Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (262 commits)
  sh: mach-ecovec24: Add user debug switch support
  sh: Kill off unused se_skipped in alignment trap notification code.
  sh: Wire up HAVE_SYSCALL_TRACEPOINTS.
  video: sh_mobile_lcdcfb: use both register sets for display panning
  video: sh_mobile_lcdcfb: implement display panning
  sh: Fix up sh7705 flush_dcache_page() build.
  sh: kfr2r09: document the PLL/FLL <-> RF relationship.
  sh: mach-ecovec24: need asm/clock.h.
  sh: mach-ecovec24: deassert usb irq on boot.
  sh: Add KEYSC support for EcoVec24
  sh: add kycr2_delay for sh_keysc
  sh: cpufreq: Include CPU id in info messages.
  sh: multi-evt support for SH-X3 proto CPU.
  sh: clkfwk: remove bogus set_bus_parent() from SH7709.
  sh: Fix the indication point of the liquid crystal of AP-325RXA(AP3300)
  sh: Add EcoVec24 romImage defconfig
  sh: USB disable process is needed if romImage boot for EcoVec24
  sh: EcoVec24: add HIZA setting for LED
  sh: EcoVec24: write MAC address in boot
  sh: Add romImage support for EcoVec24
  ...

1 files changed, 10 insertions, 14 deletions

diff --git a/arch/sh/kernel/process_64.c b/arch/sh/kernel/process_64.c
index 24de7421494..1192398ef58 100644
--- a/arch/sh/kernel/process_64.c
+++ b/arch/sh/kernel/process_64.c
@@ -425,7 +425,6 @@ int copy_thread(unsigned long clone_flags, unsigned long usp,
 		struct task_struct *p, struct pt_regs *regs)
 {
 	struct pt_regs *childregs;
-	unsigned long long se;			/* Sign extension */
 
 #ifdef CONFIG_SH_FPU
 	if(last_task_used_math == current) {
@@ -441,11 +440,19 @@ int copy_thread(unsigned long clone_flags, unsigned long usp,
 
 	*childregs = *regs;
 
+	/*
+	 * Sign extend the edited stack.
+	 * Note that thread.pc and thread.pc will stay
+	 * 32-bit wide and context switch must take care
+	 * of NEFF sign extension.
+	 */
 	if (user_mode(regs)) {
-		childregs->regs[15] = usp;
+		childregs->regs[15] = neff_sign_extend(usp);
 		p->thread.uregs = childregs;
 	} else {
-		childregs->regs[15] = (unsigned long)task_stack_page(p) + THREAD_SIZE;
+		childregs->regs[15] =
+			neff_sign_extend((unsigned long)task_stack_page(p) +
+					 THREAD_SIZE);
 	}
 
 	childregs->regs[9] = 0; /* Set return value for child */
@@ -454,17 +461,6 @@ int copy_thread(unsigned long clone_flags, unsigned long usp,
 	p->thread.sp = (unsigned long) childregs;
 	p->thread.pc = (unsigned long) ret_from_fork;
 
-	/*
-	 * Sign extend the edited stack.
-         * Note that thread.pc and thread.pc will stay
-	 * 32-bit wide and context switch must take care
-	 * of NEFF sign extension.
-	 */
-
-	se = childregs->regs[15];
-	se = (se & NEFF_SIGN) ? (se | NEFF_MASK) : se;
-	childregs->regs[15] = se;
-
 	return 0;
 }