linux-kernel - RE: [PATCH v2 3/3] mmc: core: Add discard support to sd

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Date:   Thu, 14 Feb 2019 11:12:52 +0000
From:   Avri Altman <Avri.Altman@....com>
To:     Ulf Hansson <ulf.hansson@...aro.org>
CC:     "linux-mmc@...r.kernel.org" <linux-mmc@...r.kernel.org>,
        Wolfram Sang <wsa+renesas@...g-engineering.com>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Jaehoon Chung <jh80.chung@...sung.com>,
        Shawn Lin <shawn.lin@...k-chips.com>,
        Avi Shchislowski <Avi.Shchislowski@....com>,
        Alex Lemberg <Alex.Lemberg@....com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH v2 3/3] mmc: core: Add discard support to sd

> 
> On Wed, 6 Feb 2019 at 12:29, Avri Altman <avri.altman@....com> wrote:
> >
> > SD spec v5.1 adds discard support. The flows and commands are similar to
> > mmc, so just set the discard arg in CMD38.
> >
> > Actually, there is no need to check for the spec version like we are
> > doing, as it is assured that the reserved bits in earlier versions are
> > null. Do that anyway to document the spec version that introduce it.
> >
> > Signed-off-by: Avri Altman <avri.altman@....com>
> 
> Deferring this a bit, need some more time to review.
A kind reminder.
Thanks,
Avri