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xen-netback: remove dead code

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The array mmap_pages is never touched in the initialization function. This is
remnant of mapping mechanism, which does not exist upstream. In current
upstream code this array only tracks usage of pages inside netback. Those
pages are allocated when contructing a SKB and passed directly to network
subsystem.

Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Wei Liu 2013-05-16 23:24:28 +00:00 committed by David S. Miller
parent 650c849670
commit f1db320ec5
1 changed files with 0 additions and 4 deletions
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4
drivers/net/xen-netback/netback.c
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@ -1939,10 +1939,6 @@ static int __init netback_init(void)
failed_init:
while (--group >= 0) {
struct xen_netbk *netbk = &xen_netbk[group];
for (i = 0; i < MAX_PENDING_REQS; i++) {
if (netbk->mmap_pages[i])
__free_page(netbk->mmap_pages[i]);
}
del_timer(&netbk->net_timer);
kthread_stop(netbk->task);
}