[PATCH 1/6] x86: Use PCI_HEADER_TYPE_* instead of literals

[PATCH 1/6] x86: Use PCI_HEADER_TYPE_* instead of literals

[Ilpo Järvinen]

Replace 0x7f and 0x80 literals with PCI_HEADER_TYPE_* defines.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
---
 arch/x86/kernel/aperture_64.c  | 3 +--
 arch/x86/kernel/early-quirks.c | 4 ++--
 2 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/arch/x86/kernel/aperture_64.c b/arch/x86/kernel/aperture_64.c
index 4feaa670d578..89c0c8a3fc7e 100644
--- a/arch/x86/kernel/aperture_64.c
+++ b/arch/x86/kernel/aperture_64.c
@@ -259,10 +259,9 @@ static u32 __init search_agp_bridge(u32 *order, int *valid_agp)
 							order);
 				}
 
-				/* No multi-function device? */
 				type = read_pci_config_byte(bus, slot, func,
 							       PCI_HEADER_TYPE);
-				if (!(type & 0x80))
+				if (!(type & PCI_HEADER_TYPE_MFD))
 					break;
 			}
 		}
diff --git a/arch/x86/kernel/early-quirks.c b/arch/x86/kernel/early-quirks.c
index a6c1867fc7aa..59f4aefc6bc1 100644
--- a/arch/x86/kernel/early-quirks.c
+++ b/arch/x86/kernel/early-quirks.c
@@ -779,13 +779,13 @@ static int __init check_dev_quirk(int num, int slot, int func)
 	type = read_pci_config_byte(num, slot, func,
 				    PCI_HEADER_TYPE);
 
-	if ((type & 0x7f) == PCI_HEADER_TYPE_BRIDGE) {
+	if ((type & PCI_HEADER_TYPE_MASK) == PCI_HEADER_TYPE_BRIDGE) {
 		sec = read_pci_config_byte(num, slot, func, PCI_SECONDARY_BUS);
 		if (sec > num)
 			early_pci_scan_bus(sec);
 	}
 
-	if (!(type & 0x80))
+	if (!(type & PCI_HEADER_TYPE_MFD))
 		return -1;
 
 	return 0;
-- 
2.30.2

[PATCH 2/6] powerpc/fsl-pci: Use PCI_HEADER_TYPE_MASK instead of literal

[Ilpo Järvinen]

Replace 0x7f literals with PCI_HEADER_TYPE_MASK.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
---
 arch/powerpc/sysdev/fsl_pci.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/sysdev/fsl_pci.c b/arch/powerpc/sysdev/fsl_pci.c
index 3868483fbe29..ef7707ea0db7 100644
--- a/arch/powerpc/sysdev/fsl_pci.c
+++ b/arch/powerpc/sysdev/fsl_pci.c
@@ -54,7 +54,7 @@ static void quirk_fsl_pcie_early(struct pci_dev *dev)
 
 	/* if we aren't in host mode don't bother */
 	pci_read_config_byte(dev, PCI_HEADER_TYPE, &hdr_type);
-	if ((hdr_type & 0x7f) != PCI_HEADER_TYPE_BRIDGE)
+	if ((hdr_type & PCI_HEADER_TYPE_MASK) != PCI_HEADER_TYPE_BRIDGE)
 		return;
 
 	dev->class = PCI_CLASS_BRIDGE_PCI_NORMAL;
@@ -581,7 +581,7 @@ static int fsl_add_bridge(struct platform_device *pdev, int is_primary)
 		hose->ops = &fsl_indirect_pcie_ops;
 		/* For PCIE read HEADER_TYPE to identify controller mode */
 		early_read_config_byte(hose, 0, 0, PCI_HEADER_TYPE, &hdr_type);
-		if ((hdr_type & 0x7f) != PCI_HEADER_TYPE_BRIDGE)
+		if ((hdr_type & PCI_HEADER_TYPE_MASK) != PCI_HEADER_TYPE_BRIDGE)
 			goto no_bridge;
 
 	} else {
-- 
2.30.2

[PATCH 3/6] xtensa: Use PCI_HEADER_TYPE_MFD instead of literal

[Ilpo Järvinen]

Replace literal 0x80 with PCI_HEADER_TYPE_MFD. While at it, convert
found_multi into boolean.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
---
 arch/xtensa/lib/pci-auto.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/arch/xtensa/lib/pci-auto.c b/arch/xtensa/lib/pci-auto.c
index aa6752237985..05fc02f9e1c7 100644
--- a/arch/xtensa/lib/pci-auto.c
+++ b/arch/xtensa/lib/pci-auto.c
@@ -11,6 +11,7 @@
  * Based on work from Matt Porter <mporter@mvista.com>
  */
 
+#include <linux/bitfield.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/pci.h>
@@ -222,10 +223,11 @@ pciauto_postscan_setup_bridge(struct pci_dev *dev, int current_bus, int sub_bus,
 
 int __init pciauto_bus_scan(struct pci_controller *pci_ctrl, int current_bus)
 {
-	int sub_bus, pci_devfn, pci_class, cmdstat, found_multi=0;
+	int sub_bus, pci_devfn, pci_class, cmdstat;
 	unsigned short vid;
 	unsigned char header_type;
 	struct pci_dev *dev = &pciauto_dev;
+	bool found_multi = false;
 
 	pciauto_dev.bus = &pciauto_bus;
 	pciauto_dev.sysdata = pci_ctrl;
@@ -261,11 +263,11 @@ int __init pciauto_bus_scan(struct pci_controller *pci_ctrl, int current_bus)
 			continue;
 
 		if (!PCI_FUNC(pci_devfn))
-			found_multi = header_type & 0x80;
+			found_multi = FIELD_GET(PCI_HEADER_TYPE_MFD, header_type);
 		pci_read_config_word(dev, PCI_VENDOR_ID, &vid);
 
 		if (vid == 0xffff || vid == 0x0000) {
-			found_multi = 0;
+			found_multi = false;
 			continue;
 		}
 
-- 
2.30.2

Re: [PATCH 3/6] xtensa: Use PCI_HEADER_TYPE_MFD instead of literal

[Max Filippov]

On Fri, Nov 24, 2023 at 1:09 AM Ilpo Järvinen
<ilpo.jarvinen@linux.intel.com> wrote:
>
> Replace literal 0x80 with PCI_HEADER_TYPE_MFD. While at it, convert
> found_multi into boolean.
>
> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
> ---
>  arch/xtensa/lib/pci-auto.c | 8 +++++---
>  1 file changed, 5 insertions(+), 3 deletions(-)

Thanks. Applied to my xtensa tree.

-- 
Thanks.
-- Max

[PATCH 4/6] scsi: lpfc: Use PCI_HEADER_TYPE_MFD instead of literal

[Ilpo Järvinen]

Replace literal 0x80 with PCI_HEADER_TYPE_MFD.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
---
 drivers/scsi/lpfc/lpfc_sli.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index 9386e7b44750..4ac6afd3c2fe 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -4875,7 +4875,7 @@ void lpfc_reset_barrier(struct lpfc_hba *phba)
 	lockdep_assert_held(&phba->hbalock);
 
 	pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype);
-	if (hdrtype != 0x80 ||
+	if (hdrtype != PCI_HEADER_TYPE_MFD ||
 	    (FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID &&
 	     FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID))
 		return;
-- 
2.30.2

Re: [PATCH 4/6] scsi: lpfc: Use PCI_HEADER_TYPE_MFD instead of literal

[Martin K. Petersen]

Ilpo,

> Replace literal 0x80 with PCI_HEADER_TYPE_MFD.

Applied to 6.8/scsi-staging, thanks!

-- 
Martin K. Petersen	Oracle Linux Engineering

[PATCH 5/6] EDAC: Use PCI_HEADER_TYPE_MASK instead of literals

[Ilpo Järvinen]

Replace literal 0x7f with PCI_HEADER_TYPE_MASK.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
---
 drivers/edac/edac_pci_sysfs.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/edac/edac_pci_sysfs.c b/drivers/edac/edac_pci_sysfs.c
index 287cc51dbc86..901d4cd3ca38 100644
--- a/drivers/edac/edac_pci_sysfs.c
+++ b/drivers/edac/edac_pci_sysfs.c
@@ -521,7 +521,7 @@ static void edac_pci_dev_parity_clear(struct pci_dev *dev)
 	/* read the device TYPE, looking for bridges */
 	pci_read_config_byte(dev, PCI_HEADER_TYPE, &header_type);
 
-	if ((header_type & 0x7F) == PCI_HEADER_TYPE_BRIDGE)
+	if ((header_type & PCI_HEADER_TYPE_MASK) == PCI_HEADER_TYPE_BRIDGE)
 		get_pci_parity_status(dev, 1);
 }
 
@@ -583,7 +583,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev)
 	edac_dbg(4, "PCI HEADER TYPE= 0x%02x %s\n",
 		 header_type, dev_name(&dev->dev));
 
-	if ((header_type & 0x7F) == PCI_HEADER_TYPE_BRIDGE) {
+	if ((header_type & PCI_HEADER_TYPE_MASK) == PCI_HEADER_TYPE_BRIDGE) {
 		/* On bridges, need to examine secondary status register  */
 		status = get_pci_parity_status(dev, 1);
 
-- 
2.30.2

Re: [PATCH 5/6] EDAC: Use PCI_HEADER_TYPE_MASK instead of literals

[Borislav Petkov]

On Fri, Nov 24, 2023 at 11:09:17AM +0200, Ilpo Järvinen wrote:
> Replace literal 0x7f with PCI_HEADER_TYPE_MASK.
> 
> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
> ---
>  drivers/edac/edac_pci_sysfs.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)

Applied, thanks.

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette

[PATCH 6/6] bcma: Use PCI_HEADER_TYPE_MASK instead of literal

[Ilpo Järvinen]

Replace literal 0x7f with PCI_HEADER_TYPE_MASK.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
---
 drivers/bcma/driver_pci_host.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/bcma/driver_pci_host.c b/drivers/bcma/driver_pci_host.c
index aa0581cda718..ed3be52ab63d 100644
--- a/drivers/bcma/driver_pci_host.c
+++ b/drivers/bcma/driver_pci_host.c
@@ -280,7 +280,7 @@ static u8 bcma_find_pci_capability(struct bcma_drv_pci *pc, unsigned int dev,
 	/* check for Header type 0 */
 	bcma_extpci_read_config(pc, dev, func, PCI_HEADER_TYPE, &byte_val,
 				sizeof(u8));
-	if ((byte_val & 0x7F) != PCI_HEADER_TYPE_NORMAL)
+	if ((byte_val & PCI_HEADER_TYPE_MASK) != PCI_HEADER_TYPE_NORMAL)
 		return cap_ptr;
 
 	/* check if the capability pointer field exists */
-- 
2.30.2

Re: [PATCH 6/6] bcma: Use PCI_HEADER_TYPE_MASK instead of literal

[Kalle Valo]

Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> writes:

> Replace literal 0x7f with PCI_HEADER_TYPE_MASK.
>
> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

I couldn't find the cover letter. Should I take this patch to
wireless-next or do you have other plans for this?

-- 
https://patchwork.kernel.org/project/linux-wireless/list/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches

Re: [PATCH 6/6] bcma: Use PCI_HEADER_TYPE_MASK instead of literal

[Ilpo Järvinen]

[-- Attachment #1: Type: text/plain, Size: 434 bytes --]

On Mon, 27 Nov 2023, Kalle Valo wrote:

> Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> writes:
> 
> > Replace literal 0x7f with PCI_HEADER_TYPE_MASK.
> >
> > Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
> 
> I couldn't find the cover letter. Should I take this patch to
> wireless-next or do you have other plans for this?

Just take it through the normal trees, so in this case wireless-next. 
Thank you.

-- 
 i.

Re: [PATCH 6/6] bcma: Use PCI_HEADER_TYPE_MASK instead of literal

[Kalle Valo]

Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> wrote:

> Replace literal 0x7f with PCI_HEADER_TYPE_MASK.
> 
> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

Patch applied to wireless-next.git, thanks.

ac586b8401c9 bcma: Use PCI_HEADER_TYPE_MASK instead of literal

-- 
https://patchwork.kernel.org/project/linux-wireless/patch/20231124090919.23687-6-ilpo.jarvinen@linux.intel.com/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches

Re: [PATCH 1/6] x86: Use PCI_HEADER_TYPE_* instead of literals

[Bjorn Helgaas]

On Fri, Nov 24, 2023 at 11:09:13AM +0200, Ilpo Järvinen wrote:
> Replace 0x7f and 0x80 literals with PCI_HEADER_TYPE_* defines.
> 
> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

Applied entire series on the PCI "enumeration" branch for v6.8,
thanks!

If anybody wants to take pieces separately, let me know and I'll drop
from PCI.

> ---
>  arch/x86/kernel/aperture_64.c  | 3 +--
>  arch/x86/kernel/early-quirks.c | 4 ++--
>  2 files changed, 3 insertions(+), 4 deletions(-)
> 
> diff --git a/arch/x86/kernel/aperture_64.c b/arch/x86/kernel/aperture_64.c
> index 4feaa670d578..89c0c8a3fc7e 100644
> --- a/arch/x86/kernel/aperture_64.c
> +++ b/arch/x86/kernel/aperture_64.c
> @@ -259,10 +259,9 @@ static u32 __init search_agp_bridge(u32 *order, int *valid_agp)
>  							order);
>  				}
>  
> -				/* No multi-function device? */
>  				type = read_pci_config_byte(bus, slot, func,
>  							       PCI_HEADER_TYPE);
> -				if (!(type & 0x80))
> +				if (!(type & PCI_HEADER_TYPE_MFD))
>  					break;
>  			}
>  		}
> diff --git a/arch/x86/kernel/early-quirks.c b/arch/x86/kernel/early-quirks.c
> index a6c1867fc7aa..59f4aefc6bc1 100644
> --- a/arch/x86/kernel/early-quirks.c
> +++ b/arch/x86/kernel/early-quirks.c
> @@ -779,13 +779,13 @@ static int __init check_dev_quirk(int num, int slot, int func)
>  	type = read_pci_config_byte(num, slot, func,
>  				    PCI_HEADER_TYPE);
>  
> -	if ((type & 0x7f) == PCI_HEADER_TYPE_BRIDGE) {
> +	if ((type & PCI_HEADER_TYPE_MASK) == PCI_HEADER_TYPE_BRIDGE) {
>  		sec = read_pci_config_byte(num, slot, func, PCI_SECONDARY_BUS);
>  		if (sec > num)
>  			early_pci_scan_bus(sec);
>  	}
>  
> -	if (!(type & 0x80))
> +	if (!(type & PCI_HEADER_TYPE_MFD))
>  		return -1;
>  
>  	return 0;
> -- 
> 2.30.2
> 

Re: [PATCH 1/6] x86: Use PCI_HEADER_TYPE_* instead of literals

[Bjorn Helgaas]

[+cc scsi, powerpc folks]

On Fri, Dec 01, 2023 at 02:44:47PM -0600, Bjorn Helgaas wrote:
> On Fri, Nov 24, 2023 at 11:09:13AM +0200, Ilpo Järvinen wrote:
> > Replace 0x7f and 0x80 literals with PCI_HEADER_TYPE_* defines.
> > 
> > Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
> 
> Applied entire series on the PCI "enumeration" branch for v6.8,
> thanks!
> 
> If anybody wants to take pieces separately, let me know and I'll drop
> from PCI.

OK, b4 picked up the entire series but I was only cc'd on this first
patch, so I missed the responses about EDAC, xtensa, bcma already
being applied elsewhere.

So I kept these in the PCI tree:

  420ac76610d7 ("scsi: lpfc: Use PCI_HEADER_TYPE_MFD instead of literal")
  3773343dd890 ("powerpc/fsl-pci: Use PCI_HEADER_TYPE_MASK instead of literal")
  197e0da1f1a3 ("x86/pci: Use PCI_HEADER_TYPE_* instead of literals")

and dropped the others.

x86, SCSI, powerpc folks, if you want to take these instead, let me
know and I'll drop them.

> > ---
> >  arch/x86/kernel/aperture_64.c  | 3 +--
> >  arch/x86/kernel/early-quirks.c | 4 ++--
> >  2 files changed, 3 insertions(+), 4 deletions(-)
> > 
> > diff --git a/arch/x86/kernel/aperture_64.c b/arch/x86/kernel/aperture_64.c
> > index 4feaa670d578..89c0c8a3fc7e 100644
> > --- a/arch/x86/kernel/aperture_64.c
> > +++ b/arch/x86/kernel/aperture_64.c
> > @@ -259,10 +259,9 @@ static u32 __init search_agp_bridge(u32 *order, int *valid_agp)
> >  							order);
> >  				}
> >  
> > -				/* No multi-function device? */
> >  				type = read_pci_config_byte(bus, slot, func,
> >  							       PCI_HEADER_TYPE);
> > -				if (!(type & 0x80))
> > +				if (!(type & PCI_HEADER_TYPE_MFD))
> >  					break;
> >  			}
> >  		}
> > diff --git a/arch/x86/kernel/early-quirks.c b/arch/x86/kernel/early-quirks.c
> > index a6c1867fc7aa..59f4aefc6bc1 100644
> > --- a/arch/x86/kernel/early-quirks.c
> > +++ b/arch/x86/kernel/early-quirks.c
> > @@ -779,13 +779,13 @@ static int __init check_dev_quirk(int num, int slot, int func)
> >  	type = read_pci_config_byte(num, slot, func,
> >  				    PCI_HEADER_TYPE);
> >  
> > -	if ((type & 0x7f) == PCI_HEADER_TYPE_BRIDGE) {
> > +	if ((type & PCI_HEADER_TYPE_MASK) == PCI_HEADER_TYPE_BRIDGE) {
> >  		sec = read_pci_config_byte(num, slot, func, PCI_SECONDARY_BUS);
> >  		if (sec > num)
> >  			early_pci_scan_bus(sec);
> >  	}
> >  
> > -	if (!(type & 0x80))
> > +	if (!(type & PCI_HEADER_TYPE_MFD))
> >  		return -1;
> >  
> >  	return 0;
> > -- 
> > 2.30.2
> > 

Re: [PATCH 1/6] x86: Use PCI_HEADER_TYPE_* instead of literals

[Michael Ellerman]

Bjorn Helgaas <helgaas@kernel.org> writes:
> [+cc scsi, powerpc folks]
>
> On Fri, Dec 01, 2023 at 02:44:47PM -0600, Bjorn Helgaas wrote:
>> On Fri, Nov 24, 2023 at 11:09:13AM +0200, Ilpo Järvinen wrote:
>> > Replace 0x7f and 0x80 literals with PCI_HEADER_TYPE_* defines.
>> > 
>> > Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
>> 
>> Applied entire series on the PCI "enumeration" branch for v6.8,
>> thanks!
>> 
>> If anybody wants to take pieces separately, let me know and I'll drop
>> from PCI.
>
> OK, b4 picked up the entire series but I was only cc'd on this first
> patch, so I missed the responses about EDAC, xtensa, bcma already
> being applied elsewhere.
>
> So I kept these in the PCI tree:
>
>   420ac76610d7 ("scsi: lpfc: Use PCI_HEADER_TYPE_MFD instead of literal")
>   3773343dd890 ("powerpc/fsl-pci: Use PCI_HEADER_TYPE_MASK instead of literal")
>   197e0da1f1a3 ("x86/pci: Use PCI_HEADER_TYPE_* instead of literals")
>
> and dropped the others.
>
> x86, SCSI, powerpc folks, if you want to take these instead, let me
> know and I'll drop them.

Nah that's fine, you keep them.

cheers

Re: [PATCH 1/6] x86: Use PCI_HEADER_TYPE_* instead of literals

[Martin K. Petersen]

Bjorn,

> So I kept these in the PCI tree:
>
>   420ac76610d7 ("scsi: lpfc: Use PCI_HEADER_TYPE_MFD instead of literal")

I merged this without seeing your note but I haven't pushed yet so I'll
just drop the commit.

-- 
Martin K. Petersen	Oracle Linux Engineering