diff --git a/drivers/staging/brcm80211/include/bcmutils.h b/drivers/staging/brcm80211/include/bcmutils.h
index 321071b..f17dbb1 100644
--- a/drivers/staging/brcm80211/include/bcmutils.h
+++ b/drivers/staging/brcm80211/include/bcmutils.h
@@ -21,33 +21,6 @@
 extern "C" {
 #endif
 
-/* ctype replacement */
-#define _BCM_U	0x01		/* upper */
-#define _BCM_L	0x02		/* lower */
-#define _BCM_D	0x04		/* digit */
-#define _BCM_C	0x08		/* cntrl */
-#define _BCM_P	0x10		/* punct */
-#define _BCM_S	0x20		/* white space (space/lf/tab) */
-#define _BCM_X	0x40		/* hex digit */
-#define _BCM_SP	0x80		/* hard space (0x20) */
-
-	extern const unsigned char bcm_ctype[];
-#define bcm_ismask(x)	(bcm_ctype[(int)(unsigned char)(x)])
-
-#define bcm_isalnum(c)	((bcm_ismask(c)&(_BCM_U|_BCM_L|_BCM_D)) != 0)
-#define bcm_isalpha(c)	((bcm_ismask(c)&(_BCM_U|_BCM_L)) != 0)
-#define bcm_iscntrl(c)	((bcm_ismask(c)&(_BCM_C)) != 0)
-#define bcm_isdigit(c)	((bcm_ismask(c)&(_BCM_D)) != 0)
-#define bcm_isgraph(c)	((bcm_ismask(c)&(_BCM_P|_BCM_U|_BCM_L|_BCM_D)) != 0)
-#define bcm_islower(c)	((bcm_ismask(c)&(_BCM_L)) != 0)
-#define bcm_isprint(c)	((bcm_ismask(c)&(_BCM_P|_BCM_U|_BCM_L|_BCM_D|_BCM_SP)) != 0)
-#define bcm_ispunct(c)	((bcm_ismask(c)&(_BCM_P)) != 0)
-#define bcm_isspace(c)	((bcm_ismask(c)&(_BCM_S)) != 0)
-#define bcm_isupper(c)	((bcm_ismask(c)&(_BCM_U)) != 0)
-#define bcm_isxdigit(c)	((bcm_ismask(c)&(_BCM_D|_BCM_X)) != 0)
-#define bcm_tolower(c)	(bcm_isupper((c)) ? ((c) + 'a' - 'A') : (c))
-#define bcm_toupper(c)	(bcm_islower((c)) ? ((c) + 'A' - 'a') : (c))
-
 /* Buffer structure for collecting string-formatted data
 * using bcm_bprintf() API.
 * Use bcm_binit() to initialize before use
diff --git a/drivers/staging/brcm80211/sys/wlc_mac80211.c b/drivers/staging/brcm80211/sys/wlc_mac80211.c
index 27ddc23..db9a7c2 100644
--- a/drivers/staging/brcm80211/sys/wlc_mac80211.c
+++ b/drivers/staging/brcm80211/sys/wlc_mac80211.c
@@ -75,6 +75,8 @@
 #define W_REG(osh, r, v) RPC_WRITE_REG(osh, r, v)
 #endif
 
+#include <linux/ctype.h>
+
 /*
  * buffer length needed for wlc_format_ssid
  * 32 SSID chars, max of 4 chars for each SSID char "\xFF", plus NULL.
@@ -5486,7 +5488,7 @@ int wlc_format_ssid(char *buf, const uchar ssid[], uint ssid_len)
 		if (c == '\\') {
 			*p++ = '\\';
 			*p++ = '\\';
-		} else if (bcm_isprint((uchar) c)) {
+		} else if (isprint((uchar) c)) {
 			*p++ = (char)c;
 		} else {
 			p += snprintf(p, (endp - p), "\\x%02X", c);
diff --git a/drivers/staging/brcm80211/util/bcmutils.c b/drivers/staging/brcm80211/util/bcmutils.c
index 9505064..3f521e9 100644
--- a/drivers/staging/brcm80211/util/bcmutils.c
+++ b/drivers/staging/brcm80211/util/bcmutils.c
@@ -27,6 +27,8 @@
 #include <proto/802.1d.h>
 #include <proto/802.11.h>
 
+#include <linux/ctype.h>
+
 #ifdef WLC_LOW
 /* nvram vars cache */
 static char *nvram_vars;
@@ -490,52 +492,6 @@ void *BCMFASTPATH pktq_mdeq(struct pktq *pq, uint prec_bmp, int *prec_out)
 	return p;
 }
 
-const unsigned char bcm_ctype[] = {
-
-	_BCM_C, _BCM_C, _BCM_C, _BCM_C, _BCM_C, _BCM_C, _BCM_C, _BCM_C,	/* 0-7 */
-	_BCM_C, _BCM_C | _BCM_S, _BCM_C | _BCM_S, _BCM_C | _BCM_S,
-	    _BCM_C | _BCM_S, _BCM_C | _BCM_S, _BCM_C,
-	_BCM_C,			/* 8-15 */
-	_BCM_C, _BCM_C, _BCM_C, _BCM_C, _BCM_C, _BCM_C, _BCM_C, _BCM_C,	/* 16-23 */
-	_BCM_C, _BCM_C, _BCM_C, _BCM_C, _BCM_C, _BCM_C, _BCM_C, _BCM_C,	/* 24-31 */
-	_BCM_S | _BCM_SP, _BCM_P, _BCM_P, _BCM_P, _BCM_P, _BCM_P, _BCM_P, _BCM_P,	/* 32-39 */
-	_BCM_P, _BCM_P, _BCM_P, _BCM_P, _BCM_P, _BCM_P, _BCM_P, _BCM_P,	/* 40-47 */
-	_BCM_D, _BCM_D, _BCM_D, _BCM_D, _BCM_D, _BCM_D, _BCM_D, _BCM_D,	/* 48-55 */
-	_BCM_D, _BCM_D, _BCM_P, _BCM_P, _BCM_P, _BCM_P, _BCM_P, _BCM_P,	/* 56-63 */
-	_BCM_P, _BCM_U | _BCM_X, _BCM_U | _BCM_X, _BCM_U | _BCM_X,
-	    _BCM_U | _BCM_X, _BCM_U | _BCM_X,
-	_BCM_U | _BCM_X, _BCM_U,	/* 64-71 */
-	_BCM_U, _BCM_U, _BCM_U, _BCM_U, _BCM_U, _BCM_U, _BCM_U, _BCM_U,	/* 72-79 */
-	_BCM_U, _BCM_U, _BCM_U, _BCM_U, _BCM_U, _BCM_U, _BCM_U, _BCM_U,	/* 80-87 */
-	_BCM_U, _BCM_U, _BCM_U, _BCM_P, _BCM_P, _BCM_P, _BCM_P, _BCM_P,	/* 88-95 */
-	_BCM_P, _BCM_L | _BCM_X, _BCM_L | _BCM_X, _BCM_L | _BCM_X,
-	    _BCM_L | _BCM_X, _BCM_L | _BCM_X,
-	_BCM_L | _BCM_X, _BCM_L,	/* 96-103 */
-	_BCM_L, _BCM_L, _BCM_L, _BCM_L, _BCM_L, _BCM_L, _BCM_L, _BCM_L,	/* 104-111 */
-	_BCM_L, _BCM_L, _BCM_L, _BCM_L, _BCM_L, _BCM_L, _BCM_L, _BCM_L,	/* 112-119 */
-	_BCM_L, _BCM_L, _BCM_L, _BCM_P, _BCM_P, _BCM_P, _BCM_P, _BCM_C,	/* 120-127 */
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,	/* 128-143 */
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,	/* 144-159 */
-	_BCM_S | _BCM_SP, _BCM_P, _BCM_P, _BCM_P, _BCM_P, _BCM_P, _BCM_P,
-	    _BCM_P, _BCM_P, _BCM_P,
-	_BCM_P, _BCM_P, _BCM_P, _BCM_P, _BCM_P, _BCM_P,	/* 160-175 */
-	_BCM_P, _BCM_P, _BCM_P, _BCM_P, _BCM_P, _BCM_P, _BCM_P, _BCM_P, _BCM_P,
-	    _BCM_P, _BCM_P,
-	_BCM_P, _BCM_P, _BCM_P, _BCM_P, _BCM_P,	/* 176-191 */
-	_BCM_U, _BCM_U, _BCM_U, _BCM_U, _BCM_U, _BCM_U, _BCM_U, _BCM_U, _BCM_U,
-	    _BCM_U, _BCM_U,
-	_BCM_U, _BCM_U, _BCM_U, _BCM_U, _BCM_U,	/* 192-207 */
-	_BCM_U, _BCM_U, _BCM_U, _BCM_U, _BCM_U, _BCM_U, _BCM_U, _BCM_P, _BCM_U,
-	    _BCM_U, _BCM_U,
-	_BCM_U, _BCM_U, _BCM_U, _BCM_U, _BCM_L,	/* 208-223 */
-	_BCM_L, _BCM_L, _BCM_L, _BCM_L, _BCM_L, _BCM_L, _BCM_L, _BCM_L, _BCM_L,
-	    _BCM_L, _BCM_L,
-	_BCM_L, _BCM_L, _BCM_L, _BCM_L, _BCM_L,	/* 224-239 */
-	_BCM_L, _BCM_L, _BCM_L, _BCM_L, _BCM_L, _BCM_L, _BCM_L, _BCM_P, _BCM_L,
-	    _BCM_L, _BCM_L,
-	_BCM_L, _BCM_L, _BCM_L, _BCM_L, _BCM_L	/* 240-255 */
-};
-
 ulong BCMROMFN(bcm_strtoul) (char *cp, char **endp, uint base)
 {
 	ulong result, last_result = 0, value;
@@ -543,7 +499,7 @@ ulong BCMROMFN(bcm_strtoul) (char *cp, char **endp, uint base)
 
 	minus = FALSE;
 
-	while (bcm_isspace(*cp))
+	while (isspace(*cp))
 		cp++;
 
 	if (cp[0] == '+')
@@ -571,9 +527,9 @@ ulong BCMROMFN(bcm_strtoul) (char *cp, char **endp, uint base)
 
 	result = 0;
 
-	while (bcm_isxdigit(*cp) &&
+	while (isxdigit(*cp) &&
 	       (value =
-		bcm_isdigit(*cp) ? *cp - '0' : bcm_toupper(*cp) - 'A' + 10) <
+		isdigit(*cp) ? *cp - '0' : toupper(*cp) - 'A' + 10) <
 	       base) {
 		result = result * base + value;
 		/* Detected overflow */
@@ -1775,7 +1731,7 @@ int bcm_format_ssid(char *buf, const uchar ssid[], uint ssid_len)
 		if (c == '\\') {
 			*p++ = '\\';
 			*p++ = '\\';
-		} else if (bcm_isprint((uchar) c)) {
+		} else if (isprint((uchar) c)) {
 			*p++ = (char)c;
 		} else {
 			p += snprintf(p, (endp - p), "\\x%02X", c);
diff --git a/drivers/staging/brcm80211/util/bcmwifi.c b/drivers/staging/brcm80211/util/bcmwifi.c
index 5eced8e..cb41d10 100644
--- a/drivers/staging/brcm80211/util/bcmwifi.c
+++ b/drivers/staging/brcm80211/util/bcmwifi.c
@@ -19,9 +19,10 @@
 #include <osl.h>
 #include <bcmutils.h>
 #define strtoul(nptr, endptr, base) bcm_strtoul((nptr), (endptr), (base))
-#define tolower(c) (bcm_isupper((c)) ? ((c) + 'a' - 'A') : (c))
 #include <bcmwifi.h>
 
+#include <linux/ctype.h>
+
 /* Chanspec ASCII representation:
  * <channel><band><bandwidth><ctl-sideband>
  *   digit   [AB]     [N]        [UL]
