Hi,
I wondered why the container_of implementation is so complicated.
#define container_of(ptr, type, member) ({ \
const typeof( ((type *)0)->member ) *__mptr = (ptr); \
(type *)( (char *)__mptr - offsetof(type,member) );})
isn't the __mptr not unnecessary? Why not following version?
#define container_of(ptr, type, member) \
((type *)((char *)(ptr) - offsetof(type, member)))
--
Franz Schrober
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