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 D9A762EB5C0; Tue, 17 Jun 2025 16:12:06 +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=1750176727; cv=none; b=i+0/XcaP1UH1/7PiKhom8Ab6Z4iy1WiHOlb3BI0xEEDGTYZ/CU674E9WMcPr0NUo4ehEx9lNqeq5bCMYKVSYs2cykG+pQMZ79zD+o5jF5pGdkQ3A2qGnVpz/PbRMVeJRJRfZvc9SBV56vLoZNfiMq4TqCpSiy1IVFXUKmaqemkU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750176727; c=relaxed/simple; bh=XyZqTJGd1TnqVIcwJCOFb9YIC86xypVDD4rtbhQp9S4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=g8EfC/qK6pj0zIx2xIrHj7x3r1oFyGbB5z3HiAQhpEtxeKdzwk/GhfJ0D2LaQRG4MDFGx/Ch/PYostiClTF7jWKAj9jDhFkh5V1eWSM0BHhT3qTOq/WklKqX8GNsOTNlJrmsGhbogMU/5Jd+BgNFOzmaKZwhm9suo45JQIsuMTY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=0L0rz3ox; 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="0L0rz3ox" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1A341C4CEE3; Tue, 17 Jun 2025 16:12:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1750176726; bh=XyZqTJGd1TnqVIcwJCOFb9YIC86xypVDD4rtbhQp9S4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=0L0rz3oxDKPB7ph9ViKVfNn4hsumxaqPcaSSwJ0IiEWdGHLDA7ck43R9VsFeX2t8K CfQX+rByuZSHnorhoTg8Ojboa+VqWhR5Tlhc9cLVIXzwFMmj/iKX6iAuC/gHNYHvhp Tu3BgCr0syR0sk5mdPMpjw93FYTAnwfXl7Qc8EBY= 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 6.15 220/780] libbpf: Remove sample_period init in perf_buffer Date: Tue, 17 Jun 2025 17:18:48 +0200 Message-ID: <20250617152500.419276128@linuxfoundation.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250617152451.485330293@linuxfoundation.org> References: <20250617152451.485330293@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.15-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 087bb8daa46b5..2bc0e3bfdd491 100644 --- a/tools/lib/bpf/libbpf.c +++ b/tools/lib/bpf/libbpf.c @@ -13351,7 +13351,6 @@ 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