powerpc: Fix 32-bit SMP build
Josh Boyer [Fri, 20 May 2011 20:22:25 +0000 (16:22 -0400)]
Commit 69e3cea8d5fd526 ("powerpc/smp: Make start_secondary_resume
available to all CPU variants") 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>
Tested-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

arch/powerpc/kernel/misc_32.S

index 402560e..998a100 100644 (file)
@@ -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 */