From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-180.mta0.migadu.com (out-180.mta0.migadu.com [91.218.175.180]) (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 883AD2E3719 for ; Fri, 25 Jul 2025 23:38:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.218.175.180 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753486683; cv=none; b=hu95ZCgueZzzCl1LtvmfcFE+10c0IFBPzlzVFsS0Tbe7cXuwHc+tJvp10BALvFPFW8GMReSV56+0CNazOCEpJqMp54ANEIHijkD9svabdH9Rb2Hgkp9dLD8zGoRla+lJ6o7u6rntsAEtzdabSTTFEPyaU2RAFMW8gOUA+4kv7xY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753486683; c=relaxed/simple; bh=N0TfL4gpC1ZuIaRu5nGKRxW2BDTknFjgsfOBolgax5k=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=vGvlvlhlcWd1F/bfk5w22rfhqEugYx3Wrjug4lGxAnW4sAHuoWGRUsrVOx9GrXrJ4vJcFsxcsWqSfUpMA69X57DuE5SxIxVXgj7c3IW9/ZgSxajDps5CiYz8LLSc3HF8oR9nx2E0Y/+0pejZPXSRJohz8Rqh6Gnov+QVofripds= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=a1pmWihm; arc=none smtp.client-ip=91.218.175.180 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="a1pmWihm" Message-ID: <41b23698-b577-4dcc-ae43-6a7d5294dd9c@linux.dev> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1753486669; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=N0TfL4gpC1ZuIaRu5nGKRxW2BDTknFjgsfOBolgax5k=; b=a1pmWihmzf0vA+EkA2KUQzQ3CC3MUAvdYeBOjbLwoGDQ+G7wJRV0LEMx+oXcMS7zaMOdgk g6wvxjJslE6FTBgtwFcUEjeIJEujfokJlJHBWBAWtU6bN83Fw5luSNiqZ10TFVliUdTqsP PL7GePBMii0J7oaZs/OFBAbwYGjeQHA= Date: Fri, 25 Jul 2025 16:37:42 -0700 Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Subject: Re: [PATCH bpf-next v2 4/4] bpf, btf: Enforce destructor kfunc type with CFI Content-Language: en-GB To: Sami Tolvanen , bpf@vger.kernel.org Cc: Vadim Fedorenko , Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , Martin KaFai Lau , Eduard Zingerman , Song Liu , John Fastabend , KP Singh , Stanislav Fomichev , Hao Luo , Jiri Olsa , Jamal Hadi Salim , Cong Wang , Jiri Pirko , netdev@vger.kernel.org, linux-kernel@vger.kernel.org References: <20250725214401.1475224-6-samitolvanen@google.com> <20250725214401.1475224-10-samitolvanen@google.com> X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: Yonghong Song In-Reply-To: <20250725214401.1475224-10-samitolvanen@google.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Migadu-Flow: FLOW_OUT On 7/25/25 2:44 PM, Sami Tolvanen wrote: > Ensure that registered destructor kfuncs have the same type > as btf_dtor_kfunc_t to avoid a kernel panic on systems with > CONFIG_CFI_CLANG enabled. > > Signed-off-by: Sami Tolvanen Acked-by: Yonghong Song