linux-kernel - Re: [PATCH 0/7] Address most issues when building with W=1

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Message-ID: <20190913150512.6c4e4d87@coco.lan>
Date:   Fri, 13 Sep 2019 15:05:12 -0300
From:   Mauro Carvalho Chehab <mchehab+samsung@...nel.org>
To:     Borislav Petkov <bp@...en8.de>
Cc:     Linux Edac Mailing List <linux-edac@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Tony Luck <tony.luck@...el.com>,
        Qiuxu Zhuo <qiuxu.zhuo@...el.com>,
        Robert Richter <rrichter@...vell.com>,
        James Morse <james.morse@....com>,
        Khuong Dinh <khuong@...amperecomputing.com>
Subject: Re: [PATCH 0/7] Address most issues when building with W=1

Em Fri, 13 Sep 2019 19:53:20 +0200
Borislav Petkov <bp@...en8.de> escreveu:

> On Fri, Sep 13, 2019 at 11:50:25AM -0300, Mauro Carvalho Chehab wrote:
> > There is a recent discussion at KS ML with regards to use W=1 as default.
> > 
> > No idea if this will happen or not, but it doesn't hurt cleaning up W=1
> > warnings from the EDAC subsystem, specially since it helps to cleanup
> > a few things.
> > 
> > This patch series addresses most of such warnings.  After this series,
> > there will be just two W=1 warnings:
> > 
> > 1) i5100 EDAC driver:
> > 
> > 	drivers/edac/i5100_edac.c: In function ‘i5100_read_log’:
> > 	drivers/edac/i5100_edac.c:487:11: warning: variable ‘ecc_loc’ set but not used [-Wunused-but-set-variable]
> > 	  487 |  unsigned ecc_loc = 0;
> > 	      |           ^~~~~~~
> > 
> > 
> >    The ecc_loc contents is filled from MC data, but it is not used anywere.
> >    The i5100 MC is very old: the affected code was added in 2008. It should
> >    probably be safe to just drop the corresponding data, but, as it may
> >    contain some relevant info, I was a little reticent of doing that.
> > 
> > 2) Xgene EDAC driver:
> > 
> > 	drivers/edac/xgene_edac.c: In function ‘xgene_edac_rb_report’:
> > 	drivers/edac/xgene_edac.c:1486:7: warning: variable ‘address’ set but not used [-Wunused-but-set-variable]
> > 	 1486 |   u32 address;
> > 	      |       ^~~~~~~
> > 
> >    I suspect that the content of the address field should actually be used on
> >    at least some of the logs.  
> 
> + Khuong Dinh <khuong@...amperecomputing.com> for that.

Thanks!

> 
> > I may eventually submit patches later to address the above cases, but let's
> > solve first the other cases, as they all sound trivial enough.
> > 
> > Mauro Carvalho Chehab (7):
> >   EDAC: i5100_edac: get rid of an unused var
> >   EDAC: i7300_edac: rename a kernel-doc var description
> >   EDAC: i7300_edac: fix a kernel-doc syntax
> >   EDAC: i5400_edac: print type at debug message
> >   EDAC: i5400_edac: get rid of some unused vars
> >   EDAC: sb_edac: get rid of unused vars
> >   EDAC: skx_common: get rid of unused type var
> > 
> >  drivers/edac/i5100_edac.c |  2 --
> >  drivers/edac/i5400_edac.c | 15 +++------------
> >  drivers/edac/i7300_edac.c |  4 ++--
> >  drivers/edac/sb_edac.c    | 21 ++++++++-------------
> >  drivers/edac/skx_common.c |  5 +----
> >  5 files changed, 14 insertions(+), 33 deletions(-)  
> 
> Looks ok to me at a quick glance, ACK.
> 
> I've already sent the 5.4 pull request to Linus so you could queue those
> after -rc1. It's not like they're urgent or so.

Yeah, that's my plan.

Thanks,
Mauro