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@xxxxxxx> --- drivers/net/wireless/hostap/hostap_common.h | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/hostap/hostap_common.h b/drivers/net/wireless/hostap/hostap_common.h index 0162400..b31e6a0 100644 --- a/drivers/net/wireless/hostap/hostap_common.h +++ b/drivers/net/wireless/hostap/hostap_common.h @@ -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() */ - To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html