diff options
| author | Ursula Braun <ubraun@linux.vnet.ibm.com> | 2017-01-12 14:57:15 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-01-12 09:47:01 -0500 |
| commit | 143c017108f8a695e4e1c1f5ec57ee89be9cad70 (patch) | |
| tree | 397034c602b8b7ef3982b76193bb63c13583d985 /net/smc/smc_ib.h | |
| parent | 526735ddc0ae8c7a7751e9ad3a57ae76cd3c35d5 (diff) | |
smc: ETH_ALEN as memcpy length for mac addresses
When creating an SMC connection, there is a CLC (connection layer control)
handshake to prepare for RDMA traffic. The corresponding code is part of
commit 0cfdd8f92cac ("smc: connection and link group creation").
Mac addresses to be exchanged in the handshake are copied with a wrong
length of 12 instead of 6 bytes. Following code overwrites the wrongly
copied code, but nevertheless the correct length should already be used for
the preceding mac address copying. Use ETH_ALEN for the memcpy length with
mac addresses.
Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com>
Fixes: 0cfdd8f92cac ("smc: connection and link group creation")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/smc/smc_ib.h')
| -rw-r--r-- | net/smc/smc_ib.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/net/smc/smc_ib.h b/net/smc/smc_ib.h index 3fe2d55c6051..a95f74bb5569 100644 --- a/net/smc/smc_ib.h +++ b/net/smc/smc_ib.h @@ -11,6 +11,7 @@ #ifndef _SMC_IB_H #define _SMC_IB_H +#include <linux/if_ether.h> #include <rdma/ib_verbs.h> #define SMC_MAX_PORTS 2 /* Max # of ports */ @@ -34,7 +35,8 @@ struct smc_ib_device { /* ib-device infos for smc */ struct ib_cq *roce_cq_recv; /* recv completion queue */ struct tasklet_struct send_tasklet; /* called by send cq handler */ struct tasklet_struct recv_tasklet; /* called by recv cq handler */ - char mac[SMC_MAX_PORTS][6]; /* mac address per port*/ + char mac[SMC_MAX_PORTS][ETH_ALEN]; + /* mac address per port*/ union ib_gid gid[SMC_MAX_PORTS]; /* gid per port */ u8 initialized : 1; /* ib dev CQ, evthdl done */ struct work_struct port_event_work; |