From 3f56fbc334bbba0780eda4b50b209b8afaa30daa Mon Sep 17 00:00:00 2001
From: Nicolas Thill <nico@openwrt.org>
Date: Wed, 24 Sep 2008 13:27:46 +0000
Subject: [PATCH] fix button-hotplug build on kernel versions where BIT_MASK is
 not defined (< 2.6.24)

SVN-Revision: 12682
---
 package/button-hotplug/src/button-hotplug.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/package/button-hotplug/src/button-hotplug.c b/package/button-hotplug/src/button-hotplug.c
index f76b9277fd..4bdf36435a 100644
--- a/package/button-hotplug/src/button-hotplug.c
+++ b/package/button-hotplug/src/button-hotplug.c
@@ -46,6 +46,10 @@
 
 #define BH_ERR(fmt, args...) printk(KERN_ERR "%s: " fmt, DRV_NAME, ##args )
 
+#ifndef BIT_MASK
+#define BIT_MASK(nr)            (1UL << ((nr) % BITS_PER_LONG))
+#endif
+
 struct bh_priv {
 	unsigned long		seen[BH_BTN_COUNT];
 	struct input_handle	handle;
-- 
2.30.2