staging: brcm80211: replace string based variable storage by linked list

The storage of variables obtained from srom are now stored in a linked
list and lookup is done based on the enumerated identifier.
Reported-by: Johannes Berg <johannes@sipsolutions.net>
Reviewed-by: Roland Vossen <rvossen@broadcom.com>
Reviewed-by: Alwin Beukers <alwin@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/brcm80211/brcmsmac/aiutils.c

@@ -1210,6 +1210,7 @@ void ai_detach(struct si_pub *sih)
 		pcicore_deinit(sii->pch);
 	sii->pch = NULL;
 
+	srom_free_vars(sih);
 	kfree(sii);
 }
 

drivers/staging/brcm80211/brcmsmac/aiutils.h

@@ -266,6 +266,7 @@ struct si_info {
 
 	struct pcicore_info *pch; /* PCI/E core handle */
 
+	struct list_head var_list; /* list of srom variables */
 	char *vars;
 	uint varsz;
 

drivers/staging/brcm80211/brcmsmac/srom.h

@@ -22,6 +22,7 @@
 /* Prototypes */
 extern int srom_var_init(struct si_pub *sih, void __iomem *curmap, char **vars,
 			 uint *count);
+extern void srom_free_vars(struct si_pub *sih);
 
 extern int srom_read(struct si_pub *sih, uint bus, void *curmap,
 		     uint byteoff, uint nbytes, u16 *buf, bool check_crc);