linux-kernel - Re: [PATCH v3 3/3] bootconfig: Free xbc_data in xbc_destroy

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Message-ID: <20210915201709.1406426a@oasis.local.home>
Date:   Wed, 15 Sep 2021 20:17:09 -0400
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Masami Hiramatsu <mhiramat@...nel.org>
Cc:     Linus Torvalds <torvalds@...ux-foundation.org>,
        Mike Rapoport <rppt@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Ingo Molnar <mingo@...nel.org>, Linux-MM <linux-mm@...ck.org>,
        Vlastimil Babka <vbabka@...e.cz>
Subject: Re: [PATCH v3 3/3] bootconfig: Free xbc_data in xbc_destroy_all()

On Thu, 16 Sep 2021 09:05:03 +0900
Masami Hiramatsu <mhiramat@...nel.org> wrote:

> Ah, it is my policy that the error or information message is shown
> by caller (since caller can also ignore that, e.g. passing the
> testing data), not from the library code.
> I learned that from perf-probe and ftrace, sometimes the library
> code reused in unexpected way. So I decided to decouple the
> generating error message and showing it.

OK, then we can just pass the number of nodes allocated via a pointer
to an integer.

Thanks!

-- Steve