NFC: llcp: Fix the well known services endianness

The WKS (Well Known Services) bitmask should be transmitted in big endian
order. Picky implementations will refuse to establish an LLCP link when the
WKS bit 0 is not set to 1. The vast majority of implementations out there
are not that picky though...

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

diff --git a/net/nfc/llcp_core.c b/net/nfc/llcp_core.c
index d45bcbbc9f7888921b5351e4f75173dbc8cf8c42..81cd3416c7d4dfaae5805441adb6179b210374a3 100644 (file)
--- a/net/nfc/llcp_core.c
+++ b/net/nfc/llcp_core.c
@@ -537,6 +537,7 @@ static int nfc_llcp_build_gb(struct nfc_llcp_local *local)
        u8 *lto_tlv, lto_length;
        u8 *wks_tlv, wks_length;
        u8 *miux_tlv, miux_length;
+       __be16 wks = cpu_to_be16(local->local_wks);
        u8 gb_len = 0;
        int ret = 0;
 
@@ -549,8 +550,7 @@ static int nfc_llcp_build_gb(struct nfc_llcp_local *local)
        gb_len += lto_length;
 
        pr_debug("Local wks 0x%lx\n", local->local_wks);
-       wks_tlv = nfc_llcp_build_tlv(LLCP_TLV_WKS, (u8 *)&local->local_wks, 2,
-                                    &wks_length);
+       wks_tlv = nfc_llcp_build_tlv(LLCP_TLV_WKS, (u8 *)&wks, 2, &wks_length);
        gb_len += wks_length;
 
        miux_tlv = nfc_llcp_build_tlv(LLCP_TLV_MIUX, (u8 *)&local->miux, 0,