From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 C6A102E22B5; Sat, 4 Jul 2026 06:58:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783148337; cv=none; b=fAR3L7V+hNmKzQUVrWqStQRz/6jdyUo+fNbPjsitKkrBHoh1wUgCaEvD6s6+ee9zP6BvLYivVTvWJ8PHf1FiUm9vCK7/d4v+SxrgtPclzCRrAF7gpRp1tVlqd82c84oxKpnLgxYBGVEeSQQU5XmSrfWXrtUbX0e9CNWaFAiOls8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783148337; c=relaxed/simple; bh=B9Fx88WEfukv7fpx7vgVdh/EHWxg96ARSLx51oy9WiE=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=baDo/aSAcK1GB9DF/b5RD7blCoigXuqGzwTwz/CpvPbdx6eB230DoQLKhUP0G4BoCJPURMF8xAbyg4jj/v1sLpDGFFPcT2LENnLBFs6xNNtrI1LhZXF/i7QOnR69Oqz1WnV3EBr0wNTvKz6TIXNuMV8DtsOnx6fWz3W4bm3glZU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=zTghH1S2; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="zTghH1S2" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E577E1F000E9; Sat, 4 Jul 2026 06:58:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1783148336; bh=twxwYxRmy/ED6kdut27R9zoWYJZWRuovBYug6VGDQO8=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=zTghH1S2R3TvjyyEYlf5+GkKS1W4kHPJyIzBYOknmXCccDaU6p7Kg7GlMNw1gbN0o OJ9XFwBMS2wWs+sjpcEwz3GRSTfIzyIMUHV32MitbmYkzqCkRqRv5HNXm2evY5KE/f fjA7h3jO1Su11fdyuKp1UHhVq7wXgTD9A5F2YYXw= Date: Sat, 4 Jul 2026 08:57:40 +0200 From: Greg Kroah-Hartman To: Rosen Penev Cc: linux-usb@vger.kernel.org, Chunfeng Yun , Kees Cook , "Gustavo A. R. Silva" , "moderated list:MEDIATEK USB3 DRD IP DRIVER" , "moderated list:MEDIATEK USB3 DRD IP DRIVER" , open list , "open list:KERNEL HARDENING (not covered by other areas):Keyword:b__counted_by(_le|_be|_ptr)?b" Subject: Re: [PATCHv2] usb: mtu3: allocate phys with ssusb Message-ID: <2026070400-radiator-plaything-c266@gregkh> References: <20260703220308.294247-1-rosenp@gmail.com> Precedence: bulk X-Mailing-List: linux-usb@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: <20260703220308.294247-1-rosenp@gmail.com> On Fri, Jul 03, 2026 at 03:03:08PM -0700, Rosen Penev wrote: > Use a flexible array member to combine allocations. Slightly more > efficient to have a single allocation like this. > > Add __counted_by for extra runtime analysis. > > Signed-off-by: Rosen Penev > --- > v2: add max() call to prevent negative values. That is NOT the correct solution at all. Please do not just throw away error values and assume all will be fine. greg k-h