Re: [RFC][PATCH] printk: Add %pb to print bitmaps
From: Peter Zijlstra
Date: Wed May 09 2012 - 10:24:22 EST
On Wed, 2012-05-09 at 16:15 +0200, Ingo Molnar wrote:
> So, if someone specifies an incomplete "%pb" format - fmt
> will be 0 and we take precision as the length - presumably also
yes, printf_spec is initialized to 0s.
> We stick that 0 into:
> > + len = bitmap_scnlistprintf(buf, end - buf, ptr, bits);
> Will that work?
Yes, bitmap_scnlistprintf() will only set buf = 0 (which will be
overwritten by a possible next printf token) and return 0 length not
advancing the ptr.
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/