From: Steven Rostedt <rostedt@goodmis.org>
To: linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org
Cc: Masami Hiramatsu <mhiramat@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
Andrew Morton <akpm@linux-foundation.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
John Ogness <john.ogness@linutronix.de>,
Thomas Gleixner <tglx@kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Julia Lawall <julia.lawall@inria.fr>,
Yury Norov <yury.norov@gmail.com>,
linux-doc@vger.kernel.org, linux-kbuild@vger.kernel.org,
linuxppc-dev@lists.ozlabs.org, dri-devel@lists.freedesktop.org,
linux-stm32@st-md-mailman.stormreply.com,
linux-arm-kernel@lists.infradead.org, linux-rdma@vger.kernel.org,
linux-usb@vger.kernel.org, linux-ext4@vger.kernel.org,
linux-nfs@vger.kernel.org, kvm@vger.kernel.org,
intel-gfx@lists.freedesktop.org
Subject: Re: [PATCH 2/2] tracing: Add CONFIG_TRACE_PRINTK_DEBUGGING to clean up kernel.h
Date: Sun, 21 Jun 2026 05:47:21 -0400 [thread overview]
Message-ID: <20260621054721.7cde38f0@fedora> (raw)
In-Reply-To: <20260621093811.168514984@kernel.org>
On Sun, 21 Jun 2026 05:34:32 -0400
Steven Rostedt <rostedt@kernel.org> wrote:
> Instead of having trace_printk.h included in kernel.h, create a config
> TRACE_PRINTK_DEBUGGING that when set will update the CFLAGS in the
> Makefile to allow developers to add trace_printk() without the need to add
> the include for it. Having it included in the Makefile keeps it from being
> in the dependency chain and it will not waste extra CPU cycles for those
> building the kernel without using trace_printk.
Bah, I only tested with the config option enabled, and missed some
dependencies with it disabled.
For instance, rcu.h also uses ftrace_dump() so that too needs to go
into kernel.h. I also need to add a few more includes to trace_printk.h.
OK, I need to run this through all my tests to find where else I missed
adding the includes. But the idea should hopefully satisfy everyone.
-- Steve
next prev parent reply other threads:[~2026-06-21 9:47 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-21 9:34 [PATCH 0/2] tracing: Move trace_printk.h out of kernel.h Steven Rostedt
2026-06-21 9:34 ` [PATCH 1/2] tracing: Move non-trace_printk prototypes back to kernel.h Steven Rostedt
2026-06-21 13:08 ` Yury Norov
2026-06-21 9:34 ` [PATCH 2/2] tracing: Add CONFIG_TRACE_PRINTK_DEBUGGING to clean up kernel.h Steven Rostedt
2026-06-21 9:47 ` Steven Rostedt [this message]
2026-06-21 13:39 ` Yury Norov
2026-06-21 13:57 ` Yury Norov
2026-06-21 10:13 ` Thomas Gleixner
2026-06-21 10:38 ` Steven Rostedt
2026-06-21 12:55 ` David Laight
2026-06-21 13:03 ` Steven Rostedt
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