From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-189.mta0.migadu.com (out-189.mta0.migadu.com [91.218.175.189]) (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 F4099279DC2 for ; Thu, 18 Dec 2025 19:38:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.218.175.189 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1766086726; cv=none; b=Z5ITlPd2Oavt6Nc9TmXfeJjbvLypaomfUtZw8o3weTE0d+YhkhF/jK6LeJ/X3dLw3Kvc407WObURHragYGfLbzAXJjKfJBUhfZmbmu0m4YX6Waq5fKHX1Wo0P/q0tq6EW0Ub+zOCwilDSDGprnpml+BQpS8HMzbMKa9/BptKsKI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1766086726; c=relaxed/simple; bh=zs9G8vLaSvvjBw072WIivgDUrx5yTUjoojq3hD6AQ9s=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=Ul7H+9qcC9uNb7L9niUUPzuHJ7EzkQgzLBYX6+duEOvmFYlJazA1YCdcywAoSwnBXzqjHRIoLrBiIx6pj4swGFpmLNWUxlbjQ+DfdDEErxTaJOiV+igsEV5nqiSJHOmhOL88y77sByu88b9G9Rrsvqz4Ct5CxhuviYh722AjVhE= 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=XKUGxuBM; arc=none smtp.client-ip=91.218.175.189 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="XKUGxuBM" Message-ID: <7efe93b8-84bf-42b0-b7e1-88a34c6149a2@linux.dev> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1766086717; 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=4+aZ66SXcpy+HFDJDeEqsD8XFf6KCe/mjq5DW7G+LyU=; b=XKUGxuBM8qtoz7sVNvbfD54l7of5t3cFHZJmAEo++olS+CF8EDqU7nPAqwkKMhejTnoM81 4KADT5RYhK8ZrrteBR9yGvWw4d7uxifBW4VzOrCde4uTbuxq0wJrMGDZJHWIzbW+fp0V6p SvC5yK8HFTmT2dmTiGMgAFgK++WuMKs= Date: Thu, 18 Dec 2025 11:38:31 -0800 Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Subject: Re: [PATCH bpf-next] bpf: allow calling kfuncs from raw_tp programs Content-Language: en-GB To: Puranjay Mohan , bpf@vger.kernel.org Cc: Puranjay Mohan , Alexei Starovoitov , Andrii Nakryiko , Daniel Borkmann , Martin KaFai Lau , Eduard Zingerman , Kumar Kartikeya Dwivedi , kernel-team@meta.com References: <20251218145514.339819-1-puranjay@kernel.org> X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: Yonghong Song In-Reply-To: <20251218145514.339819-1-puranjay@kernel.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Migadu-Flow: FLOW_OUT On 12/18/25 6:55 AM, Puranjay Mohan wrote: > Associate raw tracepoint program type with the kfunc tracing hook. This > allows calling kfuncs from raw_tp programs. > > Signed-off-by: Puranjay Mohan > --- > kernel/bpf/btf.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c > index 0de8fc8a0e0b..539c9fdea41d 100644 > --- a/kernel/bpf/btf.c > +++ b/kernel/bpf/btf.c > @@ -8681,6 +8681,7 @@ static int bpf_prog_type_to_kfunc_hook(enum bpf_prog_type prog_type) > return BTF_KFUNC_HOOK_STRUCT_OPS; > case BPF_PROG_TYPE_TRACING: > case BPF_PROG_TYPE_TRACEPOINT: > + case BPF_PROG_TYPE_RAW_TRACEPOINT: You need to fix the selftest progs/verifier_kfunc_prog_types.c like below: diff --git a/tools/testing/selftests/bpf/progs/verifier_kfunc_prog_types.c b/tools/testing/selftests/bpf/progs/verifier_kfunc_prog_types.c index a509cad97e69..1fce7a7e8d03 100644 --- a/tools/testing/selftests/bpf/progs/verifier_kfunc_prog_types.c +++ b/tools/testing/selftests/bpf/progs/verifier_kfunc_prog_types.c @@ -32,7 +32,7 @@ static void task_kfunc_load_test(void) } SEC("raw_tp") -__failure __msg("calling kernel function") +__success int BPF_PROG(task_kfunc_raw_tp) { task_kfunc_load_test(); @@ -86,7 +86,7 @@ static void cgrp_kfunc_load_test(void) } SEC("raw_tp") -__failure __msg("calling kernel function") +__success int BPF_PROG(cgrp_kfunc_raw_tp) { cgrp_kfunc_load_test(); @@ -138,7 +138,7 @@ static void cpumask_kfunc_load_test(void) } SEC("raw_tp") -__failure __msg("calling kernel function") +__success int BPF_PROG(cpumask_kfunc_raw_tp) { cpumask_kfunc_load_test(); > case BPF_PROG_TYPE_PERF_EVENT: > case BPF_PROG_TYPE_LSM: > return BTF_KFUNC_HOOK_TRACING; > > base-commit: ec439c38013550420aecc15988ae6acb670838c1