From: Takuya Yoshikawa Date: Wed, 6 Mar 2013 07:05:07 +0000 (+0900) Subject: KVM: MMU: Fix and clean up for_each_gfn_* macros X-Git-Tag: v3.10-rc1~87^2~108 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=1044b0303464788820984a5b01c0a81860dce749;p=platform%2Fkernel%2Flinux-exynos.git KVM: MMU: Fix and clean up for_each_gfn_* macros The expression (sp)->gfn should not be expanded using @gfn. Although no user of these macros passes a string other than gfn now, this should be fixed before anyone sees strange errors. Note: ignored the following checkpatch errors: ERROR: Macros with complex values should be enclosed in parenthesis ERROR: trailing statements should be on next line Reviewed-by: Gleb Natapov Signed-off-by: Takuya Yoshikawa Signed-off-by: Marcelo Tosatti --- diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index 956ca35..3e4822b 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -1644,16 +1644,14 @@ static int kvm_mmu_prepare_zap_page(struct kvm *kvm, struct kvm_mmu_page *sp, static void kvm_mmu_commit_zap_page(struct kvm *kvm, struct list_head *invalid_list); -#define for_each_gfn_sp(kvm, sp, gfn) \ - hlist_for_each_entry(sp, \ - &(kvm)->arch.mmu_page_hash[kvm_page_table_hashfn(gfn)], hash_link) \ - if ((sp)->gfn != (gfn)) {} else - -#define for_each_gfn_indirect_valid_sp(kvm, sp, gfn) \ - hlist_for_each_entry(sp, \ - &(kvm)->arch.mmu_page_hash[kvm_page_table_hashfn(gfn)], hash_link) \ - if ((sp)->gfn != (gfn) || (sp)->role.direct || \ - (sp)->role.invalid) {} else +#define for_each_gfn_sp(_kvm, _sp, _gfn) \ + hlist_for_each_entry(_sp, \ + &(_kvm)->arch.mmu_page_hash[kvm_page_table_hashfn(_gfn)], hash_link) \ + if ((_sp)->gfn != (_gfn)) {} else + +#define for_each_gfn_indirect_valid_sp(_kvm, _sp, _gfn) \ + for_each_gfn_sp(_kvm, _sp, _gfn) \ + if ((_sp)->role.direct || (_sp)->role.invalid) {} else /* @sp->gfn should be write-protected at the call site */ static int __kvm_sync_page(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp,