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 lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (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 47EC5C433F5 for ; Wed, 22 Dec 2021 14:01:34 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4JJw3c0Nsyz3c6t for ; Thu, 23 Dec 2021 01:01:32 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=suse.cz header.i=@suse.cz header.a=rsa-sha256 header.s=susede2_rsa header.b=mJKlTWe2; dkim=fail reason="signature verification failed" header.d=suse.cz header.i=@suse.cz header.a=ed25519-sha256 header.s=susede2_ed25519 header.b=/CXr7qnT; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=suse.cz (client-ip=195.135.220.28; helo=smtp-out1.suse.de; envelope-from=mbenes@suse.cz; receiver=) Authentication-Results: lists.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=suse.cz header.i=@suse.cz header.a=rsa-sha256 header.s=susede2_rsa header.b=mJKlTWe2; dkim=pass header.d=suse.cz header.i=@suse.cz header.a=ed25519-sha256 header.s=susede2_ed25519 header.b=/CXr7qnT; dkim-atps=neutral Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.220.28]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4JJw2p4lN4z2yQw for ; Thu, 23 Dec 2021 01:00:50 +1100 (AEDT) Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out1.suse.de (Postfix) with ESMTP id 2178A212B7; Wed, 22 Dec 2021 14:00:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_rsa; t=1640181647; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=0utRSqmLOFDMTX1m4c/q1Eo/3WAVcqCk1NnGENJ0Dsg=; b=mJKlTWe2MOa4ObQhf1wxT2JppLXljYsNaqd5AEoJzBsLK5DAZo0V/lDIVhtxHdUX2mdU6I FCaC61JDBpjvUfbRPMgVa0fM3R6BhDgv7AXzssm03YPG8GRIsEpVm5dmDqm4BxTsoDHneH idq3SuNdKG3c2+R/dEvg33VOsvROeAw= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_ed25519; t=1640181647; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=0utRSqmLOFDMTX1m4c/q1Eo/3WAVcqCk1NnGENJ0Dsg=; b=/CXr7qnTf483W1DHSVCZGHxApoDnDyO8hZhOwK7vrnOmADOpUTlBPsHmuwZXJD3qX4BlQj eMUS+aj3Hj8aBACg== Received: from pobox.suse.cz (pobox.suse.cz [10.100.2.14]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by relay2.suse.de (Postfix) with ESMTPS id 02CD4A3B89; Wed, 22 Dec 2021 14:00:47 +0000 (UTC) Date: Wed, 22 Dec 2021 15:00:46 +0100 (CET) From: Miroslav Benes To: Christophe Leroy Subject: Re: [PATCH v2 04/13] powerpc/ftrace: Add support for livepatch to PPC32 In-Reply-To: <63cb094125b6a6038c65eeac2abaabbabe63addd.1640017960.git.christophe.leroy@csgroup.eu> Message-ID: References: <63cb094125b6a6038c65eeac2abaabbabe63addd.1640017960.git.christophe.leroy@csgroup.eu> User-Agent: Alpine 2.21 (LSU 202 2017-01-01) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Petr Mladek , Joe Lawrence , Jiri Kosina , "linux-kernel@vger.kernel.org" , Steven Rostedt , Ingo Molnar , Josh Poimboeuf , "live-patching@vger.kernel.org" , "Naveen N . Rao" , "linuxppc-dev@lists.ozlabs.org" Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On Mon, 20 Dec 2021, Christophe Leroy wrote: > PPC64 needs some special logic to properly set up the TOC. > See commit 85baa095497f ("powerpc/livepatch: Add live patching support > on ppc64le") for details. > > PPC32 doesn't have TOC so it doesn't need that logic, so adding > LIVEPATCH support is straight forward. > > Add CONFIG_LIVEPATCH_64 and move livepatch stack logic into that item. > > Livepatch sample modules all work. Great. > Signed-off-by: Christophe Leroy FWIW the patch looks good to me. Miroslav