[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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@ -368,9 +368,9 @@ enum {
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#define PRISM2_HOSTAPD_MAX_BUF_SIZE 1024
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#define PRISM2_HOSTAPD_RID_HDR_LEN \
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((int) (&((struct prism2_hostapd_param *) 0)->u.rid.data))
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offsetof(struct prism2_hostapd_param, u.rid.data)
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#define PRISM2_HOSTAPD_GENERIC_ELEMENT_HDR_LEN \
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((int) (&((struct prism2_hostapd_param *) 0)->u.generic_elem.data))
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offsetof(struct prism2_hostapd_param, u.generic_elem.data)
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/* Maximum length for algorithm names (-1 for nul termination) used in ioctl()
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*/
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