linux-kernel - Re: [PATCH v7 4/4] boot/param: add pointer to next argument to unknown parameter callback

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Date:   Thu, 24 Aug 2017 14:17:39 +0200
From:   msuchanek <msuchanek@...e.de>
To:     Michael Ellerman <mpe@...erman.id.au>
Cc:     Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Jonathan Corbet <corbet@....net>, Jessica Yu <jeyu@...nel.org>,
        Rusty Russell <rusty@...tcorp.com.au>,
        Jason Baron <jbaron@...mai.com>,
        Hari Bathini <hbathini@...ux.vnet.ibm.com>,
        Mahesh J Salgaonkar <mahesh@...ux.vnet.ibm.com>,
        Daniel Axtens <dja@...ens.net>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Thiago Jung Bauermann <bauerman@...ux.vnet.ibm.com>,
        Balbir Singh <bsingharora@...il.com>,
        Nicholas Piggin <npiggin@...il.com>,
        Michael Neuling <mikey@...ling.org>,
        "Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>,
        Christophe Leroy <christophe.leroy@....fr>,
        Scott Wood <oss@...error.net>,
        Oliver O'Halloran <oohall@...il.com>,
        David Howells <dhowells@...hat.com>,
        Sylvain 'ythier' Hitier <sylvain.hitier@...il.com>,
        Ingo Molnar <mingo@...nel.org>,
        Kees Cook <keescook@...omium.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        "Steven Rostedt\," <rostedt@...dmis.org>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        Tejun Heo <tj@...nel.org>, Lokesh Vutla <lokeshvutla@...com>,
        Baoquan He <bhe@...hat.com>,
        Ilya Matveychikov <matvejchikov@...il.com>,
        linuxppc-dev@...ts.ozlabs.org, linux-doc@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v7 4/4] boot/param: add pointer to next argument to
 unknown parameter callback

On Thu, 24 Aug 2017 21:04:51 +1000
Michael Ellerman <mpe@...erman.id.au> wrote:

> Michal Suchanek <msuchanek@...e.de> writes:
> 
> > The fadump parameter processing re-does the logic of next_arg quote
> > stripping to determine where the argument ends. Pass pointer to the
> > next argument instead to make this more robust.
> >
> > Signed-off-by: Michal Suchanek <msuchanek@...e.de>
> > ---
> >  arch/powerpc/kernel/fadump.c  | 13 +++++--------
> >  arch/powerpc/mm/hugetlbpage.c |  4 ++--
> >  include/linux/moduleparam.h   |  2 +-
> >  init/main.c                   | 12 ++++++------
> >  kernel/module.c               |  4 ++--
> >  kernel/params.c               | 19 +++++++++++--------
> >  lib/dynamic_debug.c           |  2 +-
> >  7 files changed, 28 insertions(+), 28 deletions(-)  
> 
> Can you split out a patch that adds the next argument and updates the
> callers. And then a patch for the fadump to use the new arg.
> 
> cheers

Yes, that makes sense.

Thanks

Michal