From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 9FDE32EF2AB; Tue, 17 Jun 2025 15:53:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750175639; cv=none; b=qdCbz+4/x04SsvKiJcvX1KUj2sPITafHOhsHZVINzLTCPC1NEEyTqnlNHIblv5dWRYzyR3assFTcRY+4aKpCnxihYdMDDaAVcL3ox8/qLefQpqgrCE69MRzOj+iznbrWqnsbh3bW7GSTgd+442uTmbKQeNQ9Ls+BApOGFTjrz0w= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750175639; c=relaxed/simple; bh=Xzfu3MgCMkphIcR18fX8YWU6A8wrUx8DUT0/v5pc9iY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=MYZrm1k/dY8a+4GpOH7z8YzYtIJL5vROmVLVh379YpSYCNVyL9/u2XEk77jHS7o9C4zMwq3cg2KuZ9IpYDd+05L8rUS+6SUvFpC2b1C3EgzmPWABW+x91UU7kZplbtjkPFpjYyImDD0Z0QrmFnrlPJgmwHhJPxDbbraRTrflgHQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=fbAd4a2a; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="fbAd4a2a" Received: by smtp.kernel.org (Postfix) with ESMTPSA id F03A2C4CEF1; Tue, 17 Jun 2025 15:53:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1750175639; bh=Xzfu3MgCMkphIcR18fX8YWU6A8wrUx8DUT0/v5pc9iY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=fbAd4a2aVcfNUKByG5cQpZdP3sTv1/ZGx7NkGhiqTqQviooVDrlSMkCVlym6nos4/ dsKJnYvhSWOVKdcNL3w79cvGfqEu40gAPnHDZKTNPu5C7Avp7Ho7wn2lNdUJeeFU5K EnKUA5PK4P7m3c8bXmlpPSO8kpcSqBDLhzkWHnVI= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Tao Chen , Andrii Nakryiko , Jiri Olsa , Namhyung Kim , Sasha Levin Subject: [PATCH 6.12 137/512] libbpf: Remove sample_period init in perf_buffer Date: Tue, 17 Jun 2025 17:21:43 +0200 Message-ID: <20250617152425.151823346@linuxfoundation.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250617152419.512865572@linuxfoundation.org> References: <20250617152419.512865572@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.12-stable review patch. If anyone has any objections, please let me know. ------------------ From: Tao Chen [ Upstream commit 64821d25f05ac468d435e61669ae745ce5a633ea ] It seems that sample_period is not used in perf buffer. Actually, only wakeup_events are meaningful to enable events aggregation for wakeup notification. Remove sample_period setting code to avoid confusion. Fixes: fb84b8224655 ("libbpf: add perf buffer API") Signed-off-by: Tao Chen Signed-off-by: Andrii Nakryiko Acked-by: Jiri Olsa Acked-by: Namhyung Kim Link: https://lore.kernel.org/bpf/20250423163901.2983689-1-chen.dylane@linux.dev Signed-off-by: Sasha Levin --- 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 976fabd5d4dbc..c6eceae4d6ff6 100644 --- a/tools/lib/bpf/libbpf.c +++ b/tools/lib/bpf/libbpf.c @@ -13245,7 +13245,6 @@ struct perf_buffer *perf_buffer__new(int map_fd, size_t page_cnt, attr.config = PERF_COUNT_SW_BPF_OUTPUT; attr.type = PERF_TYPE_SOFTWARE; attr.sample_type = PERF_SAMPLE_RAW; - attr.sample_period = sample_period; attr.wakeup_events = sample_period; p.attr = &attr; -- 2.39.5