NFC: NCI: Fix max length of General Bytes in ATR_RES

The maximum size of ATR_REQ and ATR_RES is 64 bytes.
The maximum number of General Bytes is calculated by
the maximum number of data bytes in the ATR_REQ/ATR_RES,
substracted by the number of mandatory data bytes.

ATR_REQ: 16 mandatory data bytes, giving a maximum of
48 General Bytes.
ATR_RES: 17 mandatory data bytes, giving a maximum of
47 General Bytes.

Regression introduced in commit a99903ec.

Signed-off-by: Julien Lefrique <lefrique@marvell.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/uapi/linux/nfc.h b/include/uapi/linux/nfc.h
index 3c5efb1bc393..8119255feae4 100644
--- a/include/uapi/linux/nfc.h
+++ b/include/uapi/linux/nfc.h
@@ -205,6 +205,8 @@ enum nfc_sdp_attr {
 #define NFC_SENSF_RES_MAXSIZE           18
 #define NFC_ATR_REQ_MAXSIZE             64
 #define NFC_ATR_RES_MAXSIZE             64
+#define NFC_ATR_REQ_GB_MAXSIZE          48
+#define NFC_ATR_RES_GB_MAXSIZE          47
 #define NFC_GB_MAXSIZE                  48
 #define NFC_FIRMWARE_NAME_MAXSIZE       32
 #define NFC_ISO15693_UID_MAXSIZE        8