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Subject[PATCH 2.6.12-rc2] aoe [4/6]: allow multiple aoe devices to have the same mac
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allow multiple aoe devices to have the same mac

Signed-off-by: Ed L. Cashin <ecashin@coraid.com>

diff -u b/drivers/block/aoe/aoedev.c b/drivers/block/aoe/aoedev.c
--- b/drivers/block/aoe/aoedev.c 2005-04-20 11:42:18.000000000 -0400
+++ b/drivers/block/aoe/aoedev.c 2005-04-20 11:42:22.000000000 -0400
@@ -109,25 +109,22 @@
spin_lock_irqsave(&devlist_lock, flags);

for (d=devlist; d; d=d->next)
- if (d->sysminor == sysminor
- || memcmp(d->addr, addr, sizeof d->addr) == 0)
+ if (d->sysminor == sysminor)
break;

if (d == NULL && (d = aoedev_newdev(bufcnt)) == NULL) {
spin_unlock_irqrestore(&devlist_lock, flags);
printk(KERN_INFO "aoe: aoedev_set: aoedev_newdev failure.\n");
return NULL;
- }
+ } /* if newdev, (d->flags & DEVFL_UP) == 0 for below */

spin_unlock_irqrestore(&devlist_lock, flags);
spin_lock_irqsave(&d->lock, flags);

d->ifp = ifp;
-
- if (d->sysminor != sysminor
- || (d->flags & DEVFL_UP) == 0) {
+ memcpy(d->addr, addr, sizeof d->addr);
+ if ((d->flags & DEVFL_UP) == 0) {
aoedev_downdev(d); /* flushes outstanding frames */
- memcpy(d->addr, addr, sizeof d->addr);
d->sysminor = sysminor;
d->aoemajor = AOEMAJOR(sysminor);
d->aoeminor = AOEMINOR(sysminor);

--
Ed L. Cashin <ecashin@coraid.com>

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