From nobody Mon Feb 9 16:35:40 2026 Received: from smtpbgbr2.qq.com (smtpbgbr2.qq.com [54.207.22.56]) (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 990C14A00; Sun, 26 Oct 2025 15:04:08 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=54.207.22.56 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761491056; cv=none; b=B+FOr01hTzFhFnGsUBCRHtZlcXcE5zJD5/6x7oSAwLp24MKgsovExjR/m2Y8M0NbntaL4umcO6bJH/LGYucvv1RQNRMHJHrOv680YaKk/u1etE+wdf307xApKxYosgUozh8+F2gkty96513/PSkl3vWLscLsATVG+KJlbvUL09E= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761491056; c=relaxed/simple; bh=PUY8ufN7vstGylzvnbltRDJNllT5tt1XhKbAwVE5Z54=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=DeeeDaW7GpWNa6Ivvqe6+PSNIK/664Ub86fMltB/Lde/xjRpqKRL+tkrMZZ6wl+a51adq1Xpp0jiGm2+PmdNfdZcRWCWLOndFtJ7vdMmyg/F4JECxALjIFWmij7tSJUm2/3XQa+xVgVc7VLneL951O6VEsMambMXd19BY1l52SM= 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=qmYZCnpt; arc=none smtp.client-ip=54.207.22.56 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="qmYZCnpt" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=smail.nju.edu.cn; s=iohv2404; t=1761490986; bh=+Z+j6fQorgO5+luTFqPZGzIYaMBkEtHiXYbxa9t/aKU=; h=From:To:Subject:Date:Message-Id:MIME-Version; b=qmYZCnptUP+6DU5xy/xiqp16b9ymOd5+W8thqCSSPb+hcYObYLJ68DlS8Wmckjeue T45V97Nw2YVrCvVQd6L5X0vGVdwBIdD15N2gDEFHWFeCU4F6xa7w4NmIVhzXa9x4z2 lTegKfBqv2w2CrpCRb5dVDsukbI/6mZ4Az0LO/dQ= X-QQ-mid: zesmtpsz8t1761490977t568d50cd X-QQ-Originating-IP: NrAxf5G8PfEeh737gDU+xRgygti1s0gwHe4kjF8ywb0= Received: from localhost.localdomain ( [1.27.207.188]) by bizesmtp.qq.com (ESMTP) with id ; Sun, 26 Oct 2025 23:02:35 +0800 (CST) X-QQ-SSF: 0000000000000000000000000000000 X-QQ-GoodBg: 0 X-BIZMAIL-ID: 14413365355414812529 EX-QQ-RecipientCnt: 13 From: Kexin Sun To: Tianrui Zhao , Bibo Mao , Huacai Chen , Thomas Bogendoerfer Cc: kvm@vger.kernel.org, loongarch@lists.linux.dev, linux-kernel@vger.kernel.org, linux-mips@vger.kernel.org, WANG Xuerui , Julia Lawall , Yunbo Lyu , ratnadiraw , Kexin Sun Subject: [PATCH] KVM: MIPS/LoongArch: Fix typo in pfn_to_pfn_prot comments Date: Sun, 26 Oct 2025 23:02:19 +0800 Message-Id: <20251026150219.2711-1-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: zesmtpsz:smail.nju.edu.cn:qybglogicsvrgz:qybglogicsvrgz6b-0 X-QQ-XMAILINFO: NlrfLQhmr2s5c53fY0QiQxylX6NgeuqXb8Q6KRvQiWN52YrS8uLceJYs rrcBSGCpLyZGeRHrHRl1/gd5tbaPIjiHPNjfxN4pdMLu9SM2XEOcis/QzXhWS8wG1xZMrpr g/tupIJTKeDcl2fi8Zj3t8LtUo8CibKU+boBJExVAsXSImLuGJ0ZssIYkBSefHjkqTnMsvJ rXhVyICCImEJt8X1w+/pBd5JSrxR+LsQEDuOMY9N9PMC80v2lUlHBNoKlYKXTFFgZaYRzaB UfstE33LR0A1xVgUhVtyB6M381VHS35UsUl8w1di9Y10UPVudMjmtDV8e4JLbbU5eOI4G0H eM4jd4FcN5wCQ2kDBPvLGe578QqpPu18QwALHAdu015FjyBTWyxlcn/Hri7OL4M4dScoXOd RPsoWnEfJkiQGzcZ+NvIAsQwQqAdHMCqVG7klaCieuxaPsAZ44subTNz3fGWQv3y0DcWKtF 0z6EA+YSefhYRNWSeuFOd0z4c9FiWQHLMebzI7A5IKBLpVZKpZbUo23iMfboG1BgdGo8CB9 w8I3vs2FuB9JQsQnc5+KPfLpDISbjixNa9dmWnpUAJKOWrb/Bs3YqhB+AYxFentb299QQcd Q4X6UqaQ3IKGZN1DYYp5snflNmqOgLLQIFHk5bNtwxMkCtFhHKPuUk1vJMf68of/9dFwSSH vKTFji0gTuMiBmR1acLs2PqFNcKZzzxmA1c69Q0dwvTiVlUE7W+DbHD/EXk+aCDRFuVgEJs M5n0x3p4K5iYKOpQI2VLhtbhBQyixBZFfFF/RjkNDmIdxXHykv80qrJ2i3QOnBucuJmGXPk 4pYaTGCPtMhMzFqemPVbvJgK10IyotZfATqmKoX4w0mePRWJk6+ujLzQZwrwqU+sEcA9StN 7PLGvihrDHTRc5Fj/CPobFpJrTHYAQo2XJ9iEBosG3cogGVU81l7OyODXhgw2tFgTRwgwT9 Duqq3dw8SiH3utXeoIR4WaOi+PzwkW8PL+EXRqaMy33ofPfEL6NJI9Z9T9XPyq7nNr5t5yh oY02cYmzkKWK++We0qpTDFCZxSYJyyuXmUJnhYj6w4kR/3mocczCLikEnOEXU2etZe2+V/X Zaxktp8U+Q8Na6jD+3P4b4= X-QQ-XMRINFO: Nq+8W0+stu50PRdwbJxPCL0= 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: Kexin Sun --- 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 7c8143e79c12..1a9ed6f56a1b 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