From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ed1-f73.google.com (mail-ed1-f73.google.com [209.85.208.73]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7B6373845D0 for ; Tue, 23 Jun 2026 14:17:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.208.73 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782224280; cv=none; b=ew2RQ7YfVUHqwnbELAbZubB6SfHF4rTl3lQq5lZ1vsYHHQGVb+yjakUBDGqAnOKza1ZyZKTnaZX1aYyj0Jcb97b+XTIja5YD5F4CqiJMp5S2k+pEm231AQ+hT9zWKoGjgyFsoCbzTzcHL/JarDhICjFPV1hZeIEe7q+fBkvoZlI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782224280; c=relaxed/simple; bh=gJ/BZZX/VoYI6bSRTUaDtDUq1W4QMmABXMmgl2/hCOc=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=OC7TC8xexCaQFMu6U96j/K8YIAWHWuI2MV6LKAUwg4oM5DjubVuBZUkIr9CBkaq53yqXLSoPQ1JFaPGZ59gj1G2sVDSN2Ow0OGa3+Raai/fCar4y1hI2xWH5iEB7E9ucTuanSuN+4w761Kga7gpfSFVwIwBa2HkCNmLJGOaPq+E= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--mbsh.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=ChM3DrTU; arc=none smtp.client-ip=209.85.208.73 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--mbsh.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="ChM3DrTU" Received: by mail-ed1-f73.google.com with SMTP id 4fb4d7f45d1cf-695c6b2814cso5845146a12.1 for ; Tue, 23 Jun 2026 07:17:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20251104; t=1782224278; x=1782829078; darn=vger.kernel.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=gJ/BZZX/VoYI6bSRTUaDtDUq1W4QMmABXMmgl2/hCOc=; b=ChM3DrTU5beGFY6Baz+XVHi4x35OmZMA6inBXM3/lNEyiQeQmkp8XOVh0FZro2wl2U StW9fZNE/IgvoyVvpv2DvZc3tsiqBvys9UwsmZAG2nHBErsalrbtjs4OTuPhyOvv6L4s LxrTPeDsxcuduu3xP2UhUQn/XM2JLvsRnz1jpipyOByR96Co9qbpmsf8diKc0lT2G72q 9oZ4X45kwsxnpsHNQFxcKALnCnr37cJY896y+EH6u8cSjNoceg/emlx2JHdkzF3R83rJ ezOuJ2yCPkebHqKAUvKC36Uq/W9mZQmFUmqvKoLDo3Hizuvqa9+taOccov2zgtYcdTSY NuBg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1782224278; x=1782829078; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=gJ/BZZX/VoYI6bSRTUaDtDUq1W4QMmABXMmgl2/hCOc=; b=gS73RqJ3izK2FaKFmHfEwlS/EL1kIJM9WzUxrxtXBiToz5keNu3gDYxn4mm6T0A6NM ov7LnQ1YlBQFodjyO5lGn2cE3wd5zlSeVZDEU80fyjxoplv1yjI8IcCGsirPq/6OKuTn LbAkzWtKMXC5w9SENLhMwScWPqyoxvpi5tNVox0dDxgkhsTOZCKyvAEXwy6FNGedzIM7 9kp5K5RmjzdrOAHeydKfGlabBWkABEPU0mMTvUHsChwYB8svnhBjWRnSbAF5TQoQHEmG ktnH+44rOtHLQZxh6/8/aTJVAGS4/rL1l8O+kDopR5Pmqug90ua8an1HGoIIfu9ITCCq tQww== X-Forwarded-Encrypted: i=1; AFNElJ/+5Dv4u35xTUn0sfFdJ3cNzYDXevHYkUNMDvVRv5SNtVFmJRvhK4+sTtjz7bnLUEjN1ACpIqByAUqgGK4=@vger.kernel.org X-Gm-Message-State: AOJu0YxxiR4y8Tc7djFL0574VQI3onIaiPZ0pubenoETVmQWxXhOTNnt Xu/VTxcFD39TtQojzM/JDPRrbmVZ3/il0VlqDzauWD3wt11+Tg1VGs1sByLJlsCDa0q1+w6B3Q= = X-Received: from edre21.prod.google.com ([2002:a50:ec95:0:b0:697:deff:6770]) (user=mbsh job=prod-delivery.src-stubby-dispatcher) by 2002:a05:6402:3205:b0:68d:4450:d21 with SMTP id 4fb4d7f45d1cf-696ee621b1amr9700741a12.8.1782224276897; Tue, 23 Jun 2026 07:17:56 -0700 (PDT) Date: Tue, 23 Jun 2026 14:17:53 +0000 In-Reply-To: <20260503-x86-init-cleanup-v2-2-bb690bd2477c@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20260503-x86-init-cleanup-v2-2-bb690bd2477c@google.com> X-Mailer: git-send-email 2.55.0.rc0.786.g65d90a0328-goog Message-ID: <20260623141753.1407040-1-mbsh@google.com> Subject: Re: [PATCH v2 2/3] x86/mm: simplify calculation of max_pfn_mapped From: Marcel Busch To: jackmanb@google.com Cc: bp@alien8.de, dave.hansen@linux.intel.com, hpa@zytor.com, linux-kernel@vger.kernel.org, luto@kernel.org, mingo@redhat.com, peterz@infradead.org, tglx@kernel.org, x86@kernel.org, Marcel Busch Content-Type: text/plain; charset="UTF-8" This change simplifies the confusing return value of kernel_physical_mapping_init. As Dave suggested, consider moving assignment to paddr_last after the loop. Tested using qemu-system-x86_64 (11.0.1) -machine q35. Reviewed-by: Marcel Busch Tested-by: Marcel Busch