linux-kernel - RE: [PATCH net-next v17 02/13] rtase: Implement the .ndo

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Date: Fri, 3 May 2024 10:19:05 +0000
From: Justin Lai <justinlai0215@...ltek.com>
To: Simon Horman <horms@...nel.org>
CC: "kuba@...nel.org" <kuba@...nel.org>,
        "davem@...emloft.net"
	<davem@...emloft.net>,
        "edumazet@...gle.com" <edumazet@...gle.com>,
        "pabeni@...hat.com" <pabeni@...hat.com>,
        "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>,
        "netdev@...r.kernel.org"
	<netdev@...r.kernel.org>,
        "andrew@...n.ch" <andrew@...n.ch>,
        "jiri@...nulli.us" <jiri@...nulli.us>,
        Ping-Ke Shih <pkshih@...ltek.com>, Larry Chiu <larry.chiu@...ltek.com>
Subject: RE: [PATCH net-next v17 02/13] rtase: Implement the .ndo_open function

> On Thu, May 02, 2024 at 05:18:36PM +0800, Justin Lai wrote:
> > Implement the .ndo_open function to set default hardware settings and
> > initialize the descriptor ring and interrupts. Among them, when
> > requesting irq, because the first group of interrupts needs to process
> > more events, the overall structure will be different from other groups
> > of interrupts, so it needs to be processed separately.
> >
> > Signed-off-by: Justin Lai <justinlai0215@...ltek.com>
> 
> Hi Justin,
> 
> some minor feedback from my side.
> 
> > +static int rtase_open(struct net_device *dev) {
> > +     struct rtase_private *tp = netdev_priv(dev);
> > +     struct rtase_int_vector *ivec = &tp->int_vector[0];
> > +     const struct pci_dev *pdev = tp->pdev;
> > +     u16 i, j;
> > +     int ret;
> 
> nit: please use reverse xmas tree order - longest line to shortest -
>      for local variable declarations in new Networking code.
> 
Hi Simon,
This is partly because ivec needs to use tp for initialization,
so tp is placed in front of ivec, causing this situation.