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SUSE:SLE-12:Update
xen.10697
5b505fe5-VMX-fix-find-msr-build.patch
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File 5b505fe5-VMX-fix-find-msr-build.patch of Package xen.10697
# Commit 97cb0516a322ecdf0032fa9d8aa1525c03d7772f # Date 2018-07-19 11:54:45 +0200 # Author Jan Beulich <jbeulich@suse.com> # Committer Jan Beulich <jbeulich@suse.com> VMX: fix vmx_find_msr() build Older gcc at -O2 (and perhaps higher) does not recognize that apparently uninitialized variables aren't really uninitialized. Pull out the assignments used by two of the three case blocks and make them initializers of the variables, as I think I had suggested during review. Signed-off-by: Jan Beulich <jbeulich@suse.com> Reviewed-by: Wei Liu <wei.liu2@citrix.com> Acked-by: Kevin Tian <kevin.tian@intel.com> --- a/xen/arch/x86/hvm/vmx/vmcs.c +++ b/xen/arch/x86/hvm/vmx/vmcs.c @@ -1196,7 +1196,8 @@ struct vmx_msr_entry *vmx_find_msr(const { const struct arch_vmx_struct *vmx = &v->arch.hvm_vmx; struct vmx_msr_entry *start = NULL, *ent, *end; - unsigned int substart, subend, total; + unsigned int substart = 0, subend = vmx->msr_save_count; + unsigned int total = vmx->msr_load_count; ASSERT(v == current || !vcpu_runnable(v)); @@ -1204,23 +1205,18 @@ struct vmx_msr_entry *vmx_find_msr(const { case VMX_MSR_HOST: start = vmx->host_msr_area; - substart = 0; subend = vmx->host_msr_count; total = subend; break; case VMX_MSR_GUEST: start = vmx->msr_area; - substart = 0; - subend = vmx->msr_save_count; - total = vmx->msr_load_count; break; case VMX_MSR_GUEST_LOADONLY: start = vmx->msr_area; - substart = vmx->msr_save_count; - subend = vmx->msr_load_count; - total = subend; + substart = subend; + subend = total; break; default:
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