linux-kernel - Re: [PATCH v4 0/6] scripts/sorttable: ftrace: Remove place holders for weak functions in available_filter

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Message-ID: <20250219102220.3b79ec5e@gandalf.local.home>
Date: Wed, 19 Feb 2025 10:22:20 -0500
From: Steven Rostedt <rostedt@...dmis.org>
To: Heiko Carstens <hca@...ux.ibm.com>
Cc: linux-kernel@...r.kernel.org, linux-trace-kernel@...r.kernel.org,
 linux-kbuild@...r.kernel.org, bpf <bpf@...r.kernel.org>,
 linux-arm-kernel@...ts.infradead.org, linux-s390@...r.kernel.org, Masami
 Hiramatsu <mhiramat@...nel.org>, Mark Rutland <mark.rutland@....com>,
 Mathieu Desnoyers <mathieu.desnoyers@...icios.com>, Andrew Morton
 <akpm@...ux-foundation.org>, Peter Zijlstra <peterz@...radead.org>, Linus
 Torvalds <torvalds@...ux-foundation.org>, Masahiro Yamada
 <masahiroy@...nel.org>, Nathan Chancellor <nathan@...nel.org>, Nicolas
 Schier <nicolas@...sle.eu>, Zheng Yejian <zhengyejian1@...wei.com>, Martin
 Kelly <martin.kelly@...wdstrike.com>, Christophe Leroy
 <christophe.leroy@...roup.eu>, Josh Poimboeuf <jpoimboe@...hat.com>,
 Catalin Marinas <catalin.marinas@....com>, Will Deacon <will@...nel.org>,
 Vasily Gorbik <gor@...ux.ibm.com>, Alexander Gordeev
 <agordeev@...ux.ibm.com>
Subject: Re: [PATCH v4 0/6] scripts/sorttable: ftrace: Remove place holders
 for weak functions in available_filter_functions

On Tue, 18 Feb 2025 15:58:36 +0100
Heiko Carstens <hca@...ux.ibm.com> wrote:

> Hi Steven,
> 
> > This series removes the place holder __ftrace_invalid_address___ from
> > the available_filter_functions file.
> > 
> > The rewriting of the sorttable.c code to make it more manageable
> > has already been merged:
> > 
> >   https://git.kernel.org/torvalds/c/c0e75905caf368e19aab585d20151500e750de89
> > 
> > Now this is only for getting rid of the ftrace invalid function place holders.  
> 
> Since you asked me to test this on s390: seems to work with
> HAVE_BUILDTIME_MCOUNT_SORT enabled; the ftrace selftests still
> work as before.

Great!

I'm guessing by just adding the support in s390 with what is upstream as
well as what is in my for-next would work? You can just add that for the
next merge window then.

Expect this code to be in linux-next later this week.

-- Steve