From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-yw1-f173.google.com (mail-yw1-f173.google.com [209.85.128.173]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 675434BAA8 for ; Wed, 20 Dec 2023 22:27:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="Uop7geBs" Received: by mail-yw1-f173.google.com with SMTP id 00721157ae682-5e840338607so1902447b3.2 for ; Wed, 20 Dec 2023 14:27:14 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1703111233; x=1703716033; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=vNpUUEEGm/sXghb4A1ayJ7iYZn64QQerqvktJXH1aV4=; b=Uop7geBsEnIn1YgurDsDHB+7ef10izLOEe3R9cc2YWNS7B/INUNCM6zAQFgouCtv7x vg1ydxV0Lp9oDbP4qZcbnYccbPyFzUFrWegwdMOu40oVolI7LRN0g9W1A118bkcFKlqM STQxwSf4jgbCDMaDnaOfuKZaY/d4DSqd03LoDCDd8KbS8cI5NlxfZ7sZ4cKdce8Z6K8z 4wptn6rshgSaviROurg72iL4YyYJ5+joNRZwgedXntOkpfY2YVl8cIvR1xXVqOYgx7WY 84xDQ5qXW56bhwImqVg7/ntdLyhM97WTT+RIhMdSYc876VTHXskZ5gnbmYwO3Gnpag0Y ZXoQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1703111233; x=1703716033; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=vNpUUEEGm/sXghb4A1ayJ7iYZn64QQerqvktJXH1aV4=; b=c0aHCqBGQu9YV0ng//AGyhI0qAYCUgHy/OTa0wwLky66L4uXKB87ucCDFx9wVnBBz0 2s6/MsNL1p4+GwCip+imKr+r8C/ssQxlhxJJtVlT+gtdNeTAxfYOrD362JJr9J/Y5wM7 xyR1Ak/QyPED/zEOU7BlKnarlC2aA5HfB9I93quo5OxPX/4UI+OwKo1Zrz/WEtAXzHMe 4T7EethJOxL8GN1oib5kJOJM+i7a8XXNQKx0msXNIJY0kyqee25Tdnh7HvFl5xsdV6Pb PvuoY1ts+iqFdaQjpIZI++BW579m1pyB7iz5CHkAvBMIE4xvfoVOgRYG2fGg0JEsd/N/ Cqwg== X-Gm-Message-State: AOJu0YzaJjt8vjkBq//+veKwwsm9Y6s3fVXLv4uq2YZCaoNI0G2ij9t5 +e5OC/fIpP21ZdD7L0W3seOkSRum7IE= X-Google-Smtp-Source: AGHT+IH5Ez/tqxOfiOJVwnPSKnVnz/yts0lIuTt0X8JDBTsr+/wjuV95MC6dlGQ1UhLtTyaVn75Dyw== X-Received: by 2002:a0d:ca0b:0:b0:5e2:5b5a:c369 with SMTP id m11-20020a0dca0b000000b005e25b5ac369mr391747ywd.29.1703111233064; Wed, 20 Dec 2023 14:27:13 -0800 (PST) Received: from kickker.attlocal.net ([2600:1700:6cf8:1240:8cc1:afcb:3651:3dad]) by smtp.gmail.com with ESMTPSA id m125-20020a0dfc83000000b005ca4e49bb54sm284304ywf.142.2023.12.20.14.27.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 20 Dec 2023 14:27:12 -0800 (PST) From: thinker.li@gmail.com To: bpf@vger.kernel.org, ast@kernel.org, martin.lau@linux.dev, song@kernel.org, kernel-team@meta.com, andrii@kernel.org, drosen@google.com Cc: sinquersw@gmail.com, kuifeng@meta.com, Kui-Feng Lee Subject: [PATCH bpf-next v15 13/14] bpf: export btf_ctx_access to modules. Date: Wed, 20 Dec 2023 14:26:53 -0800 Message-Id: <20231220222654.1435895-14-thinker.li@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231220222654.1435895-1-thinker.li@gmail.com> References: <20231220222654.1435895-1-thinker.li@gmail.com> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Kui-Feng Lee The module requires the use of btf_ctx_access() to invoke bpf_tracing_btf_ctx_access() from a module. This function is valuable for implementing validation functions that ensure proper access to ctx. Signed-off-by: Kui-Feng Lee --- kernel/bpf/btf.c | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c index 860b2946de3c..81db591b4a22 100644 --- a/kernel/bpf/btf.c +++ b/kernel/bpf/btf.c @@ -6142,6 +6142,7 @@ bool btf_ctx_access(int off, int size, enum bpf_access_type type, __btf_name_by_offset(btf, t->name_off)); return true; } +EXPORT_SYMBOL_GPL(btf_ctx_access); enum bpf_struct_walk_result { /* < 0 error */ -- 2.34.1