Description of problem:

The man page for iblinkinfo --diffcheck indicates: 


--diffcheck <key(s)> Specify what diff checks should  be  done  in  the
       --diff  option  above.  Comma separate multiple diff check key(s).  The
       available diff checks are: sw = switches, ca = channel adapters, router
       =  routers,  port  =  port  connections,  lid  =  lids, nodedesc = node
       descriptions.


However, the source takes only 'port', 'state', 'lid', and 'nodedesc': 

src/iblinkinfo.c:
static int process_opt(void *context, int ch, char *optarg)
{
        struct ibnd_config *cfg = context;
        char *p;

        switch (ch) {
- - - - - - - - - - - - [SNIP] - - - - - - - - - - - - 
        case 4:                         // --diffcheck 
                diffcheck_flags = 0;
                p = strtok(optarg, ",");
                while (p) {
                        if (!strcasecmp(p, "port"))
                                diffcheck_flags |= DIFF_FLAG_PORT_CONNECTION;
                        else if (!strcasecmp(p, "state"))
                                diffcheck_flags |= DIFF_FLAG_PORT_STATE;
                        else if (!strcasecmp(p, "lid"))
                                diffcheck_flags |= DIFF_FLAG_LID;
                        else if (!strcasecmp(p, "nodedesc"))
                                diffcheck_flags |= DIFF_FLAG_NODE_DESCRIPTION;
                        else {
                                fprintf(stderr, "invalid diff check key: %s\n",
                                        p);
                                return -1;
                        }
                        p = strtok(NULL, ",");
                }
                break;




Version-Release number of selected component (if applicable):

infiniband-diags-2.0.0


How reproducible:

Always


Steps to Reproduce:
1. run 'ibdiagnet --diffcheck sw --diff <cache file>' or something similar 
2.
3.

Actual results:

"invalid diff check key: ..." errors


Expected results:


Additional info: