From mboxrd@z Thu Jan 1 00:00:00 1970 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=-3.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS autolearn=no 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 589E1C2D0B1 for ; Thu, 5 Dec 2019 00:50:05 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 1E3AA2077B for ; Thu, 5 Dec 2019 00:50:05 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="HWFUmqZC" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1E3AA2077B Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linux-foundation.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id C7F256B0D74; Wed, 4 Dec 2019 19:50:04 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id C2FEE6B0D75; Wed, 4 Dec 2019 19:50:04 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id B6C056B0D76; Wed, 4 Dec 2019 19:50:04 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0231.hostedemail.com [216.40.44.231]) by kanga.kvack.org (Postfix) with ESMTP id A14D06B0D74 for ; Wed, 4 Dec 2019 19:50:04 -0500 (EST) Received: from smtpin12.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with SMTP id 695A053B3 for ; Thu, 5 Dec 2019 00:50:04 +0000 (UTC) X-FDA: 76229255928.12.rings66_9ac2a297c3c X-HE-Tag: rings66_9ac2a297c3c X-Filterd-Recvd-Size: 2495 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf21.hostedemail.com (Postfix) with ESMTP for ; Thu, 5 Dec 2019 00:50:04 +0000 (UTC) Received: from localhost.localdomain (c-73-231-172-41.hsd1.ca.comcast.net [73.231.172.41]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 3AD852077B; Thu, 5 Dec 2019 00:50:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1575507003; bh=Rl0xjDCkVRN2pOsLfBaXxUwj16RaUDc6BSbgNL6C2Kg=; h=Date:From:To:Subject:In-Reply-To:From; b=HWFUmqZCgDjKr2qfpMdTKNJz7A+2jla1334CEICN4fAWPqEEpZ7HbKybhwgzh5tT/ 3zswZwm9H35H/nwTn3mZl5qsc05CGKlv+0TSqTD7gQeti9e+E7nZXwFvvXhG/x0QEj pJ+d20/cfhuNgDd30aAHE1e/ZVivLnxGj+kKBp7g= Date: Wed, 04 Dec 2019 16:50:02 -0800 From: Andrew Morton To: adobriyan@gmail.com, akpm@linux-foundation.org, linux-mm@kvack.org, mm-commits@vger.kernel.org, torvalds@linux-foundation.org Subject: [patch 07/86] fs/proc/generic.c: delete useless "len" variable Message-ID: <20191205005002.ZiQurGiDT%akpm@linux-foundation.org> In-Reply-To: <20191204164858.fe4ed8886e34ad9f3b34ea00@linux-foundation.org> User-Agent: s-nail v14.8.16 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: From: Alexey Dobriyan Subject: fs/proc/generic.c: delete useless "len" variable Pointer to next '/' encodes length of path element and next start position. Subtraction and increment are redundant. Link: http://lkml.kernel.org/r/20191004234521.GA30246@avx2 Signed-off-by: Alexey Dobriyan Reviewed-by: Andrew Morton Signed-off-by: Andrew Morton --- fs/proc/generic.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) --- a/fs/proc/generic.c~proc-delete-useless-len-variable +++ a/fs/proc/generic.c @@ -163,7 +163,6 @@ static int __xlate_proc_name(const char { const char *cp = name, *next; struct proc_dir_entry *de; - unsigned int len; de = *ret; if (!de) @@ -174,13 +173,12 @@ static int __xlate_proc_name(const char if (!next) break; - len = next - cp; - de = pde_subdir_find(de, cp, len); + de = pde_subdir_find(de, cp, next - cp); if (!de) { WARN(1, "name '%s'\n", name); return -ENOENT; } - cp += len + 1; + cp = next + 1; } *residual = cp; *ret = de; _