From 8dd779b19ce5972072ad2372a86c8acbae4da768 Mon Sep 17 00:00:00 2001 From: Robert Richter Date: Wed, 2 Jul 2008 22:50:29 +0200 Subject: [PATCH] x86/pci: removing subsys_initcall ordering dependencies So far subsys_initcalls has been executed in this order depending on the object order in the Makefile: arch/x86/pci/visws.c:subsys_initcall(pcibios_init); arch/x86/pci/numa.c:subsys_initcall(pci_numa_init); arch/x86/pci/acpi.c:subsys_initcall(pci_acpi_init); arch/x86/pci/legacy.c:subsys_initcall(pci_legacy_init); arch/x86/pci/irq.c:subsys_initcall(pcibios_irq_init); arch/x86/pci/common.c:subsys_initcall(pcibios_init); This patch removes the ordering dependency. There is now only one subsys_initcall function that contains subsystem initialization code with a defined order. Signed-off-by: Robert Richter Acked-by: Jesse Barnes Signed-off-by: Ingo Molnar --- arch/x86/pci/Makefile | 4 ---- arch/x86/pci/acpi.c | 3 +-- arch/x86/pci/common.c | 4 +--- arch/x86/pci/init.c | 4 ++-- arch/x86/pci/irq.c | 5 +---- arch/x86/pci/legacy.c | 11 ++++++++++- arch/x86/pci/numa.c | 8 +++++++- arch/x86/pci/pci.h | 11 ++++++++--- arch/x86/pci/visws.c | 7 ++++++- 9 files changed, 36 insertions(+), 21 deletions(-) diff --git a/arch/x86/pci/Makefile b/arch/x86/pci/Makefile index 1ba1236..99d9f09 100644 --- a/arch/x86/pci/Makefile +++ b/arch/x86/pci/Makefile @@ -6,10 +6,6 @@ obj-$(CONFIG_PCI_DIRECT) += direct.o obj-$(CONFIG_PCI_OLPC) += olpc.o pci-y := fixup.o - -# Do not change the ordering here. There is a nasty init function -# ordering dependency which breaks when you move acpi.o below -# legacy/irq.o pci-$(CONFIG_ACPI) += acpi.o pci-y += legacy.o irq.o diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c index 4fa52d3..19af069 100644 --- a/arch/x86/pci/acpi.c +++ b/arch/x86/pci/acpi.c @@ -223,7 +223,7 @@ struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_device *device, int do return bus; } -static int __init pci_acpi_init(void) +int __init pci_acpi_init(void) { struct pci_dev *dev = NULL; @@ -257,4 +257,3 @@ static int __init pci_acpi_init(void) return 0; } -subsys_initcall(pci_acpi_init); diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c index 6e64aaf..20b9f59 100644 --- a/arch/x86/pci/common.c +++ b/arch/x86/pci/common.c @@ -384,7 +384,7 @@ struct pci_bus * __devinit pcibios_scan_root(int busnum) extern u8 pci_cache_line_size; -static int __init pcibios_init(void) +int __init pcibios_init(void) { struct cpuinfo_x86 *c = &boot_cpu_data; @@ -411,8 +411,6 @@ static int __init pcibios_init(void) return 0; } -subsys_initcall(pcibios_init); - char * __devinit pcibios_setup(char *str) { if (!strcmp(str, "off")) { diff --git a/arch/x86/pci/init.c b/arch/x86/pci/init.c index b821f44..d6c950f 100644 --- a/arch/x86/pci/init.c +++ b/arch/x86/pci/init.c @@ -4,7 +4,7 @@ /* arch_initcall has too random ordering, so call the initializers in the right sequence from here. */ -static __init int pci_access_init(void) +static __init int pci_arch_init(void) { #ifdef CONFIG_PCI_DIRECT int type = 0; @@ -40,4 +40,4 @@ static __init int pci_access_init(void) return 0; } -arch_initcall(pci_access_init); +arch_initcall(pci_arch_init); diff --git a/arch/x86/pci/irq.c b/arch/x86/pci/irq.c index f0859de..dc568c6 100644 --- a/arch/x86/pci/irq.c +++ b/arch/x86/pci/irq.c @@ -1107,7 +1107,7 @@ static struct dmi_system_id __initdata pciirq_dmi_table[] = { { } }; -static int __init pcibios_irq_init(void) +int __init pcibios_irq_init(void) { DBG(KERN_DEBUG "PCI: IRQ init\n"); @@ -1142,9 +1142,6 @@ static int __init pcibios_irq_init(void) return 0; } -subsys_initcall(pcibios_irq_init); - - static void pirq_penalize_isa_irq(int irq, int active) { /* diff --git a/arch/x86/pci/legacy.c b/arch/x86/pci/legacy.c index a67921c..3c1d795 100644 --- a/arch/x86/pci/legacy.c +++ b/arch/x86/pci/legacy.c @@ -55,4 +55,13 @@ static int __init pci_legacy_init(void) return 0; } -subsys_initcall(pci_legacy_init); +int __init pci_subsys_init(void) +{ +#ifdef CONFIG_ACPI + pci_acpi_init(); +#endif + pci_legacy_init(); + pcibios_irq_init(); + pcibios_init(); +} +subsys_initcall(pci_subsys_init); diff --git a/arch/x86/pci/numa.c b/arch/x86/pci/numa.c index 99f1ecd..e1620dc 100644 --- a/arch/x86/pci/numa.c +++ b/arch/x86/pci/numa.c @@ -177,4 +177,10 @@ static int __init pci_numa_init(void) return 0; } -subsys_initcall(pci_numa_init); +static __init int pci_subsys_init(void) +{ + pci_numa_init(); + pcibios_irq_init(); + pcibios_init(); +} +subsys_initcall(pci_subsys_init); diff --git a/arch/x86/pci/pci.h b/arch/x86/pci/pci.h index ba263e6..5824174 100644 --- a/arch/x86/pci/pci.h +++ b/arch/x86/pci/pci.h @@ -39,9 +39,6 @@ enum pci_bf_sort_state { pci_dmi_bf, }; -extern void __init dmi_check_pciprobe(void); -extern void __init dmi_check_skip_isa_align(void); - /* pci-i386.c */ extern unsigned int pcibios_max_latency; @@ -99,10 +96,18 @@ extern struct pci_raw_ops *raw_pci_ext_ops; extern struct pci_raw_ops pci_direct_conf1; +/* arch_initcall level */ extern int pci_direct_probe(void); extern void pci_direct_init(int type); extern void pci_pcbios_init(void); extern int pci_olpc_init(void); +extern void __init dmi_check_pciprobe(void); +extern void __init dmi_check_skip_isa_align(void); + +/* some common used subsys_initcalls */ +extern int __init pci_acpi_init(void); +extern int __init pcibios_irq_init(void); +extern int __init pcibios_init(void); /* pci-mmconfig.c */ diff --git a/arch/x86/pci/visws.c b/arch/x86/pci/visws.c index c3dc9f2..16e5206 100644 --- a/arch/x86/pci/visws.c +++ b/arch/x86/pci/visws.c @@ -105,4 +105,9 @@ static int __init pci_visws_init(void) return 0; } -subsys_initcall(pci_visws_init); +static __init int pci_subsys_init(void) +{ + pci_visws_init(); + pcibios_init(); +} +subsys_initcall(pci_subsys_init); -- 2.7.4