linux-kernel - Re: [PATCH] parport: parport_pc: PCI SIO access should also depend on SIO option

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Date:	Sun, 1 May 2016 08:45:12 +0100
From:	Sudip Mukherjee <sudipm.mukherjee@...il.com>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	linux-kernel@...r.kernel.org, linux-parport@...ts.infradead.org,
	"Maciej S. Szmigiero" <mail@...iej.szmigiero.name>
Subject: Re: [PATCH] parport: parport_pc: PCI SIO access should also depend
 on SIO option

On Sat, Apr 30, 2016 at 01:56:40PM -0700, Greg Kroah-Hartman wrote:
> On Wed, Apr 20, 2016 at 01:09:51PM +0530, Sudip Mukherjee wrote:
> > From: "Maciej S. Szmigiero" <mail@...iej.szmigiero.name>
> > 
> > CONFIG_PARPORT_PC_SUPERIO toggles Super IO chip support in parport_pc
> > code, however only code accessing SIO chip via ISA (or LPC) bus was
> > conditional on it.
> > 
> > This patch makes SIO chip accesses via PCI bus also dependent on this
> > config option.
> > 
> > It should be noted that Super IO support in parport_pc is needed only when
> > firmware has failed to make parallel port available either via PNP or
> > on standard I/O ranges and user has one of a few supported SIOs.
> > 
> > Signed-off-by: Maciej S. Szmigiero <mail@...iej.szmigiero.name>
> > ---
> > 
> > Hi Greg,
> > This patch is not tested on any superio chip based hardware. (I also
> > don't have one).
> > http://www.spinics.net/lists/kernel/msg2227051.html
> > 
> > I know you dislike adding #ifdef so its upto you.
> 
> It's really a messy patch, surely there is a better solution.

yes, might be. But without hardware, should i dare?

regards
sudip