
 	signal = current_thread_info()->exec_domain
 		&& current_thread_info()->exec_domain->signal_invmap
@@ -193,13 +187,13 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 
 	err |= __put_user(signal, &frame->sig);
 	if (err)
-		goto give_sigsegv;
+		return -EFAULT;
 
 	err |= __put_user(&frame->info, &frame->pinfo);
 	err |= __put_user(&frame->uc, &frame->puc);
-	err |= copy_siginfo_to_user(&frame->info, info);
+	err |= copy_siginfo_to_user(&frame->info, &ksig->info);
 	if (err)
-		goto give_sigsegv;
+		return -EFAULT;
 
 	/* Create the ucontext.  */
 	err |= __put_user(0, &frame->uc.uc_flags);
@@ -208,17 +202,17 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 	err |= setup_sigcontext(&frame->uc.uc_mcontext, regs, set->sig[0]);
 	err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
 	if (err)
-		goto give_sigsegv;
+		return -EFAULT;
 
 	/* Set up to return from userspace.  */
-	regs->lr = (unsigned long)ka->sa.sa_restorer;
+	regs->lr = (unsigned long)ksig->ka.sa.sa_restorer;
 
 	/* Set up registers for signal handler */
 	regs->spu = (unsigned long)frame;
 	regs->r0 = signal;	/* Arg for signal handler */
 	regs->r1 = (unsigned long)&frame->info;
 	regs->r2 = (unsigned long)&frame->uc;
-	regs->bpc = (unsigned long)ka->sa.sa_handler;
+	regs->bpc = (unsigned long)ksig->ka.sa.sa_handler;
 
 	set_fs(USER_DS);
 
@@ -228,10 +222,6 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 #endif
 
 	return 0;
-
-give_sigsegv:
-	force_sigsegv(sig, current);
-	return -EFAULT;
 }
 
 static int prev_insn(struct pt_regs *regs)
@@ -252,9 +242,10 @@ static int prev_insn(struct pt_regs *regs)
  */
 
 static void
-handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info,
-	      struct pt_regs *regs)
+handle_signal(struct ksignal *ksig, struct pt_regs *regs)
 {
+	int ret;
+
 	/* Are we from a system call? */
 	if (regs->syscall_nr >= 0) {
 		/* If so, check system call restarting.. */
@@ -265,7 +256,7 @@ handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info,
 				break;
 
 			case -ERESTARTSYS:
-				if (!(ka->sa.sa_flags & SA_RESTART)) {
+				if (!(ksig->ka.sa.sa_flags & SA_RESTART)) {
 					regs->r0 = -EINTR;
 					break;
 				}
@@ -278,10 +269,9 @@ handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info,
 	}
 
 	/* Set up the stack frame */
-	if (setup_rt_frame(sig, ka, info, sigmask_to_save(), regs))
-		return;
+	ret = setup_rt_frame(ksig, sigmask_to_save(), regs);
 
-	signal_delivered(sig, info, ka, regs, 0);
+	signal_setup_done(ret, ksig, 0);
 }
 
 /*
@@ -291,9 +281,7 @@ handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info,
  */
 static void do_signal(struct pt_regs *regs)
 {
-	siginfo_t info;
-	int signr;
-	struct k_sigaction ka;
+	struct ksignal ksig;
 
 	/*
 	 * We want the common case to go fast, which
@@ -304,8 +292,7 @@ static void do_signal(struct pt_regs *regs)
 	if (!user_mode(regs))
 		return;
 
-	signr = get_signal_to_deliver(&info, &ka, regs, NULL);
-	if (signr > 0) {
+	if (get_signal(&ksig)) {
 		/* Re-enable any watchpoints before delivering the
 		 * signal to user space. The processor register will
 		 * have been cleared if the watchpoint triggered
@@ -313,7 +300,7 @@ static void do_signal(struct pt_regs *regs)
 		 */
 
 		/* Whee!  Actually deliver the signal.  */
-		handle_signal(signr, &ka, &info, regs);
+		handle_signal(&ksig, regs);
 
 		return;
 	}
diff --git a/arch/m32r/kernel/time.c b/arch/m32r/kernel/time.c
index 1a15f81ea1bd..093f2761aa51 100644
--- a/arch/m32r/kernel/time.c
+++ b/arch/m32r/kernel/time.c
@@ -134,7 +134,6 @@ static irqreturn_t timer_interrupt(int irq, void *dev_id)
 
 static struct irqaction irq0 = {
 	.handler = timer_interrupt,
-	.flags = IRQF_DISABLED,
 	.name = "MFT2",
 };