linux-kernel - [PATCH] HID: avoid sparse warning in HID_COMPAT_LOAD

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Date:	Tue, 16 Dec 2008 13:31:31 +0100
From:	Hannes Eder <hannes@...neseder.net>
To:	Jiri Kosina <jkosina@...e.cz>
Cc:	kernel-janitors@...r.kernel.org
Subject: [PATCH] HID: avoid sparse warning in HID_COMPAT_LOAD_DRIVER

Impact: include a prototype for the exported function in the macro

Fix about 20 of this warnings:

  drivers/hid/hid-a4tech.c:162:1: warning: symbol 'hid_compat_a4tech' was not declared. Should it be static?

Signed-off-by: Hannes Eder <hannes@...neseder.net>
---
 include/linux/hid.h |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/include/linux/hid.h b/include/linux/hid.h
index 215035b..81aa84d 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -793,6 +793,8 @@ dbg_hid(const char *fmt, ...)
 
 #ifdef CONFIG_HID_COMPAT
 #define HID_COMPAT_LOAD_DRIVER(name)	\
+/* prototype to avoid sparse warning */	\
+extern void hid_compat_##name(void);	\
 void hid_compat_##name(void) { }	\
 EXPORT_SYMBOL(hid_compat_##name)
 #else
-- 
1.5.6.3

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