From 39b083fe1c3c7b88939f6fa1b0b96e579f12e96f Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Wed, 20 Sep 2006 15:58:51 +0200 Subject: [S390] empty function defines. Use do { } while (0) constructs instead of empty defines to avoid subtle compile bugs. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky --- include/asm-s390/dma.h | 2 +- include/asm-s390/io.h | 2 +- include/asm-s390/smp.h | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/asm-s390/dma.h b/include/asm-s390/dma.h index 02720c449cd8..7425c6af6cd4 100644 --- a/include/asm-s390/dma.h +++ b/include/asm-s390/dma.h @@ -11,6 +11,6 @@ #define MAX_DMA_ADDRESS 0x80000000 -#define free_dma(x) +#define free_dma(x) do { } while (0) #endif /* _ASM_DMA_H */ diff --git a/include/asm-s390/io.h b/include/asm-s390/io.h index d4614b35f423..a6cc27e77007 100644 --- a/include/asm-s390/io.h +++ b/include/asm-s390/io.h @@ -116,7 +116,7 @@ extern void iounmap(void *addr); #define outb(x,addr) ((void) writeb(x,addr)) #define outb_p(x,addr) outb(x,addr) -#define mmiowb() +#define mmiowb() do { } while (0) /* * Convert a physical pointer to a virtual kernel pointer for /dev/mem diff --git a/include/asm-s390/smp.h b/include/asm-s390/smp.h index 657646054c5e..9fb02e9779c9 100644 --- a/include/asm-s390/smp.h +++ b/include/asm-s390/smp.h @@ -104,7 +104,7 @@ smp_call_function_on(void (*func) (void *info), void *info, #define smp_cpu_not_running(cpu) 1 #define smp_get_cpu(cpu) ({ 0; }) #define smp_put_cpu(cpu) ({ 0; }) -#define smp_setup_cpu_possible_map() +#define smp_setup_cpu_possible_map() do { } while (0) #endif #endif -- cgit v1.2.3-59-g8ed1b