linux-kernel - Re: [PATCHv2 0/3] Enable no_cache flag to driver

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Message-ID: <d92603b1-02bc-9aa6-7cb0-c96514a7c6d7@linux.intel.com>
Date:   Fri, 26 May 2017 16:05:43 -0500
From:   "Li, Yi" <yi1.li@...ux.intel.com>
To:     "Luis R. Rodriguez" <mcgrof@...nel.org>
Cc:     atull@...nel.org, Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Daniel Wagner <wagi@...om.org>,
        David Woodhouse <dwmw2@...radead.org>, rafal@...ecki.pl,
        Arend Van Spriel <arend.vanspriel@...adcom.com>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Moritz Fischer <moritz.fischer@...us.com>,
        Petr Mladek <pmladek@...e.com>,
        Johannes Berg <johannes.berg@...el.com>,
        Emmanuel Grumbach <emmanuel.grumbach@...el.com>,
        Luciano Coelho <luciano.coelho@...el.com>,
        Kalle Valo <kvalo@...eaurora.org>,
        Andy Lutomirski <luto@...nel.org>,
        "AKASHI, Takahiro" <takahiro.akashi@...aro.org>,
        David Howells <dhowells@...hat.com>,
        Peter Jones <pjones@...hat.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        linux-fpga@...r.kernel.org
Subject: Re: [PATCHv2 0/3] Enable no_cache flag to driver_data

hi Luis


On 5/25/2017 5:43 PM, Luis R. Rodriguez wrote:
> On Thu, May 25, 2017 at 3:30 PM, Li, Yi <yi1.li@...ux.intel.com> wrote:
>> This patch is for "disabling the cache" for streaming and iwlwifi case,
>> adding the test to verify the cache function should be a separate patch,
>> right? I can look more into the cache part.
> How can we know cache was disabled without first testing what having
> cache enabled could be like ?

Understand the point, adding the test for cache enabled still cannot 
cover the disable cache part though:-). Please give me couple days to 
think about it. Maybe will first have a new patch to test the cache 
part, likely through the debugfs as you suggested; then amend this 
series to complete the cache disabling test part. Thanks for the insight.

Yi
>
>    Luis
> --
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