[v1] Remove implicit devres from pci_intx()

[RFC PATCH 09/13] ata: Use always-managed version of pci_intx()

Posted by Philipp Stanner 2 months, 2 weeks ago

pci_intx() is a hybrid function which can sometimes be managed through
devres. To remove this hybrid nature from pci_intx(), it is necessary to
port users to either an always-managed or a never-managed version.

All users in ata enable their PCI-Device with pcim_enable_device(). Thus,
they need the always-managed version.

Replace pci_intx() with pci_intx_unmanaged().

Signed-off-by: Philipp Stanner <pstanner@redhat.com>
---
 drivers/ata/ahci.c       | 2 +-
 drivers/ata/ata_piix.c   | 2 +-
 drivers/ata/pata_rdc.c   | 2 +-
 drivers/ata/sata_sil24.c | 2 +-
 drivers/ata/sata_sis.c   | 2 +-
 drivers/ata/sata_uli.c   | 2 +-
 drivers/ata/sata_vsc.c   | 2 +-
 7 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index 45f63b09828a..9273ff3d4732 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -1985,7 +1985,7 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 	if (ahci_init_msi(pdev, n_ports, hpriv) < 0) {
 		/* legacy intx interrupts */
-		pci_intx(pdev, 1);
+		pcim_intx(pdev, 1);
 	}
 	hpriv->irq = pci_irq_vector(pdev, 0);
 
diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c
index 093b940bc953..d441246fa357 100644
--- a/drivers/ata/ata_piix.c
+++ b/drivers/ata/ata_piix.c
@@ -1725,7 +1725,7 @@ static int piix_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	 * message-signalled interrupts currently).
 	 */
 	if (port_flags & PIIX_FLAG_CHECKINTR)
-		pci_intx(pdev, 1);
+		pcim_intx(pdev, 1);
 
 	if (piix_check_450nx_errata(pdev)) {
 		/* This writes into the master table but it does not
diff --git a/drivers/ata/pata_rdc.c b/drivers/ata/pata_rdc.c
index 0a9689862f71..09792aac7f9d 100644
--- a/drivers/ata/pata_rdc.c
+++ b/drivers/ata/pata_rdc.c
@@ -340,7 +340,7 @@ static int rdc_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 		return rc;
 	host->private_data = hpriv;
 
-	pci_intx(pdev, 1);
+	pcim_intx(pdev, 1);
 
 	host->flags |= ATA_HOST_PARALLEL_SCAN;
 
diff --git a/drivers/ata/sata_sil24.c b/drivers/ata/sata_sil24.c
index 72c03cbdaff4..b771ebd41252 100644
--- a/drivers/ata/sata_sil24.c
+++ b/drivers/ata/sata_sil24.c
@@ -1317,7 +1317,7 @@ static int sil24_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 	if (sata_sil24_msi && !pci_enable_msi(pdev)) {
 		dev_info(&pdev->dev, "Using MSI\n");
-		pci_intx(pdev, 0);
+		pcim_intx(pdev, 0);
 	}
 
 	pci_set_master(pdev);
diff --git a/drivers/ata/sata_sis.c b/drivers/ata/sata_sis.c
index ef8724986de3..b8b6d9eff3b8 100644
--- a/drivers/ata/sata_sis.c
+++ b/drivers/ata/sata_sis.c
@@ -290,7 +290,7 @@ static int sis_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	}
 
 	pci_set_master(pdev);
-	pci_intx(pdev, 1);
+	pcim_intx(pdev, 1);
 	return ata_host_activate(host, pdev->irq, ata_bmdma_interrupt,
 				 IRQF_SHARED, &sis_sht);
 }
diff --git a/drivers/ata/sata_uli.c b/drivers/ata/sata_uli.c
index 60ea45926cd1..52894ff49dcb 100644
--- a/drivers/ata/sata_uli.c
+++ b/drivers/ata/sata_uli.c
@@ -221,7 +221,7 @@ static int uli_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	}
 
 	pci_set_master(pdev);
-	pci_intx(pdev, 1);
+	pcim_intx(pdev, 1);
 	return ata_host_activate(host, pdev->irq, ata_bmdma_interrupt,
 				 IRQF_SHARED, &uli_sht);
 }
diff --git a/drivers/ata/sata_vsc.c b/drivers/ata/sata_vsc.c
index d39b87537168..a53a2dfc1e17 100644
--- a/drivers/ata/sata_vsc.c
+++ b/drivers/ata/sata_vsc.c
@@ -384,7 +384,7 @@ static int vsc_sata_init_one(struct pci_dev *pdev,
 		pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, 0x80);
 
 	if (pci_enable_msi(pdev) == 0)
-		pci_intx(pdev, 0);
+		pcim_intx(pdev, 0);
 
 	/*
 	 * Config offset 0x98 is "Extended Control and Status Register 0"
-- 
2.46.1

Re: [RFC PATCH 09/13] ata: Use always-managed version of pci_intx()

Posted by Damien Le Moal 2 months, 2 weeks ago

On 10/9/24 17:35, Philipp Stanner wrote:
> pci_intx() is a hybrid function which can sometimes be managed through
> devres. To remove this hybrid nature from pci_intx(), it is necessary to
> port users to either an always-managed or a never-managed version.
> 
> All users in ata enable their PCI-Device with pcim_enable_device(). Thus,
> they need the always-managed version.
> 
> Replace pci_intx() with pci_intx_unmanaged().

This contradicts the sentence above and the patche replaces pci_intx() with
pcim_intx()... So s/pci_intx_unmanaged/pcim_intx in the above sentence ?

> 
> Signed-off-by: Philipp Stanner <pstanner@redhat.com>
> ---
>  drivers/ata/ahci.c       | 2 +-
>  drivers/ata/ata_piix.c   | 2 +-
>  drivers/ata/pata_rdc.c   | 2 +-
>  drivers/ata/sata_sil24.c | 2 +-
>  drivers/ata/sata_sis.c   | 2 +-
>  drivers/ata/sata_uli.c   | 2 +-
>  drivers/ata/sata_vsc.c   | 2 +-
>  7 files changed, 7 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
> index 45f63b09828a..9273ff3d4732 100644
> --- a/drivers/ata/ahci.c
> +++ b/drivers/ata/ahci.c
> @@ -1985,7 +1985,7 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
>  
>  	if (ahci_init_msi(pdev, n_ports, hpriv) < 0) {
>  		/* legacy intx interrupts */
> -		pci_intx(pdev, 1);
> +		pcim_intx(pdev, 1);
>  	}
>  	hpriv->irq = pci_irq_vector(pdev, 0);
>  
> diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c
> index 093b940bc953..d441246fa357 100644
> --- a/drivers/ata/ata_piix.c
> +++ b/drivers/ata/ata_piix.c
> @@ -1725,7 +1725,7 @@ static int piix_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
>  	 * message-signalled interrupts currently).
>  	 */
>  	if (port_flags & PIIX_FLAG_CHECKINTR)
> -		pci_intx(pdev, 1);
> +		pcim_intx(pdev, 1);
>  
>  	if (piix_check_450nx_errata(pdev)) {
>  		/* This writes into the master table but it does not
> diff --git a/drivers/ata/pata_rdc.c b/drivers/ata/pata_rdc.c
> index 0a9689862f71..09792aac7f9d 100644
> --- a/drivers/ata/pata_rdc.c
> +++ b/drivers/ata/pata_rdc.c
> @@ -340,7 +340,7 @@ static int rdc_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
>  		return rc;
>  	host->private_data = hpriv;
>  
> -	pci_intx(pdev, 1);
> +	pcim_intx(pdev, 1);
>  
>  	host->flags |= ATA_HOST_PARALLEL_SCAN;
>  
> diff --git a/drivers/ata/sata_sil24.c b/drivers/ata/sata_sil24.c
> index 72c03cbdaff4..b771ebd41252 100644
> --- a/drivers/ata/sata_sil24.c
> +++ b/drivers/ata/sata_sil24.c
> @@ -1317,7 +1317,7 @@ static int sil24_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
>  
>  	if (sata_sil24_msi && !pci_enable_msi(pdev)) {
>  		dev_info(&pdev->dev, "Using MSI\n");
> -		pci_intx(pdev, 0);
> +		pcim_intx(pdev, 0);
>  	}
>  
>  	pci_set_master(pdev);
> diff --git a/drivers/ata/sata_sis.c b/drivers/ata/sata_sis.c
> index ef8724986de3..b8b6d9eff3b8 100644
> --- a/drivers/ata/sata_sis.c
> +++ b/drivers/ata/sata_sis.c
> @@ -290,7 +290,7 @@ static int sis_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
>  	}
>  
>  	pci_set_master(pdev);
> -	pci_intx(pdev, 1);
> +	pcim_intx(pdev, 1);
>  	return ata_host_activate(host, pdev->irq, ata_bmdma_interrupt,
>  				 IRQF_SHARED, &sis_sht);
>  }
> diff --git a/drivers/ata/sata_uli.c b/drivers/ata/sata_uli.c
> index 60ea45926cd1..52894ff49dcb 100644
> --- a/drivers/ata/sata_uli.c
> +++ b/drivers/ata/sata_uli.c
> @@ -221,7 +221,7 @@ static int uli_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
>  	}
>  
>  	pci_set_master(pdev);
> -	pci_intx(pdev, 1);
> +	pcim_intx(pdev, 1);
>  	return ata_host_activate(host, pdev->irq, ata_bmdma_interrupt,
>  				 IRQF_SHARED, &uli_sht);
>  }
> diff --git a/drivers/ata/sata_vsc.c b/drivers/ata/sata_vsc.c
> index d39b87537168..a53a2dfc1e17 100644
> --- a/drivers/ata/sata_vsc.c
> +++ b/drivers/ata/sata_vsc.c
> @@ -384,7 +384,7 @@ static int vsc_sata_init_one(struct pci_dev *pdev,
>  		pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, 0x80);
>  
>  	if (pci_enable_msi(pdev) == 0)
> -		pci_intx(pdev, 0);
> +		pcim_intx(pdev, 0);
>  
>  	/*
>  	 * Config offset 0x98 is "Extended Control and Status Register 0"


-- 
Damien Le Moal
Western Digital Research

Re: [RFC PATCH 09/13] ata: Use always-managed version of pci_intx()

Posted by Philipp Stanner 2 months, 2 weeks ago

On Wed, 2024-10-09 at 17:51 +0900, Damien Le Moal wrote:
> On 10/9/24 17:35, Philipp Stanner wrote:
> > pci_intx() is a hybrid function which can sometimes be managed
> > through
> > devres. To remove this hybrid nature from pci_intx(), it is
> > necessary to
> > port users to either an always-managed or a never-managed version.
> > 
> > All users in ata enable their PCI-Device with pcim_enable_device().
> > Thus,
> > they need the always-managed version.
> > 
> > Replace pci_intx() with pci_intx_unmanaged().
> 
> This contradicts the sentence above and the patche replaces
> pci_intx() with
> pcim_intx()... So s/pci_intx_unmanaged/pcim_intx in the above
> sentence ?

Yes, absolutely correct, the commit message is broken. The code itself
is fine, I grepped through it for pci_enable / pcim_enable

P.

> 
> > 
> > Signed-off-by: Philipp Stanner <pstanner@redhat.com>
> > ---
> >  drivers/ata/ahci.c       | 2 +-
> >  drivers/ata/ata_piix.c   | 2 +-
> >  drivers/ata/pata_rdc.c   | 2 +-
> >  drivers/ata/sata_sil24.c | 2 +-
> >  drivers/ata/sata_sis.c   | 2 +-
> >  drivers/ata/sata_uli.c   | 2 +-
> >  drivers/ata/sata_vsc.c   | 2 +-
> >  7 files changed, 7 insertions(+), 7 deletions(-)
> > 
> > diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
> > index 45f63b09828a..9273ff3d4732 100644
> > --- a/drivers/ata/ahci.c
> > +++ b/drivers/ata/ahci.c
> > @@ -1985,7 +1985,7 @@ static int ahci_init_one(struct pci_dev
> > *pdev, const struct pci_device_id *ent)
> >  
> >  	if (ahci_init_msi(pdev, n_ports, hpriv) < 0) {
> >  		/* legacy intx interrupts */
> > -		pci_intx(pdev, 1);
> > +		pcim_intx(pdev, 1);
> >  	}
> >  	hpriv->irq = pci_irq_vector(pdev, 0);
> >  
> > diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c
> > index 093b940bc953..d441246fa357 100644
> > --- a/drivers/ata/ata_piix.c
> > +++ b/drivers/ata/ata_piix.c
> > @@ -1725,7 +1725,7 @@ static int piix_init_one(struct pci_dev
> > *pdev, const struct pci_device_id *ent)
> >  	 * message-signalled interrupts currently).
> >  	 */
> >  	if (port_flags & PIIX_FLAG_CHECKINTR)
> > -		pci_intx(pdev, 1);
> > +		pcim_intx(pdev, 1);
> >  
> >  	if (piix_check_450nx_errata(pdev)) {
> >  		/* This writes into the master table but it does
> > not
> > diff --git a/drivers/ata/pata_rdc.c b/drivers/ata/pata_rdc.c
> > index 0a9689862f71..09792aac7f9d 100644
> > --- a/drivers/ata/pata_rdc.c
> > +++ b/drivers/ata/pata_rdc.c
> > @@ -340,7 +340,7 @@ static int rdc_init_one(struct pci_dev *pdev,
> > const struct pci_device_id *ent)
> >  		return rc;
> >  	host->private_data = hpriv;
> >  
> > -	pci_intx(pdev, 1);
> > +	pcim_intx(pdev, 1);
> >  
> >  	host->flags |= ATA_HOST_PARALLEL_SCAN;
> >  
> > diff --git a/drivers/ata/sata_sil24.c b/drivers/ata/sata_sil24.c
> > index 72c03cbdaff4..b771ebd41252 100644
> > --- a/drivers/ata/sata_sil24.c
> > +++ b/drivers/ata/sata_sil24.c
> > @@ -1317,7 +1317,7 @@ static int sil24_init_one(struct pci_dev
> > *pdev, const struct pci_device_id *ent)
> >  
> >  	if (sata_sil24_msi && !pci_enable_msi(pdev)) {
> >  		dev_info(&pdev->dev, "Using MSI\n");
> > -		pci_intx(pdev, 0);
> > +		pcim_intx(pdev, 0);
> >  	}
> >  
> >  	pci_set_master(pdev);
> > diff --git a/drivers/ata/sata_sis.c b/drivers/ata/sata_sis.c
> > index ef8724986de3..b8b6d9eff3b8 100644
> > --- a/drivers/ata/sata_sis.c
> > +++ b/drivers/ata/sata_sis.c
> > @@ -290,7 +290,7 @@ static int sis_init_one(struct pci_dev *pdev,
> > const struct pci_device_id *ent)
> >  	}
> >  
> >  	pci_set_master(pdev);
> > -	pci_intx(pdev, 1);
> > +	pcim_intx(pdev, 1);
> >  	return ata_host_activate(host, pdev->irq,
> > ata_bmdma_interrupt,
> >  				 IRQF_SHARED, &sis_sht);
> >  }
> > diff --git a/drivers/ata/sata_uli.c b/drivers/ata/sata_uli.c
> > index 60ea45926cd1..52894ff49dcb 100644
> > --- a/drivers/ata/sata_uli.c
> > +++ b/drivers/ata/sata_uli.c
> > @@ -221,7 +221,7 @@ static int uli_init_one(struct pci_dev *pdev,
> > const struct pci_device_id *ent)
> >  	}
> >  
> >  	pci_set_master(pdev);
> > -	pci_intx(pdev, 1);
> > +	pcim_intx(pdev, 1);
> >  	return ata_host_activate(host, pdev->irq,
> > ata_bmdma_interrupt,
> >  				 IRQF_SHARED, &uli_sht);
> >  }
> > diff --git a/drivers/ata/sata_vsc.c b/drivers/ata/sata_vsc.c
> > index d39b87537168..a53a2dfc1e17 100644
> > --- a/drivers/ata/sata_vsc.c
> > +++ b/drivers/ata/sata_vsc.c
> > @@ -384,7 +384,7 @@ static int vsc_sata_init_one(struct pci_dev
> > *pdev,
> >  		pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE,
> > 0x80);
> >  
> >  	if (pci_enable_msi(pdev) == 0)
> > -		pci_intx(pdev, 0);
> > +		pcim_intx(pdev, 0);
> >  
> >  	/*
> >  	 * Config offset 0x98 is "Extended Control and Status
> > Register 0"
> 
>