From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 F1FB13C345F; Thu, 9 Apr 2026 13:01:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775739699; cv=none; b=qeHgpV6opLsGUm2ljmMiZ/i6uSJ2CZRIQyDQ53txGSveCx714//wLJ9VGlJpW+v1rqwI+VwmE04kyxWGNanVW3HrP9WL0eJnwwACuxZlmTQOXH4Z5CPILfcTVqjJT98VFY3B26lRevfAMKojadpz+vfBJxIX2X1XeGoQKKGbNoY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775739699; c=relaxed/simple; bh=ErkqhB3XTMjrXF4/gzU2lN8NYsLR+G/xAykedOQYTWQ=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=XNB1dldEmbuNXnOYagHWCtzZT91fyZ9zIt5/ccrxJjkmT6hbQOFlkJ8ZfWziACcaA4mXOl+m5qCTdW8LHsI4k+aFKLbQNAXj+7rukKPZ8SFwHsC8+CkEEZBSb2csXYz9lUDFVKJsqB4N2FpYcq8WMdGjvktrnSOJb1encsoxij4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=oj9lkDOg; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="oj9lkDOg" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7A923C4CEF7; Thu, 9 Apr 2026 13:01:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1775739698; bh=ErkqhB3XTMjrXF4/gzU2lN8NYsLR+G/xAykedOQYTWQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=oj9lkDOggpSM+xgiDGOL6MqaD8/1lWr2YS8pZKVJ1zkE/btZcxKND9Jf8EnMcnl8P UdnB9dxBSUahU1bFvvYEo6UxXzyrQEGbq+6f57whWhaPFI0OON4+ptSzB9c6+mMQig NG0Ljdxnm8MQ7aGq6PuRy3GJjmKpULO1N1bE2pkef6UzYM/vS/qXRRYrO46R05XImu lT/gjPwDKB1KhMcv81FVtkzpWCOrVgS8CRuYqhsQOsTMy8zRzz0C+qX946kf+LC7hW b/KNbLWRQtv9/X8XHDVt2iAng2F8dS3QJKdJaApO7iV9MzLppJ5nqqbfSDNujOIalU IdDcpph9uA6Dw== From: Will Deacon To: joro@8bytes.org, Robin Murphy Cc: catalin.marinas@arm.com, kernel-team@android.com, Will Deacon , linux@armlinux.org.uk, iommu@lists.linux.dev, linux-tegra@vger.kernel.org, Jon Hunter , Jason Gunthorpe Subject: Re: [PATCH] iommu: Ensure .iotlb_sync is called correctly Date: Thu, 9 Apr 2026 14:01:18 +0100 Message-ID: <177573643352.3408469.5575202206607092720.b4-ty@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <8982e3412563cf91e106d59228dfb6115024c75e.1775659257.git.robin.murphy@arm.com> References: <8982e3412563cf91e106d59228dfb6115024c75e.1775659257.git.robin.murphy@arm.com> Precedence: bulk X-Mailing-List: linux-tegra@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit On Wed, 08 Apr 2026 15:40:57 +0100, Robin Murphy wrote: > Many drivers have no reason to use the iotlb_gather mechanism, but do > still depend on .iotlb_sync being called to properly complete an unmap. > Since the core code is now relying on the gather to detect when there > is legitimately something to sync, it should also take care of encoding > a successful unmap when the driver does not touch the gather itself. > > > [...] Applied to iommu (fixes), thanks! [1/1] iommu: Ensure .iotlb_sync is called correctly https://git.kernel.org/iommu/c/7e0548525abd Cheers, -- Will https://fixes.arm64.dev https://next.arm64.dev https://will.arm64.dev