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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 483A0C433EF for ; Wed, 20 Jul 2022 13:28:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236542AbiGTN2q (ORCPT ); Wed, 20 Jul 2022 09:28:46 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53140 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234317AbiGTN2l (ORCPT ); Wed, 20 Jul 2022 09:28:41 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id CC9B728E15 for ; Wed, 20 Jul 2022 06:28:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1658323720; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=gkqfIGU1jFp3Ya/5fwJtXiMW+j3VZbkqa61u3PfPfGg=; b=CjTX6GS8ElfhlcT/eXry7AJKvvQZQC+AGduQFFnkH41Kcl4oDz1g+qgI7E2zztOmJiq+cg lBHbjUVsjH37Y9ELv/RTlBg5ZHkcHSusCU0LgJdeb3Akaxh+ainfCeLBC7Aax6ED6LwzQo rfEFtUYgKoXKjo9VNrHWcvh1I3D33dk= Received: from mail-ed1-f70.google.com (mail-ed1-f70.google.com [209.85.208.70]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-224-dq3FwDOnOMGwIzj1bqoOIw-1; Wed, 20 Jul 2022 09:28:38 -0400 X-MC-Unique: dq3FwDOnOMGwIzj1bqoOIw-1 Received: by mail-ed1-f70.google.com with SMTP id g7-20020a056402424700b0043ac55ccf15so11978857edb.4 for ; Wed, 20 Jul 2022 06:28:38 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=gkqfIGU1jFp3Ya/5fwJtXiMW+j3VZbkqa61u3PfPfGg=; b=AMnECoLgAUqM6Is2rBRg8FkFCWt74V1dAoNlZCiStlRhSSY8S7Q99t4nRb5NM9qUQt Mau33hPdnXLRihTnVYw4K/BsEHLvnRb1PSmi04ljcNM8pnOh71l7p8VYttBurq+ZgB10 E3VrPnkVlKSPglHBbNhEWEhTbp9KxyRew67PVZzmkaiksk5OPZA7j4HuxzwR9685meUg bVWguFM86qe0X+EK34zeOVdiiokuSl7fy/UV+7R6iiWSMpuF+2Xm0k0q7oT7b+CYY175 rUaPaoAGzx86IUiOJRwKKz8hm8jMaURoS/hFSix6CS4C7VrOm/AwD+nxnJcuemWM7MNw /fiQ== X-Gm-Message-State: AJIora/Li7wIFsZId1qV5SSuovRNyrGHwMZpHIPZXQDr1MxY93GSGnzZ z9MXFkPzKsiidEOyhaP5ViNfsuNDAhHHkFm7orVXOibDMKuTdrzcqOgnfJ1PpHBDMLyc772GYNW E4Khflm7SOBIZ4yUJXGcq5J5J X-Received: by 2002:a05:6402:378f:b0:43a:d3f5:79f2 with SMTP id et15-20020a056402378f00b0043ad3f579f2mr51775759edb.338.1658323717205; Wed, 20 Jul 2022 06:28:37 -0700 (PDT) X-Google-Smtp-Source: AGRyM1t3fSyGyUhItvWNAfzBrVUs5sXM+vSZQoJwXk+V++H1tUF1Sa+Sg+abJ9GPTpm2/Ve6F4StiQ== X-Received: by 2002:a05:6402:378f:b0:43a:d3f5:79f2 with SMTP id et15-20020a056402378f00b0043ad3f579f2mr51775750edb.338.1658323717069; Wed, 20 Jul 2022 06:28:37 -0700 (PDT) Received: from pollux.redhat.com ([2a02:810d:4b40:2ee8:642:1aff:fe31:a15c]) by smtp.gmail.com with ESMTPSA id x7-20020a05640225c700b0043ac761db43sm12220687edb.55.2022.07.20.06.28.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 20 Jul 2022 06:28:36 -0700 (PDT) From: Danilo Krummrich To: airlied@linux.ie, daniel@ffwll.ch, mripard@kernel.org, christian.koenig@amd.com, emma@anholt.net Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Danilo Krummrich Subject: [PATCH RESEND 03/10] drm: use idr_init_base() to initialize master->magic_map Date: Wed, 20 Jul 2022 15:28:23 +0200 Message-Id: <20220720132830.193747-4-dakr@redhat.com> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220720132830.193747-1-dakr@redhat.com> References: <20220720132830.193747-1-dakr@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org idr_init_base(), implemented by commit 6ce711f27500 ("idr: Make 1-based IDRs more efficient"), let us set an arbitrary base other than idr_init(), which uses base 0. Since, for this IDR, no ID < 1 is ever requested/allocated, using idr_init_base(&idr, 1) avoids unnecessary tree walks. Signed-off-by: Danilo Krummrich Acked-by: Christian König --- drivers/gpu/drm/drm_auth.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/drm_auth.c b/drivers/gpu/drm/drm_auth.c index 6e433d465f41..63395bebaa6b 100644 --- a/drivers/gpu/drm/drm_auth.c +++ b/drivers/gpu/drm/drm_auth.c @@ -140,7 +140,7 @@ struct drm_master *drm_master_create(struct drm_device *dev) kref_init(&master->refcount); drm_master_legacy_init(master); - idr_init(&master->magic_map); + idr_init_base(&master->magic_map, 1); master->dev = dev; /* initialize the tree of output resource lessees */ -- 2.36.1