From c6da39f26cfe475704ec521723192e520e8f51b8 Mon Sep 17 00:00:00 2001 From: Michael Holzheu Date: Tue, 13 Mar 2012 11:25:08 -0400 Subject: [PATCH] [S390] kernel: Pass correct stack for smp_call_ipl_cpu() Currently pcpu_devices->panic_stack is passed to pcpu_delegate() in smp_call_ipl_cpu(). This is wrong because pcpu_delegate() expects the bottom (high address) of the stack and pcpu_devices->panic_stack points to the top (low address). We now pass the bottom of the stack which is pcpu_devices->panic_stack + PAGE_SIZE. Signed-off-by: Michael Holzheu Signed-off-by: Martin Schwidefsky --- arch/s390/kernel/smp.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c index 3b9e5c9f4c0b..64ebbcbb31ea 100644 --- a/arch/s390/kernel/smp.c +++ b/arch/s390/kernel/smp.c @@ -335,7 +335,8 @@ void smp_call_online_cpu(void (*func)(void *), void *data) */ void smp_call_ipl_cpu(void (*func)(void *), void *data) { - pcpu_delegate(&pcpu_devices[0], func, data, pcpu_devices->panic_stack); + pcpu_delegate(&pcpu_devices[0], func, data, + pcpu_devices->panic_stack + PAGE_SIZE); } int smp_find_processor_id(u16 address) -- 2.20.1