On Wed, Apr 24, 2019 at 10:49:51AM +0530, Vidya Sagar wrote: > Export pcie_bus_config to enable host controller drivers setting it to a > specific configuration be able to build as loadable modules > > Signed-off-by: Vidya Sagar <vidyas@xxxxxxxxxx> > --- > Changes since [v4]: > * None > > Changes since [v3]: > * None > > Changes since [v2]: > * None > > Changes since [v1]: > * This is a new patch in v2 series > > drivers/pci/pci.c | 1 + > 1 file changed, 1 insertion(+) It doesn't look to me like this is something that host controller drivers are supposed to change. This is set via the pci kernel command- line parameter, meaning it's a way of tuning the system configuration. Drivers should not be allowed to override this after the fact. Why do we need to set this? Thierry > diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c > index f5ff01dc4b13..731f78508601 100644 > --- a/drivers/pci/pci.c > +++ b/drivers/pci/pci.c > @@ -94,6 +94,7 @@ unsigned long pci_hotplug_mem_size = DEFAULT_HOTPLUG_MEM_SIZE; > unsigned long pci_hotplug_bus_size = DEFAULT_HOTPLUG_BUS_SIZE; > > enum pcie_bus_config_types pcie_bus_config = PCIE_BUS_DEFAULT; > +EXPORT_SYMBOL_GPL(pcie_bus_config); > > /* > * The default CLS is used if arch didn't set CLS explicitly and not > -- > 2.17.1 >
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