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| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2006-09-20 15:58:51 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2006-09-20 15:58:51 +0200 |
| commit | 39b083fe1c3c7b88939f6fa1b0b96e579f12e96f (patch) | |
| tree | b56864fed4a0aa286696cb4e63cbea6d8a962c8a /include/asm-s390 | |
| parent | ff6b8ea68f4b7353f88b97024f28127e2148aa00 (diff) | |
| download | lwn-39b083fe1c3c7b88939f6fa1b0b96e579f12e96f.tar.gz lwn-39b083fe1c3c7b88939f6fa1b0b96e579f12e96f.zip | |
[S390] empty function defines.
Use do { } while (0) constructs instead of empty defines to avoid
subtle compile bugs.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'include/asm-s390')
| -rw-r--r-- | include/asm-s390/dma.h | 2 | ||||
| -rw-r--r-- | include/asm-s390/io.h | 2 | ||||
| -rw-r--r-- | include/asm-s390/smp.h | 2 |
3 files changed, 3 insertions, 3 deletions
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 |