[Bug 216352] New: [BISECTED] 250 ms system suspend performance regression

[bugzilla-daemon@kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=216352

            Bug ID: 216352
           Summary: [BISECTED] 250 ms system suspend performance
                    regression
           Product: Drivers
           Version: 2.5
    Kernel Version: 5.19
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Bluetooth
          Assignee: linux-bluetooth@vger.kernel.org
          Reporter: lenb@kernel.org
        Regression: No

My skylake laptop suspends with median performance of 427 ms
up through 5.19-rc8.

After this commit, median performance slows to 684 ms in 5.19.0.

ef61b6ea154464fefd8a6712d7a3b43b445c3d4a is the first bad commit
commit ef61b6ea154464fefd8a6712d7a3b43b445c3d4a
Author: Abhishek Pandit-Subedi <abhishekpandit@chromium.org>
Date:   Mon Jul 25 15:34:21 2022 -0700

    Bluetooth: Always set event mask on suspend

    When suspending, always set the event mask once disconnects are
    successful. Otherwise, if wakeup is disallowed, the event mask is not
    set before suspend continues and can result in an early wakeup.

    Fixes: 182ee45da083 ("Bluetooth: hci_sync: Rework hci_suspend_notifier")
    Cc: stable@vger.kernel.org
    Signed-off-by: Abhishek Pandit-Subedi <abhishekpandit@chromium.org>
    Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>

 net/bluetooth/hci_sync.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

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