[07/14] KVM: monolithic: x86: remove __init section prefix from kvm_x86_cpu_has_kvm_support

Commit Message

Andrea Arcangeli Sept. 28, 2019, 5:23 p.m. UTC

Adjusts the section prefixes of some KVM x86 code function because
with the monolithic KVM model the section checker can now do a more
accurate static analysis at build time. This also allows to build
without CONFIG_SECTION_MISMATCH_WARN_ONLY=n.

The __init needs to be removed on vmx despite it's only svm calling it
from kvm_x86_hardware_enable which is eventually called by
hardware_enable_nolock() or there's a (potentially false positive)
warning (false positive because this function isn't called in the vmx
case). If this isn't needed the right cleanup isn't to put it in the
__init section, but to drop it. As long as it's defined in vmx as a
kvm_x86 operation, it's expectable that might eventually be called at
runtime while hot plugging new CPUs.

Signed-off-by: Andrea Arcangeli <[e-mail]>
---
 arch/x86/include/asm/kvm_host.h | 2 +-
 arch/x86/kvm/vmx/vmx.c          | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

Patch

diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 0ae65148e5ed..75affbf7861b 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -1002,7 +1002,7 @@  struct kvm_lapic_irq {
 	bool msi_redir_hint;
 };
 
-extern __init int kvm_x86_cpu_has_kvm_support(void);
+extern int kvm_x86_cpu_has_kvm_support(void);
 extern __init int kvm_x86_disabled_by_bios(void);
 extern int kvm_x86_hardware_enable(void);
 extern void kvm_x86_hardware_disable(void);
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index 2ae162eb082e..faccffc4709e 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -2094,7 +2094,7 @@  void kvm_x86_cache_reg(struct kvm_vcpu *vcpu, enum kvm_reg reg)
 	}
 }
 
-__init int kvm_x86_cpu_has_kvm_support(void)
+int kvm_x86_cpu_has_kvm_support(void)
 {
 	return cpu_has_vmx();
 }