This series is a clean up in the pci subsystem when accessing the pci configuration space. The first one is to re-use the PCI_FIND_CAP_TTL to limit the times iterating in pci configuration space. The next three are to use the exact type to access the pci cap and pcie ext cap. Tested on x86 and powerpc on top of v4.1. The original thread could be referenced in below link: http://comments.gmane.org/gmane.linux.kernel.pci/35931 --- v1->v2: * define PCI_FIND_CAP_TTL in drivers/pci/pci.h instead of include/linux/pci.h * split the change for return position check from second one, and make the forth patch Wei Yang (4): PCI: move PCI_FIND_CAP_TTL to pci.h and use it in quirks PCI: use u8 to represent pci configuration space pos and cap PCI: use u16 to represent pci express extended capabilities pos and cap PCI: consolidate return value check for pci_find_(ext_)capability drivers/pci/iov.c | 2 +- drivers/pci/pci.c | 68 +++++++++++++++++++++++++------------------------- drivers/pci/pci.h | 2 ++ drivers/pci/probe.c | 10 ++++---- drivers/pci/quirks.c | 19 +++++++------- include/linux/pci.h | 26 +++++++++---------- 6 files changed, 65 insertions(+), 62 deletions(-) -- 1.7.9.5 -- 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