linux-kernel - Re: [PATCH v3 19/20] firmware: add request_firmware

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Date:   Wed, 21 Mar 2018 11:04:22 +0100
From:   Greg KH <gregkh@...uxfoundation.org>
To:     "Luis R. Rodriguez" <mcgrof@...nel.org>
Cc:     Linus Torvalds <torvalds@...ux-foundation.org>,
        Julia Lawall <julia.lawall@...6.fr>,
        Nicolas Palix <nicolas.palix@...g.fr>,
        Joe Perches <joe@...ches.com>, Takashi Iwai <tiwai@...e.de>,
        Thomas Gleixner <tglx@...utronix.de>,
        Jiri Kosina <jikos@...nel.org>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        akpm@...ux-foundation.org, cantabile.desu@...il.com,
        kubakici@...pl, linux-wireless@...r.kernel.org,
        keescook@...omium.org, shuah@...nel.org, mfuzzey@...keon.com,
        zohar@...ux.vnet.ibm.com, dhowells@...hat.com,
        pali.rohar@...il.com, arend.vanspriel@...adcom.com,
        zajec5@...il.com, nbroeking@...com, markivx@...eaurora.org,
        broonie@...nel.org, dmitry.torokhov@...il.com, dwmw2@...radead.org,
        Abhay_Salunke@...l.com, bjorn.andersson@...aro.org,
        jewalt@...innovations.com, oneukum@...e.com, ast@...com,
        andresx7@...il.com, linux-kernel@...r.kernel.org,
        linux-fsdevel@...r.kernel.org,
        Konstantin Ryabitsev <konstantin@...uxfoundation.org>
Subject: Re: [PATCH v3 19/20] firmware: add request_firmware_cache() to help
 with cache on reboot

On Tue, Mar 20, 2018 at 06:24:09PM +0000, Luis R. Rodriguez wrote:
> On Tue, Mar 20, 2018 at 06:38:01PM +0100, Greg KH wrote:
> > On Tue, Mar 20, 2018 at 05:34:09PM +0000, Luis R. Rodriguez wrote:
> > > On Tue, Mar 20, 2018 at 09:30:55AM +0100, Greg KH wrote:
> > > > On Sat, Mar 10, 2018 at 06:15:00AM -0800, Luis R. Rodriguez wrote:
> > > > > +EXPORT_SYMBOL_GPL(request_firmware_cache);
> > > > 
> > > > I know you are just following the existing naming scheme, but please
> > > > let's not continue the problem here.  Can you prefix all of the firmware
> > > > exported symbols with "firmware_", and then the verb.  So this would be
> > > > "firmware_request_cache",
> > > 
> > > Sure.
> > > 
> > > >  and the older function would be
> > > > "firmware_request_direct".
> > > 
> > > Sure, so you want to also rename the old exported symbols, and add a macro
> > > or static inline to enable use of the older names?
> > 
> > Renaming is best, let's not keep them around for no good reason :)
> 
> Sure thing, I'll rename the old firmware calls.

Ah, in looking at this closer, that might take a bit of time, as there
are a _lot_ of callers of request_firmware().  So maybe a macro/wrapper
is good for that one so we can propagate the changes through the
different subsystems and do this over a few kernel releases.

But for anything new, let's get it right the first time :)

thanks,

greg k-h