/*
* Instruct the compiler to perform only a single access to a variable
* (prohibits merging and refetching). The compiler is also forbidden to reorder
- * successive instances of ACCESS_ONCE(), but only when the compiler is aware of
+ * successive instances of CMM_ACCESS_ONCE(), but only when the compiler is aware of
* particular ordering. Compiler ordering can be ensured, for example, by
- * putting two ACCESS_ONCE() in separate C statements.
+ * putting two CMM_ACCESS_ONCE() in separate C statements.
*
* This macro does absolutely -nothing- to prevent the CPU from reordering,
* merging, or refetching absolutely anything at any time. Its main intended
* use is to mediate communication between process-level code and irq/NMI
* handlers, all running on the same CPU.
*/
-#define ACCESS_ONCE(x) (*(volatile typeof(x) *)&(x))
+#define CMM_ACCESS_ONCE(x) (*(volatile typeof(x) *)&(x))
-#ifndef max
-#define max(a,b) ((a)>(b)?(a):(b))
+#ifndef caa_max
+#define caa_max(a,b) ((a)>(b)?(a):(b))
#endif
-#ifndef min
-#define min(a,b) ((a)<(b)?(a):(b))
+#ifndef caa_min
+#define caa_min(a,b) ((a)<(b)?(a):(b))
#endif
#if defined(__SIZEOF_LONG__)
-#define BITS_PER_LONG (__SIZEOF_LONG__ * 8)
+#define CAA_BITS_PER_LONG (__SIZEOF_LONG__ * 8)
#elif defined(_LP64)
-#define BITS_PER_LONG 64
+#define CAA_BITS_PER_LONG 64
#else
-#define BITS_PER_LONG 32
+#define CAA_BITS_PER_LONG 32
#endif
-#define container_of(ptr, type, member) \
+#define caa_container_of(ptr, type, member) \
({ \
const typeof(((type *)NULL)->member) * __ptr = (ptr); \
(type *)((char *)__ptr - offsetof(type, member)); \