[PATCH mlx5-next 1/2] PCI/TPH: Expose pcie_tph_get_st_table_loc()

Leon Romanovsky posted 2 patches 3 months, 2 weeks ago
[PATCH mlx5-next 1/2] PCI/TPH: Expose pcie_tph_get_st_table_loc()
Posted by Leon Romanovsky 3 months, 2 weeks ago
From: Yishai Hadas <yishaih@nvidia.com>

Expose pcie_tph_get_st_table_loc() to be used by drivers as will be done
in the next patch from the series.

Signed-off-by: Yishai Hadas <yishaih@nvidia.com>
Signed-off-by: Edward Srouji <edwards@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
---
 drivers/pci/tph.c       | 7 ++++---
 include/linux/pci-tph.h | 1 +
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/pci/tph.c b/drivers/pci/tph.c
index cc64f93709a4..8f8457ec9adb 100644
--- a/drivers/pci/tph.c
+++ b/drivers/pci/tph.c
@@ -155,7 +155,7 @@ static u8 get_st_modes(struct pci_dev *pdev)
 	return reg;
 }
 
-static u32 get_st_table_loc(struct pci_dev *pdev)
+u32 pcie_tph_get_st_table_loc(struct pci_dev *pdev)
 {
 	u32 reg;
 
@@ -163,6 +163,7 @@ static u32 get_st_table_loc(struct pci_dev *pdev)
 
 	return FIELD_GET(PCI_TPH_CAP_LOC_MASK, reg);
 }
+EXPORT_SYMBOL(pcie_tph_get_st_table_loc);
 
 /*
  * Return the size of ST table. If ST table is not in TPH Requester Extended
@@ -174,7 +175,7 @@ u16 pcie_tph_get_st_table_size(struct pci_dev *pdev)
 	u32 loc;
 
 	/* Check ST table location first */
-	loc = get_st_table_loc(pdev);
+	loc = pcie_tph_get_st_table_loc(pdev);
 
 	/* Convert loc to match with PCI_TPH_LOC_* defined in pci_regs.h */
 	loc = FIELD_PREP(PCI_TPH_CAP_LOC_MASK, loc);
@@ -299,7 +300,7 @@ int pcie_tph_set_st_entry(struct pci_dev *pdev, unsigned int index, u16 tag)
 	 */
 	set_ctrl_reg_req_en(pdev, PCI_TPH_REQ_DISABLE);
 
-	loc = get_st_table_loc(pdev);
+	loc = pcie_tph_get_st_table_loc(pdev);
 	/* Convert loc to match with PCI_TPH_LOC_* */
 	loc = FIELD_PREP(PCI_TPH_CAP_LOC_MASK, loc);
 
diff --git a/include/linux/pci-tph.h b/include/linux/pci-tph.h
index 9e4e331b1603..ba28140ce670 100644
--- a/include/linux/pci-tph.h
+++ b/include/linux/pci-tph.h
@@ -29,6 +29,7 @@ int pcie_tph_get_cpu_st(struct pci_dev *dev,
 void pcie_disable_tph(struct pci_dev *pdev);
 int pcie_enable_tph(struct pci_dev *pdev, int mode);
 u16 pcie_tph_get_st_table_size(struct pci_dev *pdev);
+u32 pcie_tph_get_st_table_loc(struct pci_dev *pdev);
 #else
 static inline int pcie_tph_set_st_entry(struct pci_dev *pdev,
 					unsigned int index, u16 tag)

-- 
2.51.0
Re: [PATCH mlx5-next 1/2] PCI/TPH: Expose pcie_tph_get_st_table_loc()
Posted by Bjorn Helgaas 3 months, 1 week ago
On Mon, Oct 27, 2025 at 11:34:01AM +0200, Leon Romanovsky wrote:
> From: Yishai Hadas <yishaih@nvidia.com>
> 
> Expose pcie_tph_get_st_table_loc() to be used by drivers as will be done
> in the next patch from the series.
> 
> Signed-off-by: Yishai Hadas <yishaih@nvidia.com>
> Signed-off-by: Edward Srouji <edwards@nvidia.com>
> Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
> ---
>  drivers/pci/tph.c       | 7 ++++---
>  include/linux/pci-tph.h | 1 +
>  2 files changed, 5 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/pci/tph.c b/drivers/pci/tph.c
> index cc64f93709a4..8f8457ec9adb 100644
> --- a/drivers/pci/tph.c
> +++ b/drivers/pci/tph.c
> @@ -155,7 +155,7 @@ static u8 get_st_modes(struct pci_dev *pdev)
>  	return reg;
>  }
>  
> -static u32 get_st_table_loc(struct pci_dev *pdev)
> +u32 pcie_tph_get_st_table_loc(struct pci_dev *pdev)
>  {
>  	u32 reg;
>  
> @@ -163,6 +163,7 @@ static u32 get_st_table_loc(struct pci_dev *pdev)
>  
>  	return FIELD_GET(PCI_TPH_CAP_LOC_MASK, reg);
>  }
> +EXPORT_SYMBOL(pcie_tph_get_st_table_loc);

OK by me, but I think we should add kernel-doc for the return value.

With that doc added:

Acked-by: Bjorn Helgaas <bhelgaas@google.com>


>  /*
>   * Return the size of ST table. If ST table is not in TPH Requester Extended
> @@ -174,7 +175,7 @@ u16 pcie_tph_get_st_table_size(struct pci_dev *pdev)
>  	u32 loc;
>  
>  	/* Check ST table location first */
> -	loc = get_st_table_loc(pdev);
> +	loc = pcie_tph_get_st_table_loc(pdev);
>  
>  	/* Convert loc to match with PCI_TPH_LOC_* defined in pci_regs.h */
>  	loc = FIELD_PREP(PCI_TPH_CAP_LOC_MASK, loc);
> @@ -299,7 +300,7 @@ int pcie_tph_set_st_entry(struct pci_dev *pdev, unsigned int index, u16 tag)
>  	 */
>  	set_ctrl_reg_req_en(pdev, PCI_TPH_REQ_DISABLE);
>  
> -	loc = get_st_table_loc(pdev);
> +	loc = pcie_tph_get_st_table_loc(pdev);
>  	/* Convert loc to match with PCI_TPH_LOC_* */
>  	loc = FIELD_PREP(PCI_TPH_CAP_LOC_MASK, loc);
>  
> diff --git a/include/linux/pci-tph.h b/include/linux/pci-tph.h
> index 9e4e331b1603..ba28140ce670 100644
> --- a/include/linux/pci-tph.h
> +++ b/include/linux/pci-tph.h
> @@ -29,6 +29,7 @@ int pcie_tph_get_cpu_st(struct pci_dev *dev,
>  void pcie_disable_tph(struct pci_dev *pdev);
>  int pcie_enable_tph(struct pci_dev *pdev, int mode);
>  u16 pcie_tph_get_st_table_size(struct pci_dev *pdev);
> +u32 pcie_tph_get_st_table_loc(struct pci_dev *pdev);
>  #else
>  static inline int pcie_tph_set_st_entry(struct pci_dev *pdev,
>  					unsigned int index, u16 tag)
> 
> -- 
> 2.51.0
>
Re: [PATCH mlx5-next 1/2] PCI/TPH: Expose pcie_tph_get_st_table_loc()
Posted by Yishai Hadas 3 months, 1 week ago
On 03/11/2025 17:43, Bjorn Helgaas wrote:
> On Mon, Oct 27, 2025 at 11:34:01AM +0200, Leon Romanovsky wrote:
>> From: Yishai Hadas <yishaih@nvidia.com>
>>
>> Expose pcie_tph_get_st_table_loc() to be used by drivers as will be done
>> in the next patch from the series.
>>
>> Signed-off-by: Yishai Hadas <yishaih@nvidia.com>
>> Signed-off-by: Edward Srouji <edwards@nvidia.com>
>> Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
>> ---
>>   drivers/pci/tph.c       | 7 ++++---
>>   include/linux/pci-tph.h | 1 +
>>   2 files changed, 5 insertions(+), 3 deletions(-)
>>
>> diff --git a/drivers/pci/tph.c b/drivers/pci/tph.c
>> index cc64f93709a4..8f8457ec9adb 100644
>> --- a/drivers/pci/tph.c
>> +++ b/drivers/pci/tph.c
>> @@ -155,7 +155,7 @@ static u8 get_st_modes(struct pci_dev *pdev)
>>   	return reg;
>>   }
>>   
>> -static u32 get_st_table_loc(struct pci_dev *pdev)
>> +u32 pcie_tph_get_st_table_loc(struct pci_dev *pdev)
>>   {
>>   	u32 reg;
>>   
>> @@ -163,6 +163,7 @@ static u32 get_st_table_loc(struct pci_dev *pdev)
>>   
>>   	return FIELD_GET(PCI_TPH_CAP_LOC_MASK, reg);
>>   }
>> +EXPORT_SYMBOL(pcie_tph_get_st_table_loc);
> 
> OK by me, but I think we should add kernel-doc for the return value.
> 
> With that doc added:
> 
> Acked-by: Bjorn Helgaas <bhelgaas@google.com>

Thanks Bjorn.

We may add the below hunk.

Can that work for you ?

diff --git a/drivers/pci/tph.c b/drivers/pci/tph.c
index 8f8457ec9adb..385307a9a328 100644
--- a/drivers/pci/tph.c
+++ b/drivers/pci/tph.c
@@ -155,6 +155,12 @@ static u8 get_st_modes(struct pci_dev *pdev)
         return reg;
  }

+/**
+ * pcie_tph_get_st_table_loc - query the device for its ST table location
+ * @pdev: PCI device to query
+ *
+ * Return the location of the ST table
+ */
  u32 pcie_tph_get_st_table_loc(struct pci_dev *pdev)
  {
         u32 reg;

Yishai

> 
> 
>>   /*
>>    * Return the size of ST table. If ST table is not in TPH Requester Extended
>> @@ -174,7 +175,7 @@ u16 pcie_tph_get_st_table_size(struct pci_dev *pdev)
>>   	u32 loc;
>>   
>>   	/* Check ST table location first */
>> -	loc = get_st_table_loc(pdev);
>> +	loc = pcie_tph_get_st_table_loc(pdev);
>>   
>>   	/* Convert loc to match with PCI_TPH_LOC_* defined in pci_regs.h */
>>   	loc = FIELD_PREP(PCI_TPH_CAP_LOC_MASK, loc);
>> @@ -299,7 +300,7 @@ int pcie_tph_set_st_entry(struct pci_dev *pdev, unsigned int index, u16 tag)
>>   	 */
>>   	set_ctrl_reg_req_en(pdev, PCI_TPH_REQ_DISABLE);
>>   
>> -	loc = get_st_table_loc(pdev);
>> +	loc = pcie_tph_get_st_table_loc(pdev);
>>   	/* Convert loc to match with PCI_TPH_LOC_* */
>>   	loc = FIELD_PREP(PCI_TPH_CAP_LOC_MASK, loc);
>>   
>> diff --git a/include/linux/pci-tph.h b/include/linux/pci-tph.h
>> index 9e4e331b1603..ba28140ce670 100644
>> --- a/include/linux/pci-tph.h
>> +++ b/include/linux/pci-tph.h
>> @@ -29,6 +29,7 @@ int pcie_tph_get_cpu_st(struct pci_dev *dev,
>>   void pcie_disable_tph(struct pci_dev *pdev);
>>   int pcie_enable_tph(struct pci_dev *pdev, int mode);
>>   u16 pcie_tph_get_st_table_size(struct pci_dev *pdev);
>> +u32 pcie_tph_get_st_table_loc(struct pci_dev *pdev);
>>   #else
>>   static inline int pcie_tph_set_st_entry(struct pci_dev *pdev,
>>   					unsigned int index, u16 tag)
>>
>> -- 
>> 2.51.0
>>
Re: [PATCH mlx5-next 1/2] PCI/TPH: Expose pcie_tph_get_st_table_loc()
Posted by Bjorn Helgaas 3 months, 1 week ago
On Mon, Nov 03, 2025 at 06:23:26PM +0200, Yishai Hadas wrote:
> On 03/11/2025 17:43, Bjorn Helgaas wrote:
> > On Mon, Oct 27, 2025 at 11:34:01AM +0200, Leon Romanovsky wrote:
> > > From: Yishai Hadas <yishaih@nvidia.com>
> > > 
> > > Expose pcie_tph_get_st_table_loc() to be used by drivers as will be done
> > > in the next patch from the series.
> > > 
> > > Signed-off-by: Yishai Hadas <yishaih@nvidia.com>
> > > Signed-off-by: Edward Srouji <edwards@nvidia.com>
> > > Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
> > > ---
> > >   drivers/pci/tph.c       | 7 ++++---
> > >   include/linux/pci-tph.h | 1 +
> > >   2 files changed, 5 insertions(+), 3 deletions(-)
> > > 
> > > diff --git a/drivers/pci/tph.c b/drivers/pci/tph.c
> > > index cc64f93709a4..8f8457ec9adb 100644
> > > --- a/drivers/pci/tph.c
> > > +++ b/drivers/pci/tph.c
> > > @@ -155,7 +155,7 @@ static u8 get_st_modes(struct pci_dev *pdev)
> > >   	return reg;
> > >   }
> > > -static u32 get_st_table_loc(struct pci_dev *pdev)
> > > +u32 pcie_tph_get_st_table_loc(struct pci_dev *pdev)
> > >   {
> > >   	u32 reg;
> > > @@ -163,6 +163,7 @@ static u32 get_st_table_loc(struct pci_dev *pdev)
> > >   	return FIELD_GET(PCI_TPH_CAP_LOC_MASK, reg);
> > >   }
> > > +EXPORT_SYMBOL(pcie_tph_get_st_table_loc);
> > 
> > OK by me, but I think we should add kernel-doc for the return value.
> > 
> > With that doc added:
> > 
> > Acked-by: Bjorn Helgaas <bhelgaas@google.com>
> 
> Thanks Bjorn.
> 
> We may add the below hunk.
> 
> Can that work for you ?

No, because (a) it just restates the function name and doesn't say how
to interpret the return value (you would need a PCIe spec to look it
up) and (b) kernel-doc syntax would be "Return: " (see
Documentation/doc-guide/kernel-doc.rst for examples).

> diff --git a/drivers/pci/tph.c b/drivers/pci/tph.c
> index 8f8457ec9adb..385307a9a328 100644
> --- a/drivers/pci/tph.c
> +++ b/drivers/pci/tph.c
> @@ -155,6 +155,12 @@ static u8 get_st_modes(struct pci_dev *pdev)
>         return reg;
>  }
> 
> +/**
> + * pcie_tph_get_st_table_loc - query the device for its ST table location
> + * @pdev: PCI device to query
> + *
> + * Return the location of the ST table
> + */
>  u32 pcie_tph_get_st_table_loc(struct pci_dev *pdev)
>  {
>         u32 reg;
> 
> Yishai
> 
> > 
> > 
> > >   /*
> > >    * Return the size of ST table. If ST table is not in TPH Requester Extended
> > > @@ -174,7 +175,7 @@ u16 pcie_tph_get_st_table_size(struct pci_dev *pdev)
> > >   	u32 loc;
> > >   	/* Check ST table location first */
> > > -	loc = get_st_table_loc(pdev);
> > > +	loc = pcie_tph_get_st_table_loc(pdev);
> > >   	/* Convert loc to match with PCI_TPH_LOC_* defined in pci_regs.h */
> > >   	loc = FIELD_PREP(PCI_TPH_CAP_LOC_MASK, loc);
> > > @@ -299,7 +300,7 @@ int pcie_tph_set_st_entry(struct pci_dev *pdev, unsigned int index, u16 tag)
> > >   	 */
> > >   	set_ctrl_reg_req_en(pdev, PCI_TPH_REQ_DISABLE);
> > > -	loc = get_st_table_loc(pdev);
> > > +	loc = pcie_tph_get_st_table_loc(pdev);
> > >   	/* Convert loc to match with PCI_TPH_LOC_* */
> > >   	loc = FIELD_PREP(PCI_TPH_CAP_LOC_MASK, loc);
> > > diff --git a/include/linux/pci-tph.h b/include/linux/pci-tph.h
> > > index 9e4e331b1603..ba28140ce670 100644
> > > --- a/include/linux/pci-tph.h
> > > +++ b/include/linux/pci-tph.h
> > > @@ -29,6 +29,7 @@ int pcie_tph_get_cpu_st(struct pci_dev *dev,
> > >   void pcie_disable_tph(struct pci_dev *pdev);
> > >   int pcie_enable_tph(struct pci_dev *pdev, int mode);
> > >   u16 pcie_tph_get_st_table_size(struct pci_dev *pdev);
> > > +u32 pcie_tph_get_st_table_loc(struct pci_dev *pdev);
> > >   #else
> > >   static inline int pcie_tph_set_st_entry(struct pci_dev *pdev,
> > >   					unsigned int index, u16 tag)
> > > 
> > > -- 
> > > 2.51.0
> > > 
>
Re: [PATCH mlx5-next 1/2] PCI/TPH: Expose pcie_tph_get_st_table_loc()
Posted by Yishai Hadas 3 months ago
On 03/11/2025 19:28, Bjorn Helgaas wrote:
> On Mon, Nov 03, 2025 at 06:23:26PM +0200, Yishai Hadas wrote:
>> On 03/11/2025 17:43, Bjorn Helgaas wrote:
>>> On Mon, Oct 27, 2025 at 11:34:01AM +0200, Leon Romanovsky wrote:
>>>> From: Yishai Hadas <yishaih@nvidia.com>
>>>>
>>>> Expose pcie_tph_get_st_table_loc() to be used by drivers as will be done
>>>> in the next patch from the series.
>>>>
>>>> Signed-off-by: Yishai Hadas <yishaih@nvidia.com>
>>>> Signed-off-by: Edward Srouji <edwards@nvidia.com>
>>>> Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
>>>> ---
>>>>    drivers/pci/tph.c       | 7 ++++---
>>>>    include/linux/pci-tph.h | 1 +
>>>>    2 files changed, 5 insertions(+), 3 deletions(-)
>>>>
>>>> diff --git a/drivers/pci/tph.c b/drivers/pci/tph.c
>>>> index cc64f93709a4..8f8457ec9adb 100644
>>>> --- a/drivers/pci/tph.c
>>>> +++ b/drivers/pci/tph.c
>>>> @@ -155,7 +155,7 @@ static u8 get_st_modes(struct pci_dev *pdev)
>>>>    	return reg;
>>>>    }
>>>> -static u32 get_st_table_loc(struct pci_dev *pdev)
>>>> +u32 pcie_tph_get_st_table_loc(struct pci_dev *pdev)
>>>>    {
>>>>    	u32 reg;
>>>> @@ -163,6 +163,7 @@ static u32 get_st_table_loc(struct pci_dev *pdev)
>>>>    	return FIELD_GET(PCI_TPH_CAP_LOC_MASK, reg);
>>>>    }
>>>> +EXPORT_SYMBOL(pcie_tph_get_st_table_loc);
>>>
>>> OK by me, but I think we should add kernel-doc for the return value.
>>>
>>> With that doc added:
>>>
>>> Acked-by: Bjorn Helgaas <bhelgaas@google.com>
>>
>> Thanks Bjorn.
>>
>> We may add the below hunk.
>>
>> Can that work for you ?
> 
> No, because (a) it just restates the function name and doesn't say how
> to interpret the return value (you would need a PCIe spec to look it
> up) and (b) kernel-doc syntax would be "Return: " (see
> Documentation/doc-guide/kernel-doc.rst for examples).
> 

I see.

How about adding the below as part of V1 with your Acked-by: ?

diff --git a/drivers/pci/tph.c b/drivers/pci/tph.c
index 8f8457ec9adb..510173cc8b63 100644
--- a/drivers/pci/tph.c
+++ b/drivers/pci/tph.c
@@ -155,6 +155,15 @@ static u8 get_st_modes(struct pci_dev *pdev)
         return reg;
  }

+/**
+ * pcie_tph_get_st_table_loc - Return the device's ST table location
+ * @pdev: PCI device to query
+ *
+ * Return:
+ * * PCI_TPH_LOC_NONE - Not present
+ * * PCI_TPH_LOC_CAP  - Located in the TPH Requester Extended Capability
+ * * PCI_TPH_LOC_MSIX - Located in the MSI-X Table
+ */

Yishai

>> diff --git a/drivers/pci/tph.c b/drivers/pci/tph.c
>> index 8f8457ec9adb..385307a9a328 100644
>> --- a/drivers/pci/tph.c
>> +++ b/drivers/pci/tph.c
>> @@ -155,6 +155,12 @@ static u8 get_st_modes(struct pci_dev *pdev)
>>          return reg;
>>   }
>>
>> +/**
>> + * pcie_tph_get_st_table_loc - query the device for its ST table location
>> + * @pdev: PCI device to query
>> + *
>> + * Return the location of the ST table
>> + */
>>   u32 pcie_tph_get_st_table_loc(struct pci_dev *pdev)
>>   {
>>          u32 reg;
>>
>> Yishai
>>
>>>
>>>
>>>>    /*
>>>>     * Return the size of ST table. If ST table is not in TPH Requester Extended
>>>> @@ -174,7 +175,7 @@ u16 pcie_tph_get_st_table_size(struct pci_dev *pdev)
>>>>    	u32 loc;
>>>>    	/* Check ST table location first */
>>>> -	loc = get_st_table_loc(pdev);
>>>> +	loc = pcie_tph_get_st_table_loc(pdev);
>>>>    	/* Convert loc to match with PCI_TPH_LOC_* defined in pci_regs.h */
>>>>    	loc = FIELD_PREP(PCI_TPH_CAP_LOC_MASK, loc);
>>>> @@ -299,7 +300,7 @@ int pcie_tph_set_st_entry(struct pci_dev *pdev, unsigned int index, u16 tag)
>>>>    	 */
>>>>    	set_ctrl_reg_req_en(pdev, PCI_TPH_REQ_DISABLE);
>>>> -	loc = get_st_table_loc(pdev);
>>>> +	loc = pcie_tph_get_st_table_loc(pdev);
>>>>    	/* Convert loc to match with PCI_TPH_LOC_* */
>>>>    	loc = FIELD_PREP(PCI_TPH_CAP_LOC_MASK, loc);
>>>> diff --git a/include/linux/pci-tph.h b/include/linux/pci-tph.h
>>>> index 9e4e331b1603..ba28140ce670 100644
>>>> --- a/include/linux/pci-tph.h
>>>> +++ b/include/linux/pci-tph.h
>>>> @@ -29,6 +29,7 @@ int pcie_tph_get_cpu_st(struct pci_dev *dev,
>>>>    void pcie_disable_tph(struct pci_dev *pdev);
>>>>    int pcie_enable_tph(struct pci_dev *pdev, int mode);
>>>>    u16 pcie_tph_get_st_table_size(struct pci_dev *pdev);
>>>> +u32 pcie_tph_get_st_table_loc(struct pci_dev *pdev);
>>>>    #else
>>>>    static inline int pcie_tph_set_st_entry(struct pci_dev *pdev,
>>>>    					unsigned int index, u16 tag)
>>>>
>>>> -- 
>>>> 2.51.0
>>>>
>>
Re: [PATCH mlx5-next 1/2] PCI/TPH: Expose pcie_tph_get_st_table_loc()
Posted by Leon Romanovsky 3 months, 1 week ago
On Mon, Oct 27, 2025 at 11:34:01AM +0200, Leon Romanovsky wrote:
> From: Yishai Hadas <yishaih@nvidia.com>
> 
> Expose pcie_tph_get_st_table_loc() to be used by drivers as will be done
> in the next patch from the series.
> 
> Signed-off-by: Yishai Hadas <yishaih@nvidia.com>
> Signed-off-by: Edward Srouji <edwards@nvidia.com>
> Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
> ---
>  drivers/pci/tph.c       | 7 ++++---
>  include/linux/pci-tph.h | 1 +
>  2 files changed, 5 insertions(+), 3 deletions(-)

<...>

> -static u32 get_st_table_loc(struct pci_dev *pdev)
> +u32 pcie_tph_get_st_table_loc(struct pci_dev *pdev)
>  {
>  	u32 reg;
>  
> @@ -163,6 +163,7 @@ static u32 get_st_table_loc(struct pci_dev *pdev)
>  
>  	return FIELD_GET(PCI_TPH_CAP_LOC_MASK, reg);
>  }
> +EXPORT_SYMBOL(pcie_tph_get_st_table_loc);

Bjorn,

Are you ok with this change?

Thanks