From nobody Sun Apr 5 19:51:18 2026 Received: from smtpbgeu2.qq.com (smtpbgeu2.qq.com [18.194.254.142]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B52D225F988; Tue, 24 Feb 2026 03:06:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=18.194.254.142 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771902379; cv=none; b=ld3n2Y4rFhur1qJ2tNrXE9wVtosCOIlp/HmJYRIiKsJ/ZZjd3r01VhIvsxBBu8BtdvkwTSdtBgUNG7EDso98m1OORnJ15IXEPf7RUz9V55j5zHjp4Owpf06nsgFlQ6yZjOxERv8fP7xWXZWwVauJuXeRY8+NMhVL1ac5HT+tSbk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771902379; c=relaxed/simple; bh=qssF05MfIm4PKdUmGfxwNYhwrYKsgr/FAsbcuWSiwV4=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=PcoRS1zCOn8XBZ6+w63BybbuSbMMY8jzM0iS5FSM+fQbhOFUxMQNv5FQ9V3Uv0MaBJpucI2GajSLUuojJqbRgnHVz6TP05MB2VV8SOiLSc07TDGMHQcqLpXHARlfx2AUaAf0NBcCnHhajONg8nIrd/Kn8qVRdMHyFpFdW5UDhlw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=smail.nju.edu.cn; spf=pass smtp.mailfrom=smail.nju.edu.cn; dkim=pass (1024-bit key) header.d=smail.nju.edu.cn header.i=@smail.nju.edu.cn header.b=JX8KmRgF; arc=none smtp.client-ip=18.194.254.142 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=smail.nju.edu.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=smail.nju.edu.cn Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=smail.nju.edu.cn header.i=@smail.nju.edu.cn header.b="JX8KmRgF" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=smail.nju.edu.cn; s=iohv2404; t=1771902301; bh=w7ScbXAlDg77dLFPD9/y+vNR4xu0fzduE0FT6qpaER0=; h=From:To:Subject:Date:Message-Id:MIME-Version; b=JX8KmRgFZ8/RRz1yvtZdLPu6ewfXaOg7kEM5GPdT9HKwpZPfAmEXW+bfJSkl30Zr7 hbtEEUepOEmEZVQajIApOD3ZR0YVWaAfOnJ9z6mcHfJ1WMrklmRX8kB3OLzu2w3GyT Z1muN7a4CT+0z1iVRNuhVh4SGnYr2VwfTYe+H370= X-QQ-mid: zesmtpgz9t1771902299t335be9eb X-QQ-Originating-IP: k9kXXmnjdlkQUeBx6U3J5mySxJB/gzlKmcje5uWhwNM= Received: from localhost.localdomain ( [116.172.93.199]) by bizesmtp.qq.com (ESMTP) with id ; Tue, 24 Feb 2026 11:04:56 +0800 (CST) X-QQ-SSF: 0000000000000000000000000000000 X-QQ-GoodBg: 0 X-BIZMAIL-ID: 3330235604714080646 EX-QQ-RecipientCnt: 14 From: kexinsun To: zhaotianrui@loongson.cn Cc: maobibo@loongson.cn, chenhuacai@kernel.org, kernel@xen0n.name, tsbogend@alpha.franken.de, kvm@vger.kernel.org, loongarch@lists.linux.dev, linux-kernel@vger.kernel.org, linux-mips@vger.kernel.org, julia.lawall@inria.fr, xutong.ma@inria.fr, yunbolyu@smu.edu.sg, ratnadiraw@smu.edu.sg, kexinsun@smail.nju.edu.cn Subject: [PATCH] KVM: MIPS/LoongArch: Fix typo in pfn_to_pfn_prot comments Date: Tue, 24 Feb 2026 11:04:53 +0800 Message-Id: <20260224030453.2311-1-kexinsun@smail.nju.edu.cn> X-Mailer: git-send-email 2.25.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-QQ-SENDSIZE: 520 Feedback-ID: zesmtpgz:smail.nju.edu.cn:qybglogicsvrgz:qybglogicsvrgz5b-0 X-QQ-XMAILINFO: Ng+Kv6QQ5H8idZXDU7uKnFG5tE30S++zH90fXU4RNb9dZPv/jslz+1mL nHyYSHDiSFcba3UJh+snSQJtdPJDMHcVsGldioS70KW7Rsrn/NR8DPlXrDpyOWRXdXcIVko 3hPkW3RiL9q9M9bQHSg2YGkB5fwbUr4LJsSZk9B/yYS+p+fSbKRYUuoE4l0mL1TND1Jdx1O nu72svLCNstGTHKyM/G28fTgLN191+cEQZMHk+YvvVs4NsD+KtRPXtFK7tQw8dOwY0Or7Vu UPkLSplxLxhgMdhSTuJv6TwrLt9OuFDhAg6YjoljZN6cdW6jnyXHpBJAKQxUaduENhIhHHR INAu6VHZNVklKASwLwaHczwKiLj5YLz4lnoiRp1sZ++eAPXKQ9xBbTLxvs+TlZWQwKTqyO/ yHuDUUQ4KTd6vF+v7i4Vs6/E20Nn5gucxCSmVSfIU/TLFZVaoVELbKL9+qti7ZVfWSlv42Z FVypRXTD+lpzXml+4VzcXNZVHLKPjxdKHLQbzgteDZDtvRSOaJeEfU3VpUm8uLeiv20sTu1 ulabu2L8kshQeHkfXloH6UmlNfQ+1D55RKMZNKwi7XQM7S8Xs1IQkzgRTaugBaLdkOnnpji DlcsjBPe75dgXAp/39eR+C6pC6oFtwxFPBQ2nbJm2I9sFjgxNHPbQ/7+GQULNgZFLHJKwYk AvMQjz/1fHmBzg4HPKzOozrQiBRflRy0U5TL/vV8OsqpbNbubGk6YVA6V5SQh+ICFl+/5T0 V1d1V1mD9mKiKlJBRjGKKGhpt3bdsL2wVtwzpphEEimSHrpfcBYWjyZ8twyiu2iW5PjhH8I DqN2cQli8anBgx5D/Au9GqufCoAn/+S29pAaNuICJIzEfW/FJLVV29HHVsW+MZ2I0us1YLb FUCdxLNGLsL0QeONtBjNQbq+cI4ejjCQbhDKgWuaHXSJQ0BqzORJWphSrRm1Y/x/AziatBw 4gVnqRi4GQ4d3dip79uzEbTpG52PVfQBn5rx0rNQlDKPEAmExajnKyEQ8zHFoK3yZGI+Ra5 dDewRIriivJRlg+bcgP7TyukP06n57vD2eqYppMTqvU2ddG3LvBcDJixG0FyP4gtvGAfg8d QR9MvEd67REWQd/cHLruHw7nCfduhNQHbrB41zzs+v2f25VxE5obobjak4Jm9Ad/g== X-QQ-XMRINFO: OWPUhxQsoeAVwkVaQIEGSKwwgKCxK/fD5g== X-QQ-RECHKSPAM: 0 Content-Type: text/plain; charset="utf-8" The comments in arch/{mips,loongarch}/kvm/mmu.c refer to a non-existent function "pfn_to_pfn_prot". This is a historical typo. In MIPS, it was introduced in commit 411740f5422a ("KVM: MIPS/MMU: Implement KVM_CAP_SYNC_MMU") where the actual function being called was `gfn_to_pfn_prot`. (see `pfn =3D gfn_to_pfn_prot(kvm, gfn, write, &writeable);`). This was later replaced by `kvm_faultin_pfn()` in commit 7e8f1aa59d0b ("KVM: MIPS: Use kvm_faultin_pfn() to map pfns into the guest"). The LoongArch code, likely copied from MIPS, inherited this typo upon its introduction in commit 752e2cd7b4fb ("LoongArch: KVM: Implement kvm mmu operations"). The actual function call was likewise updated to `kvm_faultin_pfn()` in commit 14d02b7ff912 ("KVM: LoongArch: Use kvm_faultin_pfn() to map pfns into the guest"). Update the comments in both files to correctly reference the current function, `kvm_faultin_pfn`. No functional change; comments only. Fixes: 411740f5422a ("KVM: MIPS/MMU: Implement KVM_CAP_SYNC_MMU") Fixes: 752e2cd7b4fb ("LoongArch: KVM: Implement kvm mmu operations") Signed-off-by: kexinsun --- arch/loongarch/kvm/mmu.c | 2 +- arch/mips/kvm/mmu.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/loongarch/kvm/mmu.c b/arch/loongarch/kvm/mmu.c index a7fa458e3360..a3fb6ace4a98 100644 --- a/arch/loongarch/kvm/mmu.c +++ b/arch/loongarch/kvm/mmu.c @@ -803,7 +803,7 @@ static int kvm_map_page(struct kvm_vcpu *vcpu, unsigned= long gpa, bool write) retry: /* * Used to check for invalidations in progress, of the pfn that is - * returned by pfn_to_pfn_prot below. + * returned by kvm_faultin_pfn() below. */ mmu_seq =3D kvm->mmu_invalidate_seq; /* diff --git a/arch/mips/kvm/mmu.c b/arch/mips/kvm/mmu.c index d2c3b6b41f18..da51707a2366 100644 --- a/arch/mips/kvm/mmu.c +++ b/arch/mips/kvm/mmu.c @@ -574,7 +574,7 @@ static int kvm_mips_map_page(struct kvm_vcpu *vcpu, uns= igned long gpa, retry: /* * Used to check for invalidations in progress, of the pfn that is - * returned by pfn_to_pfn_prot below. + * returned by kvm_faultin_pfn() below. */ mmu_seq =3D kvm->mmu_invalidate_seq; /* --=20 2.25.1