提交 c6710e50 编写于 作者: P Pavel Roskin 提交者: Jeff Garzik

[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: NPavel Roskin <proski@gnu.org>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
上级 876c9d3a
......@@ -368,9 +368,9 @@ enum {
#define PRISM2_HOSTAPD_MAX_BUF_SIZE 1024
#define PRISM2_HOSTAPD_RID_HDR_LEN \
((int) (&((struct prism2_hostapd_param *) 0)->u.rid.data))
offsetof(struct prism2_hostapd_param, u.rid.data)
#define PRISM2_HOSTAPD_GENERIC_ELEMENT_HDR_LEN \
((int) (&((struct prism2_hostapd_param *) 0)->u.generic_elem.data))
offsetof(struct prism2_hostapd_param, u.generic_elem.data)
/* Maximum length for algorithm names (-1 for nul termination) used in ioctl()
*/
......
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