Received: by 2002:a25:c593:0:0:0:0:0 with SMTP id v141csp820461ybe; Wed, 4 Sep 2019 08:13:36 -0700 (PDT) X-Google-Smtp-Source: APXvYqxCrg5jT5kTmx76pf8Zmm0QlJA7RlMnr7TPFMbddY9CWjBLe6qZvQtxKDIB6APkDqgvR9TF X-Received: by 2002:a17:902:b201:: with SMTP id t1mr7935342plr.144.1567610016759; Wed, 04 Sep 2019 08:13:36 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1567610016; cv=none; d=google.com; s=arc-20160816; b=EDEeNGGuX3OA0iUmm3nLkgFMM31hYSXOKxxoTAHJB8CgSwRdeYXSM9WoOLbTORNlat qMp3pmJ5I9iYi9N8+mrE509dbh9XbvBhA59bBxfOTao6sbs4ZENQvj2UCTNxy+qSPmWy 4dM5VEXBg51zlGCKMMqu3MMvZhh0NYQ/3I+biktgi0UvhvCOTbhCSdl/a2hijHvc4E2v uKFbBhsXIH0oXhTsfff4f3eZi14+R/ZS7vjB3E+oZDMy4+7dsk8x25tg5ydDRHtF2Bf6 81AaW8M+Xm+x5Zg1nl2BHEja30erqPq4c8c7ajaXOhnhUVd55r7W7e8+MgXh2wsZDIgP JmYQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-language:in-reply-to:mime-version :user-agent:date:message-id:to:autocrypt:from:subject:references:cc :dkim-signature; bh=MLwzX2Ag6E0I65ugOCYTZJWqOcoWiPUC4NbXXvUz5AY=; b=g73leRkeEkh6nH7AlSXCFL8XJi/0E/uC7O/LCo/1FSxQzi1izto65EU2rJxQa3VffA oQ2qr5lKkisxvYMFDYSVbOrBNGhc1vbXQ57GqO8m8EA/fbH/T3CC1tqpePpL5QIdorL3 CaC5EpuKGlU5ctH4w8HZu/rXAkwGnBvYh/PJAgvgubFfdnnX/raczbHp7dUkVxVG0gCZ rvxJ1OeXMOUWPchiqGs7FtKOznN9Fno7ks/Qo81LkcTgtr/7W33U0xic4rpon168/Na7 kwa7xdVychkiw0w7OrfmfdLoL3KeJRS9WN19ugDNkUyYuj7e7i9Vu2KtkuB7vO+SPNwP r5Qw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@web.de header.s=dbaedf251592 header.b=TodkIuZt; spf=pass (google.com: best guess record for domain of linux-nfs-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-nfs-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id l14si17404654pgh.205.2019.09.04.08.13.07; Wed, 04 Sep 2019 08:13:36 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-nfs-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@web.de header.s=dbaedf251592 header.b=TodkIuZt; spf=pass (google.com: best guess record for domain of linux-nfs-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-nfs-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731332AbfIDPMW (ORCPT + 99 others); Wed, 4 Sep 2019 11:12:22 -0400 Received: from mout.web.de ([212.227.15.14]:32993 "EHLO mout.web.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725965AbfIDPMV (ORCPT ); Wed, 4 Sep 2019 11:12:21 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=web.de; s=dbaedf251592; t=1567609922; bh=MLwzX2Ag6E0I65ugOCYTZJWqOcoWiPUC4NbXXvUz5AY=; h=X-UI-Sender-Class:Cc:References:Subject:From:To:Date:In-Reply-To; b=TodkIuZtbzt7DuqFOzK8Jc/K3oX8mRYktQaWFPxqwFUla+2nyXui6FMSP9EFUjW8b K1oZI6PAx3vuQptP5RsYFiwCcdnii1lLaM+P5JFfq70m7mqGMj4t6gC6ZqvZwY3viv nU+CCEUcEU2mJpCewB6W5sSCG5YvhBJ3D+nIdU8E= X-UI-Sender-Class: c548c8c5-30a9-4db5-a2e7-cb6cb037b8f9 Received: from [192.168.1.2] ([78.49.100.89]) by smtp.web.de (mrweb003 [213.165.67.108]) with ESMTPSA (Nemesis) id 0MYw31-1hietF0Rrn-00Vhmn; Wed, 04 Sep 2019 17:12:02 +0200 Cc: linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org References: <1567490688-17872-1-git-send-email-zhongjiang@huawei.com> Subject: Re: NFS: remove the redundant check when kfree an object in nfs_netns_client_release From: Markus Elfring Autocrypt: addr=Markus.Elfring@web.de; prefer-encrypt=mutual; keydata= mQINBFg2+xABEADBJW2hoUoFXVFWTeKbqqif8VjszdMkriilx90WB5c0ddWQX14h6w5bT/A8 +v43YoGpDNyhgA0w9CEhuwfZrE91GocMtjLO67TAc2i2nxMc/FJRDI0OemO4VJ9RwID6ltwt mpVJgXGKkNJ1ey+QOXouzlErVvE2fRh+KXXN1Q7fSmTJlAW9XJYHS3BDHb0uRpymRSX3O+E2 lA87C7R8qAigPDZi6Z7UmwIA83ZMKXQ5stA0lhPyYgQcM7fh7V4ZYhnR0I5/qkUoxKpqaYLp YHBczVP+Zx/zHOM0KQphOMbU7X3c1pmMruoe6ti9uZzqZSLsF+NKXFEPBS665tQr66HJvZvY GMDlntZFAZ6xQvCC1r3MGoxEC1tuEa24vPCC9RZ9wk2sY5Csbva0WwYv3WKRZZBv8eIhGMxs rcpeGShRFyZ/0BYO53wZAPV1pEhGLLxd8eLN/nEWjJE0ejakPC1H/mt5F+yQBJAzz9JzbToU 5jKLu0SugNI18MspJut8AiA1M44CIWrNHXvWsQ+nnBKHDHHYZu7MoXlOmB32ndsfPthR3GSv jN7YD4Ad724H8fhRijmC1+RpuSce7w2JLj5cYj4MlccmNb8YUxsE8brY2WkXQYS8Ivse39MX BE66MQN0r5DQ6oqgoJ4gHIVBUv/ZwgcmUNS5gQkNCFA0dWXznQARAQABtCZNYXJrdXMgRWxm cmluZyA8TWFya3VzLkVsZnJpbmdAd2ViLmRlPokCVAQTAQgAPhYhBHDP0hzibeXjwQ/ITuU9 Figxg9azBQJYNvsQAhsjBQkJZgGABQsJCAcCBhUICQoLAgQWAgMBAh4BAheAAAoJEOU9Figx g9azcyMP/iVihZkZ4VyH3/wlV3nRiXvSreqg+pGPI3c8J6DjP9zvz7QHN35zWM++1yNek7Ar OVXwuKBo18ASlYzZPTFJZwQQdkZSV+atwIzG3US50ZZ4p7VyUuDuQQVVqFlaf6qZOkwHSnk+ CeGxlDz1POSHY17VbJG2CzPuqMfgBtqIU1dODFLpFq4oIAwEOG6fxRa59qbsTLXxyw+PzRaR LIjVOit28raM83Efk07JKow8URb4u1n7k9RGAcnsM5/WMLRbDYjWTx0lJ2WO9zYwPgRykhn2 sOyJVXk9xVESGTwEPbTtfHM+4x0n0gC6GzfTMvwvZ9G6xoM0S4/+lgbaaa9t5tT/PrsvJiob kfqDrPbmSwr2G5mHnSM9M7B+w8odjmQFOwAjfcxoVIHxC4Cl/GAAKsX3KNKTspCHR0Yag78w i8duH/eEd4tB8twcqCi3aCgWoIrhjNS0myusmuA89kAWFFW5z26qNCOefovCx8drdMXQfMYv g5lRk821ZCNBosfRUvcMXoY6lTwHLIDrEfkJQtjxfdTlWQdwr0mM5ye7vd83AManSQwutgpI q+wE8CNY2VN9xAlE7OhcmWXlnAw3MJLW863SXdGlnkA3N+U4BoKQSIToGuXARQ14IMNvfeKX NphLPpUUnUNdfxAHu/S3tPTc/E/oePbHo794dnEm57LuuQINBFg2+xABEADZg/T+4o5qj4cw nd0G5pFy7ACxk28mSrLuva9tyzqPgRZ2bdPiwNXJUvBg1es2u81urekeUvGvnERB/TKekp25 4wU3I2lEhIXj5NVdLc6eU5czZQs4YEZbu1U5iqhhZmKhlLrhLlZv2whLOXRlLwi4jAzXIZAu 76mT813jbczl2dwxFxcT8XRzk9+dwzNTdOg75683uinMgskiiul+dzd6sumdOhRZR7YBT+xC wzfykOgBKnzfFscMwKR0iuHNB+VdEnZw80XGZi4N1ku81DHxmo2HG3icg7CwO1ih2jx8ik0r riIyMhJrTXgR1hF6kQnX7p2mXe6K0s8tQFK0ZZmYpZuGYYsV05OvU8yqrRVL/GYvy4Xgplm3 DuMuC7/A9/BfmxZVEPAS1gW6QQ8vSO4zf60zREKoSNYeiv+tURM2KOEj8tCMZN3k3sNASfoG fMvTvOjT0yzMbJsI1jwLwy5uA2JVdSLoWzBD8awZ2X/eCU9YDZeGuWmxzIHvkuMj8FfX8cK/ 2m437UA877eqmcgiEy/3B7XeHUipOL83gjfq4ETzVmxVswkVvZvR6j2blQVr+MhCZPq83Ota xNB7QptPxJuNRZ49gtT6uQkyGI+2daXqkj/Mot5tKxNKtM1Vbr/3b+AEMA7qLz7QjhgGJcie qp4b0gELjY1Oe9dBAXMiDwARAQABiQI8BBgBCAAmFiEEcM/SHOJt5ePBD8hO5T0WKDGD1rMF Alg2+xACGwwFCQlmAYAACgkQ5T0WKDGD1rOYSw/+P6fYSZjTJDAl9XNfXRjRRyJSfaw6N1pA Ahuu0MIa3djFRuFCrAHUaaFZf5V2iW5xhGnrhDwE1Ksf7tlstSne/G0a+Ef7vhUyeTn6U/0m +/BrsCsBUXhqeNuraGUtaleatQijXfuemUwgB+mE3B0SobE601XLo6MYIhPh8MG32MKO5kOY hB5jzyor7WoN3ETVNQoGgMzPVWIRElwpcXr+yGoTLAOpG7nkAUBBj9n9TPpSdt/npfok9ZfL /Q+ranrxb2Cy4tvOPxeVfR58XveX85ICrW9VHPVq9sJf/a24bMm6+qEg1V/G7u/AM3fM8U2m tdrTqOrfxklZ7beppGKzC1/WLrcr072vrdiN0icyOHQlfWmaPv0pUnW3AwtiMYngT96BevfA qlwaymjPTvH+cTXScnbydfOQW8220JQwykUe+sHRZfAF5TS2YCkQvsyf7vIpSqo/ttDk4+xc Z/wsLiWTgKlih2QYULvW61XU+mWsK8+ZlYUrRMpkauN4CJ5yTpvp+Orcz5KixHQmc5tbkLWf x0n1QFc1xxJhbzN+r9djSGGN/5IBDfUqSANC8cWzHpWaHmSuU3JSAMB/N+yQjIad2ztTckZY pwT6oxng29LzZspTYUEzMz3wK2jQHw+U66qBFk8whA7B2uAU1QdGyPgahLYSOa4XAEGb6wbI FEE= To: zhong jiang , Anna Schumaker , Trond Myklebust , linux-nfs@vger.kernel.org Message-ID: Date: Wed, 4 Sep 2019 17:11:52 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.0 MIME-Version: 1.0 In-Reply-To: <1567490688-17872-1-git-send-email-zhongjiang@huawei.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US X-Provags-ID: V03:K1:bNy8P2eLzO6SWCikq/EyOnMMJ5zURVSF5DwBKeykv7kS4uLyeko Xz8h0sMGuFjOw9BGxNzqT48iA7zmqarDJwI+w1aF+HIt6k2HfGMEV/wgS36f5+PCXB1QpuX T/H3qWx5K9+lzWMvCEWFIwYduGQ0FEowZqniFhwq/Qfwo4PHp+nOQSwFHTrWmC/HAiubt09 KGb4gMPJwW1/sLMynSy7g== X-Spam-Flag: NO X-UI-Out-Filterresults: notjunk:1;V03:K0:fsNXSIjRR1Y=:IqlSQbzIUD8ciY1tvXPquH uO/Y3Zs4vhu/7pYU4lhd4XNNjJlEcfNfnt6ac2FXtnNzhkgx3bHWAwSGWY0pqoF7I8x+O1ZMl 57G/JIce+6djK0u528GakTpIQmZlV1kM/+bjdhlkotZblYc2kwG/BeOUMffqcElGAw+AQRLEy SgUKam/FAq5EUEBC/inOF420LYbqqSak6XBXObJaAF3w/bAroe1+GwXwbYIQpt3djnC3Psxyb iUzjx+N4tdZwf0tn8bUUWASO4D5eC+oSZuAyfVYz+9G6eaEDcluQF2qLr7g9VwyFIaOeeNZuA 2iMdYDTeghM2yu0vBWVqO+vQXNJ6PMLGhFnNUi9k27ywySL+vvR/mel08uedWVIbyr7eARR7l yzJFuxye0nYqDu4TuPnSrCG1Rwct9JlS7lvbj6XWBRpUjrleZuoxIjvNUK10thfy6U9NYhzl/ XDNz4PogYkSbQZXBj3VJQwIZfyYafSoFlcg5/pjEgLloYwC4N7I+tJhqDh3y77FikABLsmlE5 5XNhymYtlsNUaqvpZxtQnI+ssLCOCutLH37M6EBpksDQh0cHIQPFsXFRt+HWTQnOe7fkoxFNF 3rsmIVDzdAU+ab/z2etm+pqxqs49pG74MfyzSyS2TSa0CkbRnw6xrOSUzK/QXDu/TQCC7Ly/X v+XM70kcDDcNppIDqeV7xA/AAgjOIlY47NVMCklAA2DcUEvcQiPAKxzJ+camnLcJnHmqgxY6a zgHL8pNkvgO6ZgjAeyiWTLGBTxJpFedxwl+CmGU/7NCpsJxRz5jjYErAw9Bu+2WcPrywAoNN+ SkA4G4r2iVedguzdcEQGsxQhtN0hANfiGSTJezO+1DpsegIvF6LMdma4F0d0UGOvXvIDpHbkC kWlK96AEpXg8uthKU+212nvzNdyZDd07Dk7dbvObbEXU5XKr0NKs2Pujko5omQ1AKd68AYbV2 /FwO0Gi57M+EFJfvm4M4PUpoKF71pvhNoGXOVJ9RehrhT1wQY5Ez556j1OeTWAvGkpScOGKZp GuqQsoHXRUbixtlYfkxzqgckbcQTW7dkXXMJVjhrlmqq5yrnoQXFhNj6jHouwbLspe8EVFH1H mBU2hdrfw8QU0qWFi/HbEs+hngaA3dJNExfy0YfJz86X2Esmx/Gv5WjbyPMtc4EODaAShC2X7 MqOCidMUBeWxiOmPm67UfVfPhsWcUDcBmC6sUOl39jwB2ejaTt3Ez2qUJsmFEWNtPDzXQe2VY SSCL3al2vM+0cK/1/ Sender: linux-nfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org > kfree has taken the null check in account. I suggest to take another look at a similar patch. NFS: fix ifnullfree.cocci warnings https://lkml.org/lkml/2019/7/7/73 https://lore.kernel.org/patchwork/patch/1098005/ https://lore.kernel.org/r/alpine.DEB.2.21.1907071844310.2521@hadrien/ Regards, Markus