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([2001:b07:6468:f312:5e2c:eb9a:a8b6:fd3e]) by smtp.gmail.com with ESMTPSA id i22sm1810746ejv.8.2020.10.23.23.29.06 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 23 Oct 2020 23:29:07 -0700 (PDT) Subject: Re: [PATCH] KVM: x86/mmu: Avoid modulo operator on 64-bit value to fix i386 build To: Sean Christopherson , Linus Torvalds Cc: Vitaly Kuznetsov , Wanpeng Li , Jim Mattson , Joerg Roedel , kvm@vger.kernel.org, linux-kernel@vger.kernel.org, =?UTF-8?Q?Daniel_D=c3=adaz?= References: <20201024031150.9318-1-sean.j.christopherson@intel.com> From: Paolo Bonzini Message-ID: <94427d37-03af-6d78-2039-cd326710904b@redhat.com> Date: Sat, 24 Oct 2020 08:29:06 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.3.1 MIME-Version: 1.0 In-Reply-To: <20201024031150.9318-1-sean.j.christopherson@intel.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 24/10/20 05:11, Sean Christopherson wrote: > Replace a modulo operator with the more common pattern for computing the > gfn "offset" of a huge page to fix an i386 build error. > > arch/x86/kvm/mmu/tdp_mmu.c:212: undefined reference to `__umoddi3' > > Fixes: 2f2fad0897cb ("kvm: x86/mmu: Add functions to handle changed TDP SPTEs") > Reported-by: Daniel Díaz > Signed-off-by: Sean Christopherson > --- > > Linus, do you want to take this directly so that it's in rc1? I don't > know whether Paolo will be checking mail before then Yes, I am. I also have another bugfix, I was going to wait a couple days for any -rc1 issues to pop up but they came up faster than that. Paolo