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list.h: Add list_splice_tail() and list_splice_tail_init()

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If you are using linked lists for queues list_splice() will not do what
you would expect even if you use the elements passed reversed. We need
to handle these differently. We add list_splice_tail() and
list_splice_tail_init().

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Luis R. Rodriguez
2008-08-06 15:21:26 -07:00
committed by John W. Linville
parent e6fce5b916
commit 7d283aee50
3 changed files with 40 additions and 11 deletions
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2
drivers/usb/host/ehci-q.c
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@ -932,7 +932,7 @@ static struct ehci_qh *qh_append_tds (
list_del (&qtd->qtd_list);
list_add (&dummy->qtd_list, qtd_list);
__list_splice (qtd_list, qh->qtd_list.prev);
list_splice_tail(qtd_list, &qh->qtd_list);
ehci_qtd_init(ehci, qtd, qtd->qtd_dma);
qh->dummy = qtd;