From patchwork Mon Mar 16 20:34:52 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nathan Chancellor X-Patchwork-Id: 222447 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=-14.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=unavailable 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 D7ECFC2BB1D for ; Mon, 16 Mar 2020 20:35:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id AADA720663 for ; Mon, 16 Mar 2020 20:35:18 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="VdQPD2e+" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732573AbgCPUfQ (ORCPT ); Mon, 16 Mar 2020 16:35:16 -0400 Received: from mail-oi1-f194.google.com ([209.85.167.194]:42516 "EHLO mail-oi1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732486AbgCPUfQ (ORCPT ); Mon, 16 Mar 2020 16:35:16 -0400 Received: by mail-oi1-f194.google.com with SMTP id 13so10386933oiy.9; Mon, 16 Mar 2020 13:35:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=2WeeeQuIf6X+Fgo34LchZIqqcKLKtS9v2wrYypr8QcQ=; b=VdQPD2e+W+dj6T/pc1K7U0NlTgVjr9jQQJP3cDhSIFn2wVwfqqIrK+OEebkM2I5DdP 6JeVtmsy3VsaNJIi8D8HiwH35Vqr/TvqZVzjip6PGSJokbfTz2xdUHuuD/qK+NbqhDmL Glco0sva6+pQPhZWzH9GLR0nAULr1i1WB5/IsucKUiF/9Gx6/LL8gg7XIVviJsuX4ZiB uQGZRfqr4wQZ/4WEmBoDzG2tddTZ9qQ2gbqdYTTT+jSTLpw9MSmZohk/sqxbi5ygP2cO 2NW29gjwY0UgluKxwgABVfDjfI0Wins3t08xeangQCzKSmpEyDYRYiC1rMgV3OrjHc7v 4sMw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=2WeeeQuIf6X+Fgo34LchZIqqcKLKtS9v2wrYypr8QcQ=; b=CKSNVcuyCmB+twr8BHPHW2VzuYou0or3qFmhXdugTULa0+6xQ302/abfnAWfAoeiZY /H3+3YO4vCVCVHqqmkYPSpWFmAZkNmAQ0evB62OVEGn++SItTiKQv3qXeoIdkWo5F1NB iU+TAQXs3hKUI+Mpp2LZQ+DQmgZ4wc5u8lh4pkdSz8Zr/xoYYYMYPSbrpLuLCcTnnt3R ZtSHS7NYJgGbT+s2WEgw+EiwJ8WOuepskx814Arz71RkoL+1f/E9OpBLx7y16RqXn9e1 pMjp4BHlNqSstf3hhW1Fa+i9HZIi5JRqJoFxzv6Zp++sBQeaHNui5sRT5o4kcz6id8uT XTWg== X-Gm-Message-State: ANhLgQ0hZAg7Ag4XmjeRFLC4DBnzhjDzT2R9ClOywxKv4GXuoiofN6Lk jRlO3n9270BrunjsSgcI8DA= X-Google-Smtp-Source: ADFU+vt05REQiVpWVawSbU9b+0kISMA+KKSDQTRxNNjoSMj/l5oSCOSmZZuFg7XjV2AsmmlGhe64nA== X-Received: by 2002:a05:6808:b17:: with SMTP id s23mr1049303oij.166.1584390914991; Mon, 16 Mar 2020 13:35:14 -0700 (PDT) Received: from localhost.localdomain ([2604:1380:4111:8b00::1]) by smtp.gmail.com with ESMTPSA id o6sm307086oti.65.2020.03.16.13.35.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 16 Mar 2020 13:35:14 -0700 (PDT) From: Nathan Chancellor To: Saeed Mahameed , Leon Romanovsky Cc: netdev@vger.kernel.org, linux-rdma@vger.kernel.org, linux-kernel@vger.kernel.org, clang-built-linux@googlegroups.com, Nathan Chancellor Subject: [PATCH] mlx5: Remove uninitialized use of key in mlx5_core_create_mkey Date: Mon, 16 Mar 2020 13:34:52 -0700 Message-Id: <20200316203452.32998-1-natechancellor@gmail.com> X-Mailer: git-send-email 2.26.0.rc1 MIME-Version: 1.0 X-Patchwork-Bot: notify Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Clang warns: ../drivers/net/ethernet/mellanox/mlx5/core/mr.c:63:21: warning: variable 'key' is uninitialized when used here [-Wuninitialized] mkey_index, key, mkey->key); ^~~ ../drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h:54:6: note: expanded from macro 'mlx5_core_dbg' ##__VA_ARGS__) ^~~~~~~~~~~ ../include/linux/dev_printk.h:114:39: note: expanded from macro 'dev_dbg' dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__) ^~~~~~~~~~~ ../include/linux/dynamic_debug.h:158:19: note: expanded from macro 'dynamic_dev_dbg' dev, fmt, ##__VA_ARGS__) ^~~~~~~~~~~ ../include/linux/dynamic_debug.h:143:56: note: expanded from macro '_dynamic_func_call' __dynamic_func_call(__UNIQUE_ID(ddebug), fmt, func, ##__VA_ARGS__) ^~~~~~~~~~~ ../include/linux/dynamic_debug.h:125:15: note: expanded from macro '__dynamic_func_call' func(&id, ##__VA_ARGS__); \ ^~~~~~~~~~~ ../drivers/net/ethernet/mellanox/mlx5/core/mr.c:47:8: note: initialize the variable 'key' to silence this warning u8 key; ^ = '\0' 1 warning generated. key's initialization was removed in commit fc6a9f86f08a ("{IB,net}/mlx5: Assign mkey variant in mlx5_ib only") but its use was not fully removed. Remove it now so that there is no more warning. Fixes: fc6a9f86f08a ("{IB,net}/mlx5: Assign mkey variant in mlx5_ib only") Link: https://github.com/ClangBuiltLinux/linux/issues/932 Signed-off-by: Nathan Chancellor --- drivers/net/ethernet/mellanox/mlx5/core/mr.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/mr.c b/drivers/net/ethernet/mellanox/mlx5/core/mr.c index fd3e6d217c3b..366f2cbfc6db 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/mr.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/mr.c @@ -44,7 +44,6 @@ int mlx5_core_create_mkey(struct mlx5_core_dev *dev, u32 mkey_index; void *mkc; int err; - u8 key; MLX5_SET(create_mkey_in, in, opcode, MLX5_CMD_OP_CREATE_MKEY); @@ -59,8 +58,7 @@ int mlx5_core_create_mkey(struct mlx5_core_dev *dev, mkey->key |= mlx5_idx_to_mkey(mkey_index); mkey->pd = MLX5_GET(mkc, mkc, pd); - mlx5_core_dbg(dev, "out 0x%x, key 0x%x, mkey 0x%x\n", - mkey_index, key, mkey->key); + mlx5_core_dbg(dev, "out 0x%x, mkey 0x%x\n", mkey_index, mkey->key); return 0; } EXPORT_SYMBOL(mlx5_core_create_mkey);