[PATCH cgroup/for-4.12] cgroup: mark cgroup_get() with __maybe_unused

From	Tejun Heo <tj@kernel.org>
Newsgroups	linux.kernel
Subject	[PATCH cgroup/for-4.12] cgroup: mark cgroup_get() with __maybe_unused
Date	2017-05-01 21:50 +0200
Message-ID	<tCpux-4NU-9@gated-at.bofh.it> (permalink)
References	<tCbBf-4rU-5@gated-at.bofh.it>
Organization	linux.* mail to news gateway

Show all headers | View raw

From 310b4816a5d8082416b4ab83e5a7b3cb92883a4d Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Mon, 1 May 2017 15:24:14 -0400

a590b90d472f ("cgroup: fix spurious warnings on cgroup_is_dead() from
cgroup_sk_alloc()") converted most cgroup_get() usages to
cgroup_get_live() leaving cgroup_sk_alloc() the sole user of
cgroup_get().  When !CONFIG_SOCK_CGROUP_DATA, this ends up triggering
unused warning for cgroup_get().

Silence the warning by adding __maybe_unused to cgroup_get().

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Link: http://lkml.kernel.org/r/20170501145340.17e8ef86@canb.auug.org.au
Signed-off-by: Tejun Heo <tj@kernel.org>
---
Applied to cgroup/for-4.12.

Thanks!

 kernel/cgroup/cgroup.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c
index 38d9386..f2bcc11 100644
--- a/kernel/cgroup/cgroup.c
+++ b/kernel/cgroup/cgroup.c
@@ -436,7 +436,7 @@ struct cgroup_subsys_state *cgroup_get_e_css(struct cgroup *cgrp,
 	return css;
 }

-static void cgroup_get(struct cgroup *cgrp)
+static void __maybe_unused cgroup_get(struct cgroup *cgrp)
 {
 	css_get(&cgrp->self);
 }
-- 
2.9.3

Back to linux.kernel | Previous | Next — Previous in thread | Find similar | Unroll thread

Thread

linux-next: build warning after merge of the cgroup tree Stephen Rothwell <sfr@canb.auug.org.au> - 2017-05-01 07:00 +0200
  [PATCH cgroup/for-4.12] cgroup: mark cgroup_get() with __maybe_unused Tejun Heo <tj@kernel.org> - 2017-05-01 21:50 +0200

csiph-web