linux-kernel - Re: MPT2SAS boot fail... due to silently loosing the driver

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Message-ID: <20151126105123.GB8745@gmail.com>
Date:	Thu, 26 Nov 2015 11:51:23 +0100
From:	Ingo Molnar <mingo@...nel.org>
To:	"Martin K. Petersen" <martin.petersen@...cle.com>
Cc:	Peter Zijlstra <peterz@...radead.org>,
	Sreekanth.Reddy@...gotech.com, hch@....de, hare@...e.de,
	linux-kernel@...r.kernel.org
Subject: Re: MPT2SAS boot fail... due to silently loosing the driver


* Martin K. Petersen <martin.petersen@...cle.com> wrote:

> I guess we could do something like the following and let it sit for a
> release cycle to help people transition. Bit of a hack, but it worked
> for me in my quick testing...

So I'm not sure how this could have worked for you in testing: try to set the 
MPT2SAS option to =y in your .config:

 CONFIG_SCSI_MPT2SAS=y 

then run 'make oldconfig', and the option is disabled:

 # CONFIG_SCSI_MPT2SAS is not set

The way to solve this is to make it an interactive option, with text to make sure 
users don't mistake it for anything else than it is: a legacy/migration helper 
config.

Thanks,

	Ingo
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