linux-kernel - Re: [PATCH v5 1/5] firmware: document user mode helper lock usage

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Message-ID: <CACVXFVMNAg7pPPx=b=pus8d-xDdbrhe=GqYtm_kyA8rnNmji8A@mail.gmail.com>
Date:   Thu, 22 Sep 2016 10:36:39 +0800
From:   Ming Lei <ming.lei@...onical.com>
To:     "Luis R. Rodriguez" <mcgrof@...nel.org>
Cc:     Daniel Wagner <wagi@...om.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "rafael.j.wysocki" <rafael.j.wysocki@...el.com>,
        Daniel Vetter <daniel.vetter@...el.com>,
        Takashi Iwai <tiwai@...e.com>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Arend van Spriel <arend.vanspriel@...adcom.com>,
        Daniel Wagner <daniel.wagner@...-carit.de>
Subject: Re: [PATCH v5 1/5] firmware: document user mode helper lock usage

On Sat, Sep 10, 2016 at 6:14 AM, Luis R. Rodriguez <mcgrof@...nel.org> wrote:
> On Fri, Sep 09, 2016 at 02:12:20PM +0200, Daniel Wagner wrote:
>> From: Daniel Wagner <daniel.wagner@...-carit.de>
>>
>> The lock is also used to generate warnings when a direct
>> firmware load is requested too early.
>
> I've determined the firmware cache lets us bail out of this
> consideration now. If Ming agrees with the logic we don't need this
> patch and you can continue as you had intended. Sorry for the trouble.

IMO it is helpful to add comment about using the lock for direct loading,
and we can sort it out in future if anyone want to improve it.

So for this patch, I am fine.

Thanks,