From: Lucas De Marchi <lucas.demarchi@profusion.mobi>
Date: Mon, 21 May 2012 23:22:12 +0000 (-0300)
Subject: libkmod-util: copy macros for unaligned access from BlueZ
X-Git-Tag: v9~39
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=a6b67f90c3fd4a2d2880649bea7e95df0f35bb08;p=thirdparty%2Fkmod.git

libkmod-util: copy macros for unaligned access from BlueZ
---

diff --git a/libkmod/libkmod-util.h b/libkmod/libkmod-util.h
index 163b1873..ffe7c43e 100644
--- a/libkmod/libkmod-util.h
+++ b/libkmod/libkmod-util.h
@@ -25,4 +25,20 @@ char *modname_normalize(const char *modname, char buf[PATH_MAX], size_t *len) __
 char *path_to_modname(const char *path, char buf[PATH_MAX], size_t *len) __attribute__((nonnull(2)));
 unsigned long long stat_mstamp(const struct stat *st);
 
+#define get_unaligned(ptr)			\
+({						\
+	struct __attribute__((packed)) {	\
+		typeof(*(ptr)) __v;		\
+	} *__p = (typeof(__p)) (ptr);		\
+	__p->__v;				\
+})
+
+#define bt_put_unaligned(val, ptr)		\
+do {						\
+	struct __attribute__((packed)) {	\
+		typeof(*(ptr)) __v;		\
+	} *__p = (typeof(__p)) (ptr);		\
+	__p->__v = (val);			\
+} while(0)
+
 #endif