2023-11-28 04:20:52

by Vignesh Raman

[permalink] [raw]
Subject: [PATCH] PCI: qcom: Fix compile error

Commit a2458d8f618a ("PCI/ASPM: pci_enable_link_state: Add argument
to acquire bus lock") has added an argument to acquire bus lock
in pci_enable_link_state, but qcom_pcie_enable_aspm calls it
without this argument, resulting in below build error.

drivers/pci/controller/dwc/pcie-qcom.c:973:9: error: too few arguments to function 'pci_enable_link_state'

This commit fixes the compilation error by passing the sem argument
to pci_enable_link_state in the qcom_pcie_enable_aspm function.

Signed-off-by: Vignesh Raman <[email protected]>
---
drivers/pci/controller/dwc/pcie-qcom.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/controller/dwc/pcie-qcom.c b/drivers/pci/controller/dwc/pcie-qcom.c
index 6902e97719d1..e846e3531d8e 100644
--- a/drivers/pci/controller/dwc/pcie-qcom.c
+++ b/drivers/pci/controller/dwc/pcie-qcom.c
@@ -970,7 +970,7 @@ static int qcom_pcie_enable_aspm(struct pci_dev *pdev, void *userdata)
{
/* Downstream devices need to be in D0 state before enabling PCI PM substates */
pci_set_power_state(pdev, PCI_D0);
- pci_enable_link_state(pdev, PCIE_LINK_STATE_ALL);
+ pci_enable_link_state(pdev, PCIE_LINK_STATE_ALL, false);

return 0;
}
--
2.40.1


2023-11-28 05:15:43

by Manivannan Sadhasivam

[permalink] [raw]
Subject: Re: [PATCH] PCI: qcom: Fix compile error

On Tue, Nov 28, 2023 at 09:50:26AM +0530, Vignesh Raman wrote:
> Commit a2458d8f618a ("PCI/ASPM: pci_enable_link_state: Add argument
> to acquire bus lock") has added an argument to acquire bus lock
> in pci_enable_link_state, but qcom_pcie_enable_aspm calls it
> without this argument, resulting in below build error.
>

Where do you see this error? That patch is not even merged. Looks like you are
sending the patch against some downstream tree.

- Mani

> drivers/pci/controller/dwc/pcie-qcom.c:973:9: error: too few arguments to function 'pci_enable_link_state'
>
> This commit fixes the compilation error by passing the sem argument
> to pci_enable_link_state in the qcom_pcie_enable_aspm function.
>
> Signed-off-by: Vignesh Raman <[email protected]>
> ---
> drivers/pci/controller/dwc/pcie-qcom.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/pci/controller/dwc/pcie-qcom.c b/drivers/pci/controller/dwc/pcie-qcom.c
> index 6902e97719d1..e846e3531d8e 100644
> --- a/drivers/pci/controller/dwc/pcie-qcom.c
> +++ b/drivers/pci/controller/dwc/pcie-qcom.c
> @@ -970,7 +970,7 @@ static int qcom_pcie_enable_aspm(struct pci_dev *pdev, void *userdata)
> {
> /* Downstream devices need to be in D0 state before enabling PCI PM substates */
> pci_set_power_state(pdev, PCI_D0);
> - pci_enable_link_state(pdev, PCIE_LINK_STATE_ALL);
> + pci_enable_link_state(pdev, PCIE_LINK_STATE_ALL, false);
>
> return 0;
> }
> --
> 2.40.1
>
>

--
மணிவண்ணன் சதாசிவம்

2023-11-28 06:14:41

by Vignesh Raman

[permalink] [raw]
Subject: Re: [PATCH] PCI: qcom: Fix compile error

Hi Mani,

On 28/11/23 10:44, Manivannan Sadhasivam wrote:
> On Tue, Nov 28, 2023 at 09:50:26AM +0530, Vignesh Raman wrote:
>> Commit a2458d8f618a ("PCI/ASPM: pci_enable_link_state: Add argument
>> to acquire bus lock") has added an argument to acquire bus lock
>> in pci_enable_link_state, but qcom_pcie_enable_aspm calls it
>> without this argument, resulting in below build error.
>>
>
> Where do you see this error? That patch is not even merged. Looks like you are
> sending the patch against some downstream tree.

I got this error with drm-tip - git://anongit.freedesktop.org/drm-tip

This commit is merged in drm-intel/topic/core-for-CI -
https://cgit.freedesktop.org/drm-intel/log/?h=topic/core-for-CI

Regards,
Vignesh

2023-11-28 06:51:24

by Manivannan Sadhasivam

[permalink] [raw]
Subject: Re: [PATCH] PCI: qcom: Fix compile error

On Tue, Nov 28, 2023 at 11:44:26AM +0530, Vignesh Raman wrote:
> Hi Mani,
>
> On 28/11/23 10:44, Manivannan Sadhasivam wrote:
> > On Tue, Nov 28, 2023 at 09:50:26AM +0530, Vignesh Raman wrote:
> > > Commit a2458d8f618a ("PCI/ASPM: pci_enable_link_state: Add argument
> > > to acquire bus lock") has added an argument to acquire bus lock
> > > in pci_enable_link_state, but qcom_pcie_enable_aspm calls it
> > > without this argument, resulting in below build error.
> > >
> >
> > Where do you see this error? That patch is not even merged. Looks like you are
> > sending the patch against some downstream tree.
>
> I got this error with drm-tip - git://anongit.freedesktop.org/drm-tip
>
> This commit is merged in drm-intel/topic/core-for-CI -
> https://cgit.freedesktop.org/drm-intel/log/?h=topic/core-for-CI
>

Okay. Since this patch is just for CI, please do not CC linux-pci as it causes
confusion.

- Mani

> Regards,
> Vignesh

--
மணிவண்ணன் சதாசிவம்

2023-11-28 07:47:39

by Vignesh Raman

[permalink] [raw]
Subject: Re: [PATCH] PCI: qcom: Fix compile error


On 28/11/23 12:21, Manivannan Sadhasivam wrote:
> On Tue, Nov 28, 2023 at 11:44:26AM +0530, Vignesh Raman wrote:
>> Hi Mani,
>>
>> On 28/11/23 10:44, Manivannan Sadhasivam wrote:
>>> On Tue, Nov 28, 2023 at 09:50:26AM +0530, Vignesh Raman wrote:
>>>> Commit a2458d8f618a ("PCI/ASPM: pci_enable_link_state: Add argument
>>>> to acquire bus lock") has added an argument to acquire bus lock
>>>> in pci_enable_link_state, but qcom_pcie_enable_aspm calls it
>>>> without this argument, resulting in below build error.
>>>>
>>>
>>> Where do you see this error? That patch is not even merged. Looks like you are
>>> sending the patch against some downstream tree.
>>
>> I got this error with drm-tip - git://anongit.freedesktop.org/drm-tip
>>
>> This commit is merged in drm-intel/topic/core-for-CI -
>> https://cgit.freedesktop.org/drm-intel/log/?h=topic/core-for-CI
>>
>
> Okay. Since this patch is just for CI, please do not CC linux-pci as it causes
> confusion.

Sure, thank you.

Jani, is this fix required for topic/core-for-CI ?

Regards,
Vignesh

2023-11-28 10:46:40

by Manivannan Sadhasivam

[permalink] [raw]
Subject: Re: [PATCH] PCI: qcom: Fix compile error

On Tue, Nov 28, 2023 at 12:39:02PM +0200, Jani Nikula wrote:
> On Tue, 28 Nov 2023, Manivannan Sadhasivam <[email protected]> wrote:
> > On Tue, Nov 28, 2023 at 11:44:26AM +0530, Vignesh Raman wrote:
> >> Hi Mani,
> >>
> >> On 28/11/23 10:44, Manivannan Sadhasivam wrote:
> >> > On Tue, Nov 28, 2023 at 09:50:26AM +0530, Vignesh Raman wrote:
> >> > > Commit a2458d8f618a ("PCI/ASPM: pci_enable_link_state: Add argument
> >> > > to acquire bus lock") has added an argument to acquire bus lock
> >> > > in pci_enable_link_state, but qcom_pcie_enable_aspm calls it
> >> > > without this argument, resulting in below build error.
> >> > >
> >> >
> >> > Where do you see this error? That patch is not even merged. Looks like you are
> >> > sending the patch against some downstream tree.
> >>
> >> I got this error with drm-tip - git://anongit.freedesktop.org/drm-tip
> >>
> >> This commit is merged in drm-intel/topic/core-for-CI -
> >> https://cgit.freedesktop.org/drm-intel/log/?h=topic/core-for-CI
> >>
> >
> > Okay. Since this patch is just for CI, please do not CC linux-pci as it causes
> > confusion.
>
> Agreed. More on-topic for linux-pci is what happened with [1].
>
> We've been running CI with that for months now to avoid lockdep splats,
> and it's obviously in everyone's best interest to get a fix upstream.
>

Yes, ofc. Right now we have 2 series/patches to fix the locking issue:

https://lore.kernel.org/all/[email protected]/
https://lore.kernel.org/linux-pci/[email protected]/

Bjorn has to choose one among them.

- Mani

> David, Bjorn?
>
>
> BR,
> Jani.
>
>
> [1] https://lore.kernel.org/all/[email protected]/
>
>
>
>
> >
> > - Mani
> >
> >> Regards,
> >> Vignesh
>
> --
> Jani Nikula, Intel

--
மணிவண்ணன் சதாசிவம்

2023-11-28 10:49:25

by Jani Nikula

[permalink] [raw]
Subject: Re: [PATCH] PCI: qcom: Fix compile error

On Tue, 28 Nov 2023, Manivannan Sadhasivam <[email protected]> wrote:
> On Tue, Nov 28, 2023 at 11:44:26AM +0530, Vignesh Raman wrote:
>> Hi Mani,
>>
>> On 28/11/23 10:44, Manivannan Sadhasivam wrote:
>> > On Tue, Nov 28, 2023 at 09:50:26AM +0530, Vignesh Raman wrote:
>> > > Commit a2458d8f618a ("PCI/ASPM: pci_enable_link_state: Add argument
>> > > to acquire bus lock") has added an argument to acquire bus lock
>> > > in pci_enable_link_state, but qcom_pcie_enable_aspm calls it
>> > > without this argument, resulting in below build error.
>> > >
>> >
>> > Where do you see this error? That patch is not even merged. Looks like you are
>> > sending the patch against some downstream tree.
>>
>> I got this error with drm-tip - git://anongit.freedesktop.org/drm-tip
>>
>> This commit is merged in drm-intel/topic/core-for-CI -
>> https://cgit.freedesktop.org/drm-intel/log/?h=topic/core-for-CI
>>
>
> Okay. Since this patch is just for CI, please do not CC linux-pci as it causes
> confusion.

Agreed. More on-topic for linux-pci is what happened with [1].

We've been running CI with that for months now to avoid lockdep splats,
and it's obviously in everyone's best interest to get a fix upstream.

David, Bjorn?


BR,
Jani.


[1] https://lore.kernel.org/all/[email protected]/




>
> - Mani
>
>> Regards,
>> Vignesh

--
Jani Nikula, Intel