linux-kernel - Re: [PATCH 1/2] PTP: introduce new versions of IOCTLs

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Message-ID: <87k1axwvei.fsf@gmail.com>
Date:   Wed, 28 Aug 2019 11:23:33 +0300
From:   Felipe Balbi <felipe.balbi@...ux.intel.com>
To:     Joe Perches <joe@...ches.com>,
        Richard Cochran <richardcochran@...il.com>
Cc:     Christopher S Hall <christopher.s.hall@...el.com>,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] PTP: introduce new versions of IOCTLs


Hi,

Joe Perches <joe@...ches.com> writes:

> On Mon, 2019-08-19 at 08:43 -0700, Richard Cochran wrote:
>> On Sun, Aug 18, 2019 at 03:07:18PM -0700, Joe Perches wrote:
>> > Also the original patch deletes 2 case entries for
>> > PTP_PIN_GETFUNC and PTP_PIN_SETFUNC and converts them to
>> > PTP_PIN_GETFUNC2 and PTP_PIN_SETFUNC2 but still uses tests
>> > for the deleted case label entries making part of the case
>> > code block unreachable.
>> > 
>> > That's at least a defect:
>> > 
>> > -	case PTP_PIN_GETFUNC:
>> > +	case PTP_PIN_GETFUNC2:
>> > 
>> > and
>> >  
>> > -	case PTP_PIN_SETFUNC:
>> > +	case PTP_PIN_SETFUNC2:
>> 
>> Good catch.  Felipe, please fix that!
>> 
>> (Regarding Joe's memset suggestion, I'll leave that to your discretion.)
>
> Not just how declarations are done or memset.
>
> Minimizing unnecessary stack consumption is generally good.

Originally I had memset only on the three cases where they were
needed. Richard, which do you prefer? I don't mind changing it back.

-- 
balbi

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