must splimp before messing with inqueues if device interrupts at lower ipl

[unix-history] / usr / src / sys / vax / if / if_en.c

diff --git a/usr/src/sys/vax/if/if_en.c b/usr/src/sys/vax/if/if_en.c
index eefec06..4a9948d 100644 (file)
--- a/usr/src/sys/vax/if/if_en.c
+++ b/usr/src/sys/vax/if/if_en.c
@@ -1,4 +1,4 @@
-/*     if_en.c 6.2     84/04/12        */
+/*     if_en.c 6.3     84/05/18        */

 
 #include "en.h"
 
 
 #include "en.h"
 


@@ -364,7 +364,7 @@ enrint(unit)
        struct mbuf *m;
        int len; short resid;
        register struct ifqueue *inq;
        struct mbuf *m;
        int len; short resid;
        register struct ifqueue *inq;

-       int off;
+       int off, s;

 
        es->es_if.if_ipackets++;
 
 
        es->es_if.if_ipackets++;
 


@@ -453,11 +453,13 @@ enrint(unit)
                goto setup;
        }
 
                goto setup;
        }
 

+       s = splimp();

        if (IF_QFULL(inq)) {
                IF_DROP(inq);
                m_freem(m);
        } else
                IF_ENQUEUE(inq, m);
        if (IF_QFULL(inq)) {
                IF_DROP(inq);
                m_freem(m);
        } else
                IF_ENQUEUE(inq, m);

+       splx(s);

 
 setup:
        /*
 
 setup:
        /*