Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
Date:   Tue, 24 Jul 2018 13:43:34 +0200
From:   Christoph Hellwig <hch@lst.de>
To:     Geert Uytterhoeven <geert@linux-m68k.org>
Cc:     Jacopo Mondi <jacopo@jmondi.org>, Christoph Hellwig <hch@lst.de>,
        Yoshinori Sato <ysato@users.sourceforge.jp>,
        Rich Felker <dalias@libc.org>,
        Jacopo Mondi <jacopo+renesas@jmondi.org>,
        Thomas Petazzoni <thomas.petazzoni@free-electrons.com>,
        Linux-sh list <linux-sh@vger.kernel.org>,
        Linux IOMMU <iommu@lists.linux-foundation.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        lkp@intel.com
Subject: Re: [PATCH 4/5] sh: split arch/sh/mm/consistent.c
Message-ID: <20180724114334.GA21973@lst.de>
References: <20180719130516.1989-1-hch@lst.de> <20180719130516.1989-5-hch@lst.de> <20180723084207.GI6784@w540> <CAMuHMdX=b0iAnDw1=85MXNBSMD=MxZb27QrO3rEWHYq0vB+3ow@mail.gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <CAMuHMdX=b0iAnDw1=85MXNBSMD=MxZb27QrO3rEWHYq0vB+3ow@mail.gmail.com>
User-Agent: Mutt/1.5.17 (2007-11-01)
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

On Mon, Jul 23, 2018 at 10:49:39AM +0200, Geert Uytterhoeven wrote:
> > > +     *dma_handle = virt_to_phys(ret);
> > > +     if (!WARN_ON(!dev))
> > > +             *dma_handle - PFN_PHYS(dev->dma_pfn_offset);
> > vs
> > > -     *dma_handle = virt_to_phys(ret);
> > > -     if (!WARN_ON(!dev))
> > > -             *dma_handle -= PFN_PHYS(dev->dma_pfn_offset);
> 
> Doesn't look right to me, neither.
> 
> No complaints for 0day? My gcc says:
> 
>     error: statement with no effect [-Werror=unused-value]

For some reason 0day has failed me multiple times for sh.  Does the
0day bot even cover sh at all?