From: Phil Sutter <phil@nwl.cc>
To: Pablo Neira Ayuso <pablo@netfilter.org>
Cc: netfilter-devel@vger.kernel.org,
Arturo Borrero Gonzalez <arturo@netfilter.org>
Subject: [nft PATCH 2/4] list: Introduce list_last_entry
Date: Wed, 12 Jul 2017 14:36:56 +0200 [thread overview]
Message-ID: <20170712123658.25363-3-phil@nwl.cc> (raw)
In-Reply-To: <20170712123658.25363-1-phil@nwl.cc>
Similar to list_first_entry, this macro allows to retrieve the list's
last entry.
Signed-off-by: Phil Sutter <phil@nwl.cc>
---
include/list.h | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/include/list.h b/include/list.h
index 75d2921240101..5405dbbc0066b 100644
--- a/include/list.h
+++ b/include/list.h
@@ -337,6 +337,17 @@ static inline void list_splice_tail_init(struct list_head *list,
#define list_first_entry(ptr, type, member) \
list_entry((ptr)->next, type, member)
+/**
+ * list_last_entry - get the last element from a list
+ * @ptr: the list head to take the element from.
+ * @type: the type of the struct this is embedded in.
+ * @member: the name of the list_struct within the struct.
+ *
+ * Note, that list is expected to be not empty.
+ */
+#define list_last_entry(ptr, type, member) \
+ list_entry((ptr)->prev, type, member)
+
/**
* list_for_each_entry - iterate over list of given type
--
2.13.1
next prev parent reply other threads:[~2017-07-12 12:37 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-07-12 12:36 [nft PATCH 0/4] monitor: Fix printing of range elements in named sets Phil Sutter
2017-07-12 12:36 ` [nft PATCH 1/4] " Phil Sutter
2017-07-12 16:30 ` Arturo Borrero Gonzalez
2017-07-12 19:05 ` Phil Sutter
2017-07-13 18:22 ` Phil Sutter
2017-07-14 9:03 ` Arturo Borrero Gonzalez
2017-07-17 16:12 ` Pablo Neira Ayuso
2017-07-17 17:02 ` Phil Sutter
2017-07-12 12:36 ` Phil Sutter [this message]
2017-07-12 15:41 ` [nft PATCH 2/4] list: Introduce list_last_entry Arturo Borrero Gonzalez
2017-07-12 19:15 ` Phil Sutter
2017-07-12 12:36 ` [nft PATCH 3/4] expression: Introduce compound_expr_last Phil Sutter
2017-07-12 15:42 ` Arturo Borrero Gonzalez
2017-07-12 12:36 ` [nft PATCH 4/4] monitor: Ignore ranges' zero segment Phil Sutter
2017-07-12 15:49 ` Arturo Borrero Gonzalez
2017-07-12 19:11 ` Phil Sutter
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