Re: [patch v2] Fixes and cleanups for earlyprintk aka boot console.

From: Andrew Morton
Date: Tue Apr 24 2007 - 13:28:30 EST

On Tue, 24 Apr 2007 16:04:16 +0200 Gerd Hoffmann <kraxel@xxxxxxxxxx> wrote:

> > I get this, across netconsole:
> >
> > [17179569.184000] console handover: boot [earlyvga_f_0] -> real [tty0]
> >
> > wanna take a look at why there's cruft in bootconsole->name please?
> -EFULL ;)
> "earlyvga" is 8 chars. struct console->name is char[8]. No space left
> for the trailing ´\0´, the cruft comes from the next field (write
> function pointer). Obviously nobody ever printed the early console
> names before.


> Hmm. We can make the names shorter. We can make the name field longer
> (probably 16, it ends up taking that much anyway due to aligments at
> least on 64bit). This looks best to me. We could also use
> printk("%.8s",name) to make printk stop after 8 chars, but I somehow
> don't like hardcoding the length like this ...

yup, making it 16 sounds simplest. I'll do the patch, thanks.
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