From nobody Wed Feb 11 05:41:05 2026 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 D73022DC322 for ; Mon, 9 Feb 2026 02:20:07 +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=1770603607; cv=none; b=i+2jbk1tVajQoCf/0m2L2LBaRGFUgQvx5M+KPn7dOQdxBFxR0qVFU3zDJ1RaBsPYykZSfZPP3SXLAszBrDMCRvNvlKutSYGqtoskOt8PmA4AhgL+Qi5w2FQBDpBq8oCT3rRbWheBBnemF7w++1iIlEu/g+djTYrKhMiQnJV+IbE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770603607; c=relaxed/simple; bh=pUTg/sEmFc2m5VRwG4r8m/Nn6E+oF36FMnyGMPKOPvs=; h=Message-ID:Date:From:To:Cc:Subject:References:MIME-Version: Content-Type; b=mJL4qL7iTkE/bws3vTatufEZvWU9vgqL4Ag2ZpllW8Yd+RvjK4lIDis+a/DIbWeZcjV6FwIaUSfjV/SxjM5Il5blgA4oeC8CLhXyKiXTVpFUXxLhc/y9duiW3Xwj7NfXpNPAHAEaocPufpfwPA6g394u4kszqAIG96F9O2knFcE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=YlT9ehuR; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="YlT9ehuR" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BAF0BC4CEF7; Mon, 9 Feb 2026 02:20:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1770603607; bh=pUTg/sEmFc2m5VRwG4r8m/Nn6E+oF36FMnyGMPKOPvs=; h=Date:From:To:Cc:Subject:References:From; b=YlT9ehuRmSdTz4UnCCylNg4LPRUhpwLQaFtmdgrMkFJRx45wcpUsv6yii1Z9Nc7zx bHOof5p4fMSHcbhh/Y5+/bJ4fYh6y08L6QytsGZsO9TfKkTWsc4OGpOYeIQQBEo03t T0GoXb0wTJtTFfnpsyWLgZS1bgfARvm31iEL7yfBHhE/CWyt795SYsDlqUJU6WCFzx FoHuLhG7CLwnQwHJFL8CQ5YRGRSggCVV6a6rZGvVhHE9DLTN9C027MR5JErHkCmRLt rAyEk4CFkArtGLjA/3irafiuBSNZZvKFqabatugB9hMjYGjMpYwK/1QKG9QKlx43Sd r3qYw0KoWeaIQ== Received: from rostedt by gandalf with local (Exim 4.99.1) (envelope-from ) id 1vpGtS-0000000Aa6M-1KmF; Sun, 08 Feb 2026 21:20:54 -0500 Message-ID: <20260209022054.178002010@kernel.org> User-Agent: quilt/0.68 Date: Sun, 08 Feb 2026 21:20:39 -0500 From: Steven Rostedt To: linux-kernel@vger.kernel.org Cc: Masami Hiramatsu , Mark Rutland , Mathieu Desnoyers , Andrew Morton Subject: [for-next][PATCH 13/20] tracing: Make tracing_update_buffers() take NULL for global_trace References: <20260209022026.627895421@kernel.org> 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 Content-Type: text/plain; charset="utf-8" From: Steven Rostedt The trace.c file has become a dumping ground for all tracing code and has become quite large. In order to move the trace_printk functions out of it these functions can not access global_trace directly, as that is something that needs to stay static in trace.c. Have tracing_update_buffers() take NULL for its trace_array to denote it should work on the global_trace top level trace_array allows that function to be used outside of trace.c and still update the global_trace trace_array. Cc: Masami Hiramatsu Cc: Mark Rutland Cc: Mathieu Desnoyers Cc: Andrew Morton Link: https://patch.msgid.link/20260208032450.318864210@kernel.org Signed-off-by: Steven Rostedt (Google) --- kernel/trace/trace.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 4a73822e2603..601b6f622391 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -3234,7 +3234,7 @@ void trace_printk_init_buffers(void) pr_warn("**********************************************************\n"); =20 /* Expand the buffers to set size */ - if (tracing_update_buffers(&global_trace) < 0) + if (tracing_update_buffers(NULL) < 0) pr_err("Failed to expand tracing buffers for trace_printk() calls\n"); else buffers_allocated =3D 1; @@ -6186,6 +6186,9 @@ int tracing_update_buffers(struct trace_array *tr) { int ret =3D 0; =20 + if (!tr) + tr =3D &global_trace; + guard(mutex)(&trace_types_lock); =20 update_last_data(tr); --=20 2.51.0