On Tue, Nov 28, 2017 at 09:39:02AM -0800, Randy Dunlap wrote:
> From: Randy Dunlap <[email protected]>
> 
> Fix coretemp.c build when CONFIG_PCI is not enabled.
> Fixes these build errors:
> 
> ../drivers/hwmon/coretemp.c: In function 'adjust_tjmax':
> ../drivers/hwmon/coretemp.c:250:9: error: implicit declaration of function 
> 'pci_get_domain_bus_and_slot' [-Werror=implicit-function-declaration]
>   struct pci_dev *host_bridge = pci_get_domain_bus_and_slot(0, 0, devfn);
> ../drivers/hwmon/coretemp.c:250:32: warning: initialization makes pointer 
> from integer without a cast [enabled by default]
>   struct pci_dev *host_bridge = pci_get_domain_bus_and_slot(0, 0, devfn);
> 

nack, sorry.

The dependency is artificial, and the code using it is only needed for old
CPUs. There should be a dummy function for pci_get_domain_bus_and_slot()
if PCI is disabled, similar to pci_get_bus_and_slot() and all the other
pci functions. If that is unacceptable for some reason, I rather revert
the patch introducing the use of pci_get_domain_bus_and_slot().
After all, it doesn't add any real value to enforce the use of
pci_get_domain_bus_and_slot() in the driver, a dummy function for
pci_get_bus_and_slot() _is_ available, and the new function is quite
obviously not a 1:1 replacement of pci_get_bus_and_slot().

Guenter

> Signed-off-by: Randy Dunlap <[email protected]>
> Cc: Rudolf Marek <[email protected]>
> Cc: Jean Delvare <[email protected]>
> Cc: Guenter Roeck <[email protected]>
> Cc: [email protected]
> Cc: Fenghua Yu <[email protected]>
> Cc: Thomas Gleixner <[email protected]>
> ---
>  drivers/hwmon/Kconfig |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> --- lnx-415-rc1.orig/drivers/hwmon/Kconfig
> +++ lnx-415-rc1/drivers/hwmon/Kconfig
> @@ -631,7 +631,7 @@ config SENSORS_I5500
>  
>  config SENSORS_CORETEMP
>       tristate "Intel Core/Core2/Atom temperature sensor"
> -     depends on X86
> +     depends on X86 && PCI
>       help
>         If you say yes here you get support for the temperature
>         sensor inside your CPU. Most of the family 6 CPUs
> 
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