Thread (11 messages) 11 messages, 6 authors, 2011-05-20

Re: [git pull] Please pull powerpc.git merge branch

From: Richard Cochran <richardcochran@gmail.com>
Date: 2011-05-20 14:33:10
Also in: lkml

On Fri, May 20, 2011 at 09:58:45AM -0400, Josh Boyer wrote:
On Fri, May 20, 2011 at 03:23:29PM +0200, Richard Cochran wrote:
quoted
When I try to build 'next' (now at 208b3a4c), it does not compile due
to a change from the following commit.
quoted
Benjamin Herrenschmidt (1):
      powerpc/smp: Make start_secondary_resume available to all CPU variants
I would appreciate your help in getting this fixed...
Could you try the patch below?
Yes, and it both compiles and boots.

Thanks,
Richard
quoted hunk ↗ jump to hunk
Commit 69e3cea8d5fd526 introduced start_secondary_resume to misc_32.S,
however it uses a 64-bit instruction which is not valid on 32-bit
platforms.  Use 'stw' instead.

Reported-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: Josh Boyer <redacted>

---
diff --git a/arch/powerpc/kernel/misc_32.S
b/arch/powerpc/kernel/misc_32.S
index 402560e..998a100 100644
--- a/arch/powerpc/kernel/misc_32.S
+++ b/arch/powerpc/kernel/misc_32.S
@@ -700,7 +700,7 @@ _GLOBAL(start_secondary_resume)
	rlwinm  r1,r1,0,0,(31-THREAD_SHIFT)     /* current_thread_info() */
	addi    r1,r1,THREAD_SIZE-STACK_FRAME_OVERHEAD
	li      r3,0
-	std     r3,0(r1)                /* Zero the stack frame pointer */
+	stw     r3,0(r1)                /* Zero the stack frame pointer */
	bl      start_secondary
	b       .
 #endif /* CONFIG_SMP */
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