linux-kernel - [PATCH ] drivers/base: cacheinfo: remove warning in resume

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Date:   Mon, 29 Aug 2016 12:50:54 +0530
From:   Sumit Gupta <sumitg@...dia.com>
To:     <gregkh@...uxfoundation.org>, <linux-kernel@...r.kernel.org>
CC:     <bbasu@...dia.com>, <linux-tegra@...r.kernel.org>,
        <sudeep.holla@....com>, Sumit Gupta <sumitg@...dia.com>
Subject: [PATCH ] drivers/base: cacheinfo: remove warning in resume

CPU notifier is present for creating device
entries for child node "cache" under parent
node "cpu" as per DT. During resume from
suspend, while booting all non-boot CPU's,
this notifier for adding cache device gets
called before cpu device is added by
device_resume. Because of this warning message
of "parent should not be sleeping" comes during
resume.

Removing the notifier to explicitly add/remove
cache device as CPU and cache device get
added/removed anyway as part of normal suspend
resume sequence.
dpm_resume_end - > dpm_resume -> device_resume

Signed-off-by: Sumit Gupta <sumitg@...dia.com>
---
 drivers/base/cacheinfo.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/base/cacheinfo.c b/drivers/base/cacheinfo.c
index e9fd32e91668..17d9c051a16f 100644
--- a/drivers/base/cacheinfo.c
+++ b/drivers/base/cacheinfo.c
@@ -544,8 +544,6 @@ static int __init cacheinfo_sysfs_init(void)
 			goto out;
 		}
 	}
-	__hotcpu_notifier(cacheinfo_cpu_callback, 0);
-
 out:
 	cpu_notifier_register_done();
 	return rc;
-- 
2.1.4