linux-kernel - [PATCH 3/4] modpost add more symbols to whitelist pattern2

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Message-ID: <20061227115033.GC22606@in.ibm.com>
Date:	Wed, 27 Dec 2006 17:20:33 +0530
From:	Vivek Goyal <vgoyal@...ibm.com>
To:	linux kernel mailing list <linux-kernel@...r.kernel.org>
Cc:	Fastboot mailing list <fastboot@...ts.osdl.org>,
	Morton Andrew Morton <akpm@...l.org>, Andi Kleen <ak@....de>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Sam Ravnborg <sam@...nborg.org>
Subject: [PATCH 3/4] modpost add more symbols to whitelist pattern2



o MODPOST generates warning for i386 if compiled with CONFIG_RELOCATABLE=y
  and serial console support is enabled.

o Serial console setup function, serial8250_console_setup(), is a non __init
  function and it calls functions which are of type __init().
  (uart_parse_options() and uart_set_options()). Assuming, setup will
  be called during init time, changing serial8250_console_setup() to __init.
 
o Adding one more pattern to modpost whitelist. Console drivers might
  have *_console structures containing references to setup functions which
  can be of __init type. Don't generate warnings for those.

WARNING: vmlinux - Section mismatch: reference to .init.text: from .data between 'serial8250_console' (at offset 0xc05a33d8) and 'serial8250_reg'

Signed-off-by: Vivek Goyal <vgoyal@...ibm.com>
---

 drivers/serial/8250.c |    2 +-
 scripts/mod/modpost.c |    1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff -puN drivers/serial/8250.c~modpost-add-more-symbols-to-whitelist-pattern drivers/serial/8250.c
--- linux-2.6.20-rc2-reloc/drivers/serial/8250.c~modpost-add-more-symbols-to-whitelist-pattern	2006-12-27 16:25:00.000000000 +0530
+++ linux-2.6.20-rc2-reloc-root/drivers/serial/8250.c	2006-12-27 16:25:00.000000000 +0530
@@ -2296,7 +2296,7 @@ serial8250_console_write(struct console 
 	local_irq_restore(flags);
 }
 
-static int serial8250_console_setup(struct console *co, char *options)
+static int __init serial8250_console_setup(struct console *co, char *options)
 {
 	struct uart_port *port;
 	int baud = 9600;
diff -puN scripts/mod/modpost.c~modpost-add-more-symbols-to-whitelist-pattern scripts/mod/modpost.c
--- linux-2.6.20-rc2-reloc/scripts/mod/modpost.c~modpost-add-more-symbols-to-whitelist-pattern	2006-12-27 16:25:00.000000000 +0530
+++ linux-2.6.20-rc2-reloc-root/scripts/mod/modpost.c	2006-12-27 16:47:02.000000000 +0530
@@ -595,6 +595,7 @@ static int secref_whitelist(const char *
 		"_ops",
 		"_probe",
 		"_probe_one",
+		"_console",
 		NULL
 	};
 
_
-
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