diff -ru qemu-5.2.0/slirp/src/slirp.c qemu-5.2.0-wrk/slirp/src/slirp.c
--- qemu/slirp/src/slirp.c 2021-02-10 11:02:07.000000000 +0000
+++ qemu/slirp/src/slirp.c 2021-02-10 13:07:17.000000000 +0000
@@ -23,7 +23,7 @@
  * THE SOFTWARE.
  */
 #include "slirp.h"
-
+#define IGNOREPOLLPRI

 #ifndef _WIN32
 #include <net/if.h>
@@ -621,6 +621,8 @@
              * This will soread as well, so no need to
              * test for SLIRP_POLL_IN below if this succeeds
              */
+
+#ifndef IGNOREPOLLPRI
             if (revents & SLIRP_POLL_PRI) {
                ret = sorecvoob(so);
                if (ret < 0) {
@@ -633,6 +635,9 @@
              * Check sockets for reading
              */
             else if (revents &
+#else
+ if (revents &
+#endif
                      (SLIRP_POLL_IN | SLIRP_POLL_HUP | SLIRP_POLL_ERR)) {
                 /*
                  * Check for incoming connections