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authorSean Christopherson <sean.j.christopherson@intel.com>2019-11-26 08:54:16 -0800
committerIngo Molnar <mingo@kernel.org>2019-12-10 10:15:48 +0100
commit8c53b318b222eff55d2900b554094a099b1a30f6 (patch)
treeeeee7f57178086e00a21befe9bd4c577230218dc /arch/ia64
parentcb28909525acdd1a89c5b2de761eaf2f788c0057 (diff)
downloadlwn-8c53b318b222eff55d2900b554094a099b1a30f6.tar.gz
lwn-8c53b318b222eff55d2900b554094a099b1a30f6.zip
ACPI/sleep: Convert acpi_wakeup_address into a function
Convert acpi_wakeup_address from a raw variable into a function so that x86 can wrap its dereference of the real mode boot header in a function instead of broadcasting it to the world via a #define. This sets the stage for a future patch to move x86's definition of the new function, acpi_get_wakeup_address(), out of asm/acpi.h and thus break acpi.h's dependency on asm/realmode.h. No functional change intended. Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com> Link: https://lkml.kernel.org/r/20191126165417.22423-12-sean.j.christopherson@intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/ia64')
-rw-r--r--arch/ia64/include/asm/acpi.h5
-rw-r--r--arch/ia64/kernel/acpi.c2
2 files changed, 4 insertions, 3 deletions
diff --git a/arch/ia64/include/asm/acpi.h b/arch/ia64/include/asm/acpi.h
index f886d4dc9d55..b66ba907019c 100644
--- a/arch/ia64/include/asm/acpi.h
+++ b/arch/ia64/include/asm/acpi.h
@@ -38,7 +38,10 @@ int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
/* Low-level suspend routine. */
extern int acpi_suspend_lowlevel(void);
-extern unsigned long acpi_wakeup_address;
+static inline unsigned long acpi_get_wakeup_address(void)
+{
+ return 0;
+}
/*
* Record the cpei override flag and current logical cpu. This is
diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c
index 70d1587ddcd4..a5636524af76 100644
--- a/arch/ia64/kernel/acpi.c
+++ b/arch/ia64/kernel/acpi.c
@@ -42,8 +42,6 @@ int acpi_lapic;
unsigned int acpi_cpei_override;
unsigned int acpi_cpei_phys_cpuid;
-unsigned long acpi_wakeup_address = 0;
-
#define ACPI_MAX_PLATFORM_INTERRUPTS 256
/* Array to record platform interrupt vectors for generic interrupt routing. */