• Alexander Usyskin's avatar
    mei: exclude device from suspend direct complete optimization · 557909e1
    Alexander Usyskin authored
    
    
    MEI device performs link reset during system suspend sequence.
    The link reset cannot be performed while device is in
    runtime suspend state. The resume sequence is bypassed with
    suspend direct complete optimization,so the optimization should be
    disabled for mei devices.
    
    Fixes:
     [  192.940537] Restarting tasks ...
     [  192.940610] PGI is not set
     [  192.940619] ------------[ cut here ]------------ [  192.940623]
     WARNING: CPU: 0
     me.c:653 mei_me_pg_exit_sync+0x351/0x360 [  192.940624] Modules
     linked
     in:
     [  192.940627] CPU: 0 PID: 1661 Comm: kworker/0:3 Not tainted
     4.13.0-rc2+
     #2 [  192.940628] Hardware name: Dell Inc. XPS 13 9343/0TM99H, BIOS
     A11
     12/08/2016 [  192.940630] Workqueue: pm pm_runtime_work <snip> [
     192.940642] Call Trace:
     [  192.940646]  ? pci_pme_active+0x1de/0x1f0 [  192.940649]  ?
     pci_restore_standard_config+0x50/0x50
     [  192.940651]  ? kfree+0x172/0x190
     [  192.940653]  ? kfree+0x172/0x190
     [  192.940655]  ? pci_restore_standard_config+0x50/0x50
     [  192.940663]  mei_me_pm_runtime_resume+0x3f/0xc0
     [  192.940665]  pci_pm_runtime_resume+0x7a/0xa0 [  192.940667]
     __rpm_callback+0xb9/0x1e0 [  192.940668]  ?
     preempt_count_add+0x6d/0xc0 [  192.940670]  rpm_callback+0x24/0x90 [
     192.940672]  ? pci_restore_standard_config+0x50/0x50
     [  192.940674]  rpm_resume+0x4e8/0x800 [  192.940676]
     pm_runtime_work+0x55/0xb0 [  192.940678]
     process_one_work+0x184/0x3e0 [  192.940680]
     worker_thread+0x4d/0x3a0 [ 192.940681]  ?
     preempt_count_sub+0x9b/0x100 [  192.940683]
     kthread+0x122/0x140 [  192.940684]  ? process_one_work+0x3e0/0x3e0 [
     192.940685]  ? __kthread_create_on_node+0x1a0/0x1a0
     [  192.940688]  ret_from_fork+0x27/0x40 [  192.940690] Code: 96 3a
     9e ff 48 8b 7d 98 e8 cd 21 58 00 83 bb bc 01 00 00
     04 0f 85 40 fe ff ff e9 41 fe ff ff 48 c7 c7 5f 04 99 96 e8 93 6b 9f
     ff <0f> ff e9 5d fd ff ff e8 33 fe 99 ff 0f 1f 00 0f 1f 44 00 00 55
     [  192.940719] ---[ end trace
     a86955597774ead8 ]--- [  192.942540] done.
    Suggested-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
    Reported-by: default avatarDominik Brodowski <linux@dominikbrodowski.net>
    Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
    Cc: Dominik Brodowski <linux@dominikbrodowski.net>
    Signed-off-by: default avatarAlexander Usyskin <alexander.usyskin@intel.com>
    Signed-off-by: default avatarTomas Winkler <tomas.winkler@intel.com>
    Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
    557909e1
pci-txe.c 9.45 KB