[PATCH] hostap: use offsetof() instead of own equivalent
The original macros result in gcc 4.2 warning about "cast from pointer to integer of different size" on 64-bit systems. Use of offsetof() on fields in substructures is widespread throughout the kernel code and should work whether offsetof() is defined using __compiler_offsetof() or a cast. Signed-off-by: Pavel Roskin <proski@gnu.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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