netdev - Re: [PATCH] net/ethernet/sgi: Code cleanup

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Message-ID: <a7a9232d-e53e-91b9-7cb8-6eccecb8af01@gentoo.org>
Date:   Thu, 19 Oct 2017 22:00:46 -0400
From:   Joshua Kinard <kumba@...too.org>
To:     David Miller <davem@...emloft.net>
Cc:     ralf@...ux-mips.org, linux-mips@...ux-mips.org,
        netdev@...r.kernel.org, tglx@...utronix.de,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] net/ethernet/sgi: Code cleanup

On 10/19/2017 08:27, David Miller wrote:
> From: Joshua Kinard <kumba@...too.org>
> Date: Tue, 17 Oct 2017 13:54:30 -0400
> 
>> From: Joshua Kinard <kumba@...too.org>
>>
>> The below patch attempts to clean up the code for the in-tree driver
>> for IOC3 ethernet and serial console support, primarily used by SGI
>> MIPS platforms.  Notable changes include:
>>
>>   - Lots of whitespace cleanup
>>   - Using shorthand integer types (u16, u32, etc) where appropriate
> 
> These seem to be arbitrary, "unsigned int" is a fine value for a
> hash computation.

I can back those changes out if you'd like.  I was aiming more for consistency.
 There is one specific change that is required, where the IP protocol number is
being parsed into a signed char field when it should be unsigned char.  I can
send that in as its own patch if you'd like.

> You're also making many different kinds of changes in one patch
> which makes it very difficult to review.

This patch is more of a preparation patch, because I have additional pending
changes to move towards using the IOC3 "metadriver" (drivers/sn/ioc3.c) on the
supported MIPS/SGI systems.  That metadriver is only used by IA64 right now.
The changes in this patch were primarily to reduce the diff size of the
metadriver patch when I get time to get it cleaned up.

I can either try for a v2 of this patch to split it up, or hold off and make it
part of the metadriver patch.  I figured since that patch will need to go
through several subsystem reviewers, better to try sending this one in first.

> This driver is also for such ancient hardware, that the risk
> of potentially breaking the driver far outweighs the value of
> "cleaning up" the code.

I am familiar with this hardware, actually.  I have several SGI machines
powered on periodically that use this particular chip, and am familiar with its
quirks and frustrations.  Although it's been a while since I tested this
specific batch of changes by itself, the last time I did, the machine booted
fine.  With the metadriver patch applied on top, I know this driver works
well-enough.

-- 
Joshua Kinard
Gentoo/MIPS
kumba@...too.org
6144R/F5C6C943 2015-04-27
177C 1972 1FB8 F254 BAD0 3E72 5C63 F4E3 F5C6 C943

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