From nobody Wed Feb 11 09:19:16 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 F096D2C11D1; Sun, 8 Feb 2026 03:24:06 +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=1770521047; cv=none; b=uYXq89k5cYFu5uRLDaO5ax+ExhiJAtK1Yn9ZbtnyROFOUYRGn8IvoD7BDoMnYSgJvG9wHNnFQvw6jpFeOx2JYrP8bNzm2gHU8DB4V10syHYcDt3GSWmhKBpM08bsXCuth3YidH7Vsito1i6B/J476/GcmTmua3bNb6ZYYUfgdxc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770521047; c=relaxed/simple; bh=ofZYtIuKZZzoDoktKHjlNYL9T3iTkdESp5qanyFNzIM=; h=Message-ID:Date:From:To:Cc:Subject:References:MIME-Version: Content-Type; b=d6Nd0fOIF9pi3CnK9IE1af2cN0dpLtzgQWzsXepfbaIOP6AlglyP5lbG8uMItK1ZFF9CO6bWL8NNnik+mEEP6kTCGygv1IDhAEagGHHC71voVdbhi6c3F32f7omfbg4pR6wBlan/I+6AdnXkwxvGY6zIe1qZZdvOPfjN+I2gPvU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=aE57g/Uv; 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="aE57g/Uv" Received: by smtp.kernel.org (Postfix) with ESMTPSA id CF069C4CEF7; Sun, 8 Feb 2026 03:24:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1770521046; bh=ofZYtIuKZZzoDoktKHjlNYL9T3iTkdESp5qanyFNzIM=; h=Date:From:To:Cc:Subject:References:From; b=aE57g/UvywN9NEb3lOuiaZAKvI5p/ut5r7rzvcNLabTLlKagL4t2QoNIynVKNCn+T uXBIgUFnU9HHb1Y6dvnus393za5kupzoTLN5KUlNxcCP/nz4v3/h358NpgCzUk/OyQ BMtOi5UHCDueCji9eDu//DBAjpCNDKLHFFGUWED4HWdUX6dmp3/EbZyFqlCSaSGBdq LZoF8RiPgydV27TbnOtuJODOCGQqzU5VYyq1PIjeCaZp9Ph5N2pmrm6IgtW4HD5DmI p9pDpHZTFDvTA3IKL1/q1Xf+vkpyquDGTE6dlArKkY9YQzZcRsxBH4jHTZOQyxz9Sw MvGoR+gOFaUrQ== Received: from rostedt by gandalf with local (Exim 4.99.1) (envelope-from ) id 1vovPm-0000000AOdC-1Feg; Sat, 07 Feb 2026 22:24:50 -0500 Message-ID: <20260208032450.144525891@kernel.org> User-Agent: quilt/0.68 Date: Sat, 07 Feb 2026 22:24:22 -0500 From: Steven Rostedt To: linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org Cc: Masami Hiramatsu , Mark Rutland , Mathieu Desnoyers , Andrew Morton Subject: [PATCH v2 05/10] tracing: Make printk_trace global for tracing system References: <20260208032417.262341179@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 printk_trace is used to determine which trace_array trace_printk() writes to. By making it a global variable among the tracing subsystem it will allow the trace_printk functions to be moved out of trace.c and still have direct access to that variable. Signed-off-by: Steven Rostedt (Google) --- kernel/trace/trace.c | 2 +- kernel/trace/trace.h | 2 ++ 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index a515b5241391..4a73822e2603 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -534,7 +534,7 @@ static struct trace_array global_trace =3D { .trace_flags =3D TRACE_DEFAULT_FLAGS, }; =20 -static struct trace_array *printk_trace =3D &global_trace; +struct trace_array *printk_trace =3D &global_trace; =20 /* List of trace_arrays interested in the top level trace_marker */ static LIST_HEAD(marker_copies); diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h index 605ee23f3262..921e4daa2825 100644 --- a/kernel/trace/trace.h +++ b/kernel/trace/trace.h @@ -482,6 +482,8 @@ extern bool trace_clock_in_ns(struct trace_array *tr); =20 extern unsigned long trace_adjust_address(struct trace_array *tr, unsigned= long addr); =20 +extern struct trace_array *printk_trace; + /* * The global tracer (top) should be the first trace array added, * but we check the flag anyway. --=20 2.51.0