From: Josh Boyer <jwboyer@linux.vnet.ibm.com>
To: linuxppc-dev@lists.ozlabs.org
Cc: stable@kernel.org
Subject: [PATCH v2] 2.6.39 powerpc: FIx 32-bit SMP build
Date: Fri, 3 Jun 2011 08:34:02 -0400 [thread overview]
Message-ID: <20110603123402.GD2457@zod.rchland.ibm.com> (raw)
Backport upstream commit 6de06f313a65d0ec
Commit fa3f82c8bb7acb ("powerpc/smp: soft-replugged CPUs must go back to
start_secondary") introduced start_secondary_resume to head_32.S, however
it uses a 64-bit instruction which is not valid on 32-bit platforms. Use
'stw' instead.
CC: stable@kernel.org
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
diff --git a/arch/powerpc/kernel/head_32.S b/arch/powerpc/kernel/head_32.S
index c5c24be..727f40a 100644
--- a/arch/powerpc/kernel/head_32.S
+++ b/arch/powerpc/kernel/head_32.S
@@ -896,7 +896,7 @@ _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 */
reply other threads:[~2011-06-03 12:33 UTC|newest]
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