linux-kernel - Re: [PATCH 18/18] arm64: defconfig: enable build of IPA code

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Date:   Wed, 15 May 2019 07:49:20 -0500
From:   Alex Elder <elder@...aro.org>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     David Miller <davem@...emloft.net>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Ilias Apalodimas <ilias.apalodimas@...aro.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        Andy Gross <andy.gross@...aro.org>,
        Olof Johansson <olof@...om.net>,
        Maxime Ripard <maxime.ripard@...tlin.com>,
        Simon Horman <horms+renesas@...ge.net.au>,
        Jagan Teki <jagan@...rulasolutions.com>,
        Stefan Wahren <stefan.wahren@...e.com>,
        Marc Gonzalez <marc.w.gonzalez@...e.fr>,
        Enric Balletbo i Serra <enric.balletbo@...labora.com>,
        syadagir@...eaurora.org, mjavid@...eaurora.org,
        evgreen@...omium.org, Ben Chan <benchan@...gle.com>,
        Eric Caruso <ejcaruso@...gle.com>, abhishek.esse@...il.com,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 18/18] arm64: defconfig: enable build of IPA code

On 5/15/19 3:23 AM, Arnd Bergmann wrote:
> On Sun, May 12, 2019 at 3:25 AM Alex Elder <elder@...aro.org> wrote:
> 
>> diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
>> index 2d9c39033c1a..4f4d803e563d 100644
>> --- a/arch/arm64/configs/defconfig
>> +++ b/arch/arm64/configs/defconfig
>> @@ -268,6 +268,7 @@ CONFIG_SMSC911X=y
>>  CONFIG_SNI_AVE=y
>>  CONFIG_SNI_NETSEC=y
>>  CONFIG_STMMAC_ETH=m
>> +CONFIG_IPA=y
>>  CONFIG_MDIO_BUS_MUX_MMIOREG=y
>>  CONFIG_AT803X_PHY=m
>>  CONFIG_MARVELL_PHY=m
> 
> Since the device is not needed for booting, please make this
> CONFIG_IPA=m instead to keep the kernel image a little smaller.
> 
>      Arnd
> 

Oops, yes, that was my intention but I forgot to fix that
before I sent it out.   This code works as a module, but
in order to make the whole system allow the module to be both
removed and re-inserted safely, I need some work to be done
on the modem end and that's beyond my direct control.  I have
been testing with it as a kernel built-in driver in the mean
time.

In any case, it is my intention to have it be normally built
as a module and I will ensure that when I send out future
revisions of this series.

					-Alex