In certain modes SDIO-connected bwfm(4) chips might expect us to read

another packet (even though nextlen is set to none) to issue more RX
interrupts.

diff --git a/sys/dev/sdmmc/if_bwfm_sdio.c b/sys/dev/sdmmc/if_bwfm_sdio.c
index fb90281..ff00260 100644 (file)
--- a/sys/dev/sdmmc/if_bwfm_sdio.c
+++ b/sys/dev/sdmmc/if_bwfm_sdio.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: if_bwfm_sdio.c,v 1.20 2018/06/18 15:01:22 kettenis Exp $ */
+/* $OpenBSD: if_bwfm_sdio.c,v 1.21 2018/07/16 13:41:19 patrick Exp $ */
 /*
  * Copyright (c) 2010-2016 Broadcom Corporation
  * Copyright (c) 2016,2017 Patrick Wildt <patrick@blueri.se>
@@ -1156,7 +1156,7 @@ bwfm_sdio_rx_frames(struct bwfm_sdio_softc *sc)
        swhdr = (struct bwfm_sdio_swhdr *)&hwhdr[1];
        data = (char *)&swhdr[1];
 
-       do {
+       for (;;) {
                /* If we know the next size, just read ahead. */
                if (nextlen) {
                        if (bwfm_sdio_frame_read_write(sc, sc->sc_bounce_buf,
@@ -1249,7 +1249,7 @@ bwfm_sdio_rx_frames(struct bwfm_sdio_softc *sc)
                        printf("%s: unknown channel\n", DEVNAME(sc));
                        break;
                }
-       } while (nextlen);
+       }
 }
 
 void