staging: rtl8723au: make source * argument const

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8723au/core/rtw_ieee80211.c

@@ -131,7 +131,7 @@ u8 *rtw_set_fixed_ie23a(unsigned char *pbuf, unsigned int len,
 }
 
 /*  rtw_set_ie23a will update frame length */
-u8 *rtw_set_ie23a(u8 *pbuf, int index, uint len, u8 *source, uint *frlen)
+u8 *rtw_set_ie23a(u8 *pbuf, int index, uint len, const u8 *source, uint *frlen)
 {
 
 	*pbuf = (u8)index;

drivers/staging/rtl8723au/include/ieee80211.h

@@ -518,7 +518,7 @@ enum parse_res rtw_ieee802_11_parse_elems23a(u8 *start, uint len,
 				int show_errors);
 
 u8 *rtw_set_fixed_ie23a(unsigned char *pbuf, unsigned int len, unsigned char *source, unsigned int *frlen);
-u8 *rtw_set_ie23a(u8 *pbuf, int index, uint len, u8 *source, uint *frlen);
+u8 *rtw_set_ie23a(u8 *pbuf, int index, uint len, const u8 *source, uint *frlen);
 
 enum secondary_ch_offset {
 	SCN = 0, /* no secondary channel */