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authorThomas Gleixner <tglx@linutronix.de>2020-08-26 13:16:49 +0200
committerThomas Gleixner <tglx@linutronix.de>2020-09-16 16:52:35 +0200
commit445d3595ab290ba16ca5f202c7a67d71460cb39f (patch)
treef4751284caa72b443877a18a8e8f72386c1e4b93 /arch
parentx86/irq: Move apic_post_init() invocation to one place (diff)
downloadlinux-445d3595ab290ba16ca5f202c7a67d71460cb39f.tar.xz
linux-445d3595ab290ba16ca5f202c7a67d71460cb39f.zip
x86/pci: Reducde #ifdeffery in PCI init code
Adding a function call before the first #ifdef in arch_pci_init() triggers a 'mixed declarations and code' warning if PCI_DIRECT is enabled. Use stub functions and move the #ifdeffery to the header file where it is not in the way. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20200826112332.767707340@linutronix.de
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/include/asm/pci_x86.h11
-rw-r--r--arch/x86/pci/init.c10
2 files changed, 14 insertions, 7 deletions
diff --git a/arch/x86/include/asm/pci_x86.h b/arch/x86/include/asm/pci_x86.h
index 73bb404f4d2a..490411dba438 100644
--- a/arch/x86/include/asm/pci_x86.h
+++ b/arch/x86/include/asm/pci_x86.h
@@ -114,9 +114,20 @@ extern const struct pci_raw_ops pci_direct_conf1;
extern bool port_cf9_safe;
/* arch_initcall level */
+#ifdef CONFIG_PCI_DIRECT
extern int pci_direct_probe(void);
extern void pci_direct_init(int type);
+#else
+static inline int pci_direct_probe(void) { return -1; }
+static inline void pci_direct_init(int type) { }
+#endif
+
+#ifdef CONFIG_PCI_BIOS
extern void pci_pcbios_init(void);
+#else
+static inline void pci_pcbios_init(void) { }
+#endif
+
extern void __init dmi_check_pciprobe(void);
extern void __init dmi_check_skip_isa_align(void);
diff --git a/arch/x86/pci/init.c b/arch/x86/pci/init.c
index 5fc617edf108..bf6690935943 100644
--- a/arch/x86/pci/init.c
+++ b/arch/x86/pci/init.c
@@ -8,11 +8,9 @@
in the right sequence from here. */
static __init int pci_arch_init(void)
{
-#ifdef CONFIG_PCI_DIRECT
- int type = 0;
+ int type;
type = pci_direct_probe();
-#endif
if (!(pci_probe & PCI_PROBE_NOEARLY))
pci_mmcfg_early_init();
@@ -20,18 +18,16 @@ static __init int pci_arch_init(void)
if (x86_init.pci.arch_init && !x86_init.pci.arch_init())
return 0;
-#ifdef CONFIG_PCI_BIOS
pci_pcbios_init();
-#endif
+
/*
* don't check for raw_pci_ops here because we want pcbios as last
* fallback, yet it's needed to run first to set pcibios_last_bus
* in case legacy PCI probing is used. otherwise detecting peer busses
* fails.
*/
-#ifdef CONFIG_PCI_DIRECT
pci_direct_init(type);
-#endif
+
if (!raw_pci_ops && !raw_pci_ext_ops)
printk(KERN_ERR
"PCI: Fatal: No config space access function found\n");