Re: [PATCH 0/2] tracing: Move trace_printk.h out of kernel.h

Steven Rostedt <[email protected]> Mon, 22 Jun 2026 09:08:26 -0400
Newsgroups org.kernel.vger.linux-kbuild,org.freedesktop.lists.dri-devel,org.freedesktop.lists.intel-gfx,org.infradead.lists.linux-arm-kernel,org.kernel.vger.kvm,org.kernel.vger.linux-doc,org.kernel.vger.linux-ext4,org.kernel.vger.linux-kernel,org.kernel.vger.linux-nfs,org.kernel.vger.linux-rdma,org.kernel.vger.linux-trace-kernel,org.kernel.vger.linux-usb,org.ozlabs.lists.linuxppc-dev
Message-ID <20260622090826.20efadb3@fedora>
On Mon, 22 Jun 2026 10:05:13 +0200
"Christophe Leroy (CS GROUP)" <[email protected]> wrote:

> > There's been complaints about trace_printk() being defined in kernel.h as it
> > can increase the compilation time. As it is only used by some developers for
> > debugging purposes, it should not be in kernel.h causing lots of wasted CPU
> > cycles for those that do not ever care about it.  
> 
> Do we have a measurement of the increased compilation time ?

I believe Yury does.

-- Steve