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 198402D0600; Tue, 12 Aug 2025 19:59:59 +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=1755028800; cv=none; b=JksUknkrWTWa/Y9YvUztG3Mr1YrlVsLsmcX3+8CvxY/omvoD1NS1+PFEULw6bsHbf3a/y31q3ilVSoGNL0Pk3yXkJNnvzmRxPNfCdt31FCqcs9k1W/ynUMu+dJHv2ThOtGfy9zegRM94y2rA1up7EGnHOUJwCQJgDayQlS8g8hs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755028800; c=relaxed/simple; bh=r4UtzLEZzDFdqEPdAkRCVFDyO7h19h9CQnp/IMLpMkY=; h=Date:From:To:Cc:Subject:Message-ID:MIME-Version:Content-Type: Content-Disposition:In-Reply-To; b=b/wk5YcyhNmVOwFZ+4hp5/QpLv6dGgZSSMyGgANEbNOrI+6+A8BY0ZH3jD38kipdP8evzokms6eFBITlGj5N4/KQDKXWpZRLTil3O0Mbn/5JbEMCT0Xn2V3+g7wQUjPwTp4DzUbUajw+LAeuZXkazfy3rX5af+G6wgfuFPzbA4Q= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=bU/cStZi; 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="bU/cStZi" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7DC4FC4CEF0; Tue, 12 Aug 2025 19:59:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1755028799; bh=r4UtzLEZzDFdqEPdAkRCVFDyO7h19h9CQnp/IMLpMkY=; h=Date:From:To:Cc:Subject:In-Reply-To:From; b=bU/cStZiVAT3SMZknsKUNcFwUnEg4K5bJQ9kwXG3ilkkR/pJBRdmbbb2D3fXb3qRf Jfm+/CmioJ6VPgqhxkgx7Cu2/PScIOK81wcY4zpkxphGuRYFGwbFENXPreFo1e3Q31 HyEc1vrKRFmFK8niBTCpwiP8LcEWts6bBSmMPL7BnBmtnT9Tha8qHeB+xCrFXRHFag 7Nx0aZoS08psO1QOckrg5tudtjNR+buAHuvN9jxZ1oPx4VclfIDGWrMJLsjbXnPpbk lQ4eR6pCRKoDli6La6JaNGR9cvkqLpSnf2FDmHsEEsVGLWNLdE1nK1oAD6fNTOd6Nu hUDi5iD70pZ1g== Date: Tue, 12 Aug 2025 14:59:58 -0500 From: Bjorn Helgaas To: Nam Cao Cc: Keith Busch , Nirmal Patel , Jonathan Derrick , Lorenzo Pieralisi , Krzysztof =?utf-8?Q?Wilczy=C2=B4nski?= , Manivannan Sadhasivam , Rob Herring , Bjorn Helgaas , Thomas Gleixner , linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, Ammar Faizi Subject: Re: [PATCH] PCI: vmd: Remove MSI-X check on child devices Message-ID: <20250812195958.GA203401@bhelgaas> Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250812193219.9E_pRwle@linutronix.de> On Tue, Aug 12, 2025 at 09:32:19PM +0200, Nam Cao wrote: > On Tue, Aug 12, 2025 at 02:00:36PM -0500, Bjorn Helgaas wrote: > > On Tue, Aug 12, 2025 at 08:22:09PM +0200, Nam Cao wrote: > > > Minor correction, it is not just an unnecessary WARN_ON, but child devices' > > > drivers couldn't enable MSI at all. > > > > > > So perhaps something like "Remove the sanity check to allow child devices > > > which only support MSI". > > > > Thanks, updated. > > Sorry for the extra work I have been putting on you this cycle. I > trust you understand it is for good reason. No worries, it's the nature of the beast :) I appreciate all your work!