From 885f123554bbdc1807ca25a374be6e9b3bddf4de Mon Sep 17 00:00:00 2001
From: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Date: Tue, 17 Mar 2020 08:22:13 +0200
Subject: [PATCH] intel_th: msu: Fix the unexpected state warning
Git-commit: 885f123554bbdc1807ca25a374be6e9b3bddf4de
Patch-mainline: v5.6-rc7
References: jsc#SLE-12705
The unexpected state warning should only warn on illegal state
transitions. Fix that.
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Fixes: 615c164da0eb4 ("intel_th: msu: Introduce buffer interface")
Cc: stable@vger.kernel.org # v5.4+
Link: https://lore.kernel.org/r/20200317062215.15598-5-alexander.shishkin@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/hwtracing/intel_th/msu.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/hwtracing/intel_th/msu.c b/drivers/hwtracing/intel_th/msu.c
index 8e48c7458aa3..43e70507c949 100644
--- a/drivers/hwtracing/intel_th/msu.c
+++ b/drivers/hwtracing/intel_th/msu.c
@@ -718,9 +718,6 @@ static int msc_win_set_lockout(struct msc_window *win,
if (old != expect) {
ret = -EINVAL;
- dev_warn_ratelimited(msc_dev(win->msc),
- "expected lockout state %d, got %d\n",
- expect, old);
goto unlock;
}
@@ -741,6 +738,10 @@ static int msc_win_set_lockout(struct msc_window *win,
/* from intel_th_msc_window_unlock(), don't warn if not locked */
if (expect == WIN_LOCKED && old == new)
return 0;
+
+ dev_warn_ratelimited(msc_dev(win->msc),
+ "expected lockout state %d, got %d\n",
+ expect, old);
}
return ret;
--
2.16.4