From: Ishizaki Kou Date: Wed, 9 May 2007 07:36:40 +0000 (+1000) Subject: [POWERPC] celleb: Fix PCI config space accesses to subordinate buses X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=0f6e74a3e0c5e805d5f67f7631259c886158a47b;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git [POWERPC] celleb: Fix PCI config space accesses to subordinate buses Checking whether bus->self is NULL is not enough to know "bus" is the primary bus. Signed-off-by: Kou Ishizaki Signed-off-by: Paul Mackerras --- diff --git a/arch/powerpc/platforms/celleb/scc_epci.c b/arch/powerpc/platforms/celleb/scc_epci.c index fb23d53eb09c..c4b011094bd6 100644 --- a/arch/powerpc/platforms/celleb/scc_epci.c +++ b/arch/powerpc/platforms/celleb/scc_epci.c @@ -133,13 +133,13 @@ static int celleb_epci_check_abort(struct pci_controller *hose, } static volatile void __iomem *celleb_epci_make_config_addr( + struct pci_bus *bus, struct pci_controller *hose, unsigned int devfn, int where) { volatile void __iomem *addr; - struct pci_bus *bus = hose->bus; - if (bus->self) + if (bus != hose->bus) addr = celleb_epci_get_epci_cfg(hose) + (((bus->number & 0xff) << 16) | ((devfn & 0xff) << 8) @@ -193,7 +193,7 @@ static int celleb_epci_read_config(struct pci_bus *bus, } else { clear_and_disable_master_abort_interrupt(hose); - addr = celleb_epci_make_config_addr(hose, devfn, where); + addr = celleb_epci_make_config_addr(bus, hose, devfn, where); switch (size) { case 1: @@ -257,7 +257,7 @@ static int celleb_epci_write_config(struct pci_bus *bus, } else { clear_and_disable_master_abort_interrupt(hose); - addr = celleb_epci_make_config_addr(hose, devfn, where); + addr = celleb_epci_make_config_addr(bus, hose, devfn, where); switch (size) { case 1: