Hi Tudor,
Please see the bisection report below about a NULL pointer
dereference on RPi-3B with 64K pages.
Reports aren't automatically sent to the public while we're
trialing new bisection features on kernelci.org but this one
looks valid.
This is the kernel error message in the full boot log:
https://storage.kernelci.org/next/master/next-20210421/arm64/defconfig+CONFIG_ARM64_64K_PAGES=y/gcc-8/lab-baylibre/baseline-bcm2837-rpi-3-b.html#L336
More details can be found here:
https://linux.kernelci.org/test/case/id/60801a28ecf57fef7d9b77af/
Please let us know if you need any help to debug this issue or
try a fix.
Best wishes,
Guillaume
On 21/04/2021 22:40, KernelCI 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" <[email protected]> *
> * *
> * Hope this helps! *
> * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
>
> next/master bisection: baseline.dmesg.alert on bcm2837-rpi-3-b
>
> Summary:
> Start: b74523885a71 Add linux-next specific files for 20210421
> Plain log: https://storage.kernelci.org/next/master/next-20210421/arm64/defconfig+CONFIG_RANDOMIZE_BASE=y/gcc-8/lab-baylibre/baseline-bcm2837-rpi-3-b.txt
> HTML log: https://storage.kernelci.org/next/master/next-20210421/arm64/defconfig+CONFIG_RANDOMIZE_BASE=y/gcc-8/lab-baylibre/baseline-bcm2837-rpi-3-b.html
> Result: 6579c8d97ad7 clk: Mark fwnodes when their clock provider is added
>
> Checks:
> revert: PASS
> verify: PASS
>
> Parameters:
> Tree: next
> URL: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
> Branch: master
> Target: bcm2837-rpi-3-b
> CPU arch: arm64
> Lab: lab-baylibre
> Compiler: gcc-8
> Config: defconfig+CONFIG_RANDOMIZE_BASE=y
> Test case: baseline.dmesg.alert
>
> Breaking commit found:
>
> -------------------------------------------------------------------------------
> commit 6579c8d97ad7fc5671ee60234f3b8388abee5f77
> Author: Tudor Ambarus <[email protected]>
> Date: Wed Feb 10 13:44:35 2021 +0200
>
> clk: Mark fwnodes when their clock provider is added
>
> This is a follow-up for:
> commit 3c9ea42802a1 ("clk: Mark fwnodes when their clock provider is added/removed")
>
> The above commit updated the deprecated of_clk_add_provider(),
> but missed to update the preferred of_clk_add_hw_provider().
> Update it now.
>
> Signed-off-by: Tudor Ambarus <[email protected]>
> Acked-by: Stephen Boyd <[email protected]>
> Reviewed-by: Saravana Kannan <[email protected]>
> Link: https://lore.kernel.org/r/[email protected]
> Signed-off-by: Greg Kroah-Hartman <[email protected]>
>
> diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
> index 5052541a0986..60e12e0c036a 100644
> --- a/drivers/clk/clk.c
> +++ b/drivers/clk/clk.c
> @@ -4615,6 +4615,8 @@ int of_clk_add_hw_provider(struct device_node *np,
> if (ret < 0)
> of_clk_del_provider(np);
>
> + fwnode_dev_initialized(&np->fwnode, true);
> +
> return ret;
> }
> EXPORT_SYMBOL_GPL(of_clk_add_hw_provider);
> -------------------------------------------------------------------------------
>
>
> Git bisection log:
>
> -------------------------------------------------------------------------------
> git bisect start
> # good: [1fe5501ba1abf2b7e78295df73675423bd6899a0] Merge tag 'trace-v5.12-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
> git bisect good 1fe5501ba1abf2b7e78295df73675423bd6899a0
> # bad: [b74523885a715463203d4ccc3cf8c85952d3701a] Add linux-next specific files for 20210421
> git bisect bad b74523885a715463203d4ccc3cf8c85952d3701a
> # good: [a59aa904b6f45af01f1f87179437e31ba98506fc] Merge remote-tracking branch 'crypto/master'
> git bisect good a59aa904b6f45af01f1f87179437e31ba98506fc
> # good: [58af1162bdd0819bbec853afb574190f2be62464] Merge remote-tracking branch 'tip/auto-latest'
> git bisect good 58af1162bdd0819bbec853afb574190f2be62464
> # bad: [2e490d45230a23b07b7b2dc5f89ec213b677b032] Merge remote-tracking branch 'vfio/next'
> git bisect bad 2e490d45230a23b07b7b2dc5f89ec213b677b032
> # bad: [5941c9263bb2b27b5018f66a6f4111a6ba659a49] Merge remote-tracking branch 'driver-core/driver-core-next'
> git bisect bad 5941c9263bb2b27b5018f66a6f4111a6ba659a49
> # good: [3fe24bd182cc22c8e7e577553ae8efe3b4236afe] Merge remote-tracking branch 'kvm/next'
> git bisect good 3fe24bd182cc22c8e7e577553ae8efe3b4236afe
> # good: [dbb7b6249662b1a303e275c2e0dcdbefbae681bc] Merge remote-tracking branch 'percpu/for-next'
> git bisect good dbb7b6249662b1a303e275c2e0dcdbefbae681bc
> # good: [e5b20246d0707a4deee2e172b55a73b05309c05d] Merge remote-tracking branch 'drivers-x86/for-next'
> git bisect good e5b20246d0707a4deee2e172b55a73b05309c05d
> # bad: [c8a9c285f136f0cc65ac8328cd1710b155ad3df8] debugfs: drop pointless nul-termination in debugfs_read_file_bool()
> git bisect bad c8a9c285f136f0cc65ac8328cd1710b155ad3df8
> # bad: [b82a7b018b93d282d0f1a41a854ca3d071e02759] platform/x86: gpd pocket fan: Clean-up by using managed work init
> git bisect bad b82a7b018b93d282d0f1a41a854ca3d071e02759
> # good: [b6f617df4fa936c1ab1831c2b23563f6c1add6c4] driver core: Update device link status properly for device_bind_driver()
> git bisect good b6f617df4fa936c1ab1831c2b23563f6c1add6c4
> # bad: [53f95c55349e75b73f69ce36b0ae2a83b3f28fde] devcoredump: avoid -Wempty-body warnings
> git bisect bad 53f95c55349e75b73f69ce36b0ae2a83b3f28fde
> # bad: [6579c8d97ad7fc5671ee60234f3b8388abee5f77] clk: Mark fwnodes when their clock provider is added
> git bisect bad 6579c8d97ad7fc5671ee60234f3b8388abee5f77
> # good: [ea718c699055c8566eb64432388a04974c43b2ea] Revert "Revert "driver core: Set fw_devlink=on by default""
> git bisect good ea718c699055c8566eb64432388a04974c43b2ea
> # first bad commit: [6579c8d97ad7fc5671ee60234f3b8388abee5f77] clk: Mark fwnodes when their clock provider is added
> -------------------------------------------------------------------------------
>
>
> -=-=-=-=-=-=-=-=-=-=-=-
> Groups.io Links: You receive all messages sent to this group.
> View/Reply Online (#10226): https://groups.io/g/kernelci-results/message/10226
> Mute This Topic: https://groups.io/mt/82249004/924702
> Group Owner: [email protected]
> Unsubscribe: https://groups.io/g/kernelci-results/unsub [[email protected]]
> -=-=-=-=-=-=-=-=-=-=-=-
>
>
On 4/23/21 12:33 AM, Guillaume Tucker wrote:
> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
>
> Hi Tudor,
Hi, Guillaume,
>
> Please see the bisection report below about a NULL pointer
> dereference on RPi-3B with 64K pages.
>
> Reports aren't automatically sent to the public while we're
> trialing new bisection features on kernelci.org but this one
> looks valid.
>
Thanks, few other people reported it. There are some suggestions in
the thread of the patch and I thought they are materialized in a fixing
patch already.
Stephen, do you know if there's already a patch addressing this? I wasn't
Cc-ed. Do you want me to scratch a patch with one of the proposed methods?
I'll skim through the linux-clk patchwork.
Cheers,
ta
> This is the kernel error message in the full boot log:
>
> https://storage.kernelci.org/next/master/next-20210421/arm64/defconfig+CONFIG_ARM64_64K_PAGES=y/gcc-8/lab-baylibre/baseline-bcm2837-rpi-3-b.html#L336
>
> More details can be found here:
>
> https://linux.kernelci.org/test/case/id/60801a28ecf57fef7d9b77af/
>
>
> Please let us know if you need any help to debug this issue or
> try a fix.
>
> Best wishes,
> Guillaume
>
>
> On 21/04/2021 22:40, KernelCI 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" <[email protected]> *
>> * *
>> * Hope this helps! *
>> * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
>>
>> next/master bisection: baseline.dmesg.alert on bcm2837-rpi-3-b
>>
>> Summary:
>> Start: b74523885a71 Add linux-next specific files for 20210421
>> Plain log: https://storage.kernelci.org/next/master/next-20210421/arm64/defconfig+CONFIG_RANDOMIZE_BASE=y/gcc-8/lab-baylibre/baseline-bcm2837-rpi-3-b.txt
>> HTML log: https://storage.kernelci.org/next/master/next-20210421/arm64/defconfig+CONFIG_RANDOMIZE_BASE=y/gcc-8/lab-baylibre/baseline-bcm2837-rpi-3-b.html
>> Result: 6579c8d97ad7 clk: Mark fwnodes when their clock provider is added
>>
>> Checks:
>> revert: PASS
>> verify: PASS
>>
>> Parameters:
>> Tree: next
>> URL: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
>> Branch: master
>> Target: bcm2837-rpi-3-b
>> CPU arch: arm64
>> Lab: lab-baylibre
>> Compiler: gcc-8
>> Config: defconfig+CONFIG_RANDOMIZE_BASE=y
>> Test case: baseline.dmesg.alert
>>
>> Breaking commit found:
>>
>> -------------------------------------------------------------------------------
>> commit 6579c8d97ad7fc5671ee60234f3b8388abee5f77
>> Author: Tudor Ambarus <[email protected]>
>> Date: Wed Feb 10 13:44:35 2021 +0200
>>
>> clk: Mark fwnodes when their clock provider is added
>>
>> This is a follow-up for:
>> commit 3c9ea42802a1 ("clk: Mark fwnodes when their clock provider is added/removed")
>>
>> The above commit updated the deprecated of_clk_add_provider(),
>> but missed to update the preferred of_clk_add_hw_provider().
>> Update it now.
>>
>> Signed-off-by: Tudor Ambarus <[email protected]>
>> Acked-by: Stephen Boyd <[email protected]>
>> Reviewed-by: Saravana Kannan <[email protected]>
>> Link: https://lore.kernel.org/r/[email protected]
>> Signed-off-by: Greg Kroah-Hartman <[email protected]>
>>
>> diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
>> index 5052541a0986..60e12e0c036a 100644
>> --- a/drivers/clk/clk.c
>> +++ b/drivers/clk/clk.c
>> @@ -4615,6 +4615,8 @@ int of_clk_add_hw_provider(struct device_node *np,
>> if (ret < 0)
>> of_clk_del_provider(np);
>>
>> + fwnode_dev_initialized(&np->fwnode, true);
>> +
>> return ret;
>> }
>> EXPORT_SYMBOL_GPL(of_clk_add_hw_provider);
>> -------------------------------------------------------------------------------
>>
>>
>> Git bisection log:
>>
>> -------------------------------------------------------------------------------
>> git bisect start
>> # good: [1fe5501ba1abf2b7e78295df73675423bd6899a0] Merge tag 'trace-v5.12-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
>> git bisect good 1fe5501ba1abf2b7e78295df73675423bd6899a0
>> # bad: [b74523885a715463203d4ccc3cf8c85952d3701a] Add linux-next specific files for 20210421
>> git bisect bad b74523885a715463203d4ccc3cf8c85952d3701a
>> # good: [a59aa904b6f45af01f1f87179437e31ba98506fc] Merge remote-tracking branch 'crypto/master'
>> git bisect good a59aa904b6f45af01f1f87179437e31ba98506fc
>> # good: [58af1162bdd0819bbec853afb574190f2be62464] Merge remote-tracking branch 'tip/auto-latest'
>> git bisect good 58af1162bdd0819bbec853afb574190f2be62464
>> # bad: [2e490d45230a23b07b7b2dc5f89ec213b677b032] Merge remote-tracking branch 'vfio/next'
>> git bisect bad 2e490d45230a23b07b7b2dc5f89ec213b677b032
>> # bad: [5941c9263bb2b27b5018f66a6f4111a6ba659a49] Merge remote-tracking branch 'driver-core/driver-core-next'
>> git bisect bad 5941c9263bb2b27b5018f66a6f4111a6ba659a49
>> # good: [3fe24bd182cc22c8e7e577553ae8efe3b4236afe] Merge remote-tracking branch 'kvm/next'
>> git bisect good 3fe24bd182cc22c8e7e577553ae8efe3b4236afe
>> # good: [dbb7b6249662b1a303e275c2e0dcdbefbae681bc] Merge remote-tracking branch 'percpu/for-next'
>> git bisect good dbb7b6249662b1a303e275c2e0dcdbefbae681bc
>> # good: [e5b20246d0707a4deee2e172b55a73b05309c05d] Merge remote-tracking branch 'drivers-x86/for-next'
>> git bisect good e5b20246d0707a4deee2e172b55a73b05309c05d
>> # bad: [c8a9c285f136f0cc65ac8328cd1710b155ad3df8] debugfs: drop pointless nul-termination in debugfs_read_file_bool()
>> git bisect bad c8a9c285f136f0cc65ac8328cd1710b155ad3df8
>> # bad: [b82a7b018b93d282d0f1a41a854ca3d071e02759] platform/x86: gpd pocket fan: Clean-up by using managed work init
>> git bisect bad b82a7b018b93d282d0f1a41a854ca3d071e02759
>> # good: [b6f617df4fa936c1ab1831c2b23563f6c1add6c4] driver core: Update device link status properly for device_bind_driver()
>> git bisect good b6f617df4fa936c1ab1831c2b23563f6c1add6c4
>> # bad: [53f95c55349e75b73f69ce36b0ae2a83b3f28fde] devcoredump: avoid -Wempty-body warnings
>> git bisect bad 53f95c55349e75b73f69ce36b0ae2a83b3f28fde
>> # bad: [6579c8d97ad7fc5671ee60234f3b8388abee5f77] clk: Mark fwnodes when their clock provider is added
>> git bisect bad 6579c8d97ad7fc5671ee60234f3b8388abee5f77
>> # good: [ea718c699055c8566eb64432388a04974c43b2ea] Revert "Revert "driver core: Set fw_devlink=on by default""
>> git bisect good ea718c699055c8566eb64432388a04974c43b2ea
>> # first bad commit: [6579c8d97ad7fc5671ee60234f3b8388abee5f77] clk: Mark fwnodes when their clock provider is added
>> -------------------------------------------------------------------------------
>>
>>
>> -=-=-=-=-=-=-=-=-=-=-=-
>> Groups.io Links: You receive all messages sent to this group.
>> View/Reply Online (#10226): https://groups.io/g/kernelci-results/message/10226
>> Mute This Topic: https://groups.io/mt/82249004/924702
>> Group Owner: [email protected]
>> Unsubscribe: https://groups.io/g/kernelci-results/unsub [[email protected]]
>> -=-=-=-=-=-=-=-=-=-=-=-
>>
>>
>
On 23/04/2021 05:38, [email protected] wrote:
> On 4/23/21 12:33 AM, Guillaume Tucker wrote:
>> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
>>
>> Hi Tudor,
>
> Hi, Guillaume,
>
>>
>> Please see the bisection report below about a NULL pointer
>> dereference on RPi-3B with 64K pages.
>>
>> Reports aren't automatically sent to the public while we're
>> trialing new bisection features on kernelci.org but this one
>> looks valid.
>>
>
> Thanks, few other people reported it. There are some suggestions in
> the thread of the patch and I thought they are materialized in a fixing
> patch already.
The bisection was run for next-20210421 and I can see the problem
is still there in 20210422:
https://linux.kernelci.org/test/case/id/608158c23ad9136bb59b782c/
I can keep an eye on linux-next results to see if it gets fixed
today or Monday and report here.
Best wishes,
Guillaume
> Stephen, do you know if there's already a patch addressing this? I wasn't
> Cc-ed. Do you want me to scratch a patch with one of the proposed methods?
> I'll skim through the linux-clk patchwork.
>
> Cheers,
> ta
>
>> This is the kernel error message in the full boot log:
>>
>> https://storage.kernelci.org/next/master/next-20210421/arm64/defconfig+CONFIG_ARM64_64K_PAGES=y/gcc-8/lab-baylibre/baseline-bcm2837-rpi-3-b.html#L336
>>
>> More details can be found here:
>>
>> https://linux.kernelci.org/test/case/id/60801a28ecf57fef7d9b77af/
>>
>>
>> Please let us know if you need any help to debug this issue or
>> try a fix.
>>
>> Best wishes,
>> Guillaume
>>
>>
>> On 21/04/2021 22:40, KernelCI 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" <[email protected]> *
>>> * *
>>> * Hope this helps! *
>>> * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
>>>
>>> next/master bisection: baseline.dmesg.alert on bcm2837-rpi-3-b
>>>
>>> Summary:
>>> Start: b74523885a71 Add linux-next specific files for 20210421
>>> Plain log: https://storage.kernelci.org/next/master/next-20210421/arm64/defconfig+CONFIG_RANDOMIZE_BASE=y/gcc-8/lab-baylibre/baseline-bcm2837-rpi-3-b.txt
>>> HTML log: https://storage.kernelci.org/next/master/next-20210421/arm64/defconfig+CONFIG_RANDOMIZE_BASE=y/gcc-8/lab-baylibre/baseline-bcm2837-rpi-3-b.html
>>> Result: 6579c8d97ad7 clk: Mark fwnodes when their clock provider is added
>>>
>>> Checks:
>>> revert: PASS
>>> verify: PASS
>>>
>>> Parameters:
>>> Tree: next
>>> URL: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
>>> Branch: master
>>> Target: bcm2837-rpi-3-b
>>> CPU arch: arm64
>>> Lab: lab-baylibre
>>> Compiler: gcc-8
>>> Config: defconfig+CONFIG_RANDOMIZE_BASE=y
>>> Test case: baseline.dmesg.alert
>>>
>>> Breaking commit found:
>>>
>>> -------------------------------------------------------------------------------
>>> commit 6579c8d97ad7fc5671ee60234f3b8388abee5f77
>>> Author: Tudor Ambarus <[email protected]>
>>> Date: Wed Feb 10 13:44:35 2021 +0200
>>>
>>> clk: Mark fwnodes when their clock provider is added
>>>
>>> This is a follow-up for:
>>> commit 3c9ea42802a1 ("clk: Mark fwnodes when their clock provider is added/removed")
>>>
>>> The above commit updated the deprecated of_clk_add_provider(),
>>> but missed to update the preferred of_clk_add_hw_provider().
>>> Update it now.
>>>
>>> Signed-off-by: Tudor Ambarus <[email protected]>
>>> Acked-by: Stephen Boyd <[email protected]>
>>> Reviewed-by: Saravana Kannan <[email protected]>
>>> Link: https://lore.kernel.org/r/[email protected]
>>> Signed-off-by: Greg Kroah-Hartman <[email protected]>
>>>
>>> diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
>>> index 5052541a0986..60e12e0c036a 100644
>>> --- a/drivers/clk/clk.c
>>> +++ b/drivers/clk/clk.c
>>> @@ -4615,6 +4615,8 @@ int of_clk_add_hw_provider(struct device_node *np,
>>> if (ret < 0)
>>> of_clk_del_provider(np);
>>>
>>> + fwnode_dev_initialized(&np->fwnode, true);
>>> +
>>> return ret;
>>> }
>>> EXPORT_SYMBOL_GPL(of_clk_add_hw_provider);
>>> -------------------------------------------------------------------------------
>>>
>>>
>>> Git bisection log:
>>>
>>> -------------------------------------------------------------------------------
>>> git bisect start
>>> # good: [1fe5501ba1abf2b7e78295df73675423bd6899a0] Merge tag 'trace-v5.12-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
>>> git bisect good 1fe5501ba1abf2b7e78295df73675423bd6899a0
>>> # bad: [b74523885a715463203d4ccc3cf8c85952d3701a] Add linux-next specific files for 20210421
>>> git bisect bad b74523885a715463203d4ccc3cf8c85952d3701a
>>> # good: [a59aa904b6f45af01f1f87179437e31ba98506fc] Merge remote-tracking branch 'crypto/master'
>>> git bisect good a59aa904b6f45af01f1f87179437e31ba98506fc
>>> # good: [58af1162bdd0819bbec853afb574190f2be62464] Merge remote-tracking branch 'tip/auto-latest'
>>> git bisect good 58af1162bdd0819bbec853afb574190f2be62464
>>> # bad: [2e490d45230a23b07b7b2dc5f89ec213b677b032] Merge remote-tracking branch 'vfio/next'
>>> git bisect bad 2e490d45230a23b07b7b2dc5f89ec213b677b032
>>> # bad: [5941c9263bb2b27b5018f66a6f4111a6ba659a49] Merge remote-tracking branch 'driver-core/driver-core-next'
>>> git bisect bad 5941c9263bb2b27b5018f66a6f4111a6ba659a49
>>> # good: [3fe24bd182cc22c8e7e577553ae8efe3b4236afe] Merge remote-tracking branch 'kvm/next'
>>> git bisect good 3fe24bd182cc22c8e7e577553ae8efe3b4236afe
>>> # good: [dbb7b6249662b1a303e275c2e0dcdbefbae681bc] Merge remote-tracking branch 'percpu/for-next'
>>> git bisect good dbb7b6249662b1a303e275c2e0dcdbefbae681bc
>>> # good: [e5b20246d0707a4deee2e172b55a73b05309c05d] Merge remote-tracking branch 'drivers-x86/for-next'
>>> git bisect good e5b20246d0707a4deee2e172b55a73b05309c05d
>>> # bad: [c8a9c285f136f0cc65ac8328cd1710b155ad3df8] debugfs: drop pointless nul-termination in debugfs_read_file_bool()
>>> git bisect bad c8a9c285f136f0cc65ac8328cd1710b155ad3df8
>>> # bad: [b82a7b018b93d282d0f1a41a854ca3d071e02759] platform/x86: gpd pocket fan: Clean-up by using managed work init
>>> git bisect bad b82a7b018b93d282d0f1a41a854ca3d071e02759
>>> # good: [b6f617df4fa936c1ab1831c2b23563f6c1add6c4] driver core: Update device link status properly for device_bind_driver()
>>> git bisect good b6f617df4fa936c1ab1831c2b23563f6c1add6c4
>>> # bad: [53f95c55349e75b73f69ce36b0ae2a83b3f28fde] devcoredump: avoid -Wempty-body warnings
>>> git bisect bad 53f95c55349e75b73f69ce36b0ae2a83b3f28fde
>>> # bad: [6579c8d97ad7fc5671ee60234f3b8388abee5f77] clk: Mark fwnodes when their clock provider is added
>>> git bisect bad 6579c8d97ad7fc5671ee60234f3b8388abee5f77
>>> # good: [ea718c699055c8566eb64432388a04974c43b2ea] Revert "Revert "driver core: Set fw_devlink=on by default""
>>> git bisect good ea718c699055c8566eb64432388a04974c43b2ea
>>> # first bad commit: [6579c8d97ad7fc5671ee60234f3b8388abee5f77] clk: Mark fwnodes when their clock provider is added
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