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| author | Stefan Richter <stefanr@s5r6.in-berlin.de> | 2006-08-02 20:44:00 +0400 |
|---|---|---|
| committer | Stefan Richter <stefanr@s5r6.in-berlin.de> | 2006-09-17 21:31:20 +0400 |
| commit | 611aa19fd60fe57059d9972fa6ae29f7472a13cf (patch) | |
| tree | a87f71ef393eec3e904291d1d5da1f2fdc5bb11b /drivers/ieee1394/ohci1394.c | |
| parent | 4b60912e52bc6ccdf587f2b92f3435ee2678d730 (diff) | |
| download | linux-611aa19fd60fe57059d9972fa6ae29f7472a13cf.tar.xz | |
ieee1394: safer definition of empty macros
A deactivated macro, defined as "#define foo(bar)", will result in
silent corruption if somebody forgets a semicolon after a call to foo.
Replace it by "#define foo(bar) do {} while (0)" which will reveal any
respective syntax errors.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Diffstat (limited to 'drivers/ieee1394/ohci1394.c')
| -rw-r--r-- | drivers/ieee1394/ohci1394.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/ieee1394/ohci1394.c b/drivers/ieee1394/ohci1394.c index 330dcf7c699d..ea14c831ff41 100644 --- a/drivers/ieee1394/ohci1394.c +++ b/drivers/ieee1394/ohci1394.c @@ -136,7 +136,7 @@ #define DBGMSG(fmt, args...) \ printk(KERN_INFO "%s: fw-host%d: " fmt "\n" , OHCI1394_DRIVER_NAME, ohci->host->id , ## args) #else -#define DBGMSG(fmt, args...) +#define DBGMSG(fmt, args...) do {} while (0) #endif #ifdef CONFIG_IEEE1394_OHCI_DMA_DEBUG @@ -148,8 +148,8 @@ printk(KERN_INFO "%s: fw-host%d: " fmt "\n" , OHCI1394_DRIVER_NAME, ohci->host-> --global_outstanding_dmas, ## args) static int global_outstanding_dmas = 0; #else -#define OHCI_DMA_ALLOC(fmt, args...) -#define OHCI_DMA_FREE(fmt, args...) +#define OHCI_DMA_ALLOC(fmt, args...) do {} while (0) +#define OHCI_DMA_FREE(fmt, args...) do {} while (0) #endif /* print general (card independent) information */ @@ -210,7 +210,7 @@ static inline void packet_swab(quadlet_t *data, int tcode) } #else /* Don't waste cycles on same sex byte swaps */ -#define packet_swab(w,x) +#define packet_swab(w,x) do {} while (0) #endif /* !LITTLE_ENDIAN */ /*********************************** |