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From: Stephen Rothwell <sfr@canb.auug.org.au>
To: Denis Efremov <efremov@linux.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>,
	Michal Marek <michal.lkml@markovi.net>,
	Emil Velikov <emil.l.velikov@gmail.com>,
	linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3] modpost: check for static EXPORT_SYMBOL* functions
Date: Tue, 30 Jul 2019 08:26:18 +1000	[thread overview]
Message-ID: <20190730082618.5bb5edf3@canb.auug.org.au> (raw)
In-Reply-To: <20190729141801.31333-1-efremov@linux.com>

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Hi Denis,

On Mon, 29 Jul 2019 17:18:01 +0300 Denis Efremov <efremov@linux.com> wrote:
>
> This patch adds a check to warn about static EXPORT_SYMBOL* functions
> during the modpost. In most of the cases, a static symbol marked for
> exporting is an odd combination that should be fixed either by deleting
> the exporting mark or by removing the static attribute and adding the
> appropriate declaration to headers.

OK, this is now in linux-next and I am getting what look like false
positives :-(

My powerpc builds produce these:

WARNING: "ahci_em_messages" [vmlinux] is the static EXPORT_SYMBOL_GPL
WARNING: "ftrace_set_clr_event" [vmlinux] is the static EXPORT_SYMBOL_GPL
WARNING: "empty_zero_page" [vmlinux] is the static EXPORT_SYMBOL
WARNING: "jiffies" [vmlinux] is the static EXPORT_SYMBOL

empty_zero_page (at least) is not static.  It is defined in assembler ...

jiffies is defined in arch/powerpc/kernel/vmlinux.lds.S as an alias for
(part of) jiffies_64 which is not static (defined in kernel/time/timer.c).

The other 2 were OK.
-- 
Cheers,
Stephen Rothwell

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  reply	other threads:[~2019-07-29 22:26 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-14 15:28 [RFC PATCH] modpost: check for static EXPORT_SYMBOL* functions Denis Efremov
2019-07-15 14:43 ` Emil Velikov
2019-07-27 12:55 ` Masahiro Yamada
2019-07-27 19:13   ` Denis Efremov
2019-07-28  2:00     ` Masahiro Yamada
2019-07-28 10:09 ` [PATCH] " Denis Efremov
2019-07-29  3:29   ` Masahiro Yamada
2019-07-29  9:51     ` Denis Efremov
2019-07-29  5:13   ` Stephen Rothwell
2019-07-29  9:16     ` Denis Efremov
2019-07-29  9:32       ` Masahiro Yamada
2019-07-29 12:40       ` Stephen Rothwell
2019-07-29 12:52         ` Denis Efremov
2019-07-29 13:07           ` Stephen Rothwell
2019-07-29  9:22 ` [PATCH v2] " Denis Efremov
2019-07-29 12:20   ` Stephen Rothwell
2019-07-29 12:47     ` Denis Efremov
2019-07-29 14:18 ` [PATCH v3] " Denis Efremov
2019-07-29 22:26   ` Stephen Rothwell [this message]
2019-07-30  6:59     ` Denis Efremov
2019-07-30 16:29       ` Masahiro Yamada
2019-07-30 16:44         ` Denis Efremov
2019-07-30 17:21           ` Masahiro Yamada
2019-07-30 18:11 ` [PATCH v4] " Denis Efremov
2019-07-30 18:15   ` Denis Efremov
2019-07-31  8:54   ` Masahiro Yamada
2019-08-01  2:20     ` Masahiro Yamada
2019-08-01  6:17       ` Denis Efremov
2019-08-01  6:06 ` [PATCH v5] " Denis Efremov
2019-08-07 15:12   ` Masahiro Yamada
2019-08-13 16:07     ` Masahiro Yamada
2019-08-13 21:11       ` Denis Efremov

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