Re: [RFC] Recursive printk

From: Linus Torvalds
Date: Sat Dec 06 2008 - 18:25:40 EST

On Sun, 7 Dec 2008, Nick Andrew wrote:
> I agree completely. I was hoping somebody could tell me how to include
> '%v' in gcc's acceptable list, but it seems impossible. The alternative
> then is to use '%pV%s' which gcc _should_ like (I haven't tested it,
> but it seems reasonable) and reverse the order of the fmt and args
> in the function call arguments.

Don't do %pV%s, do just %pV, and pass it a pointer to a struct, something

struct va_format {
const char *fmt;
va_list va;

and make people who use this just always pass things around like that.

(Maybe use "va_list *va" to add another level of indirection if necessary)

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