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Message-ID: <87o7szoyij.fsf@jogness.linutronix.de>
Date:   Tue, 22 Nov 2022 15:33:16 +0106
From:   John Ogness <john.ogness@...utronix.de>
To:     Petr Mladek <pmladek@...e.com>
Cc:     "Paul E . McKenney" <paulmck@...nel.org>,
        Naresh Kamboju <naresh.kamboju@...aro.org>,
        open list <linux-kernel@...r.kernel.org>,
        Nathan Chancellor <nathan@...nel.org>,
        Sergey Senozhatsky <senozhatsky@...omium.org>
Subject: Re: next-20221122: tinyconfig: ppc n s390:
 kernel/printk/printk.c:95:1: error: type specifier missing, defaults to
 'int'; ISO C99 and later do not support implicit int
 [-Werror,-Wimplicit-int]

Hi Petr,

On 2022-11-22, Naresh Kamboju <naresh.kamboju@...aro.org> wrote:
> Today's Linux next 20221122 tag clang-15 tinyconfig builds fails on
> powerpc and s390 architectures.

The problem is that CONFIG_SRCU is not selected. This must be selected
by any modules that requires SRCU. However, printk.c is _always_ built
into the kernel (even if !CONFIG_PRINTK). The registration of consoles
and the console list (which uses SRCU) is _always_ built into the
kernel.

So should CONFIG_SRCU now always be active?

@paulmck: Do you have a problem with permanently activating CONFIG_SRCU?

John Ogness

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