The ESC dispatch value has some history and it originally was 0x7f in rfc4944 (see section-5.1). With the release of rfc6282 this value got part of the LOWPAN_IPHC range and was no longer available for ESC. Instead 0x40 was used as replacement (see section-2 in rfc6282). We have been checking the dispatch byte in an order where IPHC would always be evaluated before ESC and thus we would never reach the ESC check as the IPHC range already covers this value. Signed-off-by: Stefan Schmidt <stefan@xxxxxxxxxxxxxxx> --- net/ieee802154/6lowpan/rx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/ieee802154/6lowpan/rx.c b/net/ieee802154/6lowpan/rx.c index 3c31980..b1fd47d 100644 --- a/net/ieee802154/6lowpan/rx.c +++ b/net/ieee802154/6lowpan/rx.c @@ -20,7 +20,7 @@ #define LOWPAN_DISPATCH_FRAG_MASK 0xf8 #define LOWPAN_DISPATCH_NALP 0x00 -#define LOWPAN_DISPATCH_ESC 0x7f +#define LOWPAN_DISPATCH_ESC 0x40 #define LOWPAN_DISPATCH_HC1 0x42 #define LOWPAN_DISPATCH_DFF 0x43 #define LOWPAN_DISPATCH_BC0 0x50 -- 2.4.3 -- To unsubscribe from this list: send the line "unsubscribe linux-wpan" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
