From patchwork Wed Jul 20 13:28:23 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Danilo Krummrich X-Patchwork-Id: 12923983 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 1DF81C43334 for ; Wed, 20 Jul 2022 13:28:49 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id AB0E88B3A4; Wed, 20 Jul 2022 13:28:44 +0000 (UTC) Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by gabe.freedesktop.org (Postfix) with ESMTPS id E19558B39D for ; Wed, 20 Jul 2022 13:28:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1658323719; 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=hoPkCNbcHMQzr2U69upI6iZctOnJhEM36zeE95M4qzlxF580Jnq3AHcI+JqlOGKnbJFE7A 2P36eg0SN8JowwOeAmPiggDTAv6uVm4BlRX0zIHQIJV1KK0vluGRFFfMAGKz4ZZd11T+RY r1JMx6w4i8uTUBuJurlR/hTP3OfPg1c= Received: from mail-ed1-f71.google.com (mail-ed1-f71.google.com [209.85.208.71]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-515-qc0RHQjxOzO0TwgoquUSYw-1; Wed, 20 Jul 2022 09:28:38 -0400 X-MC-Unique: qc0RHQjxOzO0TwgoquUSYw-1 Received: by mail-ed1-f71.google.com with SMTP id n8-20020a05640205c800b00434fb0c150cso12051298edx.19 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=CDtEH0IEnsW/YTowtQDj6enUy9yoUw+DqYHaufZ1MHYzW+5PZAXpRJyx+PMkuICPDx s9iw/b98JRtMSLxPwSu1085M1nZYdCC9Ap6Q7jV2oVxjHvo21fTBqU1Ent2UM0hmsEfR j4qYfr2xwTIjf7Xj+Ln/Q7u4qHaGoDS0rBovUgv/E2KO0uEtPhZzArSuriTqg7TwQbaT o4D55kAdLSxVIw+l90qaY5mfsyhkIquBEb1S0Iox5tV+ibmW4LWiXeymoLCO+mM7SDSE H93pfH/F5+5sxtcq/Qdpf5I2NId9gVwFQW5FNQXibEKNO26zKFZ2evYPywlbMn8V5gfn 6QyQ== X-Gm-Message-State: AJIora8acskwkTZ+pH39CMuwKEU3Cj9xQ07FsFgccS4CuQY1zpR/sxEP LQuLda6Ek3a2XW2ul+A4GHOzuwvhFmOE8KHhHqFpzpCIJJl82U9C4UrFOZOJ4/apKQmL06dGEkU eIpBeGs8Vd5ze8C4ruwH2XFF0sLsT X-Received: by 2002:a05:6402:378f:b0:43a:d3f5:79f2 with SMTP id et15-20020a056402378f00b0043ad3f579f2mr51775757edb.338.1658323717204; 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 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 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=dakr@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Danilo Krummrich , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" 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 */