From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793907677; b=VzGTf7i3MUkbf1zzrnUUo2RfzdOg92Qe7jOi4HpqUTod5ZD8wYuf3KDLRTkkOlHsOQWY ucRcUysFoXQJrh2RwqhTMkUJ9GoT3Fs5pl2Ifax59R7M0Nx5sziB+Pqa1Yznyzp6M32j/ yUsSiQEbvyCZE8I6iIMtq+vCzKt+nYN0+SEN5/xkKovkgdOiUajlR9qGDsbhcAGu1si2K xB+yjr6qOzBTehpoEZTSkxGF0SdpVp0elCGGGwV5PE3WCuHWI6relKI+i6vjzCconOxeJ EE5e0vWz+abWBAZOblPxMrEMK4TuGItuSHw1JDVAb75dKA2B4PB2DytjE/3JmnyyBqQ== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793907677; h=Received:DKIM-Signature:Date:From:To:Cc:Subject:Message-ID: MIME-Version:Content-Type:Content-Disposition:In-Reply-To; bh=7xOA7/MFtPGvMkCRzH2IZM+Zp+q2YHj/nln8ZoTRBwY=; b=1GBwoZoA4vxp4nmhTaOOC912Ofv+0d/hGZfL0hVv47HNvNlFSNOP6D7F8Pr0FZq26EkN 1fQ5PB/Q1MS9WfHFe+gT4nN3P4yQIRyG7YDbRQenVS2HdX5VIu/dF6I8o3YBRhNnDH+rr hEestZBI9ySvTgaZFM28WPkRrQr9pyF5C9q2bNJNSdCPZS6S6pJKUZ5RMmHrh55ZzZPyk W6bX3cJ9GMQwVggm/FzouYEcQWXSWH7vYbuPGKTuK8rrGM5tJDyASU1dJrY08m8VtnE9+ OoR2YT4yemacv9XsB56DDTWpUT+Xt+yYCrbxm41IXjxtR4k8D6wzD2DflWa1JN47+pw== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=PagCPc1K; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A433260772A9; Thu, 5 Nov 2026 19:41:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=PagCPc1K Received: by smtp.kernel.org (Postfix) with ESMTPSA id 45CD61F0089F; Thu, 5 Nov 2026 19:41:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1793907677; bh=7xOA7/MFtPGvMkCRzH2IZM+Zp+q2YHj/nln8ZoTRBwY=; h=Date:From:To:Cc:Subject:In-Reply-To; b=PagCPc1KLJLvqSP1ak2XTtOPSr3K9Q5Ap2/nOehIHIEciNiB8UdpA5afRCvNwzLH+ 9EgbfaeT61Yqk6r+hWYx7RTy5aa35aam1ySzOL6dKjUN1CicPkZFkQC0ognTOsud0/ 4MM1q5mqwz+5na33Q5pThHnO6dPG5NT2b80JCa7/qHdLEIde0gdnEqZQh/rWIVioRP 1NzPcag3YCPc66Mxx95xh4VjFI4uS0+80hwkVqvj8V4u7IuJgk7vtAEA9p/loGt5qi kszJsuHBMOqZrPhPL/yA8DsE04t1jXsuF+dqDe9tuGl4Ha5HFZtgGrGnsCeFmVPxBq SowR5BhKazQSQ== Date: Thu, 5 Nov 2026 13:41:16 -0600 From: Bjorn Helgaas To: Keith Busch Cc: tglx@kernel.org, bhelgaas@google.com, maz@kernel.org, lrizzo@google.com, hch@lst.de, changfengnan@bytedance.com, namjain@linux.microsoft.com, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, linux-nvme@lists.infradead.org, Keith Busch Subject: Re: [PATCH 2/2] PCI/MSI: Implement irq_mask_noflush() for MSI-x Message-ID: <20261105194116.GA1553387@bhelgaas> X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20261105182706.3700908-3-kbusch@meta.com> On Thu, Nov 05, 2026 at 10:27:06AM -0800, Keith Busch wrote: > From: Keith Busch > > Skip the read-back that flushes the MSI-x mask write. Parent domains > that mask on behalf of PCI/MSI keep using their own irq_mask(). When you respin it, s/MSI-x/MSI-X/ to match spec usage