From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Michal Kalderon , Ariel Elior , "David S. Miller" Subject: [PATCH 4.15 03/47] qed: Fix MPA unalign flow in case header is split across two packets. Date: Thu, 29 Mar 2018 19:59:44 +0200 Message-Id: <20180329175729.415925739@linuxfoundation.org> In-Reply-To: <20180329175729.225211114@linuxfoundation.org> References: <20180329175729.225211114@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: 4.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Michal Kalderon [ Upstream commit 933e8c91b9f5a2f504f6da1f069c410449b9f4b9 ] There is a corner case in the MPA unalign flow where a FPDU header is split over two tcp segments. The length of the first fragment in this case was not initialized properly and should be '1' Fixes: c7d1d839 ("qed: Add support for MPA header being split over two tcp packets") Signed-off-by: Michal Kalderon Signed-off-by: Ariel Elior Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- drivers/net/ethernet/qlogic/qed/qed_iwarp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/net/ethernet/qlogic/qed/qed_iwarp.c +++ b/drivers/net/ethernet/qlogic/qed/qed_iwarp.c @@ -1906,8 +1906,8 @@ qed_iwarp_update_fpdu_length(struct qed_ /* Missing lower byte is now available */ mpa_len = fpdu->fpdu_length | *mpa_data; fpdu->fpdu_length = QED_IWARP_FPDU_LEN_WITH_PAD(mpa_len); - fpdu->mpa_frag_len = fpdu->fpdu_length; /* one byte of hdr */ + fpdu->mpa_frag_len = 1; fpdu->incomplete_bytes = fpdu->fpdu_length - 1; DP_VERBOSE(p_hwfn, QED_MSG_RDMA,