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Don't return random garbage in the default case; return the smallest ring

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descriptor instead.
This commit is contained in:
christos 2003-10-26 18:20:43 +00:00
parent 94920a3392
commit 93af726cde
1 changed files with 13 additions and 25 deletions
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38
sys/dev/ic/gem.c
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@ -1,4 +1,4 @@
/* $NetBSD: gem.c,v 1.28 2003/08/24 18:07:03 chs Exp $ */
/* $NetBSD: gem.c,v 1.29 2003/10/26 18:20:43 christos Exp $ */
/*
*
@ -34,7 +34,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: gem.c,v 1.28 2003/08/24 18:07:03 chs Exp $");
__KERNEL_RCSID(0, "$NetBSD: gem.c,v 1.29 2003/10/26 18:20:43 christos Exp $");
#include "bpfilter.h"
@ -721,41 +721,29 @@ gem_meminit(struct gem_softc *sc)
static int
gem_ringsize(int sz)
{
int v;
switch (sz) {
case 32:
v = GEM_RING_SZ_32;
break;
return GEM_RING_SZ_32;
case 64:
v = GEM_RING_SZ_64;
break;
return GEM_RING_SZ_64;
case 128:
v = GEM_RING_SZ_128;
break;
return GEM_RING_SZ_128;
case 256:
v = GEM_RING_SZ_256;
break;
return GEM_RING_SZ_256;
case 512:
v = GEM_RING_SZ_512;
break;
return GEM_RING_SZ_512;
case 1024:
v = GEM_RING_SZ_1024;
break;
return GEM_RING_SZ_1024;
case 2048:
v = GEM_RING_SZ_2048;
break;
return GEM_RING_SZ_2048;
case 4096:
v = GEM_RING_SZ_4096;
break;
return GEM_RING_SZ_4096;
case 8192:
v = GEM_RING_SZ_8192;
break;
return GEM_RING_SZ_8192;
default:
printf("gem: invalid Receive Descriptor ring size\n");
break;
printf("gem: invalid Receive Descriptor ring size %d\n", sz);
return GEM_RING_SZ_32;
}
return (v);
}
/*