linux-kernel - Re: [PATCH] mtd: phram: error handling

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Message-ID: <20151110194157.GS12143@google.com>
Date:	Tue, 10 Nov 2015 11:41:57 -0800
From:	Brian Norris <computersforpeace@...il.com>
To:	Saurabh Sengar <saurabh.truth@...il.com>
Cc:	joe@...ches.com, andy.shevchenko@...il.com, joern@...ybastard.org,
	dwmw2@...radead.org, linux-mtd@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mtd: phram: error handling

On Wed, Nov 11, 2015 at 12:57:55AM +0530, Saurabh Sengar wrote:
> Sorry, I am not able to test the driver, sending the patch as asked above.

Well, today you're in luck! You're touching a driver that requires no
special hardware, so you should be able to test it.

I think you can try using the mem= kernel parameter (see
Documentation/kernel-parameters.txt) to restrict your system memory, and
then try using that unreachable portions of memory for phram. You can
try this driver as either a module or built-in. For the former, you can
specify the parameters during modprobe time, or later by writing to
/sys/module/phram/parameters/phram. For the latter, you can specify on
the kernel command line or in /sys/module/phram/parameters/phram.

Let me know if you have any more questions about testing your patch.

Brian
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