linux-kernel - Re: [PATCH RFC 3/5] Add KSZ8795 switch driver

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <20171001072151.GA14600@amd>
Date:   Sun, 1 Oct 2017 09:21:51 +0200
From:   Pavel Machek <pavel@....cz>
To:     Tristram.Ha@...rochip.com
Cc:     andrew@...n.ch, muvarov@...il.com, nathan.leigh.conrad@...il.com,
        vivien.didelot@...oirfairelinux.com, f.fainelli@...il.com,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        Woojung.Huh@...rochip.com
Subject: Re: [PATCH RFC 3/5] Add KSZ8795 switch driver

On Fri 2017-09-29 18:45:19, Tristram.Ha@...rochip.com wrote:
> > > > > > Similar code will be needed by other drivers, right?
> > > > >
> > > > > Although KSZ8795 and KSZ8895 may use the same code, the other
> > > > > chips will have different code.
> > > >
> > > > Ok, please make sure code is shared between these two.
> > >
> > > The exact function probably cannot be shared between KSZ8795
> > > and KSZ8895 drivers because although the register constants look
> > > the same but their exact locations are different in the 2 chips.
> > 
> > Put the code into header as static inline and include it from both
> > places?
> 
> Although KSZ8795 and KSZ8895 share the same code when simulating
> the PHY register access, even though the exact registers are not the
> same, this code needs a little modification for another chip.  It also looks
> too large to put in a header.

I believe putting it into a header is prefferable to having two (or
three) copies of the code. If it needs small changes, you can
introduce if () ..., gcc can probably optimize it out.

Thanks,
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

Download attachment "signature.asc" of type "application/pgp-signature" (182 bytes)