question about __v annotation

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Subject: question about __v annotation
From: Shawn <citypw@xxxxxxxxx>
Date: Sat, 2 Jan 2010 21:10:08 +0800

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; })

--
GNU powered it...
GPL protect it...
God blessing it...

regards
HFG--Shawn the R0ck

Follow-Ups:
- Re: question about __v annotation
  - From: Anand Arumugam
- Re: question about __v annotation
  - From: Greg KH
- Re: question about __v annotation
  - From: Ryan Wang
- Re: question about __v annotation
  - From: Tadeusz Struk
- Re: question about __v annotation
  - From: Manish Katiyar

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