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SubjectRe: Purpose of do{}while(0) in #define spin_lock_init(x) do { (x)->lock = 0; } while(0)
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On Wed, 2005-01-05 at 19:31 +0530, Kotian, Deepak wrote:
> Is there any specific reason why do{}while(0) is
> there in this definition
> #define spin_lock_init(x) do { (x)->lock = 0; } while(0)
>
> What could happen if it is replaced by
> #define spin_lock_init(x) { (x)->lock = 0; }

http://kernelnewbies.org/faq/index.php3#dowhile

Bernd
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Firmix Software GmbH http://www.firmix.at/
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