linux-kernel - Re: [PATCH v2 07/11] firmware: split firmware fallback functionality into its own file

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Date:   Thu, 8 Mar 2018 03:44:38 +0000
From:   "Luis R. Rodriguez" <mcgrof@...nel.org>
To:     Greg KH <gregkh@...uxfoundation.org>
Cc:     Kees Cook <keescook@...omium.org>,
        "Luis R. Rodriguez" <mcgrof@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Shuah Khan <shuah@...nel.org>,
        Martin Fuzzey <mfuzzey@...keon.com>,
        Mimi Zohar <zohar@...ux.vnet.ibm.com>,
        David Howells <dhowells@...hat.com>, pali.rohar@...il.com,
        Takashi Iwai <tiwai@...e.de>, arend.vanspriel@...adcom.com,
        Rafał Miłecki <zajec5@...il.com>,
        nbroeking@...com, Vikram Mulukutla <markivx@...eaurora.org>,
        stephen.boyd@...aro.org, Mark Brown <broonie@...nel.org>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        David Woodhouse <dwmw2@...radead.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Abhay_Salunke@...l.com, bjorn.andersson@...aro.org,
        jewalt@...innovations.com, LKML <linux-kernel@...r.kernel.org>,
        "linux-fsdevel@...r.kernel.org" <linux-fsdevel@...r.kernel.org>
Subject: Re: [PATCH v2 07/11] firmware: split firmware fallback functionality
 into its own file

On Wed, Feb 28, 2018 at 08:11:31AM +0100, Greg KH wrote:
> On Tue, Feb 27, 2018 at 09:33:28PM -0800, Kees Cook wrote:
> > On Tue, Feb 27, 2018 at 5:28 PM, Luis R. Rodriguez <mcgrof@...nel.org> wrote:
> > > On Tue, Feb 27, 2018 at 03:14:53PM -0800, Kees Cook wrote:
> > >> On Fri, Feb 23, 2018 at 6:46 PM, Luis R. Rodriguez <mcgrof@...nel.org> wrote:
> > >> > The firmware fallback code is optional. Split that code out to help
> > >> > distinguish the fallback functionlity from othere core firmware loader
> > >> > features. This should make it easier to maintain and review code
> > >> > changes.
> > >> >
> > >> > The reason for keeping the configuration onto a table which is built-in
> > >> > if you enable firmware loading is so that we can later enable the kernel
> > >> > after subsequent patches to tweak this configuration, even if the
> > >> > firmware loader is modular.
> > >> >
> > >> > This introduces no functional changes.
> > >> >
> > >> > Signed-off-by: Luis R. Rodriguez <mcgrof@...nel.org>
> > >> > ---
> > >> >  drivers/base/Makefile                  |   4 +-
> > >> >  drivers/base/firmware_fallback.c       | 661 +++++++++++++++++++++++++++
> > >> >  drivers/base/firmware_fallback.h       |  61 +++
> > >> >  drivers/base/firmware_fallback_table.c |  29 ++
> > >> >  drivers/base/firmware_loader.c         | 803 +--------------------------------
> > >> >  drivers/base/firmware_loader.h         | 115 +++++
> > >> >  6 files changed, 874 insertions(+), 799 deletions(-)
> > >> >  create mode 100644 drivers/base/firmware_fallback.c
> > >> >  create mode 100644 drivers/base/firmware_fallback.h
> > >> >  create mode 100644 drivers/base/firmware_fallback_table.c
> > >> >  create mode 100644 drivers/base/firmware_loader.h
> > >>
> > >> Does it make sense to have a separate subdirectory for firmware
> > >> instead? I did this _ stuff with lkdtm and have regretted it. (I'm
> > >> likely going to make a subdirectory for it this cycle...)
> > >
> > > Sure, the only eyesore is that drivers/base/firmware.c what is that for?
> > >
> > > drivers/base/firmware_loader/ ok?
> > 
> > Yeah? Seems fine to me. Greg, do you have thoughts on this?
> 
> I don't care :)

Alright, this was much easier done as a separate patch after.

  Luis