From patchwork Tue Jan 12 07:55:14 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrii Nakryiko X-Patchwork-Id: 362738 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=-17.0 required=3.0 tests=BAYES_00, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=ham 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 4C473C433E0 for ; Tue, 12 Jan 2021 07:56:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EB21F22E00 for ; Tue, 12 Jan 2021 07:56:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2392111AbhALH4J convert rfc822-to-8bit (ORCPT ); Tue, 12 Jan 2021 02:56:09 -0500 Received: from mx0a-00082601.pphosted.com ([67.231.145.42]:54974 "EHLO mx0a-00082601.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731058AbhALH4J (ORCPT ); Tue, 12 Jan 2021 02:56:09 -0500 Received: from pps.filterd (m0109333.ppops.net [127.0.0.1]) by mx0a-00082601.pphosted.com (8.16.0.43/8.16.0.43) with SMTP id 10C7jo5e007937 for ; Mon, 11 Jan 2021 23:55:28 -0800 Received: from maileast.thefacebook.com ([163.114.130.16]) by mx0a-00082601.pphosted.com with ESMTP id 35ywme9a3v-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT) for ; Mon, 11 Jan 2021 23:55:28 -0800 Received: from intmgw002.08.frc2.facebook.com (2620:10d:c0a8:1b::d) by mail.thefacebook.com (2620:10d:c0a8:83::6) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1979.3; Mon, 11 Jan 2021 23:55:26 -0800 Received: by devbig012.ftw2.facebook.com (Postfix, from userid 137359) id AF9152ECD646; Mon, 11 Jan 2021 23:55:25 -0800 (PST) From: Andrii Nakryiko To: , , , CC: , , Hao Luo , kernel test robot , Yonghong Song Subject: [PATCH v3 bpf-next 1/7] bpf: add bpf_patch_call_args prototype to include/linux/bpf.h Date: Mon, 11 Jan 2021 23:55:14 -0800 Message-ID: <20210112075520.4103414-2-andrii@kernel.org> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20210112075520.4103414-1-andrii@kernel.org> References: <20210112075520.4103414-1-andrii@kernel.org> MIME-Version: 1.0 X-FB-Internal: Safe X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.343, 18.0.737 definitions=2021-01-12_03:2021-01-11,2021-01-12 signatures=0 X-Proofpoint-Spam-Details: rule=fb_default_notspam policy=fb_default score=0 suspectscore=0 phishscore=0 mlxscore=0 adultscore=0 lowpriorityscore=0 malwarescore=0 clxscore=1034 impostorscore=0 bulkscore=0 mlxlogscore=761 priorityscore=1501 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2101120041 X-FB-Internal: deliver Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Add bpf_patch_call_args() prototype. This function is called from BPF verifier and only if CONFIG_BPF_JIT_ALWAYS_ON is not defined. This fixes compiler warning about missing prototype in some kernel configurations. Reported-by: kernel test robot Fixes: 1ea47e01ad6e ("bpf: add support for bpf_call to interpreter") Acked-by: Yonghong Song Signed-off-by: Andrii Nakryiko --- include/linux/bpf.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/include/linux/bpf.h b/include/linux/bpf.h index 07cb5d15e743..ef9309604b3e 100644 --- a/include/linux/bpf.h +++ b/include/linux/bpf.h @@ -1403,7 +1403,10 @@ static inline void bpf_long_memcpy(void *dst, const void *src, u32 size) /* verify correctness of eBPF program */ int bpf_check(struct bpf_prog **fp, union bpf_attr *attr, union bpf_attr __user *uattr); + +#ifndef CONFIG_BPF_JIT_ALWAYS_ON void bpf_patch_call_args(struct bpf_insn *insn, u32 stack_depth); +#endif struct btf *bpf_get_btf_vmlinux(void);