Re: [PATCH v2] x86/earlyprintk: Add a force option for pciserial device

[Feng Tang]

Hi Boris,

On Mon, Oct 01, 2018 at 10:30:04PM +0200, Borislav Petkov wrote:
> On Mon, Oct 01, 2018 at 10:18:10PM +0800, Feng Tang wrote:
> > As I rechecked, the baud rate for pciserial is optional, so there may
> > be no ",baudrate" following the "force". So this 2 strncmp is to
> > cover conditions for with and without baudrate.
> 
> And what guarantees you have a space after the "force"?
> 
> 	!strncmp(s, "force ", 6)
> 			  ^

You are right, it can't be guranteed. Can we still use strncmp(s, "force", 5)
and rely on developer to set it right? any suggestions? thanks,

- Feng