carl9170 firmware: fix gcc alignment warnings

warning: cast increases required alignment of target type.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index f6f144449a78d8c3ff687d879f340b51bfe2dc08..d331f3c1fe043e15889f579f6830b47f99e4fbf0 100644 (file)
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -78,7 +78,7 @@
 
 #define container_of(ptr, type, member) ({                     \
        const typeof(((type *)0)->member) * __mptr = (ptr);     \
-       (type *)((char *)__mptr - offsetof(type, member)); })
+       (type *)(((unsigned long)__mptr - offsetof(type, member))); })
 
 #define MAX_ERRNO      4095