Commit 49db1f0e authored Mar 02, 2015 by Linus Torvalds

metag

Pull arch/metag fix from James Hogan:
 "This is just a single patch to fix the KSTK_EIP() and KSTK_ESP()
  macros for metag which have always been erronously returning the PC
  and stack pointer of the task's kernel context rather than from its
  user context saved at entry from userland into the kernel, which
  affects the contents of /proc/<pid>/maps and /proc/<pid>/stat"

* tag 'metag-fixes-v4.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag:
  metag: Fix KSTK_EIP() and KSTK_ESP() macros

parents a38ecbbd c2996cb2

arch/metag/include/asm/processor.h

+2 −2

Original line number	Diff line number	Diff line
		@@ -149,8 +149,8 @@ extern void exit_thread(void);

		unsigned long get_wchan(struct task_struct *p);

		#define KSTK_EIP(tsk) ((tsk)->thread.kernel_context->CurrPC)
		#define KSTK_ESP(tsk) ((tsk)->thread.kernel_context->AX[0].U0)
		#define KSTK_EIP(tsk) (task_pt_regs(tsk)->ctx.CurrPC)
		#define KSTK_ESP(tsk) (task_pt_regs(tsk)->ctx.AX[0].U0)

		#define user_stack_pointer(regs) ((regs)->ctx.AX[0].U0)