linux-kernel - Re: [PATCH v4 02/10] user_events: Add minimal support for trace

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Message-ID: <20211108165916.GA1607@kbox>
Date:   Mon, 8 Nov 2021 08:59:16 -0800
From:   Beau Belgrave <beaub@...ux.microsoft.com>
To:     Masami Hiramatsu <mhiramat@...nel.org>
Cc:     kernel test robot <lkp@...el.com>, rostedt@...dmis.org,
        kbuild-all@...ts.01.org, linux-trace-devel@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 02/10] user_events: Add minimal support for
 trace_event into ftrace

On Mon, Nov 08, 2021 at 11:32:25AM +0900, Masami Hiramatsu wrote:
> On Fri, 5 Nov 2021 05:34:31 +0800
> kernel test robot <lkp@...el.com> wrote:
> 
> > Hi Beau,
> > 
> > Thank you for the patch! Yet something to improve:
> > 
> > [auto build test ERROR on rostedt-trace/for-next]
> > [also build test ERROR on shuah-kselftest/next linux/master linus/master v5.15 next-20211104]
> > [If your patch is applied to the wrong git tree, kindly drop us a note.
> > And when submitting patch, we suggest to use '--base' as documented in
> > https://git-scm.com/docs/git-format-patch]
> > 
> > url:    https://github.com/0day-ci/linux/commits/Beau-Belgrave/user_events-Enable-user-processes-to-create-and-write-to-trace-events/20211105-010650
> > base:   https://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace.git for-next
> > config: powerpc-allmodconfig (attached as .config)
> > compiler: powerpc-linux-gcc (GCC) 11.2.0
> > reproduce (this is a W=1 build):
> >         wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
> >         chmod +x ~/bin/make.cross
> >         # https://github.com/0day-ci/linux/commit/da0961ad45aa1192b47b8a80de6b17437434ae4a
> >         git remote add linux-review https://github.com/0day-ci/linux
> >         git fetch --no-tags linux-review Beau-Belgrave/user_events-Enable-user-processes-to-create-and-write-to-trace-events/20211105-010650
> >         git checkout da0961ad45aa1192b47b8a80de6b17437434ae4a
> >         # save the attached .config to linux build tree
> >         mkdir build_dir
> >         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=powerpc SHELL=/bin/bash kernel/trace/
> > 
> > If you fix the issue, kindly add following tag as appropriate
> > Reported-by: kernel test robot <lkp@...el.com>
> > 
> > All errors (new ones prefixed by >>):
> > 
> >    kernel/trace/trace_events_user.c: In function 'user_event_parse':
> > >> kernel/trace/trace_events_user.c:665:9: error: too few arguments to function 'dyn_event_add'
> >      665 |         dyn_event_add(&user->devent);
> >          |         ^~~~~~~~~~~~~
> >    In file included from kernel/trace/trace_events_user.c:23:
> >    kernel/trace/trace_dynevent.h:79:19: note: declared here
> >       79 | static inline int dyn_event_add(struct dyn_event *ev,
> >          |                   ^~~~~~~~~~~~~
> 
> You need to pass &user->call too :)
> 
> Thank you,
> 
> -- 
> Masami Hiramatsu <mhiramat@...nel.org>

:)

Yep, these so far have been based on perf/core branch of tip, I've moved the
next iteration over to for-next branch off of linux-trace to ensure alignment.

Thanks,
-Beau