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[Xen-devel] [RFC v1 8/8] x86/init: use linker table for mid early setup



From: "Luis R. Rodriguez" <mcgrof@xxxxxxxx>

Using the linker table removes the need for the #ifdef'ery
and clutter on head32.c.

Signed-off-by: Luis R. Rodriguez <mcgrof@xxxxxxxx>
---
 arch/x86/include/asm/setup.h            | 6 ------
 arch/x86/kernel/head32.c                | 7 -------
 arch/x86/platform/intel-mid/intel-mid.c | 4 +++-
 3 files changed, 3 insertions(+), 14 deletions(-)

diff --git a/arch/x86/include/asm/setup.h b/arch/x86/include/asm/setup.h
index f1e111a9d558..1345c1de7f99 100644
--- a/arch/x86/include/asm/setup.h
+++ b/arch/x86/include/asm/setup.h
@@ -45,12 +45,6 @@ extern void reserve_standard_io_resources(void);
 extern void i386_reserve_resources(void);
 extern void setup_default_timer_irq(void);
 
-#ifdef CONFIG_X86_INTEL_MID
-extern void x86_intel_mid_early_setup(void);
-#else
-static inline void x86_intel_mid_early_setup(void) { }
-#endif
-
 #ifndef _SETUP
 
 #include <asm/espfix.h>
diff --git a/arch/x86/kernel/head32.c b/arch/x86/kernel/head32.c
index ec6912873395..b23d16a2a5d5 100644
--- a/arch/x86/kernel/head32.c
+++ b/arch/x86/kernel/head32.c
@@ -36,13 +36,6 @@ asmlinkage __visible void __init i386_start_kernel(void)
        cr4_init_shadow();
        sanitize_boot_params(&boot_params);
 
-       /* Call the subarch specific early setup function */
-       switch (boot_params.hdr.hardware_subarch) {
-       case X86_SUBARCH_INTEL_MID:
-               x86_intel_mid_early_setup();
-               break;
-       }
-
        x86_init_fn_init_tables();
        x86_init_fn_early_init();
 
diff --git a/arch/x86/platform/intel-mid/intel-mid.c 
b/arch/x86/platform/intel-mid/intel-mid.c
index 1bbc21e2e4ae..27bc33193a06 100644
--- a/arch/x86/platform/intel-mid/intel-mid.c
+++ b/arch/x86/platform/intel-mid/intel-mid.c
@@ -167,7 +167,7 @@ static unsigned char intel_mid_get_nmi_reason(void)
  * Moorestown specific x86_init function overrides and early setup
  * calls.
  */
-void __init x86_intel_mid_early_setup(void)
+static void __init x86_intel_mid_early_setup(void)
 {
        x86_init.resources.probe_roms = x86_init_noop;
        x86_init.resources.reserve_resources = x86_init_noop;
@@ -199,6 +199,8 @@ void __init x86_intel_mid_early_setup(void)
        x86_init.mpparse.get_smp_config = x86_init_uint_noop;
        set_bit(MP_BUS_ISA, mp_bus_not_pci);
 }
+x86_init_early(BIT(X86_SUBARCH_INTEL_MID), NULL, NULL,
+              x86_intel_mid_early_setup);
 
 /*
  * if user does not want to use per CPU apb timer, just give it a lower rating
-- 
2.6.2


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