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 109B12D8DDF; Fri, 19 Dec 2025 07:55:10 +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=1766130910; cv=none; b=TnsJxxe9NkuCAVk7ftwIGxkvBQp/YVacJZmhckalw3h4KG6/zwbH8Qv4guBMSkivwu9BPo+MCuTKXpnTop0HASdZ6XKvaymjJQx9ZqtQMXMrrVGUtfLdU8vRZ6jV8MRVDqiSLB87f2o9ugjYSRlMykkQv0Tzx3lwuXtVfz6ZXMM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1766130910; c=relaxed/simple; bh=i6jm3TrdmbiSkM3odFdOiqa8jcKmRK3jnHNaNoxvwao=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=iA0HJXY5McT0zBmunaFhmTdmhyAF1X5UgKRy/qnLtJObvk68VKiMd0k6gOUNKAJalwV5TS8PLMf2keiWKOzAnu9K6ey6g3QQdW0gHQ40hCue6pm6brsFqpvPTVRmA8y7c5VTOKNIDTGlVvuRmoUl78hhp7Tric4nGSsID64ylYM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=QeS78exI; 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="QeS78exI" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3E115C4CEF1; Fri, 19 Dec 2025 07:55:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1766130909; bh=i6jm3TrdmbiSkM3odFdOiqa8jcKmRK3jnHNaNoxvwao=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=QeS78exI7ljtsGluX4FQLpXYVyMVaIryW2kIVAAVaIkS1SWKl5nOct0TGriEmsdCl PqjZfq5+9CGJsNgEDX75zFtHguzGFrzK4C3L1NpHIOSdr/6hRGFF4js3Fu+R914ua+ sqhAo3BNujOWcMKnVnNgOHFXqFy1WVL2UB8afzvbo6F4h6HVnm7OaiRRubXpGBaDDY 4MS7LuiHa5EbD+AhyFHSS2XkSyxaKvcMUmkIXaqRvyNL8O8WhDaBCeYkWtpQQT40YX 1moUz9pU9Ny1IBz7tXOdOtV0Ji8mqiXd73Tc7rMm8CXNGnoXDAm/kVrEOxGxBLRdM/ LPBVZRvJHWRoQ== Date: Fri, 19 Dec 2025 08:54:50 +0100 From: Nicolas Schier To: Ihor Solodrai Cc: Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , Martin KaFai Lau , Eduard Zingerman , Song Liu , Yonghong Song , John Fastabend , KP Singh , Stanislav Fomichev , Hao Luo , Jiri Olsa , Andrew Morton , Nathan Chancellor , Jonathan Corbet , Tejun Heo , David Vernet , Andrea Righi , Changwoo Min , Shuah Khan , Nick Desaulniers , Bill Wendling , Justin Stitt , Alan Maguire , Donglin Peng , bpf@vger.kernel.org, dwarves@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kbuild@vger.kernel.org, sched-ext@lists.linux.dev Subject: Re: [PATCH bpf-next v6 6/8] lib/Kconfig.debug: Set the minimum required pahole version to v1.22 Message-ID: Mail-Followup-To: Ihor Solodrai , Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , Martin KaFai Lau , Eduard Zingerman , Song Liu , Yonghong Song , John Fastabend , KP Singh , Stanislav Fomichev , Hao Luo , Jiri Olsa , Andrew Morton , Nathan Chancellor , Jonathan Corbet , Tejun Heo , David Vernet , Andrea Righi , Changwoo Min , Shuah Khan , Nick Desaulniers , Bill Wendling , Justin Stitt , Alan Maguire , Donglin Peng , bpf@vger.kernel.org, dwarves@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kbuild@vger.kernel.org, sched-ext@lists.linux.dev References: <20251219020006.785065-1-ihor.solodrai@linux.dev> <20251219020006.785065-7-ihor.solodrai@linux.dev> Precedence: bulk X-Mailing-List: dwarves@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20251219020006.785065-7-ihor.solodrai@linux.dev> On Thu, Dec 18, 2025 at 06:00:04PM -0800, Ihor Solodrai wrote: > Subsequent patches in the series change vmlinux linking scripts to > unconditionally pass --btf_encode_detached to pahole, which was > introduced in v1.22 [1][2]. > > This change allows to remove PAHOLE_HAS_SPLIT_BTF Kconfig option and > other checks of older pahole versions. > > [1] https://github.com/acmel/dwarves/releases/tag/v1.22 > [2] https://lore.kernel.org/bpf/cbafbf4e-9073-4383-8ee6-1353f9e5869c@oracle.com/ > > Acked-by: Eduard Zingerman > Signed-off-by: Ihor Solodrai > --- > Documentation/scheduler/sched-ext.rst | 1 - > lib/Kconfig.debug | 13 ++++--------- > scripts/Makefile.btf | 9 +-------- > tools/sched_ext/README.md | 1 - > 4 files changed, 5 insertions(+), 19 deletions(-) > > diff --git a/Documentation/scheduler/sched-ext.rst b/Documentation/scheduler/sched-ext.rst > index 404fe6126a76..9e2882d937b4 100644 > --- a/Documentation/scheduler/sched-ext.rst > +++ b/Documentation/scheduler/sched-ext.rst > @@ -43,7 +43,6 @@ options should be enabled to use sched_ext: > CONFIG_DEBUG_INFO_BTF=y > CONFIG_BPF_JIT_ALWAYS_ON=y > CONFIG_BPF_JIT_DEFAULT_ON=y > - CONFIG_PAHOLE_HAS_SPLIT_BTF=y > CONFIG_PAHOLE_HAS_BTF_TAG=y > > sched_ext is used only when the BPF scheduler is loaded and running. > diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug > index ba36939fda79..60281c4f9e99 100644 > --- a/lib/Kconfig.debug > +++ b/lib/Kconfig.debug > @@ -388,18 +388,13 @@ config DEBUG_INFO_BTF > depends on !DEBUG_INFO_SPLIT && !DEBUG_INFO_REDUCED > depends on !GCC_PLUGIN_RANDSTRUCT || COMPILE_TEST > depends on BPF_SYSCALL > - depends on PAHOLE_VERSION >= 116 > - depends on DEBUG_INFO_DWARF4 || PAHOLE_VERSION >= 121 > + depends on PAHOLE_VERSION >= 122 As CONFIG_DEBUG_INFO_BTF was the reason for 'pahole' being listed in Documentation/process/changes.rst, does it make sense to update the minimum pahole version there, too? Acked-by: Nicolas Schier