On Mon, Aug 25, 2014 at 7:56 PM, Olof Johansson <olof@xxxxxxxxx> wrote: > On Wed, Aug 13, 2014 at 10:21 AM, Bjorn Helgaas <bhelgaas@xxxxxxxxxx> wrote: >> On Thu, Jul 24, 2014 at 11:17:45AM +0200, Arnd Bergmann wrote: >>> From 0ee79c7451851a34e5a7c33eb6020befcdcb2b24 Mon Sep 17 00:00:00 2001 >>> From: Arnd Bergmann <arnd@xxxxxxxx> >>> Date: Thu, 24 Jul 2014 11:12:48 +0200 >>> Subject: [PATCH] PCI: pcie-designware: allow drivers as loadable modules >>> >>> The new pcie-spear13xx driver uses the pcie-designware library >>> and in the current form it can be built as a loadable module. >>> However, the functions it uses from the base driver are not exported, >>> so this results in a build failure and a module that can never >>> be loaded: >>> >>> ERROR: "dw_pcie_host_init" [drivers/pci/host/pcie-spear13xx.ko] undefined! >>> ERROR: "dw_handle_msi_irq" [drivers/pci/host/pcie-spear13xx.ko] undefined! >>> ERROR: "dw_pcie_msi_init" [drivers/pci/host/pcie-spear13xx.ko] undefined! >>> ERROR: "dw_pcie_cfg_write" [drivers/pci/host/pcie-spear13xx.ko] undefined! >>> ERROR: "dw_pcie_cfg_read" [drivers/pci/host/pcie-spear13xx.ko] undefined! >>> ERROR: "dw_pcie_setup_rc" [drivers/pci/host/pcie-spear13xx.ko] undefined! >>> ERROR: "dw_pcie_link_up" [drivers/pci/host/pcie-spear13xx.ko] undefined! >>> >>> If we want to allow loadable pcie-designware drivers, we have to >>> export all those symbols and ensure none of them are marked as __init. >>> This also requires making pci_assign_unassigned_resources available >>> after boot. >>> >>> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> >>> --- >>> If we don't want this patch for some reason, we should instead mark >>> this driver 'bool' in Kconfig, so it becomes impossible to encounter >>> this build error. >> >> I'm not opposed to doing this, but I applied Sachin's patch that changes >> the Kconfig option to bool, so I'll drop this one for now. > > > Hi Bjorn, > > Are you going to send this as a 3.17 fix, or is it queued only for > 3.18? The former would be preferrable here. Nevermind, next time I'll go look at your tree directly instead. :-) -Olof -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
