[rtems-libbsd commit] if_dwc: Invalidate read buffer again

[Sebastian Huber]

Module:    rtems-libbsd
Branch:    master
Commit:    8c5aecfde3992054d2929a238d9ae666dd72682b
Changeset: http://git.rtems.org/rtems-libbsd/commit/?id=8c5aecfde3992054d2929a238d9ae666dd72682b

Author:    Sebastian Huber <sebastian.huber at embedded-brains.de>
Date:      Mon Sep  7 08:33:16 2015 +0200

if_dwc: Invalidate read buffer again

This may prevent problems in case a cache line prefetch added some lines
to the cache during a DMA transfer.

---

 freebsd/sys/dev/dwc/if_dwc.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/freebsd/sys/dev/dwc/if_dwc.c b/freebsd/sys/dev/dwc/if_dwc.c
index 24882ce..359226d 100644
--- a/freebsd/sys/dev/dwc/if_dwc.c
+++ b/freebsd/sys/dev/dwc/if_dwc.c
@@ -985,6 +985,7 @@ dwc_rxfinish_locked(struct dwc_softc *sc)
 			if_inc_counter(ifp, IFCOUNTER_IPACKETS, 1);
 #else /* __rtems__ */
 			++ifp->if_ipackets;
+			rtems_cache_invalidate_multiple_data_lines(m->m_data, m->m_len);
 #endif /* __rtems__ */
 
 			DWC_UNLOCK(sc);