Message-ID: <a99d49d9-656d-6c5c-4953-6e7c56c0beba@collabora.com>
Date:   Wed, 15 Apr 2020 10:36:04 +0100
From:   Guillaume Tucker <guillaume.tucker@...labora.com>
To:     Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
Cc:     linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
        kernel@...labora.com
Subject: Re: media/master bisection: v4l2-compliance-vivid.device-presence on
 qemu_x86_64

On 15/04/2020 10:28, Guillaume Tucker wrote:
> On 14/04/2020 22:43, Guillaume Tucker wrote:
>> On 14/04/2020 22:33, Mauro Carvalho Chehab wrote:
>>> Em Tue, 14 Apr 2020 22:23:52 +0100
>>> Guillaume Tucker <guillaume.tucker@...labora.com> escreveu:
>>>
>>>> Please see the bisection report below about absence of the vivid
>>>> driver, which caused v4l2-compliance to fail to run.
>>>>
>>>> Presumably we need to update the configuration fragment used by
>>>> kernelci.org to enable platform drivers.  Until now we've been
>>>> using this:
>>>>
>>>>     CONFIG_MEDIA_SUPPORT=y
>>>>     CONFIG_MEDIA_CAMERA_SUPPORT=y
>>>>     CONFIG_VIDEO_DEV=y
>>>>     CONFIG_VIDEO_V4L2=y
>>>>     CONFIG_V4L_TEST_DRIVERS=y
>>>>     CONFIG_VIDEO_VIVID=y
>>>>     CONFIG_VIDEO_VIVID_MAX_DEVS=64
>>>>
>>>> Do we simply need to add this one in v5.7 onwards?
>>>>
>>>>     CONFIG_MEDIA_PLATFORM_SUPPORT=y
>>>
>>> No, this shouldn't be needed.
>>>
>>> Helen sent us a patch that should likely fix it:
>>>
>>> 	https://git.linuxtv.org/media_tree.git/commit/?id=860b511766a3d95308a942ac09a34e4d1839e706
>>>
>>> Could you please check if this solves the issue?
>>
>> I see, thanks.  This revision is being built and tested at the
>> moment, I'll check the results when they land in my inbox.
> 
> Helen's patch was needed, but there were still a couple of
> issues.  First we need to enable this extra option now in the
> config fragment:
> 
>     CONFIG_MEDIA_TEST_SUPPORT=y
> 
> as test_drivers/Kconfig starts with "if MEDIA_TEST_SUPPORT".

Actually, this "if" seems redundant now in test_drivers/Kconfig
with my patch to include the file conditionally...  Please let me
know if we should also drop it and I'll send a v2, or if this
should be fixed in a different way.

Guillaume

> Then this Kconfig was included when MEDIA_PLATFORM_SUPPORT was
> enabled rather than MEDIA_TEST_SUPPORT in media/Kconfig.  So I've
> just sent a patch to fix this dependency, and now it appears to
> be generating the correct config.  I did a full v4l2-compliance
> run with the vivid driver on my local setup and it all passed.
> 
> Guillaume
> 
>>>> On 14/04/2020 20:16, kernelci.org bot wrote:
>>>>> * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
>>>>> * This automated bisection report was sent to you on the basis  *
>>>>> * that you may be involved with the breaking commit it has      *
>>>>> * found.  No manual investigation has been done to verify it,   *
>>>>> * and the root cause of the problem may be somewhere else.      *
>>>>> *                                                               *
>>>>> * If you do send a fix, please include this trailer:            *
>>>>> *   Reported-by: "kernelci.org bot" <bot@...nelci.org>          *
>>>>> *                                                               *
>>>>> * Hope this helps!                                              *
>>>>> * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
>>>>>
>>>>> media/master bisection: v4l2-compliance-vivid.device-presence on qemu_x86_64
>>>>>
>>>>> Summary:
>>>>>   Start:      ba445b7ff43b3 media: dt-bindings: rockchip-vpu: Convert bindings to json-schema
>>>>>   Plain log:  https://storage.kernelci.org//media/master/v5.7-rc1-63-gba445b7ff43b/x86_64/x86_64_defconfig+virtualvideo/gcc-8/lab-collabora/v4l2-compliance-vivid-qemu_x86_64.txt
>>>>>   HTML log:   https://storage.kernelci.org//media/master/v5.7-rc1-63-gba445b7ff43b/x86_64/x86_64_defconfig+virtualvideo/gcc-8/lab-collabora/v4l2-compliance-vivid-qemu_x86_64.html
>>>>>   Result:     06b93644f4d10 media: Kconfig: add an option to filter in/out platform drivers
>>>>>
>>>>> Checks:
>>>>>   revert:     PASS
>>>>>   verify:     PASS
>>>>>
>>>>> Parameters:
>>>>>   Tree:       media
>>>>>   URL:        https://git.linuxtv.org/media_tree.git
>>>>>   Branch:     master
>>>>>   Target:     qemu_x86_64
>>>>>   CPU arch:   x86_64
>>>>>   Lab:        lab-collabora
>>>>>   Compiler:   gcc-8
>>>>>   Config:     x86_64_defconfig+virtualvideo
>>>>>   Test case:  v4l2-compliance-vivid.device-presence
>>>>>
>>>>> Breaking commit found:
>>>>>
>>>>> -------------------------------------------------------------------------------
>>>>> commit 06b93644f4d102bdfc297159121acc1de794d68d
>>>>> Author: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
>>>>> Date:   Tue Mar 24 10:27:15 2020 +0100
>>>>>
>>>>>     media: Kconfig: add an option to filter in/out platform drivers
>>>>>     
>>>>>     Most systems don't need support for those, while others only
>>>>>     need those, instead of the others.
>>>>>     
>>>>>     So, add an option to filter in/out platform drivers.
>>>>>     
>>>>>     Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
>>>>>
>>>>> diff --git a/drivers/media/Kconfig b/drivers/media/Kconfig
>>>>> index 9dfea5c4b6ab7..2b6ea8beb9199 100644
>>>>> --- a/drivers/media/Kconfig
>>>>> +++ b/drivers/media/Kconfig
>>>>> @@ -87,6 +87,18 @@ config MEDIA_CEC_SUPPORT
>>>>>  	  Say Y when you have an HDMI receiver, transmitter or a USB CEC
>>>>>  	  adapter that supports HDMI CEC.
>>>>>  
>>>>> +config MEDIA_PLATFORM_SUPPORT
>>>>> +	bool "Platform-specific devices support"
>>>>> +	help
>>>>> +	  Enable support for complex cameras, codecs, and other hardware
>>>>> +	  that are integrated at the CPU, GPU or on Image Signalling Processor
>>>>> +	  and don't use PCI, USB or Firewire buses.
>>>>> +
>>>>> +	  This is found on Embedded hardware (SoC), on V4L2 codecs and
>>>>> +	  on some GPU and newer CPU chipsets.
>>>>> +
>>>>> +	  Say Y when you want to be able so see such devices.
>>>>> +
>>>>>  source "drivers/media/cec/Kconfig"
>>>>>  
>>>>>  source "drivers/media/mc/Kconfig"
>>>>> @@ -161,15 +173,14 @@ source "drivers/media/dvb-core/Kconfig"
>>>>>  
>>>>>  comment "Media drivers"
>>>>>  
>>>>> -#
>>>>> -# V4L platform/mem2mem drivers
>>>>> -#
>>>>> -
>>>>>  source "drivers/media/usb/Kconfig"
>>>>>  source "drivers/media/pci/Kconfig"
>>>>> +source "drivers/media/radio/Kconfig"
>>>>> +
>>>>> +if MEDIA_PLATFORM_SUPPORT
>>>>>  source "drivers/media/platform/Kconfig"
>>>>>  source "drivers/media/mmc/Kconfig"
>>>>> -source "drivers/media/radio/Kconfig"
>>>>> +endif
>>>>>  
>>>>>  comment "Supported FireWire (IEEE 1394) Adapters"
>>>>>  	depends on DVB_CORE && FIREWIRE
>>>>> -------------------------------------------------------------------------------
>>>>>
>>>>>
>>>>> Git bisection log:
>>>>>
>>>>> -------------------------------------------------------------------------------
>>>>> git bisect start
>>>>> # good: [2632e7b618a7730969f9782593c29ca53553aa22] media: venus: firmware: Ignore secure call error on first resume
>>>>> git bisect good 2632e7b618a7730969f9782593c29ca53553aa22
>>>>> # bad: [ba445b7ff43b3e45836a9a290efdc3a36ea63941] media: dt-bindings: rockchip-vpu: Convert bindings to json-schema
>>>>> git bisect bad ba445b7ff43b3e45836a9a290efdc3a36ea63941
>>>>> # good: [29d9f30d4ce6c7a38745a54a8cddface10013490] Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
>>>>> git bisect good 29d9f30d4ce6c7a38745a54a8cddface10013490
>>>>> # good: [e109f506074152b7241bcbd3949a099e776cb802] Merge tag 'mtd/for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux
>>>>> git bisect good e109f506074152b7241bcbd3949a099e776cb802
>>>>> # good: [aa1a8ce533324d12696a9f4b71dbc5eb561a2e04] Merge tag 'trace-v5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
>>>>> git bisect good aa1a8ce533324d12696a9f4b71dbc5eb561a2e04
>>>>> # good: [c7b6a566b98524baea6a244186e665d22b633545] mm/gup: Mark lock taken only after a successful retake
>>>>> git bisect good c7b6a566b98524baea6a244186e665d22b633545
>>>>> # good: [e4da01d8333e500e15a674d75885a9dfcfd31e77] Merge tag 'powerpc-5.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
>>>>> git bisect good e4da01d8333e500e15a674d75885a9dfcfd31e77
>>>>> # good: [6900433e0fbca146d8170bdf876271cdf3053021] Merge tag 'for-linus-5.7-1' of git://github.com/cminyard/linux-ipmi
>>>>> git bisect good 6900433e0fbca146d8170bdf876271cdf3053021
>>>>> # good: [b753101a4ac0b906064a72feec43f5b80a1fe2e5] Merge tag 'kbuild-v5.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
>>>>> git bisect good b753101a4ac0b906064a72feec43f5b80a1fe2e5
>>>>> # bad: [4b32216adb010a364f23a055c45e06e839b089f9] media: split test drivers from platform directory
>>>>> git bisect bad 4b32216adb010a364f23a055c45e06e839b089f9
>>>>> # good: [20e2aa812620439d010a3f78ba4e05bc0b3e2861] Merge tag 'perf-urgent-2020-04-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
>>>>> git bisect good 20e2aa812620439d010a3f78ba4e05bc0b3e2861
>>>>> # good: [0785249f8b93836986e9d1bdeefd2a2c13f160af] Merge tag 'timers-urgent-2020-04-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
>>>>> git bisect good 0785249f8b93836986e9d1bdeefd2a2c13f160af
>>>>> # good: [3b50142d8528e1efc1c07f69c540f926c58ab3ad] MAINTAINERS: sort field names for all entries
>>>>> git bisect good 3b50142d8528e1efc1c07f69c540f926c58ab3ad
>>>>> # bad: [06b93644f4d102bdfc297159121acc1de794d68d] media: Kconfig: add an option to filter in/out platform drivers
>>>>> git bisect bad 06b93644f4d102bdfc297159121acc1de794d68d
>>>>> # good: [d9d6e1f3d5bbca799910072b2110963250e0b9c6] media: dvb-usb: auto-select CYPRESS_FIRMWARE
>>>>> git bisect good d9d6e1f3d5bbca799910072b2110963250e0b9c6
>>>>> # first bad commit: [06b93644f4d102bdfc297159121acc1de794d68d] media: Kconfig: add an option to filter in/out platform drivers
>>>>> -------------------------------------------------------------------------------
>>>>>   
>>>>
>>>
>>>
>>>
>>> Thanks,
>>> Mauro
>>>
>>
> 
> 

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