linux-kernel - Re: [2.6.19 patch] drivers/ide/pci/generic.c: re-add the _

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Date:	Thu, 19 Oct 2006 09:07:41 -0700
From:	Randy Dunlap <randy.dunlap@...cle.com>
To:	Adrian Bunk <bunk@...sta.de>
Cc:	Alan Cox <alan@...hat.com>, Patrick Jefferson <henj@...com>,
	Kenny Graunke <kenny@...tecape.org>,
	linux-kernel@...r.kernel.org, linux-ide@...r.kernel.org
Subject: Re: [2.6.19 patch] drivers/ide/pci/generic.c: re-add the
 __setup("all-generic-ide",...)

On Thu, 19 Oct 2006 17:26:51 +0200 Adrian Bunk wrote:

> On Wed, Oct 18, 2006 at 07:18:44PM -0400, Alan Cox wrote:
> > On Thu, Oct 19, 2006 at 12:15:20AM +0200, Adrian Bunk wrote:
> > > IOW, your patch does break existing setups since the change to 
> > > module_param() requires prefixing with the module name (the ata_generic 
> > > option with the same name is irrelevant)?
> > > 
> > > Considering that drivers/ide/ is slowly approaching a RIP status, 
> > > is such an incompatible change really required?
> > > 
> > > I'd be more inclined to revert your patch.
> > 
> > We shouldn't revert it - there is a real problem for some users whose
> > distro has it modular this fixed. We might want to honour both 
> 
> Agreed, patch below.
> 
> cu
> Adrian
> 
> 
> <--  snip  -->
> 
> 
> The change from __setup() to module_param_named() requires users to 
> prefix the option with "generic.".
> 
> This patch re-adds the __setup() additionally to the 
> module_param_named().
> 
> Usually it would make sense getting rid of such an obsolete __setup() at 
> some time, but considering that drivers/ide/ is slowly approaching a RIP 
> status it's already implicitely scheduled for removal.
> 
> This patch fixes kernel Bugzilla #7353.
> 
> Signed-off-by: Adrian Bunk <bunk@...sta.de>
> 
> --- linux-2.6/drivers/ide/pci/generic.c.old	2006-10-19 16:35:15.000000000 +0200
> +++ linux-2.6/drivers/ide/pci/generic.c	2006-10-19 16:46:21.000000000 +0200
> @@ -40,6 +40,19 @@
>  
>  static int ide_generic_all;		/* Set to claim all devices */
>  
> +/*
> + * the module_param_named() was added for the modular case
> + * the __setup() is left as compatibility for existing setups
> + */
> +#ifndef MODULE
> +static int __init ide_generic_all_on(char *unused)
> +{
> +	ide_generic_all = 1;
> +	printk(KERN_INFO "IDE generic will claim all unknown PCI IDE storage controllers.");
> +	return 1;
> +}
> +__setup("all-generic-ide", ide_generic_all_on);
> +#endif
>  module_param_named(all_generic_ide, ide_generic_all, bool, 0444);
>  MODULE_PARM_DESC(all_generic_ide, "IDE generic will claim all unknown PCI IDE storage controllers.");

Missing update to Documentation/kernel-parameters.txt ?
(maybe it's been missing forever?)

---
~Randy
-
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