From: Luis R. Rodriguez <lrodriguez@atheros.com>
Date: Mon, 11 Jan 2010 23:57:52 +0000 (-0800)
Subject: Add DMA_BIT_MASK() for older kernels
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=1fdde09ff7195dd421d831d4aa51c4413927269e;p=openwrt%2Fstaging%2Fblogic.git

Add DMA_BIT_MASK() for older kernels

Old kernels do not have this declared.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
---

diff --git a/include/linux/compat-2.6.24.h b/include/linux/compat-2.6.24.h
index f3eaec3a3fc3..ac9489f7fe12 100644
--- a/include/linux/compat-2.6.24.h
+++ b/include/linux/compat-2.6.24.h
@@ -18,6 +18,8 @@
 #define KEY_WLAN	238
 #define KEY_UWB		239
 
+#define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL<<(n))-1))
+
 /* Added on 2.6.24 in include/linux/types.h by Al viro on commit 142956af */
 typedef unsigned long               uintptr_t;