[src/trunk]: src/sys/arch/amiga/dev esstart(): Replace "IF_DEQUEUE() -> IF_PR...

[thorpej <thorpej%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/1e797154a547
branches:  trunk
changeset: 369512:1e797154a547
user:      thorpej <thorpej%NetBSD.org@localhost>
date:      Sat Aug 20 16:47:01 2022 +0000

description:
esstart(): Replace "IF_DEQUEUE() -> IF_PREPEND() on failure" with
"IF_POLL() -> IF_DEQUEUE() on success".

diffstat:

 sys/arch/amiga/dev/if_es.c |  9 ++++-----
 1 files changed, 4 insertions(+), 5 deletions(-)

diffs (47 lines):

diff -r ffe9892e10a6 -r 1e797154a547 sys/arch/amiga/dev/if_es.c
--- a/sys/arch/amiga/dev/if_es.c        Sat Aug 20 15:12:27 2022 +0000
+++ b/sys/arch/amiga/dev/if_es.c        Sat Aug 20 16:47:01 2022 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: if_es.c,v 1.66 2022/05/24 20:50:18 andvar Exp $ */
+/*     $NetBSD: if_es.c,v 1.67 2022/08/20 16:47:01 thorpej Exp $ */
 
 /*
  * Copyright (c) 1995 Michael L. Hitch
@@ -33,7 +33,7 @@
 #include "opt_ns.h"
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: if_es.c,v 1.66 2022/05/24 20:50:18 andvar Exp $");
+__KERNEL_RCSID(0, "$NetBSD: if_es.c,v 1.67 2022/08/20 16:47:01 thorpej Exp $");
 
 
 #include <sys/param.h>
@@ -780,7 +780,7 @@
                 * Sneak a peek at the next packet to get the length
                 * and see if the SMC 91C90 can accept it.
                 */
-               m = sc->sc_ethercom.ec_if.if_snd.ifq_head;
+               IF_POLL(&sc->sc_ethercom.ec_if.if_snd, m);
                if (!m)
                        break;
 #ifdef ESDEBUG
@@ -815,7 +815,6 @@
                        smc->b2.bsr = BSR_BANK2;
                }
 #endif
-               IF_DEQUEUE(&sc->sc_ethercom.ec_if.if_snd, m);
                smc->b2.ptr = PTR_AUTOINCR;
                (void) smc->b2.mmucr;
                data = (volatile u_short *)&smc->b2.data;
@@ -912,10 +911,10 @@
                            start_ptr, end_ptr, SWAP(smc->b2.ptr));
                        --sc->sc_smcbusy;
 #endif
-                       IF_PREPEND(&sc->sc_ethercom.ec_if.if_snd, m0);
                        esinit(sc);     /* It's really hosed - reset */
                        return;
                }
+               IF_DEQUEUE(&sc->sc_ethercom.ec_if.if_snd, m);
                smc->b2.mmucr = MMUCR_ENQ_TX;
                if (smc->b2.pnr != active_pnr)
                        printf("%s: esstart - PNR changed %x->%x\n",