Hi all, Here's a series that contains two fixes to PCI bridge window sizing algorithm. Together, they should enable remove & rescan cycle to work for a PCI bus that has PCI devices with optional resources and/or disparity in BAR sizes. For the second fix, I chose to expose find_empty_resource_slot() from kernel/resource.c because it should increase accuracy of the cannot-fit decision (currently that function is called find_resource()). In order to do that sensibly, a few improvements seemed in order to make its interface and name of the function sane before exposing it. Thus, the few extra patches on resource side. Unfortunately I don't have a reason to suspect these would help with the issues related to the currently ongoing resource regression thread [1]. [1] https://lore.kernel.org/linux-pci/ZXpaNCLiDM+Kv38H@xxxxxxxxxxxxxxxxxxx/ v2: - Add "typedef" to kerneldoc to get correct formatting - Use RESOURCE_SIZE_MAX instead of literal - Remove unnecessary checks for io{port/mem}_resource - Apply a few style tweaks from Andy Ilpo Järvinen (7): PCI: Fix resource double counting on remove & rescan resource: Rename find_resource() to find_empty_resource_slot() resource: Document find_empty_resource_slot() and resource_constraint resource: Use typedef for alignf callback resource: Handle simple alignment inside __find_empty_resource_slot() resource: Export find_empty_resource_slot() PCI: Relax bridge window tail sizing rules drivers/pci/bus.c | 10 ++---- drivers/pci/setup-bus.c | 80 +++++++++++++++++++++++++++++++++++++---- include/linux/ioport.h | 44 ++++++++++++++++++++--- include/linux/pci.h | 5 +-- kernel/resource.c | 68 ++++++++++++++++------------------- 5 files changed, 148 insertions(+), 59 deletions(-) -- 2.30.2
