From patchwork Fri Jun 4 06:31:11 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Kumar Kartikeya Dwivedi X-Patchwork-Id: 455037 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 862AAC47097 for ; Fri, 4 Jun 2021 06:32:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 60B026140B for ; Fri, 4 Jun 2021 06:32:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230060AbhFDGeU (ORCPT ); Fri, 4 Jun 2021 02:34:20 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56110 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229831AbhFDGeR (ORCPT ); Fri, 4 Jun 2021 02:34:17 -0400 Received: from mail-pg1-x544.google.com (mail-pg1-x544.google.com [IPv6:2607:f8b0:4864:20::544]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 37411C06174A; Thu, 3 Jun 2021 23:32:32 -0700 (PDT) Received: by mail-pg1-x544.google.com with SMTP id r1so7053598pgk.8; Thu, 03 Jun 2021 23:32:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=utBE6t+L3cLZyqbBDSJJ7b7TIbKF6w8BoOa9Pvg4Aec=; b=WfcucwrV9ZSwi5Tnk9yPkJURQLFpxn81xB6s6C5EBoWheIjs7NLPw7iANfThmKRqNW aqIj84MqCBp4/rMPCI+kFQoCJpdeGNDGRAnU/XNNCqqCjjFI+raWu7RbIH9sqTg+7/i4 3GgZFj7rjsHTJcfggd8xHdz8pVaO1kgyK90jcuJu9TxeZBzgzpHsRzWADpeTwVDMJEM4 lhIWYG2Lo/oW6fLMeHO4VwJG3+Q6jRUT8olSsWVAtWTAuzcNhIv2Ba+Hx7UTYOQxMbU7 4MYJ8y7y2ynK7WNGi6WQ59siCD4T9LzvVyDA2P5asFlnQvWdYX+buwLlY+C14IWKiqTj 9sxg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=utBE6t+L3cLZyqbBDSJJ7b7TIbKF6w8BoOa9Pvg4Aec=; b=SC1v4PB0mJjKkOSUn+v2jy2oNTthojZvRwgXj6dVkv1rcuRrRu1v/immwHAJ4Nu4hq wEf7wRDNAe+Q/VJn+Vc+h/cp/y7ShMeQJCwHL9TdtNO0kKpmKICII2RCLFmM0GOOFkR3 CBy0olofolSxsWPGeLvjkA1uw6LOKl2sqI6c/R/uw47c5NKzm8vRQ1kLIptoEt/E9vTs D0vl4QFSIq5+r1uA/CrY2MqT0vsPBHtBH7W5UzjFWe1XIhYBkC/zwFjHu9VOLEjW90wB RhMN17mgmCrroglS2BUSqR1TmkOmVHbleyAoYaKXDtMsARwfxIzZVSXBK9zczyA8pXoO YJJA== X-Gm-Message-State: AOAM532r19lJGTaDc//EwCGC9/V28V1+1//NgLWHWoKyHp0Fy9pzOAAV E3lEg9rJWEDYo+aIkJybHm6tKMPGW0Y= X-Google-Smtp-Source: ABdhPJy4HgWFInYRSoDvm4cjYzITF7WQM+J6FJWqGzb2oEFWSomxYwRAVC5RJV3AW5/HQhotJrAhvA== X-Received: by 2002:aa7:99c9:0:b029:2e9:e084:e1de with SMTP id v9-20020aa799c90000b02902e9e084e1demr3090207pfi.80.1622788349912; Thu, 03 Jun 2021 23:32:29 -0700 (PDT) Received: from localhost ([2402:3a80:11cb:b599:c759:2079:3ef5:1764]) by smtp.gmail.com with ESMTPSA id t19sm927431pfg.70.2021.06.03.23.32.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 03 Jun 2021 23:32:29 -0700 (PDT) From: Kumar Kartikeya Dwivedi To: bpf@vger.kernel.org Cc: Kumar Kartikeya Dwivedi , =?utf-8?q?Toke_H=C3=B8ilan?= =?utf-8?q?d-J=C3=B8rgensen?= , Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , Jamal Hadi Salim , Vlad Buslov , Cong Wang , Jesper Dangaard Brouer , netdev@vger.kernel.org Subject: [PATCH bpf-next v2 2/7] bpf: export bpf_link functions for modules Date: Fri, 4 Jun 2021 12:01:11 +0530 Message-Id: <20210604063116.234316-3-memxor@gmail.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210604063116.234316-1-memxor@gmail.com> References: <20210604063116.234316-1-memxor@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org These are required in a subsequent patch to implement the bpf_link command for cls_bpf. Since the bpf_link object is tied to the cls_bpf_prog object, it has to be initialized and managed from inside the module. Reviewed-by: Toke Høiland-Jørgensen . Signed-off-by: Kumar Kartikeya Dwivedi --- kernel/bpf/syscall.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c index 50457019da27..e5934b748ced 100644 --- a/kernel/bpf/syscall.c +++ b/kernel/bpf/syscall.c @@ -2338,6 +2338,7 @@ void bpf_link_init(struct bpf_link *link, enum bpf_link_type type, link->ops = ops; link->prog = prog; } +EXPORT_SYMBOL_GPL(bpf_link_init); static void bpf_link_free_id(int id) { @@ -2363,6 +2364,7 @@ void bpf_link_cleanup(struct bpf_link_primer *primer) fput(primer->file); put_unused_fd(primer->fd); } +EXPORT_SYMBOL_GPL(bpf_link_cleanup); void bpf_link_inc(struct bpf_link *link) { @@ -2510,6 +2512,7 @@ int bpf_link_prime(struct bpf_link *link, struct bpf_link_primer *primer) primer->id = id; return 0; } +EXPORT_SYMBOL_GPL(bpf_link_prime); int bpf_link_settle(struct bpf_link_primer *primer) { @@ -2522,6 +2525,7 @@ int bpf_link_settle(struct bpf_link_primer *primer) /* pass through installed FD */ return primer->fd; } +EXPORT_SYMBOL_GPL(bpf_link_settle); int bpf_link_new_fd(struct bpf_link *link) {