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=1794252446; b=LtzzD9XFnJxtI3SUD4+zlzs4EonzrjBsSmdM9xn/Vrdo4CCQ+AEF3/kGD69Te/7EmCNk lCrzaOjQdvG8KwDee174ENmxVrX+GES8NJNSrK1TioC7/p/MotRmGuyGQ8f6COnVMfgeK zXSwkDzoKYXBeqYpKj59TXQT0Hy2pQQ1sVKnmg6dT6rGdk5cKqcvxafeaZYzFtNCAa+cu E0wEc9PgFbZdZy3TUMEGGfBmKR3Bf2+PXPH9AZzqK7m5x17cuaOJNz1gwk69synl+eGPu 9dvmvis+YLJqwagVUCBx4Hnzn+lWaDOLrqBOxTU24QjI1sSUVH72obGolFJVPUMXybA== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794252446; h=Received:DKIM-Signature:Date:From:To:Cc:Subject:Message-ID: References:MIME-Version:Content-Type:Content-Disposition:In-Reply-To; bh=VqI4vEj9I0PE8OdnRFGraF5rg0lsij7ceArvqc84Ggc=; b=Ukue1JBu3Q/dYR2Ok+19Ksh/IZ9UCOOkVamlXJpPPO6DEA+OwrExxv9RyoycNnESemHy VjHqUaXmVwCpPYlqxSUmVMQIEl70fQk05S2mp0Bev5SxGlssq2TW2OrypHgJuqv3lYFcp uadi0BQnoSefZdNszOPdTghQ084rSk5IlsVAEy/6An0Ustu+3irGQAQ0bF9RFoqJaDFuS wEASKsoJhbKYAXelU0SaSAAmXFBkJrhR7BLw+AbEJ2I329PILFGnaLWCwnvcxNTR46PNM tnDj6rWmoLzEAbDI5ZLQhXdWYWp3GWkuNHEOIcrI6Uq1LUkP6wrIeCRUl46CtB9xOVA== 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=ALXmOPih; 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 ADF82606A321; Mon, 9 Nov 2026 19:27:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=ALXmOPih Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0F9741F0089F; Mon, 9 Nov 2026 19:27:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1794252445; bh=VqI4vEj9I0PE8OdnRFGraF5rg0lsij7ceArvqc84Ggc=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=ALXmOPihuMxoB5rOy1DtnfFXSpYohLI+nUQJjB4I2A2RzJ6Aj6yhCZ0BqF5gxv7Yo O0WCPpcIRxOSPq5EQhKDAuJ/jqVeFdFvrcKxdH9YfftJMv6LQiU2cPSt52b7zfzJ0w 8BLKelnSCcmb4PlRkLw1CVwr6ACGGNja6hlYaWXhv2h5bOPgB27RS5U9RCj87IvJiz 63NFE51VHmkwSUvb3kCfiffJKYXpdXH281uLhRmIoGynzY3EAR6Uy82IILhivtoBbz JUmu8UXs+6+iTVqXeXSml5Me6mtfF2Ap6w8mDJg8VG4ucJtNhT3e6gbimIIY9U7kh1 vuu6o3M4OESsw== Date: Mon, 9 Nov 2026 19:27:19 +0000 From: Simon Horman To: "Nikhil P. Rao" Cc: Brett Creeley , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Guenter Roeck , Jonathan Corbet , Shuah Khan , Randy Dunlap , Kees Cook , "Gustavo A. R. Silva" , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-hwmon@vger.kernel.org, linux-doc@vger.kernel.org, linux-hardening@vger.kernel.org, Abhijit Gangurde Subject: Re: [PATCH net-next 3/4] ionic: add an auxiliary device for hardware monitoring Message-ID: <20261109192719.GA18859@horms.kernel.org> References: <20261103-pr46-b4-v1-0-850ab7fbec19@amd.com> <20261103-pr46-b4-v1-3-850ab7fbec19@amd.com> X-Mailing-List: linux-kernel@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: <20261103-pr46-b4-v1-3-850ab7fbec19@amd.com> On Tue, Nov 03, 2026 at 06:14:48PM +0000, Nikhil P. Rao wrote: > When the firmware sets IONIC_DEV_CAP_HWMON, create an "hwmon" auxiliary > device so the adapter's sensors can be exposed by a driver in > drivers/hwmon/ rather than by the Ethernet driver. > > The GETCAPS response buffer belongs to ionic for the life of the device, > not to the hwmon driver, so a command abandoned on timeout or unbind can > only write into that buffer, never into freed memory. > > Reviewed-by: Brett Creeley > Signed-off-by: Nikhil P. Rao Reviewed-by: Simon Horman