Messages in this thread Patch in this message | | | From | Randy Dunlap <> | Subject | [PATCH v2] KVM: SVM: hyper-v: placate modpost section mismatch error | Date | Wed, 22 Feb 2023 08:25:11 -0800 |
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modpost reports section mismatch errors/warnings: WARNING: modpost: vmlinux.o: section mismatch in reference: svm_hv_hardware_setup (section: .text) -> (unknown) (section: .init.data) WARNING: modpost: vmlinux.o: section mismatch in reference: svm_hv_hardware_setup (section: .text) -> (unknown) (section: .init.data) WARNING: modpost: vmlinux.o: section mismatch in reference: svm_hv_hardware_setup (section: .text) -> (unknown) (section: .init.data)
Marking svm_hv_hardware_setup() as __init fixes the warnings.
I don't know why this should be needed -- it seems like a compiler problem to me since the calling function is marked as __init.
This "(unknown) (section: .init.data)" all refer to svm_x86_ops.
Fixes: 1e0c7d40758b ("KVM: SVM: hyper-v: Remote TLB flush for SVM") Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Vineeth Pillai <viremana@linux.microsoft.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Vitaly Kuznetsov <vkuznets@redhat.com> Cc: Sean Christopherson <seanjc@google.com> Cc: kvm@vger.kernel.org --- v2: also make the empty stub function be __init (Vitaly)
arch/x86/kvm/svm/svm_onhyperv.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff -- a/arch/x86/kvm/svm/svm_onhyperv.h b/arch/x86/kvm/svm/svm_onhyperv.h --- a/arch/x86/kvm/svm/svm_onhyperv.h +++ b/arch/x86/kvm/svm/svm_onhyperv.h @@ -30,7 +30,7 @@ static inline void svm_hv_init_vmcb(stru hve->hv_enlightenments_control.msr_bitmap = 1; } -static inline void svm_hv_hardware_setup(void) +static inline __init void svm_hv_hardware_setup(void) { if (npt_enabled && ms_hyperv.nested_features & HV_X64_NESTED_ENLIGHTENED_TLB) { @@ -84,7 +84,7 @@ static inline void svm_hv_init_vmcb(stru { } -static inline void svm_hv_hardware_setup(void) +static inline __init void svm_hv_hardware_setup(void) { }
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