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[V4,01/26] alpha/PCI: deprecate pci_get_bus_and_slot()

Message ID 1513661883-28662-2-git-send-email-okaya@codeaurora.org
State Accepted
Headers show
Series PCI: deprecate pci_get_bus_and_slot() | expand

Commit Message

Sinan Kaya Dec. 19, 2017, 5:37 a.m. UTC
pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
where a PCI device is present. This restricts the device drivers to be
reused for other domain numbers.

Use pci_get_domain_bus_and_slot() with a domain number of 0 where we can't
extract the domain number. Other places, use the actual domain number from
the device.

Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
---
 arch/alpha/kernel/pci.c          | 2 +-
 arch/alpha/kernel/sys_nautilus.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

Comments

Sinan Kaya Jan. 3, 2018, 12:43 p.m. UTC | #1
On 12/19/2017 12:37 AM, Sinan Kaya wrote:
> pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
> where a PCI device is present. This restricts the device drivers to be
> reused for other domain numbers.
> 
> Use pci_get_domain_bus_and_slot() with a domain number of 0 where we can't
> extract the domain number. Other places, use the actual domain number from
> the device.
> 
> Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
> ---
>  arch/alpha/kernel/pci.c          | 2 +-
>  arch/alpha/kernel/sys_nautilus.c | 2 +-
>  2 files changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/alpha/kernel/pci.c b/arch/alpha/kernel/pci.c
> index 87da005..2e86ebb 100644
> --- a/arch/alpha/kernel/pci.c
> +++ b/arch/alpha/kernel/pci.c
> @@ -425,7 +425,7 @@ struct resource * __init
>  		if (bus == 0 && dfn == 0) {
>  			hose = pci_isa_hose;
>  		} else {
> -			dev = pci_get_bus_and_slot(bus, dfn);
> +			dev = pci_get_domain_bus_and_slot(0, bus, dfn);
>  			if (!dev)
>  				return -ENODEV;
>  			hose = dev->sysdata;
> diff --git a/arch/alpha/kernel/sys_nautilus.c b/arch/alpha/kernel/sys_nautilus.c
> index 239dc0e..ff4f54b 100644
> --- a/arch/alpha/kernel/sys_nautilus.c
> +++ b/arch/alpha/kernel/sys_nautilus.c
> @@ -237,7 +237,7 @@
>  	bus = hose->bus = bridge->bus;
>  	pcibios_claim_one_bus(bus);
>  
> -	irongate = pci_get_bus_and_slot(0, 0);
> +	irongate = pci_get_domain_bus_and_slot(pci_domain_nr(bus), 0, 0);
>  	bus->self = irongate;
>  	bus->resource[0] = &irongate_io;
>  	bus->resource[1] = &irongate_mem;
> 

Any feedback here? most of the remaining patches have the ACK except these.
diff mbox series

Patch

diff --git a/arch/alpha/kernel/pci.c b/arch/alpha/kernel/pci.c
index 87da005..2e86ebb 100644
--- a/arch/alpha/kernel/pci.c
+++ b/arch/alpha/kernel/pci.c
@@ -425,7 +425,7 @@  struct resource * __init
 		if (bus == 0 && dfn == 0) {
 			hose = pci_isa_hose;
 		} else {
-			dev = pci_get_bus_and_slot(bus, dfn);
+			dev = pci_get_domain_bus_and_slot(0, bus, dfn);
 			if (!dev)
 				return -ENODEV;
 			hose = dev->sysdata;
diff --git a/arch/alpha/kernel/sys_nautilus.c b/arch/alpha/kernel/sys_nautilus.c
index 239dc0e..ff4f54b 100644
--- a/arch/alpha/kernel/sys_nautilus.c
+++ b/arch/alpha/kernel/sys_nautilus.c
@@ -237,7 +237,7 @@ 
 	bus = hose->bus = bridge->bus;
 	pcibios_claim_one_bus(bus);
 
-	irongate = pci_get_bus_and_slot(0, 0);
+	irongate = pci_get_domain_bus_and_slot(pci_domain_nr(bus), 0, 0);
 	bus->self = irongate;
 	bus->resource[0] = &irongate_io;
 	bus->resource[1] = &irongate_mem;