linux-kernel - Re: [EXT] Re: [PATCH v2 06/15] spi: imx: fix ERR009165

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <1556270196.9298.16.camel@nxp.com>
Date:   Fri, 26 Apr 2019 09:22:52 +0000
From:   Robin Gong <yibin.gong@....com>
To:     "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "u.kleine-koenig@...gutronix.de" <u.kleine-koenig@...gutronix.de>,
        "festevam@...il.com" <festevam@...il.com>,
        "plyatov@...il.com" <plyatov@...il.com>,
        "broonie@...nel.org" <broonie@...nel.org>,
        "dan.j.williams@...el.com" <dan.j.williams@...el.com>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "catalin.marinas@....com" <catalin.marinas@....com>,
        "will.deacon@....com" <will.deacon@....com>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>,
        "l.stach@...gutronix.de" <l.stach@...gutronix.de>,
        "s.hauer@...gutronix.de" <s.hauer@...gutronix.de>
CC:     "linux-spi@...r.kernel.org" <linux-spi@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "dmaengine@...r.kernel.org" <dmaengine@...r.kernel.org>,
        dl-linux-imx <linux-imx@....com>,
        "kernel@...gutronix.de" <kernel@...gutronix.de>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [EXT] Re: [PATCH v2 06/15] spi: imx: fix ERR009165

On 2019-04-26 at 11:07 +0200, Lucas Stach wrote:
> 
> Am Freitag, den 26.04.2019, 08:05 +0000 schrieb Robin Gong:
> >  static void mx51_setup_wml(struct spi_imx_data *spi_imx)
> >  {
> > +     u32 tx_wml = 0;
> > +
> With a wml of 0 you might set the maxburst of the TX dma channel to
> fifosize to minimize the performance impact of this workaround.
> 
> Regards,
> Lucas
Unfortunately, this is a MUST part of errata which cause performance
drop.