prov/rxm: fix rxm multi recv getopt segfault

this prevents a segfault when the application calls fi_getopt of FI_OPT_MIN_MULTI_RECV before the endpoint gets enabled. Signed-off-by: Jerome Soumagne <[email protected]>
ofiwg · Jan 25, 2025 · 9e2caa7 · 9e2caa7
1 parent d1fd795
commit 9e2caa7
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/prov/rxm/src/rxm_ep.c b/prov/rxm/src/rxm_ep.c
@@ -270,8 +270,10 @@ static int rxm_ep_getopt(fid_t fid, int level, int optname, void *optval,
 
 	switch (optname) {
 	case FI_OPT_MIN_MULTI_RECV:
-		return rxm_ep->srx->ep_fid.ops->getopt(&rxm_ep->srx->ep_fid.fid,
-						level, optname, optval, optlen);
+		assert(sizeof(rxm_ep->min_multi_recv_size) == sizeof(size_t));
+		*(size_t *)optval = rxm_ep->min_multi_recv_size;
+		*optlen = sizeof(size_t);
+		break;
 	case FI_OPT_BUFFERED_MIN:
 		assert(sizeof(rxm_ep->buffered_min) == sizeof(size_t));
 		*(size_t *)optval = rxm_ep->buffered_min;