From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7F323381B15; Thu, 12 Mar 2026 15:21:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773328882; cv=none; b=A2r5vSa2WCEdmSuyH7n51L1li1wBge+N9dUYU9K9knVkZ5VZ5vIpa2IpTvPPZVqi1WIH6z3ATW2w5Tgyb2ajsUB3Chhv43s1HRuIPGM3BYgFbIuG6mtjdrtDmSSP3iQSlktzVhNdUsplqxOf3zEkswJ+2glXOHI8UVZx8Y+Gaoc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773328882; c=relaxed/simple; bh=8Ws1xzFa987qHNjdYSXcRCicygsrPilAvv8cpq0i2Kg=; h=Date:Message-ID:From:To:Cc:Subject:In-Reply-To:References: MIME-Version:Content-Type; b=rCYfbBtERdYOqb6osnDlDl3f+U6GEqeDyGt43pcG9bQkWvQ/xCqskGxPc1Da+FXVJLUSdKIZS6tAvKRJHHuJOwXh868Q44BATLB8lwOiOTfqie2zddq52JdO85piC5EBLCXgjw67MyAi6p6RNtKZN09BVvVdxEVpjWqSWshtVzE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=uaRaR5uV; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="uaRaR5uV" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2983FC4CEF7; Thu, 12 Mar 2026 15:21:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1773328882; bh=8Ws1xzFa987qHNjdYSXcRCicygsrPilAvv8cpq0i2Kg=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=uaRaR5uV5VTngDgZP3ToWYT8ygzVyU1hcpHVuh8q6bHZ82AY7vrX7nrgmICzSHai4 jox58YuD2GHTAgtMWSSTEU+mrs/DBq42Vkemsj5vyOeZg6tAI4RbqPY2piLCYQZCYZ IWOy4WqXkZFrqa0Rf1MNlMmtWP3SdcKNRUWCMcgqyz7bm9vDNQkPBKLsypwWaX2tFk repI6H5uMTMya69Li6HqWp92c+powtDE+4uXgB6z2MTn+5tMhJ+aHCarNin0svLKHZ Oh46APp7PtjMZABTFScldtUfSxyqIIUdQCGtlzp5jYWfTVU89iYCPSMz1Lx5BRq1Y3 XbUVgioDdfoeQ== Received: from sofa.misterjones.org ([185.219.108.64] helo=goblin-girl.misterjones.org) by disco-boy.misterjones.org with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.98.2) (envelope-from ) id 1w0hqh-00000001Jtv-45vz; Thu, 12 Mar 2026 15:21:20 +0000 Date: Thu, 12 Mar 2026 15:21:19 +0000 Message-ID: <86zf4d5b0w.wl-maz@kernel.org> From: Marc Zyngier To: "Arnd Bergmann" Cc: "Vincent Donnefort" , "Arnd Bergmann" , "Steven Rostedt" , "Oliver Upton" , "Catalin Marinas" , "Will Deacon" , "Masami Hiramatsu" , "Mathieu Desnoyers" , linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org Subject: Re: [PATCH 2/3] tracing: add more symbols to whitelist In-Reply-To: References: <20260312123601.625063-1-arnd@kernel.org> <20260312123601.625063-2-arnd@kernel.org> User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI-EPG/1.14.7 (Harue) FLIM-LB/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL-LB/10.8 EasyPG/1.0.0 Emacs/30.1 (aarch64-unknown-linux-gnu) MULE/6.0 (HANACHIRUSATO) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Content-Type: text/plain; charset=US-ASCII X-SA-Exim-Connect-IP: 185.219.108.64 X-SA-Exim-Rcpt-To: arnd@arndb.de, vdonnefort@google.com, arnd@kernel.org, rostedt@goodmis.org, oupton@kernel.org, catalin.marinas@arm.com, will@kernel.org, mhiramat@kernel.org, mathieu.desnoyers@efficios.com, linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false On Thu, 12 Mar 2026 14:37:50 +0000, "Arnd Bergmann" wrote: > > On Thu, Mar 12, 2026, at 14:40, Vincent Donnefort wrote: > > On Thu, Mar 12, 2026 at 01:35:43PM +0100, Arnd Bergmann wrote: > >> diff --git a/kernel/trace/Makefile b/kernel/trace/Makefile > > >> +UNDEFINED_ALLOWLIST += ftrace_likely_update __hwasan_load __hwasan_store __hwasan_tag_memory > >> +UNDEFINED_ALLOWLIST += warn_bogus_irq_restore warn_slowpath_fmt __stack_chk_guard > > > > > Thanks for the patch. > > > > Most of those ones are covered here > > https://lore.kernel.org/all/20260312113535.2213350-1-vdonnefort@google.com/. > > > > This should fix allmodconfig. > > The ones I see in that patch look entirely different from the ones > I found. > > > For the ones not covered, I'm working on a follow-up patch using a different > > approach which should fix them. I'll be able to share it today or tomorrow. Not > > sure if we want to take this temporarily? > > I can wait, my randconfig setup has my patch applied locally for now, > but I've only fixed the ones I saw on three architectures with gcc-16.0.1, > while Nathan's list seems to be mostly for clang specific symbols. > > A lot of them also don't show up in allmodconfig builds, only after a > larger number of randconfig configurations. I've decided to take this patch anyway, on top of Vincent's. Should a more generic solution arise, I can always drop both. Thanks, M. -- Without deviation from the norm, progress is not possible.