From: Zhu Yanjun <yanjun.zhu@oracle.com>
To: Jakub Kicinski <jakub.kicinski@netronome.com>
Cc: rain.1986.08.12@gmail.com, davem@davemloft.net, netdev@vger.kernel.org
Subject: Re: [PATCHv4 1/1] net: forcedeth: add xmit_more support
Date: Wed, 6 Nov 2019 13:50:23 +0800 [thread overview]
Message-ID: <ad67f447-650d-3d09-b347-bb416bc4a246@oracle.com> (raw)
In-Reply-To: <20191105204837.63fe5b70@cakuba.netronome.com>
On 2019/11/6 12:48, Jakub Kicinski wrote:
> On Wed, 6 Nov 2019 12:47:29 +0800, Zhu Yanjun wrote:
>> On 2019/11/6 1:48, Jakub Kicinski wrote:
>>> On Mon, 4 Nov 2019 23:26:41 -0500, Zhu Yanjun wrote:
>>>> diff --git a/drivers/net/ethernet/nvidia/forcedeth.c b/drivers/net/ethernet/nvidia/forcedeth.c
>>>> index 05d2b47..0d21ddd 100644
>>>> --- a/drivers/net/ethernet/nvidia/forcedeth.c
>>>> +++ b/drivers/net/ethernet/nvidia/forcedeth.c
>>>> @@ -2259,7 +2265,12 @@ static netdev_tx_t nv_start_xmit(struct sk_buff *skb, struct net_device *dev)
>>>> u64_stats_update_begin(&np->swstats_tx_syncp);
>>>> nv_txrx_stats_inc(stat_tx_dropped);
>>>> u64_stats_update_end(&np->swstats_tx_syncp);
>>>> - return NETDEV_TX_OK;
>>>> +
>>>> + writel(NVREG_TXRXCTL_KICK | np->txrxctl_bits,
>>>> + get_hwbase(dev) + NvRegTxRxControl);
>>>> + ret = NETDEV_TX_OK;
>>>> +
>>>> + goto dma_error;
>>> You could goto the middle of the txkick if statement here, instead of
>>> duplicating the writel()?
>> As your suggestion, the change is like this:
>>
>> @@ -2374,7 +2374,9 @@ static netdev_tx_t nv_start_xmit(struct sk_buff
>> *skb, struct net_device *dev)
>> spin_unlock_irqrestore(&np->lock, flags);
>>
>> txkick:
>> - if (netif_queue_stopped(dev) || !netdev_xmit_more()) {
>> + if (netif_queue_stopped(dev) || !netdev_xmit_more())
>> +dma_error:
>> + {
>> u32 txrxctl_kick = NVREG_TXRXCTL_KICK | np->txrxctl_bits;
>>
>> writel(txrxctl_kick, get_hwbase(dev) + NvRegTxRxControl);
>>
>> The opening brace on the first of the line. It conflicts with the following:
>>
>> Documentation/process/coding-style.rst:
>> "
>> 98 3) Placing Braces and Spaces
>> 99 ----------------------------
>> 100
>> 101 The other issue that always comes up in C styling is the placement of
>> 102 braces. Unlike the indent size, there are few technical reasons to
>> 103 choose one placement strategy over the other, but the preferred
>> way, as
>> 104 shown to us by the prophets Kernighan and Ritchie, is to put the
>> opening
>> 105 brace last on the line, and put the closing brace first, thusly:
>> "
>> So I prefer to the current code style.
>>
>> Thanks for your suggestions.
> if (netif_queue_stopped(dev) || !netdev_xmit_more()) {
> u32 txrxctl_kick;
>
> txkick:
> txrxctl_kick = NVREG_TXRXCTL_KICK | np->txrxctl_bits;
> writel(txrxctl_kick, get_hwbase(dev) + NvRegTxRxControl);
> }
Thanks a lot. Will send a new patch with the above changes.
Zhu Yanjun
>
prev parent reply other threads:[~2019-11-06 5:44 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-05 4:26 [PATCHv4 1/1] net: forcedeth: add xmit_more support Zhu Yanjun
2019-11-05 17:48 ` Jakub Kicinski
2019-11-06 4:47 ` Zhu Yanjun
2019-11-06 4:48 ` Jakub Kicinski
2019-11-06 5:50 ` Zhu Yanjun [this message]
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