From: Joe Perches <joe@xxxxxxxxxxx>
Date: Mon, 18 Feb 2008 17:03:32 -0800
> Does this need to be done for all function calls
> declared with __attribute__((format(printf, x, y)))
> {
> return 0;
> }
>
> ie: pr_debug, dev_dbg, dev_vdbg?
No, I don't think so.
We're adding the tag to teach the compiler that if the
return value isn't used, it is OK not to emit the call
altogether.
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