From 98c7b388afffdc5699095261b437b286d718270c Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Wed, 5 Mar 2008 12:37:09 +0100 Subject: [S390] Get rid of memcpy gcc warning workaround. Compile smp.o with -Wno-nonnull so gcc stops warning about memcpy being used with a null parameter. Also remove the workaround code and use a char * cast instead of a void * cast to do computations. Cc: Bastian Blank Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky --- arch/s390/kernel/smp.c | 10 ++-------- 1 file changed, 2 insertions(+), 8 deletions(-) (limited to 'arch/s390/kernel/smp.c') diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c index 818bd09c0260..8f894d380a62 100644 --- a/arch/s390/kernel/smp.c +++ b/arch/s390/kernel/smp.c @@ -629,14 +629,8 @@ static int __cpuinit smp_alloc_lowcore(int cpu) panic_stack = __get_free_page(GFP_KERNEL); if (!panic_stack || !async_stack) goto out; - /* - * Only need to copy the first 512 bytes from address 0. But since - * the compiler emits a warning if src == NULL for memcpy use copy_page - * instead. Copies more than needed but this code is not performance - * critical. - */ - copy_page(lowcore, &S390_lowcore); - memset((void *)lowcore + 512, 0, sizeof(*lowcore) - 512); + memcpy(lowcore, &S390_lowcore, 512); + memset((char *)lowcore + 512, 0, sizeof(*lowcore) - 512); lowcore->async_stack = async_stack + ASYNC_SIZE; lowcore->panic_stack = panic_stack + PAGE_SIZE; -- cgit v1.2.1