From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
	id S1752061AbbJCJIg (ORCPT <rfc822;w@1wt.eu>);
	Sat, 3 Oct 2015 05:08:36 -0400
Received: from mail.skyhub.de ([78.46.96.112]:57485 "EHLO mail.skyhub.de"
	rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP
	id S1751728AbbJCJIe (ORCPT <rfc822;linux-kernel@vger.kernel.org>);
	Sat, 3 Oct 2015 05:08:34 -0400
Date: Sat, 3 Oct 2015 11:08:29 +0200
From: Borislav Petkov <bp@alien8.de>
To: Andy Lutomirski <luto@amacapital.net>
Cc: "linux-efi@vger.kernel.org" <linux-efi@vger.kernel.org>,
        Matt Fleming <matt@console-pimps.org>,
        Roy Franz <roy.franz@linaro.org>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        "Kweh, Hock Leong" <hock.leong.kweh@intel.com>,
        Ong Boon Leong <boon.leong.ong@intel.com>,
        James Bottomley <James.Bottomley@hansenpartnership.com>,
        Sam Protsenko <semen.protsenko@linaro.org>,
        Linux FS Devel <linux-fsdevel@vger.kernel.org>,
        Fleming Matt <matt.fleming@intel.com>,
        LKML <linux-kernel@vger.kernel.org>, Peter Jones <pjones@redhat.com>
Subject: Re: [PATCH v6 0/2] Enable capsule loader interface for efi firmware
 updating
Message-ID: <20151003090829.GD11942@pd.tnic>
References: <1443733554-22743-1-git-send-email-hock.leong.kweh@intel.com>
 <20151002173704.GD16538@pd.tnic>
 <CALCETrVB_QbG3Se2YHqUQx2SiZBrsNw95wRJrtLtFPJmxn_svA@mail.gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Disposition: inline
In-Reply-To: <CALCETrVB_QbG3Se2YHqUQx2SiZBrsNw95wRJrtLtFPJmxn_svA@mail.gmail.com>
User-Agent: Mutt/1.5.23 (2014-03-12)
Sender: linux-kernel-owner@vger.kernel.org
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

On Fri, Oct 02, 2015 at 09:18:05PM -0700, Andy Lutomirski wrote:
> > What does the error case look like? A standard glibc message about
> > write(2) failing?
> >
> 
> close(2), right?

I'm looking at those retvals of efi_capsule_write(). They are returned
to userspace during write(2), no?

/me has no idea how the whole plumbing actually works that's why me is
asking stupid questions.

-- 
Regards/Gruss,
    Boris.

ECO tip #101: Trim your mails when you reply.