From: Samuel Ortiz Date: Mon, 3 Jun 2013 10:10:04 +0000 (+0200) Subject: NFC: llcp: Fix the well known services endianness X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=4ca546e5545b7345b69e9331ecd53a1e4c6f7fe1;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git 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 --- diff --git a/net/nfc/llcp_core.c b/net/nfc/llcp_core.c index d45bcbbc9f78..81cd3416c7d4 100644 --- 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,