[tip:irq/core] irq/work: Don't reinvent the wheel but use existing llist API

[tip-bot for Byungchul Park]

Commit-ID:  16c0890dc66d258fdeccf7b15a133f3930b19143
Gitweb:     https://git.kernel.org/tip/16c0890dc66d258fdeccf7b15a133f3930b19143
Author:     Byungchul Park <byungchul.park@xxxxxxx>
AuthorDate: Tue, 31 Oct 2017 02:46:54 +0100
Committer:  Ingo Molnar <mingo@xxxxxxxxxx>
CommitDate: Tue, 31 Oct 2017 10:24:39 +0100

irq/work: Don't reinvent the wheel but use existing llist API

Use the proper llist APIs instead of open-coded variants of them.

Signed-off-by: Byungchul Park <byungchul.park@xxxxxxx>
Signed-off-by: Frederic Weisbecker <frederic@xxxxxxxxxx>
Acked-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Link: http://lkml.kernel.org/r/1509414414-14987-1-git-send-email-frederic@xxxxxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
---
 kernel/irq_work.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/kernel/irq_work.c b/kernel/irq_work.c
index bcf107c..e2ebe8c 100644
--- a/kernel/irq_work.c
+++ b/kernel/irq_work.c
@@ -138,11 +138,7 @@ static void irq_work_run_list(struct llist_head *list)
 		return;
 
 	llnode = llist_del_all(list);
-	while (llnode != NULL) {
-		work = llist_entry(llnode, struct irq_work, llnode);
-
-		llnode = llist_next(llnode);
-
+	llist_for_each_entry(work, llnode, llnode) {
 		/*
 		 * Clear the PENDING bit, after this point the @work
 		 * can be re-used.