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ethervt610xx: dont assume sizeof(Ds) <= cls

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cinap_lenrek 2012-05-23 18:30:34 +02:00
parent 2c47b855b1
commit a170c952ff
2 changed files with 6 additions and 19 deletions
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18
sys/src/9/pc/ethervt6102.c
View File

@ -468,7 +468,7 @@ enable:
static void
vt6102attach(Ether* edev)
{
int i;
int dsz, i;
Ctlr *ctlr;
Ds *ds, *prev;
uchar *alloc, *bounce;
@ -488,13 +488,13 @@ vt6102attach(Ether* edev)
*/
ctlr->nrd = Nrd;
ctlr->ntd = Ntd;
alloc = malloc((ctlr->nrd+ctlr->ntd)*ctlr->cls + ctlr->ntd*Txcopy + ctlr->cls-1);
dsz = ROUNDUP(sizeof(Ds), ctlr->cls);
alloc = mallocalign((ctlr->nrd+ctlr->ntd)*dsz + ctlr->ntd*Txcopy, dsz, 0, 0);
if(alloc == nil){
qunlock(&ctlr->alock);
error(Enomem);
}
ctlr->alloc = alloc;
alloc = (uchar*)ROUNDUP((ulong)alloc, ctlr->cls);
ctlr->rd = (Ds*)alloc;
@ -517,7 +517,7 @@ vt6102attach(Ether* edev)
prev = ctlr->rd + ctlr->nrd-1;
for(i = 0; i < ctlr->nrd; i++){
ds = (Ds*)alloc;
alloc += ctlr->cls;
alloc += dsz;
ds->control = Rdbsz;
ds->branch = PCIWADDR(alloc);
@ -541,10 +541,10 @@ vt6102attach(Ether* edev)
ctlr->td = (Ds*)alloc;
prev = ctlr->td + ctlr->ntd-1;
bounce = alloc + ctlr->ntd*ctlr->cls;
bounce = alloc + ctlr->ntd*dsz;
for(i = 0; i < ctlr->ntd; i++){
ds = (Ds*)alloc;
alloc += ctlr->cls;
alloc += dsz;
ds->bounce = bounce;
bounce += Txcopy;
@ -978,12 +978,6 @@ vt6102pci(void)
if((cls = pcicfgr8(p, PciCLS)) == 0 || cls == 0xFF)
cls = 0x10;
ctlr->cls = cls*4;
if(ctlr->cls < sizeof(Ds)){
print("vt6102: cls %d < sizeof(Ds)\n", ctlr->cls);
iofree(port);
free(ctlr);
continue;
}
ctlr->tft = Ctft64;
if(vt6102reset(ctlr)){

7
sys/src/9/pc/ethervt6105m.c
View File

@ -610,7 +610,6 @@ static void
vt6105Mattach(Ether* edev)
{
Ctlr *ctlr;
// MiiPhy *phy;
uchar *alloc;
Ds *ds, *prev;
int dsz, i, timeo;
@ -1142,12 +1141,6 @@ vt6105Mpci(void)
if((cls = pcicfgr8(p, PciCLS)) == 0 || cls == 0xFF)
cls = 0x10;
ctlr->cls = cls*4;
if(ctlr->cls < sizeof(Ds)){
print("vt6105M: cls %d < sizeof(Ds)\n", ctlr->cls);
iofree(port);
free(ctlr);
continue;
}
ctlr->tft = CtftSAF;
if(vt6105Mreset(ctlr)){