linux-kernel - Re: [PATCH] drivers:staging:gdm72xx Fix line over 80 characters

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Message-ID: <20151031184508.GB19945@gmail.com>
Date:	Sat, 31 Oct 2015 19:45:08 +0100
From:	Bogicevic Sasa <brutallesale@...il.com>
To:	Joe Perches <joe@...ches.com>
Cc:	gregkh@...uxfoundation.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drivers:staging:gdm72xx Fix line over 80 characters

On 10/31, Joe Perches wrote:
>On Sat, 2015-10-31 at 18:14 +0100, Bogicevic Sasa wrote:
>> On 10/31, Joe Perches wrote:
>> >On Sat, 2015-10-31 at 17:38 +0100, Bogicevic Sasa wrote:
>> >> This fixes line over 80 character messages from checkpatch.pl
>> >[]
>> >> diff --git a/drivers/staging/gdm72xx/gdm_qos.c b/drivers/staging/gdm72xx/gdm_qos.c
>> >[]
>> >> @@ -382,7 +382,7 @@ void gdm_recv_qos_hci_packet(void *nic_ptr, u8 *buf, int size)
>> >>
>> >>  		spin_lock_irqsave(&qcb->qos_lock, flags);
>> >>  		qcb->csr[index].sfid = sfid;
>> >> -		qcb->csr[index].classifier_rule_en = ((buf[pos++] << 8) & 0xff00);
>> >> +		qcb->csr[index].classifier_rule_en = (buf[pos++] << 8) & 0xff00;
>> >>  		qcb->csr[index].classifier_rule_en += buf[pos++];
>> >>  		if (qcb->csr[index].classifier_rule_en == 0)
>> >>  			qcb->qos_null_idx = index;
>> >
>> >If you do this one, please do all of them in the
>> >same block.
>> >
>> >		qcb->csr[index].srcport_lo = ((buf[pos++]<<8)&0xff00);
>> >		qcb->csr[index].srcport_lo += buf[pos++];
>> >		qcb->csr[index].srcport_hi = ((buf[pos++]<<8)&0xff00);
>> >		qcb->csr[index].srcport_hi += buf[pos++];
>> >		qcb->csr[index].dstport_lo = ((buf[pos++]<<8)&0xff00);
>> >		qcb->csr[index].dstport_lo += buf[pos++];
>> >		qcb->csr[index].dstport_hi = ((buf[pos++]<<8)&0xff00);
>> >
>> >It'd probably be nicer to use a temporary for
>> >qcb->csr[index] too.
>> >
>> >Also, the += is kind of odd.  These are really a
>> >le16_to_cpu conversion, so it might be nicer to use
>> >that mechanism.
>> >
>> >	csr->srcport_lo = get_unaligned_le16(&buf[pos]);
>> >	pos += 2;
>> >
>> >
>> It is not a problem to remove unnecesarry brackets but bear in mind I am
>> new to bitwise stuff.
>
>No worries, it's not that obvious.
>
>>  So how it should be, like this?
>>
>> 		qcb->csr[index].srcport_lo = get_unaligned_le16(&buf[pos]);
>> 		pos += 2;
>> 		qcb->csr[index].srcport_lo = buf[pos];
>
>No, it'd be:
>
>		csr->srcport_lo = get_unaligned_le16(&buf[pos]);
>		pos += 2;
>		csr->srcport_hi = get_unaligned_le16(&buf[pos]);
>		pos += 2;
>		csr->dstport_lo = get_unaligned_le16(&buf[pos]);
>		pos += 2;
>		csr->dstport_hi = get_unaligned_le16(&buf[pos]);
>		pos += 2;
>
>
Ah ok Ill do it like that than and resend
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