commit 8eae10e86c57b6be5e4842b34ea541efbca28bf8
author Al Viro <viro@zeniv.linux.org.uk> Mon Oct 15 16:37:12 2012 -0400
committer Al Viro <viro@zeniv.linux.org.uk> Wed Oct 31 22:59:39 2012 -0400
tree 400a56bab5e2fdbf3cd4e30fab9f6eb5e3ada3ba
parent ea4a1da9b2e6f419526b5fde15cd5563096368eb

m32r: switch to generic sys_execve()

... and get rid of the horrors in fork()/vfork()/clone() prototypes.
It's fscking faster to calculate pt_regs in question than to fetch
the pointer from stack...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

arch/m32r/include/asm/ptrace.h

diff --git a/arch/m32r/include/asm/ptrace.h b/arch/m32r/include/asm/ptrace.h
index 4313aa6..c4432f1 100644
--- a/arch/m32r/include/asm/ptrace.h
+++ b/arch/m32r/include/asm/ptrace.h
@@ -139,6 +139,8 @@
 
 #define task_pt_regs(task) \
         ((struct pt_regs *)(task_stack_page(task) + THREAD_SIZE) - 1)
+#define current_pt_regs() ((struct pt_regs *) \
+	((unsigned long)current_thread_info() + THREAD_SIZE) - 1)
 
 #endif /* __KERNEL */