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 7ECB3C433F5 for ; Tue, 22 Mar 2022 04:38:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236507AbiCVEjl (ORCPT ); Tue, 22 Mar 2022 00:39:41 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53508 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236531AbiCVEjk (ORCPT ); Tue, 22 Mar 2022 00:39:40 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4BFA622BD0; Mon, 21 Mar 2022 21:38:09 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 7EDED6132F; Tue, 22 Mar 2022 04:38:09 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8364EC340EC; Tue, 22 Mar 2022 04:38:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1647923888; bh=igCacf334RfY5dVvzHolV+3JIBuNaugp0Il6P51645A=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=TBRJ+kEBZ7IgOw0mvKmv1FDwH2sKYKmy2RLFLMHRiDzpFX9SbDsWKEtdOKOw/dBWQ +9mu0a+OMyYVqnCiLRduoufmIDCxZ3x1hQZmivvEYoRYfR0rae4HPf2Dd9Hmkg906R UwkJchHxc1cNfEeQ5VIr8OtjTyznm+ZyYpJvfGln2LGIGk8Vs4caMC2rUFax1l1ky7 c2kONCPNMpXZe9MLC/SWiwjNqd4kBCnkel2A9kcRnlBV05lhIwZCdh1jfOhvAu2sin QkNtMb+Mqn/dXha9SEumLkX6GN5NlewyrI9ENER1nwwo4hp4JBLRPoGUn5XKlKrfAQ fiwfHE+zSL6rg== Date: Tue, 22 Mar 2022 13:38:02 +0900 From: Masami Hiramatsu To: Peter Zijlstra Cc: Stephen Rothwell , Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , Linux Kernel Mailing List , Linux Next Mailing List , mhiramat@kernel.org, rostedt@goodmis.org, ast@kernel.org, hjl.tools@gmail.com, rick.p.edgecombe@intel.com, rppt@kernel.org, linux-toolchains@vger.kernel.org, Andrew.Cooper3@citrix.com, ndesaulniers@google.com Subject: Re: linux-next: build warnings after merge of the tip tree Message-Id: <20220322133802.dbb6ae20968344960091591c@kernel.org> In-Reply-To: References: <20220321140327.777f9554@canb.auug.org.au> X-Mailer: Sylpheed 3.7.0 (GTK+ 2.24.32; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-next@vger.kernel.org On Mon, 21 Mar 2022 14:45:16 +0100 Peter Zijlstra wrote: > On Mon, Mar 21, 2022 at 02:08:23PM +0100, Peter Zijlstra wrote: > > On Mon, Mar 21, 2022 at 02:04:05PM +0100, Peter Zijlstra wrote: > > > On Mon, Mar 21, 2022 at 01:55:49PM +0100, Peter Zijlstra wrote: > > > > On Mon, Mar 21, 2022 at 02:03:27PM +1100, Stephen Rothwell wrote: > > > > > Hi all, > > > > > > > > > > After merging the tip tree, today's linux-next build (x864 allmodconfig) > > > > > produced these new warnings: > > > > > > > > > > vmlinux.o: warning: objtool: arch_rethook_prepare()+0x55: relocation to !ENDBR: arch_rethook_trampoline+0x0 > > > > > vmlinux.o: warning: objtool: arch_rethook_trampoline_callback()+0x3e: relocation to !ENDBR: arch_rethook_trampoline+0x0 > > > > > vmlinux.o: warning: objtool: unwind_next_frame()+0x93e: relocation to !ENDBR: arch_rethook_trampoline+0x0 > > > > > vmlinux.o: warning: objtool: unwind_next_frame()+0x5f2: relocation to !ENDBR: arch_rethook_trampoline+0x0 > > > > > vmlinux.o: warning: objtool: unwind_next_frame()+0x4a7: relocation to !ENDBR: arch_rethook_trampoline+0x0 > > > > > vmlinux.o: warning: objtool: __rethook_find_ret_addr()+0x81: relocation to !ENDBR: arch_rethook_trampoline+0x0 > > > > > vmlinux.o: warning: objtool: __rethook_find_ret_addr()+0x90: relocation to !ENDBR: arch_rethook_trampoline+0x0 > > > > > vmlinux.o: warning: objtool: rethook_trampoline_handler()+0x8c: relocation to !ENDBR: arch_rethook_trampoline+0x0 > > > > > vmlinux.o: warning: objtool: rethook_trampoline_handler()+0x9b: relocation to !ENDBR: arch_rethook_trampoline+0x0 > > > > > > > > Hurmph, lemme go figure out where that code comes from, I've not seen > > > > those. > > > > > > Ahh, something tracing. I'll go do some patches on top of it. > > > > Also, that x86 patch has never his x86@kernel.org and doesn't have an > > ACK from any x86 person :-((( > > Worse, it adds a 3rd return trampoline without replacing any of the > existing two :-( Sorry about this. I missed to add Ccing to arch maintainers. Let me check how I can fix those errors. Thanks. > > Why was this merged? -- Masami Hiramatsu