linux-kernel - Re: [PATCH v2] staging: gasket: core: Fix a coding style issue in gasket

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Date:   Wed, 15 Jul 2020 18:38:55 +0800 (CST)
From:   Zhao <zhixu001@....com>
To:     "Dan Carpenter" <dan.carpenter@...cle.com>
Cc:     "Rob Springer" <rspringer@...gle.com>,
        "Todd Poynor" <toddpoynor@...gle.com>,
        "Ben Chan" <benchan@...omium.org>, "Richard Yeh" <rcy@...gle.com>,
        "Greg Kroah-Hartman" <gregkh@...uxfoundation.org>,
        devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
        "Joe Perches" <joe@...ches.com>
Subject: Re: [PATCH v2] staging: gasket: core: Fix a coding style issue in
 gasket_core.c

At 2020-06-18 03:10:02, "Dan Carpenter" <dan.carpenter@...cle.com> wrote:
>On Thu, Jun 18, 2020 at 12:11:27AM +0800, Zhixu Zhao wrote:
>> diff --git a/drivers/staging/gasket/gasket_core.c b/drivers/staging/gasket/gasket_core.c
>> index 67325fbaf760..28dab302183b 100644
>> --- a/drivers/staging/gasket/gasket_core.c
>> +++ b/drivers/staging/gasket/gasket_core.c
>> @@ -261,6 +261,7 @@ static int gasket_map_pci_bar(struct gasket_dev *gasket_dev, int bar_num)
>>  	const struct gasket_driver_desc *driver_desc =
>>  		internal_desc->driver_desc;
>>  	ulong desc_bytes = driver_desc->bar_descriptions[bar_num].size;
>                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>Get rid of this as well (below).
>
>> +	struct gasket_bar_data *data;
>>  	int ret;
>>  
>>  	if (desc_bytes == 0)
>> @@ -270,31 +271,32 @@ static int gasket_map_pci_bar(struct gasket_dev *gasket_dev, int bar_num)
>>  		/* not PCI: skip this entry */
>>  		return 0;
>>  	}
>> +
>> +	data = &gasket_dev->bar_data[bar_num];
>
>It would be better to do this in the declaration block so you can change
>the earlier two uses in this function:
>
>+	struct gasket_bar_data *data = &gasket_dev->bar_data[bar_num];
>-	ulong desc_bytes = driver_desc->bar_descriptions[bar_num].size;
>+	ulong desc_bytes = data->size;
>
>...
>
>-	if (driver_desc->bar_descriptions[bar_num].type != PCI_BAR) {
>+	if (data->type != PCI_BAR) {
>
>regards,
>dan carpenter

This issue has been resolved in  https://lore.kernel.org/lkml/20200618140327.GS4151@kadam/

Zhixu