netdev - Re: [v5,1/5] soc: qcom: smem_state: Fix include for ERR

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Message-ID: <87r35srm0c.fsf@kamboji.qca.qualcomm.com>
Date:   Thu, 1 Dec 2016 10:17:56 +0000
From:   "Valo, Kalle" <kvalo@....qualcomm.com>
To:     Bjorn Andersson <bjorn.andersson@...aro.org>
CC:     "k.eugene.e@...il.com" <k.eugene.e@...il.com>,
        Andy Gross <andy.gross@...aro.org>,
        "wcn36xx@...ts.infradead.org" <wcn36xx@...ts.infradead.org>,
        "linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-arm-msm@...r.kernel.org" <linux-arm-msm@...r.kernel.org>
Subject: Re: [v5,1/5] soc: qcom: smem_state: Fix include for ERR_PTR()

Kalle Valo <kvalo@....qualcomm.com> writes:

> Kalle Valo <kvalo@....qualcomm.com> writes:
>
>> "Valo, Kalle" <kvalo@....qualcomm.com> writes:
>>
>>> Bjorn Andersson <bjorn.andersson@...aro.org> writes:
>>>
>>>> On Wed 16 Nov 10:49 PST 2016, Kalle Valo wrote:
>>>>
>>>>> Bjorn Andersson <bjorn.andersson@...aro.org> wrote:
>>>>> > The correct include file for getting errno constants and ERR_PTR() is
>>>>> > linux/err.h, rather than linux/errno.h, so fix the include.
>>>>> > 
>>>>> > Fixes: e8b123e60084 ("soc: qcom: smem_state: Add stubs for disabled smem_state")
>>>>> > Acked-by: Andy Gross <andy.gross@...aro.org>
>>>>> > Signed-off-by: Bjorn Andersson <bjorn.andersson@...aro.org>
>>>>> 
>>>>> For some reason this fails to compile now. Can you take a look, please?
>>>>> 
>>>>> ERROR: "qcom_wcnss_open_channel" [drivers/net/wireless/ath/wcn36xx/wcn36xx.ko] undefined!
>>>>> make[1]: *** [__modpost] Error 1
>>>>> make: *** [modules] Error 2
>>>>> 
>>>>> 5 patches set to Changes Requested.
>>>>> 
>>>>> 9429045 [v5,1/5] soc: qcom: smem_state: Fix include for ERR_PTR()
>>>>> 9429047 [v5,2/5] wcn36xx: Transition driver to SMD client
>>>>
>>>> This patch was updated with the necessary depends in Kconfig to catch
>>>> this exact issue and when I pull in your .config (which has QCOM_SMD=n,
>>>> QCOM_WCNSS_CTRL=n and WCN36XX=y) I can build this just fine.
>>>>
>>>> I've tested the various combinations and it seems to work fine. Do you
>>>> have any other patches in your tree?
>>>
>>> This was with the pending branch of my ath.git tree. There are other
>>> wireless patches (ath10k etc) but I would guess they don't affect here.
>>>
>>>> Any stale objects?
>>>
>>> Not sure what you mean with this question, but I didn't run 'make clean'
>>> if that's what you are asking.
>>>
>>>> Would you mind retesting this, before I invest more time in trying to
>>>> reproduce the issue you're seeing?
>>>
>>> Sure, I'll take a look but that might take few days.
>>
>> I didn't find enough time to look at this in detail. I applied this to
>> my ath.git pending branch, let's see what the kbuild bot finds.
>
> It found the same problem. Interestingly I'm also building x86 with 32
> bit, maybe it's related?
>
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git pending
> head:   1ea16a1c457939b4564643f7637d5cc639a8d3b7
> commit: 5eb09c672b01460804fd49b1c9cc7d1072a102f0 [96/99] wcn36xx: Transition driver to SMD client
> config: i386-allmodconfig (attached as .config)
> compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
> reproduce:
>         git checkout 5eb09c672b01460804fd49b1c9cc7d1072a102f0
>         # save the attached .config to linux build tree
>         make ARCH=i386 
>
> All errors (new ones prefixed by >>):
>
>>> ERROR: "qcom_wcnss_open_channel" [drivers/net/wireless/ath/wcn36xx/wcn36xx.ko] undefined!

Bjorn mentioned me on IRC that this is because of a missing commit in my
tree:

daa6e41ce2b5 soc: qcom: wcnss_ctrl: Stub wcnss_ctrl API

When I pull the tag below (which contains the above commit) wcn36xx
builds fine for me:

git://git.kernel.org/pub/scm/linux/kernel/git/agross/linux.git tags/qcom-drivers-for-4.10

Andy, is it ok if I pull your tag also to my ath.git tree to solve the
wcn36xx build problem? My trees go to Linus via net-next and I don't
know when exactly Dave would send a pull request to Linus, before or
after the arm trees, but as the tag seems to contain only few patches I
hope it doesn't matter.

-- 
Kalle Valo