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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Arnd Bergmann <arnd@arndb.de>
Cc: "Dilger, Andreas" <andreas.dilger@intel.com>,
	"Drokin, Oleg" <oleg.drokin@intel.com>,
	James Simmons <jsimmons@infradead.org>,
	"Eremin, Dmitry" <dmitry.eremin@intel.com>,
	Lustre Development List <lustre-devel@lists.lustre.org>,
	"devel@driverdev.osuosl.org" <devel@driverdev.osuosl.org>,
	LKML <linux-kernel@vger.kernel.org>
Subject: [lustre-devel] [PATCH] staging: lustre: shut up clang warnings on CLASSERT()
Date: Thu, 2 Feb 2017 11:43:57 +0100	[thread overview]
Message-ID: <20170202104357.GB22904@kroah.com> (raw)
In-Reply-To: <CAK8P3a1oT+yp_kP-faQMdVun7ny9gfSpby3Ae0xmEpzmuGEJCA@mail.gmail.com>

On Thu, Feb 02, 2017 at 11:40:32AM +0100, Arnd Bergmann wrote:
> On Thu, Feb 2, 2017 at 10:54 AM, Greg Kroah-Hartman
> <gregkh@linuxfoundation.org> wrote:
> b/drivers/staging/lustre/include/linux/libcfs/libcfs_private.h
> >> > index aab15d8112a4..2d5435029185 100644
> >> > --- a/drivers/staging/lustre/include/linux/libcfs/libcfs_private.h
> >> > +++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_private.h
> >> > @@ -291,7 +291,7 @@ do {                                                        \
> >> >  *       value  after  conversion...
> >> >  *
> >> >  */
> >> > -#define CLASSERT(cond) do {switch (42) {case (cond): case 0: break; } } while (0)
> >> > +#define CLASSERT(cond) do {switch (42) {case (cond): case 0: default: break; } } while (0)
> >
> > Ugh, why not just use the in-kernel ASSERT macro instead?
> 
> We don't have one ;-)

Oh nice!

> I've done a semi-automated patch to replace CLASSERT() with the respective
> BUILD_BUG_ON() now, but that patch is quite large.

Should be easy to script, I missed that this was a build-time check.
Heck, I'll take a script to do this, or I can just do it in my end.

thanks,

greg k-h

WARNING: multiple messages have this Message-ID (diff)
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Arnd Bergmann <arnd@arndb.de>
Cc: "Dilger, Andreas" <andreas.dilger@intel.com>,
	"Drokin, Oleg" <oleg.drokin@intel.com>,
	James Simmons <jsimmons@infradead.org>,
	"Eremin, Dmitry" <dmitry.eremin@intel.com>,
	Lustre Development List <lustre-devel@lists.lustre.org>,
	"devel@driverdev.osuosl.org" <devel@driverdev.osuosl.org>,
	LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] staging: lustre: shut up clang warnings on CLASSERT()
Date: Thu, 2 Feb 2017 11:43:57 +0100	[thread overview]
Message-ID: <20170202104357.GB22904@kroah.com> (raw)
In-Reply-To: <CAK8P3a1oT+yp_kP-faQMdVun7ny9gfSpby3Ae0xmEpzmuGEJCA@mail.gmail.com>

On Thu, Feb 02, 2017 at 11:40:32AM +0100, Arnd Bergmann wrote:
> On Thu, Feb 2, 2017 at 10:54 AM, Greg Kroah-Hartman
> <gregkh@linuxfoundation.org> wrote:
> b/drivers/staging/lustre/include/linux/libcfs/libcfs_private.h
> >> > index aab15d8112a4..2d5435029185 100644
> >> > --- a/drivers/staging/lustre/include/linux/libcfs/libcfs_private.h
> >> > +++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_private.h
> >> > @@ -291,7 +291,7 @@ do {                                                        \
> >> >  *       value  after  conversion...
> >> >  *
> >> >  */
> >> > -#define CLASSERT(cond) do {switch (42) {case (cond): case 0: break; } } while (0)
> >> > +#define CLASSERT(cond) do {switch (42) {case (cond): case 0: default: break; } } while (0)
> >
> > Ugh, why not just use the in-kernel ASSERT macro instead?
> 
> We don't have one ;-)

Oh nice!

> I've done a semi-automated patch to replace CLASSERT() with the respective
> BUILD_BUG_ON() now, but that patch is quite large.

Should be easy to script, I missed that this was a build-time check.
Heck, I'll take a script to do this, or I can just do it in my end.

thanks,

greg k-h

  reply	other threads:[~2017-02-02 10:43 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-02-01 16:52 [lustre-devel] [PATCH] staging: lustre: shut up clang warnings on CLASSERT() Arnd Bergmann
2017-02-01 16:52 ` Arnd Bergmann
2017-02-02  7:50 ` [lustre-devel] " Dilger, Andreas
2017-02-02  7:50   ` Dilger, Andreas
2017-02-02  9:54   ` [lustre-devel] " Greg Kroah-Hartman
2017-02-02  9:54     ` Greg Kroah-Hartman
2017-02-02 10:40     ` [lustre-devel] " Arnd Bergmann
2017-02-02 10:40       ` Arnd Bergmann
2017-02-02 10:43       ` Greg Kroah-Hartman [this message]
2017-02-02 10:43         ` Greg Kroah-Hartman
2017-02-02 11:22         ` [lustre-devel] " Arnd Bergmann
2017-02-02 11:22           ` Arnd Bergmann

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