From: David Daney Date: Thu, 29 Oct 2015 22:35:39 +0000 (-0500) Subject: PCI: Handle IORESOURCE_PCI_FIXED when sizing resources X-Git-Tag: KARO-TX6UL-2015-11-03~103^2~3^6~7 X-Git-Url: https://git.kernelconcepts.de/?p=karo-tx-linux.git;a=commitdiff_plain;h=a2220d804bf09aae4da45dfd6cc6692e0e422926 PCI: Handle IORESOURCE_PCI_FIXED when sizing resources The new Enhanced Allocation (EA) capability support (patches to follow) creates resources with the IORESOURCE_PCI_FIXED set. Since these resources cannot be relocated or resized, their alignment is not really defined, and it is therefore not specified. This causes a problem in pbus_size_mem() where resources with unspecified alignment are disabled. So, in pbus_size_mem() skip IORESOURCE_PCI_FIXED resources, instead of disabling them. [bhelgaas: folded in "flags & IORESOURCE_PCI_FIXED" fix from David] Signed-off-by: David Daney Signed-off-by: Bjorn Helgaas Acked-by: Sean O. Stalley --- diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c index 508cc56130e3..7bea2317df14 100644 --- a/drivers/pci/setup-bus.c +++ b/drivers/pci/setup-bus.c @@ -1037,9 +1037,10 @@ static int pbus_size_mem(struct pci_bus *bus, unsigned long mask, struct resource *r = &dev->resource[i]; resource_size_t r_size; - if (r->parent || ((r->flags & mask) != type && - (r->flags & mask) != type2 && - (r->flags & mask) != type3)) + if (r->parent || (r->flags & IORESOURCE_PCI_FIXED) || + ((r->flags & mask) != type && + (r->flags & mask) != type2 && + (r->flags & mask) != type3)) continue; r_size = resource_size(r); #ifdef CONFIG_PCI_IOV