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, Sara Sharon , Luca Coelho Subject: [PATCH 4.9 036/103] iwlwifi: mvm: fix reorder timer re-arming Date: Thu, 11 May 2017 16:12:05 +0200 Message-Id: <20170511141213.528487961@linuxfoundation.org> In-Reply-To: <20170511141210.778405364@linuxfoundation.org> References: <20170511141210.778405364@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: 4.9-stable review patch. If anyone has any objections, please let me know. ------------------ From: Sara Sharon commit 5351f9ab254c30d41659924265f1ecd7b4758d9e upstream. When NSSN is behind the reorder buffer due to timeout the reorder timer isn't getting re-armed until NSSN catches up. Fix it. Fixes: 0690405fef29 ("iwlwifi: mvm: add reorder timeout per frame") Signed-off-by: Sara Sharon Signed-off-by: Luca Coelho Signed-off-by: Greg Kroah-Hartman --- drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c @@ -409,7 +409,7 @@ static void iwl_mvm_release_frames(struc /* ignore nssn smaller than head sn - this can happen due to timeout */ if (iwl_mvm_is_sn_less(nssn, ssn, reorder_buf->buf_size)) - return; + goto set_timer; while (iwl_mvm_is_sn_less(ssn, nssn, reorder_buf->buf_size)) { int index = ssn % reorder_buf->buf_size; @@ -432,6 +432,7 @@ static void iwl_mvm_release_frames(struc } reorder_buf->head_sn = nssn; +set_timer: if (reorder_buf->num_stored && !reorder_buf->removed) { u16 index = reorder_buf->head_sn % reorder_buf->buf_size;