From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-zbxj-a87.jellyfish.systems (out-zbxj-a87.jellyfish.systems [198.54.127.87]) (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 8DE774C150B for ; Fri, 25 Sep 2026 17:44:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.54.127.87 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790358268; cv=none; b=kTuuBgZR1dpnEVL5WXO9yrybTJZm3/lqv2Qurw+ySdX9fmQZgduUdy35ehJMK03T6t4QvTLqh0CaVdEVQCzn4EPeLvvc6KSxXIgXfb7dAadSmXFaqAn0NFStF3JVLfmF784l6gav91d74ky+ladoBq4aGQEHY3oktx7fRvghZZA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790358268; c=relaxed/simple; bh=KNQ2Zt6Gpr2f4vLn+dimqs/oCjXTUXEvHihyG+8FxAQ=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=uC9Gc6wWMv8+jTu79aQ+oALpupLBHkLs6pGIJu9bDB8xhsAeVYVr925MhFrR5MEBTfsym1MYaRNP3BL/nip7efH2B3J1eWzE4szLP/EfzOayWSlFWAwQP58/0i6EbRkfelVVDEVdTKigiIynC7xGXP6GJ0m3jmdrZTcUuYvYF7s= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=tychen.cc; spf=pass smtp.mailfrom=tychen.cc; dkim=pass (2048-bit key) header.d=tychen.cc header.i=@tychen.cc header.b=lZNsW9dE; arc=none smtp.client-ip=198.54.127.87 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=tychen.cc Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=tychen.cc Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=tychen.cc header.i=@tychen.cc header.b="lZNsW9dE" Received: from 192.168.50.46 (unknown [114.92.81.237]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mail.spacemail.com (Postfix) with ESMTPSA id 4hrykC3S9hz2xFY; Fri, 25 Sep 2026 17:44:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tychen.cc; s=spacemail; t=1790358245; bh=ZwarAQKJc0UecRwQldkY/tVoIvWkDbjiv1st7cWGyJ4=; h=From:To:Cc:Subject:Date:From; b=lZNsW9dEqpDUiDE9eDZgnUEhZCz91r6Gc8fXgwdTvmpTnHScHSv24E1ufO9qRpqVE hsA4a0Sncrd15ZEmJrZG47PDmVTsf9V66L3k0hMcwAutEvjVMkKA664K4gfdbrNUZk qPUHQlZVMd9OCVyO1VUb00tlZanfqfyG6urfE55YCxC2U0b2vXsY9AMyq/yd9NhkIU 2qVTUZZTU4zUpehnHqrqrJIyLXN7SCw/+BEjfkEulM2WKdhtGizOvS6LYJBpuPMXqw CJGM5eF8dntevnh2c5ZvYYy4tt436lQplnN6lSzZ4WurA/wV3nuy5vmzrS+80/VuPJ 0I47/J7dVjyYg== From: Tianyi Chen To: bpf@vger.kernel.org Cc: qmo@kernel.org, andrii@kernel.org, eddyz87@gmail.com, ihor.solodrai@linux.dev, linux-kselftest@vger.kernel.org Subject: [PATCH bpf-next v8 0/2] bpftool: Add recursive map dumping Date: Sat, 26 Sep 2026 02:44:00 +0900 Message-ID: <20260925174402.2028649-1-hi@tychen.cc> X-Mailer: git-send-email 2.55.0 Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Envelope-From: hi@tychen.cc Add a recursive keyword to map dump to visit referenced inner maps after the selected roots, with deduplication and bounded descriptor use. Changes in v8, addressing Quentin's review: - Parse MAP first with REQ_ARGS()/map_parse_fds(), then consume trailing recursive keywords. Misplaced keywords now get the MAP parser's error. - Close selected map FDs on trailing-argument errors. - Test misplaced-keyword diagnostics and repeated recursive keywords. - Rebase onto current bpf-next. All 13 focused subtests pass in an x86-64 VM. A syscall trace also confirms that both maps selected by name are closed on an argument error. Completion and bpftool synchronization checks pass. v7: https://lore.kernel.org/r/20260924161434.95116-1-hi@tychen.cc Review: https://lore.kernel.org/r/6ed88738-4e3b-407c-90c2-bf7717f3e653@kernel.org Tianyi Chen (2): bpftool: Add recursive map dumping selftests/bpf: Cover recursive bpftool map dumps .../bpf/bpftool/Documentation/bpftool-map.rst | 15 +- tools/bpf/bpftool/bash-completion/bpftool | 3 + tools/bpf/bpftool/map.c | 147 ++++- .../bpf/prog_tests/bpftool_map_dump.c | 514 ++++++++++++++++++ 4 files changed, 665 insertions(+), 14 deletions(-) create mode 100644 tools/testing/selftests/bpf/prog_tests/bpftool_map_dump.c base-commit: 7af653d4ebf8e2e17e288715cd67ccf7845f4631 -- 2.55.0