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 21162EE4993 for ; Tue, 22 Aug 2023 15:32:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235924AbjHVPcj (ORCPT ); Tue, 22 Aug 2023 11:32:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42742 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237159AbjHVPcf (ORCPT ); Tue, 22 Aug 2023 11:32:35 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E8647CDA; Tue, 22 Aug 2023 08:32:32 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 8306A65AA5; Tue, 22 Aug 2023 15:32:32 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 70029C433C9; Tue, 22 Aug 2023 15:32:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1692718351; bh=SWVLPp//r8bRe/uxka3xZHJjU1aXJ+0Azy0QQ7iFZA4=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=G7bZc6Gh94fBJNL6m/7UC9ifNYvXpcOP4fpp0sAHmgAMBZPRgIJQvcYCRJJa8jgmi /cylvRSgL728Ok8/UEcGJElE59xhYwISGZFiNtZa+ArYc3iO7AocptZukLxXNvmW7k BU6m76uMoDhuNfjC5qOKzzLd+uorqbckTw4yuf6PVZWR1k2GXrA5KVFih79zWFOE+z acvBzxDmmeQBBVVSb6usz7OsYuHTcCV79x6cYf3iJD2HAGdmRFb4CzvS6nYW6aPdzJ F+ONg0pgffBpR9Mp59c8Pai29qYE7U5CbIklbE6tOpI7WNtzEfwjIZXcx2BdLdrJY1 2T1pcNVlKTciA== Received: (nullmailer pid 221574 invoked by uid 1000); Tue, 22 Aug 2023 15:32:30 -0000 Date: Tue, 22 Aug 2023 10:32:30 -0500 From: Rob Herring To: Geert Uytterhoeven Cc: Frank Rowand , Peng Fan , devicetree@vger.kernel.org, linux-renesas-soc@vger.kernel.org Subject: Re: [PATCH] of: unittest: Run overlay apply/revert sequence three times Message-ID: <20230822153230.GA219888-robh@kernel.org> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org On Tue, Aug 22, 2023 at 12:22:34PM +0200, Geert Uytterhoeven wrote: > Run the test for the overlay apply/revert sequence three times, to > test if there are unbalanced of_node_put() calls causing reference > counts to become negative. > > Signed-off-by: Geert Uytterhoeven > --- > This is a reproducer for the issue fixed by commit 7882541ca06d51a6 > ("of/platform: increase refcount of fwnode") in dt/linus. Is this necessary? There were WARN backtraces without that fix. Rob