linux-kernel - Re: [PATCH 3/3] staging: lustre: Less function calls in class_register

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Message-ID: <20151126165331.GA7882@kroah.com>
Date:	Thu, 26 Nov 2015 08:53:31 -0800
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	SF Markus Elfring <elfring@...rs.sourceforge.net>
Cc:	devel@...verdev.osuosl.org,
	Andreas Dilger <andreas.dilger@...el.com>,
	kernel-janitors@...r.kernel.org,
	LKML <linux-kernel@...r.kernel.org>,
	Oleg Drokin <oleg.drokin@...el.com>,
	Julia Lawall <julia.lawall@...6.fr>,
	lustre-devel@...ts.lustre.org
Subject: Re: [PATCH 3/3] staging: lustre: Less function calls in
 class_register_type() after error detection

On Thu, Nov 26, 2015 at 08:08:28AM +0100, SF Markus Elfring wrote:
> Am 25.11.2015 um 17:39 schrieb Greg Kroah-Hartman:
> > On Thu, Nov 05, 2015 at 01:20:33PM +0100, SF Markus Elfring wrote:
> >> From: Markus Elfring <elfring@...rs.sourceforge.net>
> >> Date: Thu, 5 Nov 2015 12:48:58 +0100
> >>
> >> The functions "kfree" and "kobject_put" were called in a few cases by the
> >> function "class_register_type" during error handling even if the passed
> >> variable contained a null pointer.
> >>
> >> This implementation detail could be improved by the adjustment of
> >> jump targets.
> >>
> >> Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
> >> ---
> >>  drivers/staging/lustre/lustre/obdclass/genops.c | 26 +++++++++++++++----------
> >>  1 file changed, 16 insertions(+), 10 deletions(-)
> > 
> > Does not apply to my staging-next branch :(
> 
> I get also a result like the following together with the software "Linux next-20151126".   ;-)
> 
> elfring@...ne:~/Projekte/Linux/next-patched> LANG=C git apply ~/Projekte/Bau/Linux/scripts/Coccinelle/deletions1/next/20151102/Flicken/0003-staging-lustre-Less-function-calls-in-class_register.patch
> error: patch failed: drivers/staging/lustre/lustre/obdclass/genops.c:214
> error: drivers/staging/lustre/lustre/obdclass/genops.c: patch does not apply
> 
> 
> Do you try this update suggestion out without integrating the corresponding previous
> update suggestion "Delete unnecessary checks before two function calls"
> where I proposed to remove extra checks before a few calls of the function "kobject_put"
> (which seems to matter for the patch hunk in the shown error message)?
> https://lkml.org/lkml/2015/11/5/276
> https://www.mail-archive.com/linux-kernel@vger.kernel.org/msg1013635.html

I guess so, I don't remember, I don't see any patches from you earlier
in my "todo" mbox.

> Would you like to reject the first update step from this patch series
> so that I need to adapt my approach to your software design decision?

I have no idea what you are talking about.  I have no recolection of
previous patches or conversations about your patches.

greg k-h
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