linux-kernel - Re: [PATCH V1 net-next 1/1] hyperv: Enable sendbuf mechanism on the send path

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Message-ID: <20140424223059.GE26890@mwanda>
Date:	Fri, 25 Apr 2014 01:30:59 +0300
From:	Dan Carpenter <dan.carpenter@...cle.com>
To:	KY Srinivasan <kys@...rosoft.com>
Cc:	Andev <debiandev@...il.com>, "olaf@...fle.de" <olaf@...fle.de>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"jasowang@...hat.com" <jasowang@...hat.com>,
	LKML <linux-kernel@...r.kernel.org>,
	"apw@...onical.com" <apw@...onical.com>,
	"devel@...uxdriverproject.org" <devel@...uxdriverproject.org>,
	"davem@...emloft.net" <davem@...emloft.net>
Subject: Re: [PATCH V1 net-next 1/1] hyperv: Enable sendbuf mechanism on the
 send path

On Thu, Apr 24, 2014 at 10:06:24PM +0000, KY Srinivasan wrote:
> > From: Andev [mailto:debiandev@...il.com]
> > Your use of goto exit/cleanup in some functions and returning directly on
> > errors in others could use a cleanup. Please consider doing that while you are
> > touching those files.
> 
> Will do. The most recent changes I made to netvsc.c, I think was
> consistent with the existing code; going forward we will certainly
> move towards a more consistent coding style.

It scares me when you talk about being consistent with the existing
code...  Just do it the correct way.

1) Don't do the "return ret;" if you know ret is zero.

2) Replace:
	ret = vmbus_sendpacket(...);

	return ret;
   with
  	return vmbus_sendpacket(...);

3) Don't do "goto cleanup;" when "return ret;" will suffice.  The
   do-nothing goto is misleading because you assume it will cleanup
   somthing.  Some people used to misread CodingStyle to think that all
   functions should only have one return but I have updated it so it is
   more clear.

regards,
dan carpenter

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