diff options
| author | David Woodhouse <David.Woodhouse@intel.com> | 2009-09-20 05:55:36 -0700 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2009-09-20 05:55:36 -0700 |
| commit | 6469f540ea37d53db089c8fea9c0c77a3d9353d4 (patch) | |
| tree | 1dc9dc077150d57f4424cae49e711b5dd6e903a1 /arch/sh/kernel/process_64.c | |
| parent | 304e6d5fe294b80e6d3107f99ec241816390ebcc (diff) | |
| parent | 78f28b7c555359c67c2a0d23f7436e915329421e (diff) | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
drivers/mtd/mtdcore.c
Merged in order that I can apply the Nomadik nand/onenand support patches.
Diffstat (limited to 'arch/sh/kernel/process_64.c')
| -rw-r--r-- | arch/sh/kernel/process_64.c | 24 |
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; } |