From nobody Sat Feb 7 21:11:53 2026 Received: from out-182.mta1.migadu.com (out-182.mta1.migadu.com [95.215.58.182]) (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 305092F872 for ; Tue, 22 Apr 2025 09:17:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=95.215.58.182 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745313434; cv=none; b=ppfF6Bnbwg4Ey5+8IzvwnKd7K9DGmI+fnIfRVcE+pTUifxM9/FPAxJAGjsq9REZ72Rhwi/nCpGhD+55mAZILtFQhnBS/jPWcLvOaE+LeSobqjUfLgookcDNCv9WMKOfhGFWpWIAr7wmEj6rY5hP363QuaDCQxCWMr+685FGcP7s= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745313434; c=relaxed/simple; bh=2+Hg1j9TD+fECcZIFf3N8ABPxHsxjjhr6jbTTk9uqSQ=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=CjfWnGDaUGyyp6mjM0/VRTp5emAuVUAUpF1YcgZxAXHhsvCDBpGUVMsQkK9MN12YXg1lz/uFurpO/X9xSMImX0P9l/8KKVfhXMCbzhNDgh27XD6V5uWGQsw8P0+cSFFstpUn858suvh1DJtZWSaA7ZxG7NJlPNNqptJlAUrE2r8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=VyKHW3Tj; arc=none smtp.client-ip=95.215.58.182 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="VyKHW3Tj" X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1745313420; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=jk0ZV1PxWMKLH6tS63dm99aZAvjsLyQLeAI6jWMBXRI=; b=VyKHW3TjyVmLM1HOFsQmGUW393ChHWH8e/R2mxKxm6Ti7q9fu5+gZReh0gwdxtvMQy+dIM 8Hiv4O90SwBJHnf/FNfV3y+0KGqLrFEyipOSKiYkHpFmFWu7dk4nuWTQvYuN7ZiB3saQji Y94qKK80YdSTu3wzqZX+BvK2CZKBCw4= From: Tao Chen To: andrii@kernel.org, eddyz87@gmail.com, ast@kernel.org, daniel@iogearbox.net, martin.lau@linux.dev, song@kernel.org, yonghong.song@linux.dev, john.fastabend@gmail.com, kpsingh@kernel.org, sdf@fomichev.me, haoluo@google.com, jolsa@kernel.org Cc: bpf@vger.kernel.org, linux-kernel@vger.kernel.org, Tao Chen Subject: [RFC PATCH bpf-next] libbpf: remove sample_period init in perf_buffer Date: Tue, 22 Apr 2025 17:15:58 +0800 Message-Id: <20250422091558.2834622-1-chen.dylane@linux.dev> 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-Migadu-Flow: FLOW_OUT Content-Type: text/plain; charset="utf-8" It seems that sample_period no used in perf buffer, actually only wakeup_events valid about events aggregation for wakeup. So remove it to avoid causing confusion. Fixes: fb84b8224655 ("libbpf: add perf buffer API") Signed-off-by: Tao Chen Acked-by: Jiri Olsa Acked-by: Namhyung Kim --- tools/lib/bpf/libbpf.c | 1 - 1 file changed, 1 deletion(-) diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c index 194809da5172..1830e3c011a5 100644 --- a/tools/lib/bpf/libbpf.c +++ b/tools/lib/bpf/libbpf.c @@ -13306,7 +13306,6 @@ struct perf_buffer *perf_buffer__new(int map_fd, si= ze_t page_cnt, attr.config =3D PERF_COUNT_SW_BPF_OUTPUT; attr.type =3D PERF_TYPE_SOFTWARE; attr.sample_type =3D PERF_SAMPLE_RAW; - attr.sample_period =3D sample_period; attr.wakeup_events =3D sample_period; =20 p.attr =3D &attr; --=20 2.43.0