linux-kernel - Re: [PATCH 3/3] tracing: move tracing declarations from kernel.h to a dedicated header

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Message-ID: <20251201101658.0b5ab68e@pumpkin>
Date: Mon, 1 Dec 2025 10:16:58 +0000
From: david laight <david.laight@...box.com>
To: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc: Yury Norov <yury.norov@...il.com>, Steven Rostedt <rostedt@...dmis.org>,
 Masami Hiramatsu <mhiramat@...nel.org>, Mathieu Desnoyers
 <mathieu.desnoyers@...icios.com>, Randy Dunlap <rdunlap@...radead.org>,
 Ingo Molnar <mingo@...nel.org>, Jani Nikula <jani.nikula@...ux.intel.com>,
 Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>, Rodrigo Vivi
 <rodrigo.vivi@...el.com>, Tvrtko Ursulin <tursulin@...ulin.net>, Petr Pavlu
 <petr.pavlu@...e.com>, Daniel Gomez <da.gomez@...nel.org>, Greg
 Kroah-Hartman <gregkh@...uxfoundation.org>, "Rafael J. Wysocki"
 <rafael@...nel.org>, Danilo Krummrich <dakr@...nel.org>, Andrew Morton
 <akpm@...ux-foundation.org>, linux-kernel@...r.kernel.org,
 intel-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
 linux-modules@...r.kernel.org, linux-trace-kernel@...r.kernel.org
Subject: Re: [PATCH 3/3] tracing: move tracing declarations from kernel.h to
 a dedicated header

On Mon, 1 Dec 2025 04:50:42 +0200
Andy Shevchenko <andriy.shevchenko@...ux.intel.com> wrote:

> On Sun, Nov 30, 2025 at 11:09:25PM +0000, david laight wrote:
> > On Sun, 30 Nov 2025 21:44:46 +0200
> > Andy Shevchenko <andriy.shevchenko@...ux.intel.com> wrote:  
> 
> ...

> kernel.h elimination (in the form it exists right now) is very fruitful.
> However, you may help with the (say) ioctl.h or whatever you consider
> really fruitful, we all will thank you (no jokes).
> 

This is the first #include path for ioctl.h

In file included from ../include/asm-generic/ioctl.h:5,
                 from ./arch/x86/include/generated/uapi/asm/ioctl.h:1,
                 from ../include/uapi/linux/ioctl.h:5,
                 from ../include/uapi/linux/random.h:12,
                 from ../include/linux/random.h:10,
                 from ../include/linux/nodemask.h:94,
                 from ../include/linux/numa.h:6,
                 from ../include/linux/cpumask.h:17,
                 from ../arch/x86/include/asm/paravirt.h:21,
                 from ../arch/x86/include/asm/irqflags.h:102,
                 from ../include/linux/irqflags.h:18,
                 from ../include/linux/spinlock.h:59,
                 from ../include/linux/swait.h:7,
                 from ../include/linux/completion.h:12,
                 from ../include/linux/crypto.h:15,
                 from ../arch/x86/kernel/asm-offsets.c:9:

Get past that and sched.h => processor.h => cpuid/api.h also
gets you to paravirt.h.
I suspect a lot of headers get pulled in like that.

	David