On Sat, Jan 02, 2010 at 09:10:08PM +0800, Shawn wrote:
> hello guys,
> I got a newbie confused when I was looking into the source code of
> s3c2440's RTC driver.I dont know what is __v excatly means.anyone can
> tell?thanks anyway!
>
> #define readb(c) ({ __u8 __v = __raw_readb(__mem_pci(c)); __v; })
__v is an variable that the macro creates and then returns the value of.
Don't code like this, it's horrible :)
thanks,
greg k-h
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