diff options
Diffstat (limited to 'net/smc/smc_cdc.h')
| -rw-r--r-- | net/smc/smc_cdc.h | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/net/smc/smc_cdc.h b/net/smc/smc_cdc.h index ab240b37ad114..f60082fee5b87 100644 --- a/net/smc/smc_cdc.h +++ b/net/smc/smc_cdc.h @@ -48,7 +48,7 @@ struct smc_cdc_msg { struct smc_cdc_producer_flags prod_flags; struct smc_cdc_conn_state_flags conn_state_flags; u8 reserved[18]; -} __aligned(8); +} __packed; /* format defined in RFC7609 */ static inline bool smc_cdc_rxed_any_close(struct smc_connection *conn) { @@ -146,6 +146,19 @@ static inline int smc_curs_diff(unsigned int size, return max_t(int, 0, (new->count - old->count)); } +/* calculate cursor difference between old and new - returns negative + * value in case old > new + */ +static inline int smc_curs_comp(unsigned int size, + union smc_host_cursor *old, + union smc_host_cursor *new) +{ + if (old->wrap > new->wrap || + (old->wrap == new->wrap && old->count > new->count)) + return -smc_curs_diff(size, new, old); + return smc_curs_diff(size, old, new); +} + static inline void smc_host_cursor_to_cdc(union smc_cdc_cursor *peer, union smc_host_cursor *local, struct smc_connection *conn) |