33 lines
1.1 KiB
Diff
33 lines
1.1 KiB
Diff
From d012b82915f534d4aa97b52f55df9720324d3558 Mon Sep 17 00:00:00 2001
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From: Peter Zijlstra <peterz@infradead.org>
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Date: Tue, 21 Jun 2011 11:22:36 +0200
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Subject: [042/254] list-add-list-last-entry.patch
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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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---
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include/linux/list.h | 11 +++++++++++
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1 file changed, 11 insertions(+)
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diff --git a/include/linux/list.h b/include/linux/list.h
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index cc6d2aa..7a9851b 100644
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--- a/include/linux/list.h
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+++ b/include/linux/list.h
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@@ -362,6 +362,17 @@ static inline void list_splice_tail_init(struct list_head *list,
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list_entry((ptr)->next, type, member)
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/**
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+ * list_last_entry - get the last element from a list
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+ * @ptr: the list head to take the element from.
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+ * @type: the type of the struct this is embedded in.
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+ * @member: the name of the list_struct within the struct.
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+ *
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+ * Note, that list is expected to be not empty.
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+ */
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+#define list_last_entry(ptr, type, member) \
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+ list_entry((ptr)->prev, type, member)
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+
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+/**
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* list_for_each - iterate over a list
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* @pos: the &struct list_head to use as a loop cursor.
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* @head: the head for your list.
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