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 8EB60291C24; Thu, 17 Jul 2025 09:53:24 +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=1752746004; cv=none; b=CsCCRug5hoVWsEg5wkj+RqQtws1GMs04d8m2sKmdPntCuR0B2xNuYv8od15yZh4F8E0ZweQ05tq+yW/Kemhzecf72mn9hk2+PaWSjYlktASdATkbKMD3Tj5/oFH93qzPMsN55zx9Yu/wZG29o5nw6tBtx/bWiY9uC3MJJXlp2+w= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752746004; c=relaxed/simple; bh=79WBhvJn26OfZelR9I5aNME3T7KKPk5kwAHzs9mtrWo=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=kTrEegAcJyWWVMlq1d2/TMoFiIr7+GWrfX+fdbwn1/MBVpGCmY3P/VsqKfW/PJkVqYxa0SNeifra/opgozd54U2aHAivINZAJigGLRZEfAoi/b4hKcTc0639mMzosvdOgMb6UcjgR6BbN4V4FkjS8a6MzLhKfLIeshfxSj3w24U= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Ss0gnunK; 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="Ss0gnunK" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5B4A2C4CEF7; Thu, 17 Jul 2025 09:53:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1752746004; bh=79WBhvJn26OfZelR9I5aNME3T7KKPk5kwAHzs9mtrWo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Ss0gnunK0w/lqoGyuWXzxn6IwCftyipoYUczlCWvEDN+/XwvvnFYfs1jIosBn07yK cBoW022cIxh5mkGU2bumukgtJsQyRtXkbjei3Xjj0Tgqj6GP7tMJKK1NNfqdQzgoLf aMvPe3hknB23C1KbLKhwhqbVe/WZP58Uipek/jWOS3r81AN9JJlnmmZRhMaPdFqAoE utgRTYqMYqFBTjyIJ43+VDtxfa8OkTi+lTRq5Cf8sEZZFW5bGSPgcKBWuuBCCSXLDI iofq45uEXG5IK3sDKpz8vHdmx/1I2/BLOm3IHfbC7Qtwr3uNC58Iq5DViELTQU/ryR erchg6tWqfAWQ== From: Lorenzo Pieralisi To: linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Marc Zyngier Cc: Lorenzo Pieralisi , Toan Le , =?UTF-8?q?Krzysztof=20Wilczy=C5=84ski?= , Manivannan Sadhasivam , Rob Herring , Bjorn Helgaas , Thomas Gleixner Subject: Re: [PATCH v2 00/13] PCI: xgene: Fix and simplify the MSI driver Date: Thu, 17 Jul 2025 11:52:38 +0200 Message-ID: <175274579907.217726.8694214469184941348.b4-ty@kernel.org> X-Mailer: git-send-email 2.48.0 In-Reply-To: <20250708173404.1278635-1-maz@kernel.org> References: <20250708173404.1278635-1-maz@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@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 Tue, 08 Jul 2025 18:33:51 +0100, Marc Zyngier wrote: > Having recently dipped into the xgene-msi driver to bring it to use > the MSI-parent concept, I have realised that some of it was slightly > sub-par (read: downright broken). > > The driver is playing horrible tricks behind the core code, missing > proper affinity management, is terribly over-designed for no good > reason, and despite what MAINTAINERS says, completely unmaintained. > > [...] Applied to controller/xgene, thanks! [01/13] genirq: Teach handle_simple_irq() to resend an in-progress interrupt https://git.kernel.org/pci/pci/c/fad9efd72b5f [02/13] PCI: xgene: Defer probing if the MSI widget driver hasn't probed yet https://git.kernel.org/pci/pci/c/b3ffac51b6a7 [03/13] PCI: xgene: Drop useless conditional compilation https://git.kernel.org/pci/pci/c/1ded8cc14884 [04/13] PCI: xgene: Drop XGENE_PCIE_IP_VER_UNKN https://git.kernel.org/pci/pci/c/14a347069f71 [05/13] PCI: xgene-msi: Make per-CPU interrupt setup robust https://git.kernel.org/pci/pci/c/84cb4108bf6f [06/13] PCI: xgene-msi: Drop superfluous fields from xgene_msi structure https://git.kernel.org/pci/pci/c/61aeded55e5b [07/13] PCI: xgene-msi: Use device-managed memory allocations https://git.kernel.org/pci/pci/c/a782a50689d6 [08/13] PCI: xgene-msi: Get rid of intermediate tracking structure https://git.kernel.org/pci/pci/c/9a7ca398f2d4 [09/13] PCI: xgene-msi: Sanitise MSI allocation and affinity setting https://git.kernel.org/pci/pci/c/7112647f6d19 [10/13] PCI: xgene-msi: Resend an MSI racing with itself on a different CPU https://git.kernel.org/pci/pci/c/b43fa1b0691b [11/13] PCI: xgene-msi: Probe as a standard platform driver https://git.kernel.org/pci/pci/c/a435be2c3318 [12/13] PCI: xgene-msi: Restructure handler setup/teardown https://git.kernel.org/pci/pci/c/f7d447633452 [13/13] cpu/hotplug: Remove unused cpuhp_state CPUHP_PCI_XGENE_DEAD https://git.kernel.org/pci/pci/c/8db22d697c52 Thanks, Lorenzo