linux-kernel - Re: [PATCH] kbuild: disable -Wmissing-field-initializers for W=1

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Date:	Tue, 24 Jan 2012 05:10:14 +0200
From:	"Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>
To:	Michal Marek <mmarek@...e.cz>
Cc:	linux-kbuild@...r.kernel.org,
	Artem Bityutskiy <artem.bityutskiy@...ux.intel.com>,
	Jacob Pan <jacob.jun.pan@...ux.intel.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] kbuild: disable -Wmissing-field-initializers for W=1

On Mon, Jan 23, 2012 at 10:18:34PM +0100, Michal Marek wrote:
> On Mon, Jan 23, 2012 at 05:54:10AM +0200, Kirill A. Shutemov wrote:
> > -Wmissing-field-initializers is too noisy to be useful on W=1. Let's
> > move it to W=2.
> > 
> > Signed-off-by: Kirill A. Shutemov <kirill.shutemov@...ux.intel.com>
> > ---
> >  scripts/Makefile.build |    3 ++-
> >  1 files changed, 2 insertions(+), 1 deletions(-)
> > 
> > diff --git a/scripts/Makefile.build b/scripts/Makefile.build
> > index d2b366c..1535a2f 100644
> > --- a/scripts/Makefile.build
> > +++ b/scripts/Makefile.build
> > @@ -62,7 +62,7 @@ endif
> >  ifdef KBUILD_ENABLE_EXTRA_GCC_CHECKS
> >  warning-  := $(empty)
> >  
> > -warning-1 := -Wextra -Wunused -Wno-unused-parameter
> > +warning-1 := -Wextra -Wunused -Wno-unused-parameter -Wno-missing-field-initializers
> 
> I would use $(call cc-disable-warning, missing-field-initializers), so
> that W=1 has a chance of working with gcc 3.x.

Something like this?

---

From 9ee1c7006d14efddcb7cd52053b97aa39edf6ec3 Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>
Date: Mon, 23 Jan 2012 04:59:28 +0200
Subject: [PATCH] kbuild: disable -Wmissing-field-initializers for W=1

-Wmissing-field-initializers is too noisy to be useful on W=1. Let's
move it to W=2.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@...ux.intel.com>
---
 scripts/Makefile.build |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index d2b366c..ff1720d 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -69,6 +69,7 @@ warning-1 += -Wmissing-prototypes
 warning-1 += -Wold-style-definition
 warning-1 += $(call cc-option, -Wmissing-include-dirs)
 warning-1 += $(call cc-option, -Wunused-but-set-variable)
+warning-1 += $(call cc-disable-warning, missing-field-initializers)
 
 warning-2 := -Waggregate-return
 warning-2 += -Wcast-align
@@ -76,6 +77,7 @@ warning-2 += -Wdisabled-optimization
 warning-2 += -Wnested-externs
 warning-2 += -Wshadow
 warning-2 += $(call cc-option, -Wlogical-op)
+warning-2 += $(call cc-option, -Wmissing-field-initializers)
 
 warning-3 := -Wbad-function-cast
 warning-3 += -Wcast-qual
-- 
1.7.8.3


-- 
 Kirill A. Shutemov

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