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

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Message-ID: <0f1487356ae2e9ff185ede2359381630007538c7.camel@perches.com>
Date:   Mon, 19 Aug 2019 08:58:22 -0700
From:   Joe Perches <joe@...ches.com>
To:     Richard Cochran <richardcochran@...il.com>
Cc:     Felipe Balbi <felipe.balbi@...ux.intel.com>,
        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

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.