linux-kernel - Re: [PATCH 1/2] staging: et131x: Fix checkpatch whitespace warnings

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Date:	Fri, 09 Sep 2011 22:41:35 -0700
From:	Joe Perches <joe@...ches.com>
To:	Mark Einon <mark.einon@...il.com>
Cc:	gregkh@...e.de, devel@...verdev.osuosl.org,
	linux-kernel@...r.kernel.org, o.hartmann@...ovital.com
Subject: Re: [PATCH 1/2] staging: et131x: Fix checkpatch whitespace warnings

On Sat, 2011-09-03 at 12:49 +0100, Mark Einon wrote:
> Some of my previous hacking attempts have not been following the rules.
> All fixes either lines > 80 chars or whitespace corrections (spaces->tabs etc).
[]
> diff --git a/drivers/staging/et131x/et1310_mac.c b/drivers/staging/et131x/et1310_mac.c
> index ab85cb3..36f2168 100644
> --- a/drivers/staging/et131x/et1310_mac.c
> +++ b/drivers/staging/et131x/et1310_mac.c
> @@ -191,7 +191,8 @@ void et1310_config_mac_regs2(struct et131x_adapter *adapter)
>  	cfg1 |= CFG1_RX_ENABLE | CFG1_TX_ENABLE | CFG1_TX_FLOW;
>  	/* Initialize loop back to off */
>  	cfg1 &= ~(CFG1_LOOPBACK | CFG1_RX_FLOW);
> -	if (adapter->flowcontrol == FLOW_RXONLY || adapter->flowcontrol == FLOW_BOTH)
> +	if (adapter->flowcontrol == FLOW_RXONLY ||
> +				adapter->flowcontrol == FLOW_BOTH)

Especially in cases like this, it helps readability
to align to open parenthesis like:

	if (adapter->flowcontrol == FLOW_RXONLY ||
	    adapter->flowcontrol == FLOW_BOTH)

[]
> @@ -641,7 +641,8 @@ static inline void free_send_packet(struct et131x_adapter *adapter,
>  		 * they point to
>  		 */
>  		do {
> -			desc = (struct tx_desc *)(adapter->tx_ring.tx_desc_ring +
> +			desc = (struct tx_desc *)
> +				    (adapter->tx_ring.tx_desc_ring +
>  						INDEX10(tcb->index_start));

Isn't this an unnecessary cast?
Perhaps it's better as:

			u32 i10 = INDEX10(tcb->index_start);

			desc = &adapter->tx_ring.tx_desc_ring[i10];


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