linux-kernel - Re: [PATCH] serial: pnx8xxx_uart: Fix break signal handling

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Date:	Tue, 13 Jan 2009 13:48:12 +0000
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	"Mischa Jonker" <m.d.s.x.jonker@...il.com>
Cc:	"Jonker M.D.S.X." <nlv14114@...nl-htc01.nxp.com>,
	linux-serial@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] serial: pnx8xxx_uart: Fix break signal handling

> > This appears to be unrelated.
> >
> 
> Correct, you can look to it as two separate bugs:
> a) the next character is not ignored while it should;
> b) the status bits 31-8 are copied to the 'ch' variable while they shouldn't.
> 
> Both bugs prevent correct break signal handling (and therefore correct
> behaviour of the magic SysRq key). Bug b didn't cause too much trouble
> earlier because in most situations the status bits are all zero; for
> this case they unfortunately aren't.

Ok that makes sense - no need to split them.
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