From patchwork Thu Jul 11 15:56:34 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kees Cook X-Patchwork-Id: 812463 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 ABC7B16C867; Thu, 11 Jul 2024 15:56:38 +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=1720713398; cv=none; b=ZIx+nMuFksmpvn5DtcuQgu0dPl2Z88o/OFj6jcU+B38zVwv27LqZQHdRXsBqTn1OakO9bNKNIVrZ34oVMUUCzN5IRvZ0y+pf0eKXj+sfzuist+Oz/V7eUdHW1yYOSqOFOW1kAtXxpS3zksYibYdex30BZYxVJypHoHjRWoblbXo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720713398; c=relaxed/simple; bh=SdBmAK4WejGwirzKCX1X04soOQzEtI+n5BTeCUSwg9s=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=Vxk5mYjKvSYdHvgqg8En0/l73teotLNAU5Yqj9ND+MxXb82e3MhAvJ3Y4sXCbGYCMFE43PIj+Pol1YzvaU6V+z7eE+8K9O+0ucVVUgVwat93OSNmHfWP5HXOwA+5IVP/Ke5Vhk/fRdiMZ4bQ2bUwoEORHXd+7H3yePvph4VGYeY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=WJCSzFNV; 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="WJCSzFNV" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4D7F2C4AF09; Thu, 11 Jul 2024 15:56:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1720713398; bh=SdBmAK4WejGwirzKCX1X04soOQzEtI+n5BTeCUSwg9s=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=WJCSzFNVhJ55+5nSyLmrtDjY+oVk/UlmeVmHMhf2W0FKD/HgQIQ8gdSL1Xn31i4De JPpw8uIbKsYuEeYDOSm2FMcSNOROX+0BrTvQ1/nqKvFi4L9AK9pI06GiHOElHrWSIX tftu9Wit07B0Kd5/dA3vKjp+TrjnQrhhCB9jYR8xOL4NJsS6MvHYPG895vKL62Gtem AGy69YdBsPEGws4EhVkAnreWhvPJ13E+d1Ptc/GMQ5XGuNQpARFmb7Q0kENsehFrEq Q4GXEqq/WsTFm9FPf6TQwn+KWKlGngtXYKqqneXUgDqcwX9N8QioNI01gq5w1/1+Ju yvIHlJyCj+trw== From: Kees Cook To: Sathya Prakash Veerichetty Cc: Kees Cook , Kashyap Desai , Sumit Saxena , Sreekanth Reddy , "James E.J. Bottomley" , "Martin K. Petersen" , "Gustavo A. R. Silva" , Ranjan Kumar , Stephen Rothwell , mpi3mr-linuxdrv.pdl@broadcom.com, linux-scsi@vger.kernel.org, linux-hardening@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 2/4] scsi: mpi3mr: struct mpi3_event_data_pcie_topology_change_list: Replace 1-element array with flexible array Date: Thu, 11 Jul 2024 08:56:34 -0700 Message-Id: <20240711155637.3757036-2-kees@kernel.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240711155446.work.681-kees@kernel.org> References: <20240711155446.work.681-kees@kernel.org> Precedence: bulk X-Mailing-List: linux-scsi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=2512; i=kees@kernel.org; h=from:subject; bh=SdBmAK4WejGwirzKCX1X04soOQzEtI+n5BTeCUSwg9s=; b=owEBbQKS/ZANAwAKAYly9N/cbcAmAcsmYgBmkAC0GRmeTbFMiK4EnJ9ReQW+qUVn5p7EksGrX 9fFFpP2sEiJAjMEAAEKAB0WIQSlw/aPIp3WD3I+bhOJcvTf3G3AJgUCZpAAtAAKCRCJcvTf3G3A Jr3ZD/9MS5VLvjrDTySiDG5PdGfa/Gu2iKahWUywl+qTltE785eeOnrWtOm0fKhqPgIxxhAgGXF llihInuUlVhH5l8d4UMVsrNabk7iSc3CCNrkgm4u4eW0m2xtrSRsJvfRoZvh7gpmyM+SGpeaAuu +PGymGgLtxEqRgOHFme+7ZNCFUkDvc4F0CcjOuPaS1yL+5QRahyzpPxbHe4P0anZmFvRCItZDO4 +h32JGXkwDA2ikqgjAMYT8u6WePlEIxFnMwQO8Rvsgu9nli9RuJVdosT79kTZr6i9t2auxSRP7h DE4DuSRY+T5V3NN30yO3JCSq5MsunFWAsgZaM1zURHgAcqQTPmBccdEnOwxvcpIzmcQSarzHkWm /plxqCU4SiRxRUX75ud4Z5DjlebFn+3YjxHVtxEkag76MHzOdObooigdTr+1kci3/gU47kcMKBH 8glhEi3LvnuvDAhV/yH52Ub14rigG8E7VqntZ51ElP01/+tTJSQTKj4+F4+a6ok5qtBIKFb1HgV OXa84h1AiBgUrkhgipQJhiNnpyYmlcso+0tmVnrZ6ne5E12qz6i0F5JlzKk6yfPp1c1vlfh5tMw CJ8P9uNkMtiOGDs9EzYqUAsoeEB8sRLfeQSPhsnQQ3Xgas6FFFyVO6d/78jGWQAWYWejjLg2LX9 F+nI//VyUrN/ajw== X-Developer-Key: i=kees@kernel.org; a=openpgp; fpr=A5C3F68F229DD60F723E6E138972F4DFDC6DC026 Replace the deprecated[1] use of a 1-element array in struct mpi3_event_data_pcie_topology_change_list with a modern flexible array. Additionally add __counted_by annotation since port_entry is only ever accessed in loops controlled by num_entries. For example: for (i = 0; i < event_data->num_entries; i++) { handle = le16_to_cpu(event_data->port_entry[i].attached_dev_handle); No binary differences are present after this conversion. Link: https://github.com/KSPP/linux/issues/79 [1] Signed-off-by: Kees Cook --- Cc: Sathya Prakash Veerichetty Cc: Kashyap Desai Cc: Sumit Saxena Cc: Sreekanth Reddy Cc: "James E.J. Bottomley" Cc: "Martin K. Petersen" Cc: "Gustavo A. R. Silva" Cc: Ranjan Kumar Cc: Stephen Rothwell Cc: mpi3mr-linuxdrv.pdl@broadcom.com Cc: linux-scsi@vger.kernel.org Cc: linux-hardening@vger.kernel.org --- drivers/scsi/mpi3mr/mpi/mpi30_ioc.h | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/drivers/scsi/mpi3mr/mpi/mpi30_ioc.h b/drivers/scsi/mpi3mr/mpi/mpi30_ioc.h index ae74fccc65b8..c9fa0d69b75f 100644 --- a/drivers/scsi/mpi3mr/mpi/mpi30_ioc.h +++ b/drivers/scsi/mpi3mr/mpi/mpi30_ioc.h @@ -542,9 +542,6 @@ struct mpi3_event_data_pcie_enumeration { #define MPI3_EVENT_PCIE_ENUM_ES_MAX_SWITCHES_EXCEED (0x40000000) #define MPI3_EVENT_PCIE_ENUM_ES_MAX_DEVICES_EXCEED (0x20000000) #define MPI3_EVENT_PCIE_ENUM_ES_RESOURCES_EXHAUSTED (0x10000000) -#ifndef MPI3_EVENT_PCIE_TOPO_PORT_COUNT -#define MPI3_EVENT_PCIE_TOPO_PORT_COUNT (1) -#endif struct mpi3_event_pcie_topo_port_entry { __le16 attached_dev_handle; u8 port_status; @@ -585,7 +582,7 @@ struct mpi3_event_data_pcie_topology_change_list { u8 switch_status; u8 io_unit_port; __le32 reserved0c; - struct mpi3_event_pcie_topo_port_entry port_entry[MPI3_EVENT_PCIE_TOPO_PORT_COUNT]; + struct mpi3_event_pcie_topo_port_entry port_entry[] __counted_by(num_entries); }; #define MPI3_EVENT_PCIE_TOPO_SS_NO_PCIE_SWITCH (0x00)