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=-9.6 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS 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 844D5C4741F for ; Thu, 5 Nov 2020 17:59:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1C4122074B for ; Thu, 5 Nov 2020 17:59:37 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="BVD0FscP" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731758AbgKER7f (ORCPT ); Thu, 5 Nov 2020 12:59:35 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49452 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726214AbgKER7f (ORCPT ); Thu, 5 Nov 2020 12:59:35 -0500 Received: from mail-pl1-x643.google.com (mail-pl1-x643.google.com [IPv6:2607:f8b0:4864:20::643]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 08D27C0613CF; Thu, 5 Nov 2020 09:59:35 -0800 (PST) Received: by mail-pl1-x643.google.com with SMTP id 1so1158444ple.2; Thu, 05 Nov 2020 09:59:35 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:mime-version:content-disposition; bh=9R0Npxph68AU7PWFQ4QRZSNA/O3rcswyVG3VJILrsQM=; b=BVD0FscPMU4YoqUkiSJgwQkIWgQ1LPWJgaG6bhkws4ZZuwvd5jQyHYnGZw1MpT58LM mwviSZzHufvzgRta+8sADHXxn/dh4PlzZ4lvyM8DrkYbUYzZzhrTkIzC5gpokcbkk5SL rXnVTqfNUk+AdJZsKyPPXMRcD4spEBg1nqhT0TSFmDN05qpphrlamFNpEeF+5gdqNFQI h+XcHRq1FDe0B80uL4qeNr5oAgaSfWsjl3RIzh1Lok9kEJHzKkpEq/C533uRdV1NKEPM XTg6tqp8QjmmxOOaRVaMJZ8nKN9kb2Fl3kAcQu6VnbumA1wot/A9ZiztNyrk3WMlgYJE eWmA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:mime-version :content-disposition; bh=9R0Npxph68AU7PWFQ4QRZSNA/O3rcswyVG3VJILrsQM=; b=fJ2cOsr3szdYpKhr2J4Q4GMVEF3XYL/5SLH4O9kw+UxXTQnCv3GatFoquGH3Pq/IRB XFVJTes8YlZo47UTc7aq6YcXG466AXVSD+a8uOtEfh8+rVS43LkVM1Nm6FaLiwGfU95b Xj2VjJFrHjg1sYGWLo/sLQ82VEiOVNM3UmljKufY8zLKg3DRJ60tnNSAsLI4stmXzD84 QdH5Rls4FlRtucK0tEsl9sK+RnmiKuZXSavhxYdTKh3q8F3EaAYN6IAMccsop4lxc3Zb XMzqu47yyQJA5kQq4CxiatmqevOTas0fiZTgcQYW1mACL3An60Ap7y6NlwG05WJD1f24 VXQA== X-Gm-Message-State: AOAM533//OVFWqkWoC95HA1TOWfkNFwl90viHQImU/YOuaE8EnheOmr6 W1ZVwDEAf6o6Sg6QiMSrc0E= X-Google-Smtp-Source: ABdhPJzpBzHOyBdbcoJwGu4x2cFAUIHPNF0tW4PfjHkSM901tlp4Uts8ESm2AmMKqTs0Iw8AIWneaA== X-Received: by 2002:a17:90a:17ad:: with SMTP id q42mr3643832pja.36.1604599174601; Thu, 05 Nov 2020 09:59:34 -0800 (PST) Received: from localhost ([160.202.157.3]) by smtp.gmail.com with ESMTPSA id t129sm3350731pfc.140.2020.11.05.09.59.31 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 05 Nov 2020 09:59:34 -0800 (PST) Date: Thu, 5 Nov 2020 23:29:28 +0530 From: Deepak R Varma To: Thierry Reding , David Airlie , Daniel Vetter , Jonathan Hunter , dri-devel@lists.freedesktop.org, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org Cc: mh12gx2825@gmail.com Subject: [PATCH] drm/tegra: replace idr_init() by idr_init_base() Message-ID: <20201105175928.GA42488@localhost> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org idr_init() uses base 0 which is an invalid identifier for this driver. The new function idr_init_base allows IDR to set the ID lookup from base 1. This avoids all lookups that otherwise starts from 0 since 0 is always unused. References: commit 6ce711f27500 ("idr: Make 1-based IDRs more efficient") Signed-off-by: Deepak R Varma --- drivers/gpu/drm/tegra/drm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c index ba9d1c3e7cac..e4baf07992a4 100644 --- a/drivers/gpu/drm/tegra/drm.c +++ b/drivers/gpu/drm/tegra/drm.c @@ -90,7 +90,7 @@ static int tegra_drm_open(struct drm_device *drm, struct drm_file *filp) if (!fpriv) return -ENOMEM; - idr_init(&fpriv->contexts); + idr_init_base(&fpriv->contexts, 1); mutex_init(&fpriv->lock); filp->driver_priv = fpriv; -- 2.25.1