This is a note to let you know that I've just added the patch titled cgroup: mark cgroup_get() with __maybe_unused to the 4.11-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: cgroup-mark-cgroup_get-with-__maybe_unused.patch and it can be found in the queue-4.11 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 310b4816a5d8082416b4ab83e5a7b3cb92883a4d Mon Sep 17 00:00:00 2001 From: Tejun Heo <tj@xxxxxxxxxx> Date: Mon, 1 May 2017 15:24:14 -0400 Subject: cgroup: mark cgroup_get() with __maybe_unused From: Tejun Heo <tj@xxxxxxxxxx> commit 310b4816a5d8082416b4ab83e5a7b3cb92883a4d upstream. 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@xxxxxxxxxxxxxxxx> Link: http://lkml.kernel.org/r/20170501145340.17e8ef86@xxxxxxxxxxxxxxxx Signed-off-by: Tejun Heo <tj@xxxxxxxxxx> Cc: Arnd Bergmann <arnd@xxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- kernel/cgroup/cgroup.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/kernel/cgroup/cgroup.c +++ b/kernel/cgroup/cgroup.c @@ -436,7 +436,7 @@ out_unlock: return css; } -static void cgroup_get(struct cgroup *cgrp) +static void __maybe_unused cgroup_get(struct cgroup *cgrp) { css_get(&cgrp->self); } Patches currently in stable-queue which might be from tj@xxxxxxxxxx are queue-4.11/cgroup-mark-cgroup_get-with-__maybe_unused.patch queue-4.11/cpuset-consider-dying-css-as-offline.patch queue-4.11/revert-ata-sata_mv-convert-to-devm_ioremap_resource.patch queue-4.11/block-avoid-that-blk_exit_rl-triggers-a-use-after-free.patch queue-4.11/cgroup-prevent-kill_css-from-being-called-more-than-once.patch queue-4.11/ahci-acer-sa5-271-ssd-not-detected-fix.patch