On Wed, Jun 03, 2015 at 08:35:29AM -0400, Peter Hurley wrote:
> > +/* x86 uses "earlyprintk=xxx", so we keep the compatibility here */
> > +#ifdef CONFIG_X86
> > +static int __init param_setup_earlycon_x86(char *buf)
> > +{
> > + return param_setup_earlycon(buf);
> > +}
> > +early_param("earlyprintk", param_setup_earlycon_x86);
>
> I'm concerned that this effectively makes earlyprintk= a synonym for
> earlycon=, which may have unforeseen consequences. I'd rather this
> specifically parse for replacement functionality, ie., only command line
> parameters of the form:
>
> earlyprintk=pciserial,...
>
> Regards,
> Peter Hurley
>
Something like this: ?
/*
* x86 uses "earlyprintk=xxx", so we keep the compatibility here.
* But we only handle the earlyprintk=uart8250,pci[32]B:D.F[,options] case.
*/
#ifdef CONFIG_X86
static int __init param_setup_earlycon_x86(char *buf)
{
if (strncmp("uart8250,pci", 12))
return -EINVAL;
return param_setup_earlycon(buf);
}
early_param("earlyprintk", param_setup_earlycon_x86);
Thanks,
Bin
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