static inline u32 frame_hdr_len(struct ieee80211_hdr *hdr) 
static inline u32 frame_hdr_len(struct ieee80211_hdr_4addr *hdr) 
static inline u32 frame_hdr_len(struct ieee80211_hdr *hdr){	u32 retval;	u16 fc;	retval = sizeof(struct ieee80211_hdr);	fc = le16_to_cpu(hdr->frame_ctl);	/*	 * Function     ToDS    FromDS	 * IBSS         0       0	 * To AP        1       0	 * From AP      0       1	 * WDS (bridge) 1       1	 *	 * Only WDS frames use Address4 among them. --YZ	 */	if (!(fc & IEEE80211_FCTL_TODS) || !(fc & IEEE80211_FCTL_FROMDS))		retval -= ETH_ALEN;	return retval;}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/0dacca1f0a53938dd7d5ba35c692bd1a3356d504/ipw2200.h/clean/drivers/net/wireless/ipw2200.h