From patchwork Fri Apr 23 09:52:23 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jiapeng Chong X-Patchwork-Id: 426692 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, UNPARSEABLE_RELAY, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 70122C433ED for ; Fri, 23 Apr 2021 09:53:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 354EE6144D for ; Fri, 23 Apr 2021 09:53:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242083AbhDWJxp (ORCPT ); Fri, 23 Apr 2021 05:53:45 -0400 Received: from out30-43.freemail.mail.aliyun.com ([115.124.30.43]:45950 "EHLO out30-43.freemail.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230246AbhDWJxn (ORCPT ); Fri, 23 Apr 2021 05:53:43 -0400 X-Alimail-AntiSpam: AC=PASS; BC=-1|-1; BR=01201311R101e4; CH=green; DM=||false|; DS=||; FP=0|-1|-1|-1|0|-1|-1|-1; HT=e01e04400; MF=jiapeng.chong@linux.alibaba.com; NM=1; PH=DS; RN=8; SR=0; TI=SMTPD_---0UWUyULS_1619171545; Received: from j63c13417.sqa.eu95.tbsite.net(mailfrom:jiapeng.chong@linux.alibaba.com fp:SMTPD_---0UWUyULS_1619171545) by smtp.aliyun-inc.com(127.0.0.1); Fri, 23 Apr 2021 17:53:05 +0800 From: Jiapeng Chong To: ayush.sawal@chelsio.com Cc: vinay.yadav@chelsio.com, rohitm@chelsio.com, davem@davemloft.net, kuba@kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Jiapeng Chong Subject: [PATCH] ch_ktls: Remove redundant variable result Date: Fri, 23 Apr 2021 17:52:23 +0800 Message-Id: <1619171543-117550-1-git-send-email-jiapeng.chong@linux.alibaba.com> X-Mailer: git-send-email 1.8.3.1 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Variable result is being assigned a value from a calculation however the variable is never read, so this redundant variable can be removed. Cleans up the following clang-analyzer warning: drivers/net/ethernet/chelsio/inline_crypto/ch_ktls/chcr_ktls.c:1488:2: warning: Value stored to 'pos' is never read [clang-analyzer-deadcode.DeadStores]. drivers/net/ethernet/chelsio/inline_crypto/ch_ktls/chcr_ktls.c:876:3: warning: Value stored to 'pos' is never read [clang-analyzer-deadcode.DeadStores]. drivers/net/ethernet/chelsio/inline_crypto/ch_ktls/chcr_ktls.c:36:3: warning: Value stored to 'start' is never read [clang-analyzer-deadcode.DeadStores]. Reported-by: Abaci Robot Signed-off-by: Jiapeng Chong --- drivers/net/ethernet/chelsio/inline_crypto/ch_ktls/chcr_ktls.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/drivers/net/ethernet/chelsio/inline_crypto/ch_ktls/chcr_ktls.c b/drivers/net/ethernet/chelsio/inline_crypto/ch_ktls/chcr_ktls.c index a3f5b80..ef3f1e9 100644 --- a/drivers/net/ethernet/chelsio/inline_crypto/ch_ktls/chcr_ktls.c +++ b/drivers/net/ethernet/chelsio/inline_crypto/ch_ktls/chcr_ktls.c @@ -33,7 +33,6 @@ static int chcr_get_nfrags_to_send(struct sk_buff *skb, u32 start, u32 len) if (unlikely(start < skb_linear_data_len)) { frag_size = min(len, skb_linear_data_len - start); - start = 0; } else { start -= skb_linear_data_len; @@ -873,10 +872,10 @@ static int chcr_ktls_xmit_tcb_cpls(struct chcr_ktls_info *tx_info, } /* update receive window */ if (first_wr || tx_info->prev_win != tcp_win) { - pos = chcr_write_cpl_set_tcb_ulp(tx_info, q, tx_info->tid, pos, - TCB_RCV_WND_W, - TCB_RCV_WND_V(TCB_RCV_WND_M), - TCB_RCV_WND_V(tcp_win), 0); + chcr_write_cpl_set_tcb_ulp(tx_info, q, tx_info->tid, pos, + TCB_RCV_WND_W, + TCB_RCV_WND_V(TCB_RCV_WND_M), + TCB_RCV_WND_V(tcp_win), 0); tx_info->prev_win = tcp_win; cpl++; } @@ -1485,7 +1484,6 @@ static int chcr_ktls_tx_plaintxt(struct chcr_ktls_info *tx_info, wr->op_to_compl = htonl(FW_WR_OP_V(FW_ULPTX_WR)); wr->flowid_len16 = htonl(wr_mid | FW_WR_LEN16_V(len16)); wr->cookie = 0; - pos += sizeof(*wr); /* ULP_TXPKT */ ulptx = (struct ulp_txpkt *)(wr + 1); ulptx->cmd_dest = htonl(ULPTX_CMD_V(ULP_TX_PKT) |