From nobody Mon Jun 8 22:55:05 2026 Received: from mail.loongson.cn (mail.loongson.cn [114.242.206.163]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 293B539524B; Tue, 26 May 2026 06:39:47 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=114.242.206.163 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779777591; cv=none; b=Su1tYRj0bbm081deFuUcSclikO63Cm8me/sqtoGX8jGuFiCbEca45FJA2RiUpzVbqs9BUBUJaMK0rJUGPeUBxKIcvva48N/nfDjf4je07hM/03krgLp3WR7RWveRfVX7JoSZFT5a5h185vLmuRYV0KWvIx0+ZuO/J7YAAXjFvK4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779777591; c=relaxed/simple; bh=InmskBsL43DvgxQ4LZbni0cgwDfdI+KD/WkqFlumQJI=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=nDRa9LjYgwZGDxWdcQ8G49L9aJ0Nad+ud8UQOJxUZBchylwV5200UUF4n7ix1p7D5tMWO+7pf2ENqgPukIj0qelW86IL9Dnhz3se8z+pzyA/RwYWAjyJK4gFrpU6DN9Y+ugOebMQEGldOlx211X0NnrnfF9eA+ikhdOdtwoug80= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=loongson.cn; spf=pass smtp.mailfrom=loongson.cn; arc=none smtp.client-ip=114.242.206.163 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=loongson.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=loongson.cn Received: from loongson.cn (unknown [113.200.148.30]) by gateway (Coremail) with SMTP id _____8DxRektQBVqYUsNAA--.31804S3; Tue, 26 May 2026 14:39:42 +0800 (CST) Received: from linux.localdomain (unknown [113.200.148.30]) by front1 (Coremail) with SMTP id qMiowJAxGMEpQBVqHV2RAA--.64236S2; Tue, 26 May 2026 14:39:38 +0800 (CST) From: Tiezhu Yang To: Andrii Nakryiko , Eduard Zingerman Cc: loongarch@lists.linux.dev, bpf@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH bpf-next] libbpf: Add __NR_bpf definition for LoongArch Date: Tue, 26 May 2026 14:39:36 +0800 Message-ID: <20260526063936.16769-1-yangtiezhu@loongson.cn> X-Mailer: git-send-email 2.42.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: qMiowJAxGMEpQBVqHV2RAA--.64236S2 X-CM-SenderInfo: p1dqw3xlh2x3gn0dqz5rrqw2lrqou0/ X-Coremail-Antispam: 1Uk129KBj93XoW7KFy7Gw43Kw1DJFy7JF1kZwc_yoW8Ar4xpw 4UCa40kr15GFW5Jw10vFsYqw43Grn7tryjqayrCw4xCFs5J3WxJr1qvFZ8ZF1aqw4Fk342 kr1Yg3s8Zr18AwcCm3ZEXasCq-sJn29KB7ZKAUJUUUUr529EdanIXcx71UUUUU7KY7ZEXa sCq-sGcSsGvfJ3Ic02F40EFcxC0VAKzVAqx4xG6I80ebIjqfuFe4nvWSU5nxnvy29KBjDU 0xBIdaVrnRJUUU90b4IE77IF4wAFF20E14v26r1j6r4UM7CY07I20VC2zVCF04k26cxKx2 IYs7xG6rWj6s0DM7CIcVAFz4kK6r1Y6r17M28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48v e4kI8wA2z4x0Y4vE2Ix0cI8IcVAFwI0_Jr0_JF4l84ACjcxK6xIIjxv20xvEc7CjxVAFwI 0_Jr0_Gr1l84ACjcxK6I8E87Iv67AKxVWxJVW8Jr1l84ACjcxK6I8E87Iv6xkF7I0E14v2 6r4UJVWxJr1ln4kS14v26r1Y6r17M2AIxVAIcxkEcVAq07x20xvEncxIr21l57IF6xkI12 xvs2x26I8E6xACxx1l5I8CrVACY4xI64kE6c02F40Ex7xfMcIj6xIIjxv20xvE14v26r1Y 6r17McIj6I8E87Iv67AKxVWUJVW8JwAm72CE4IkC6x0Yz7v_Jr0_Gr1lF7xvr2IYc2Ij64 vIr41l42xK82IYc2Ij64vIr41l4I8I3I0E4IkC6x0Yz7v_Jr0_Gr1l4IxYO2xFxVAFwI0_ Jrv_JF1lx2IqxVAqx4xG67AKxVWUJVWUGwC20s026x8GjcxK67AKxVWUGVWUWwC2zVAF1V AY17CE14v26r126r1DMIIYrxkI7VAKI48JMIIF0xvE2Ix0cI8IcVAFwI0_Jr0_JF4lIxAI cVC0I7IYx2IY6xkF7I0E14v26r1j6r4UMIIF0xvE42xK8VAvwI8IcIk0rVWUJVWUCwCI42 IY6I8E87Iv67AKxVWUJVW8JwCI42IY6I8E87Iv6xkF7I0E14v26r1j6r4UYxBIdaVFxhVj vjDU0xZFpf9x07jepB-UUUUU= Content-Type: text/plain; charset="utf-8" LoongArch uses the generic syscall table, where __NR_bpf is defined as 280 in include/uapi/asm-generic/unistd.h. To align with other architectures, add the __NR_bpf definition for LoongArch to avoid a potential compilation failure: "error __NR_bpf not defined. libbpf does not support your arch." This is a follow up patch of: commit b0c47807d31d ("bpf: Add sparc support to tools and samples.") commit bad1926dd2f6 ("bpf, s390: fix build for libbpf and selftest suite") commit ca31ca8247e2 ("tools/bpf: fix perf build error with uClibc (seen o= n ARC)") commit e32cb12ff52a ("bpf, mips: Fix build errors about __NR_bpf undeclar= ed") Signed-off-by: Tiezhu Yang --- tools/build/feature/test-bpf.c | 2 ++ tools/lib/bpf/bpf.c | 2 ++ 2 files changed, 4 insertions(+) diff --git a/tools/build/feature/test-bpf.c b/tools/build/feature/test-bpf.c index e7a405f83af6..89d59674f39b 100644 --- a/tools/build/feature/test-bpf.c +++ b/tools/build/feature/test-bpf.c @@ -20,6 +20,8 @@ # define __NR_bpf 6319 # elif defined(__mips__) && defined(_ABI64) # define __NR_bpf 5315 +# elif defined(__loongarch__) +# define __NR_bpf 280 # else # error __NR_bpf not defined. libbpf does not support your arch. # endif diff --git a/tools/lib/bpf/bpf.c b/tools/lib/bpf/bpf.c index 3cd705802330..bc513aa8f404 100644 --- a/tools/lib/bpf/bpf.c +++ b/tools/lib/bpf/bpf.c @@ -59,6 +59,8 @@ # define __NR_bpf 6319 # elif defined(__mips__) && defined(_ABI64) # define __NR_bpf 5315 +# elif defined(__loongarch__) +# define __NR_bpf 280 # else # error __NR_bpf not defined. libbpf does not support your arch. # endif --=20 2.42.0