diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/can/dev.h | 9 | ||||
| -rw-r--r-- | include/linux/rtnetlink.h | 6 |
2 files changed, 11 insertions, 4 deletions
diff --git a/include/linux/can/dev.h b/include/linux/can/dev.h index 1ed2a5cc03f5..3db7767d2a17 100644 --- a/include/linux/can/dev.h +++ b/include/linux/can/dev.h @@ -51,6 +51,15 @@ struct can_priv { struct sk_buff **echo_skb; }; +/* + * get_can_dlc(value) - helper macro to cast a given data length code (dlc) + * to __u8 and ensure the dlc value to be max. 8 bytes. + * + * To be used in the CAN netdriver receive path to ensure conformance with + * ISO 11898-1 Chapter 8.4.2.3 (DLC field) + */ +#define get_can_dlc(i) (min_t(__u8, (i), 8)) + struct net_device *alloc_candev(int sizeof_priv, unsigned int echo_skb_max); void free_candev(struct net_device *dev); diff --git a/include/linux/rtnetlink.h b/include/linux/rtnetlink.h index 14fc906ed602..05330fc5b436 100644 --- a/include/linux/rtnetlink.h +++ b/include/linux/rtnetlink.h @@ -368,11 +368,9 @@ enum { #define RTAX_MAX (__RTAX_MAX - 1) #define RTAX_FEATURE_ECN 0x00000001 -#define RTAX_FEATURE_NO_SACK 0x00000002 -#define RTAX_FEATURE_NO_TSTAMP 0x00000004 +#define RTAX_FEATURE_SACK 0x00000002 +#define RTAX_FEATURE_TIMESTAMP 0x00000004 #define RTAX_FEATURE_ALLFRAG 0x00000008 -#define RTAX_FEATURE_NO_WSCALE 0x00000010 -#define RTAX_FEATURE_NO_DSACK 0x00000020 struct rta_session { __u8 proto; |
