[PATCH v4 1/5] x86/xen: Mark xen_hvm_need_lapic() and xen_x2apic_para_available() as __init

From: Zhenzhong Duan
Date: Tue Jul 02 2019 - 01:17:26 EST


.. as they are only called at early bootup stage. In fact, other
functions in x86_hyper_xen_hvm.init.* are all marked as __init.

Unexport xen_hvm_need_lapic as it's never used outside.

Signed-off-by: Zhenzhong Duan <zhenzhong.duan@xxxxxxxxxx>
Reviewed-by: Juergen Gross <jgross@xxxxxxxx>
Cc: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>
Cc: Stefano Stabellini <sstabellini@xxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Borislav Petkov <bp@xxxxxxxxx>
---
arch/x86/include/asm/xen/hypervisor.h | 6 +++---
arch/x86/xen/enlighten_hvm.c | 3 +--
2 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/arch/x86/include/asm/xen/hypervisor.h b/arch/x86/include/asm/xen/hypervisor.h
index 39171b3..42e1245 100644
--- a/arch/x86/include/asm/xen/hypervisor.h
+++ b/arch/x86/include/asm/xen/hypervisor.h
@@ -44,14 +44,14 @@ static inline uint32_t xen_cpuid_base(void)
}

#ifdef CONFIG_XEN
-extern bool xen_hvm_need_lapic(void);
+extern bool __init xen_hvm_need_lapic(void);

-static inline bool xen_x2apic_para_available(void)
+static inline bool __init xen_x2apic_para_available(void)
{
return xen_hvm_need_lapic();
}
#else
-static inline bool xen_x2apic_para_available(void)
+static inline bool __init xen_x2apic_para_available(void)
{
return (xen_cpuid_base() != 0);
}
diff --git a/arch/x86/xen/enlighten_hvm.c b/arch/x86/xen/enlighten_hvm.c
index 0e75642..ac4943c 100644
--- a/arch/x86/xen/enlighten_hvm.c
+++ b/arch/x86/xen/enlighten_hvm.c
@@ -218,7 +218,7 @@ static __init int xen_parse_nopv(char *arg)
}
early_param("xen_nopv", xen_parse_nopv);

-bool xen_hvm_need_lapic(void)
+bool __init xen_hvm_need_lapic(void)
{
if (xen_nopv)
return false;
@@ -230,7 +230,6 @@ bool xen_hvm_need_lapic(void)
return false;
return true;
}
-EXPORT_SYMBOL_GPL(xen_hvm_need_lapic);

static uint32_t __init xen_platform_hvm(void)
{
--
1.8.3.1