From patchwork Thu Mar 27 08:34:42 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hou Tao X-Patchwork-Id: 14030838 X-Patchwork-Delegate: bpf@iogearbox.net Received: from dggsgout11.his.huawei.com (dggsgout11.his.huawei.com [45.249.212.51]) (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 62FB4204F75 for ; Thu, 27 Mar 2025 08:22:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.51 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743063779; cv=none; b=BITdouR4ZQQ0JC2kLx5gcB7NkUs2BweiiS7t8UjfQksMHTSHOVeW+tNI0L1GOphchEUXO5ZWBQcBddDAcFLljH62Hulhjiv5KXlx4YqpyOjreW27wXOQyamcnCZxySzXqRwg5r+UPURfSQ3gUKZ/MVP7bCy4oCZt3Rbc1Ya28ns= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743063779; c=relaxed/simple; bh=ZgPbk1e+Tp2MrrcUgfu90AqAohp4UtLMSd85UTZOyJA=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=Fi1Fen21aVDhJHjXqGl9CEuOAvNa66/QqWm4+t1V4CwfBG+j59PUrC5tzM3XJ75GmfghAHJ35xQ53a6Q8iukiNZQMGEDPxv2cotgP1kFTSC5xriuj8EvJ65R48B0qRAejIDBVcm7ELz9JfjjoczVkFKyz/NuOguWv7NkUWg4vG0= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=huaweicloud.com; spf=pass smtp.mailfrom=huaweicloud.com; arc=none smtp.client-ip=45.249.212.51 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=huaweicloud.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huaweicloud.com Received: from mail.maildlp.com (unknown [172.19.93.142]) by dggsgout11.his.huawei.com (SkyGuard) with ESMTP id 4ZNc8h31bmz4f3m76 for ; Thu, 27 Mar 2025 16:22:28 +0800 (CST) Received: from mail02.huawei.com (unknown [10.116.40.128]) by mail.maildlp.com (Postfix) with ESMTP id DD8AF1A0CD6 for ; Thu, 27 Mar 2025 16:22:52 +0800 (CST) Received: from huaweicloud.com (unknown [10.175.124.27]) by APP4 (Coremail) with SMTP id gCh0CgAXe1_XCuVnluzSHg--.7420S7; Thu, 27 Mar 2025 16:22:52 +0800 (CST) From: Hou Tao To: bpf@vger.kernel.org Cc: Martin KaFai Lau , Alexei Starovoitov , Andrii Nakryiko , Eduard Zingerman , Song Liu , Hao Luo , Yonghong Song , Daniel Borkmann , KP Singh , Stanislav Fomichev , Jiri Olsa , John Fastabend , houtao1@huawei.com Subject: [PATCH bpf-next v3 03/16] bpf: Add helper bpf_map_has_dynptr_key() Date: Thu, 27 Mar 2025 16:34:42 +0800 Message-Id: <20250327083455.848708-4-houtao@huaweicloud.com> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20250327083455.848708-1-houtao@huaweicloud.com> References: <20250327083455.848708-1-houtao@huaweicloud.com> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-CM-TRANSID: gCh0CgAXe1_XCuVnluzSHg--.7420S7 X-Coremail-Antispam: 1UD129KBjvdXoW7XF1xJF1UAr4DGF18JFy3XFb_yoW3Xwc_Z3 WxWF4xGws8uFnxX340ka1Iqry3G3WxJFn7XrZYvF13ZF1rZws8tw48Ar93Z34xWrs7GF47 Gas5WrWxXr47WjkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUbq8YFVCjjxCrM7AC8VAFwI0_Wr0E3s1l1xkIjI8I6I8E6xAIw20E Y4v20xvaj40_Wr0E3s1l1IIY67AEw4v_Jr0_Jr4l82xGYIkIc2x26280x7IE14v26r1rM2 8IrcIa0xkI8VCY1x0267AKxVW5JVCq3wA2ocxC64kIII0Yj41l84x0c7CEw4AK67xGY2AK 021l84ACjcxK6xIIjxv20xvE14v26w1j6s0DM28EF7xvwVC0I7IYx2IY6xkF7I0E14v26r 4UJVWxJr1l84ACjcxK6I8E87Iv67AKxVW0oVCq3wA2z4x0Y4vEx4A2jsIEc7CjxVAFwI0_ GcCE3s1le2I262IYc4CY6c8Ij28IcVAaY2xG8wAqx4xG64xvF2IEw4CE5I8CrVC2j2WlYx 0E2Ix0cI8IcVAFwI0_Jr0_Jr4lYx0Ex4A2jsIE14v26r1j6r4UMcvjeVCFs4IE7xkEbVWU JVW8JwACjcxG0xvY0x0EwIxGrwACI402YVCY1x02628vn2kIc2xKxwCY1x0262kKe7AKxV WUtVW8ZwCF04k20xvY0x0EwIxGrwCFx2IqxVCFs4IE7xkEbVWUJVW8JwC20s026c02F40E 14v26r1j6r18MI8I3I0E7480Y4vE14v26r106r1rMI8E67AF67kF1VAFwI0_Jw0_GFylIx kGc2Ij64vIr41lIxAIcVC0I7IYx2IY67AKxVWUJVWUCwCI42IY6xIIjxv20xvEc7CjxVAF wI0_Cr0_Gr1UMIIF0xvE42xK8VAvwI8IcIk0rVWUJVWUCwCI42IY6I8E87Iv67AKxVWUJV W8JwCI42IY6I8E87Iv6xkF7I0E14v26r4j6r4UJbIYCTnIWIevJa73UjIFyTuYvjxUFF4i UUUUU X-CM-SenderInfo: xkrx3t3r6k3tpzhluzxrxghudrp/ X-Patchwork-Delegate: bpf@iogearbox.net From: Hou Tao Given that only bpf_dynptr is allowed in key_record, simply check whether map->key_record is not NULL to detect if bpf_dynptr is enabled in the map key. Signed-off-by: Hou Tao --- include/linux/bpf.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/include/linux/bpf.h b/include/linux/bpf.h index e25ff78f1fabf..737890e5c58b4 100644 --- a/include/linux/bpf.h +++ b/include/linux/bpf.h @@ -316,6 +316,11 @@ struct bpf_map { s64 __percpu *elem_count; }; +static inline bool bpf_map_has_dynptr_key(const struct bpf_map *map) +{ + return !!map->key_record; +} + static inline const char *btf_field_type_name(enum btf_field_type type) { switch (type) {