Hi,

[auto build test ERROR on tj-libata/for-next]
[also build test ERROR on v4.7-rc3 next-20160615]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/DingXiang/libata-fix-kernel-panic-when-hotplug/20160616-105155
base:   https://git.kernel.org/pub/scm/linux/kernel/git/tj/libata for-next
config: x86_64-randconfig-s5-06161042 (attached as .config)
compiler: gcc-6 (Debian 6.1.1-1) 6.1.1 20160430
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All errors (new ones prefixed by >>):

   drivers/ata/libata-eh.c: In function 'ata_scsi_port_error_handler':
>> drivers/ata/libata-eh.c:820:19: error: 'ATA_PFLAG_SAS_HOST' undeclared (first use in this function)
       !(ap->pflags & ATA_PFLAG_SAS_HOST))
                      ^~~~~~~~~~~~~~~~~~
   drivers/ata/libata-eh.c:820:19: note: each undeclared identifier is reported only once for each function it appears in

vim +/ATA_PFLAG_SAS_HOST +820 drivers/ata/libata-eh.c

   814		/* clean up */
   815		spin_lock_irqsave(ap->lock, flags);
   816	
   817		if (ap->pflags & ATA_PFLAG_LOADING)
   818			ap->pflags &= ~ATA_PFLAG_LOADING;
   819		else if ((ap->pflags & ATA_PFLAG_SCSI_HOTPLUG) &&
 > 820			 !(ap->pflags & ATA_PFLAG_SAS_HOST))
   821			schedule_delayed_work(&ap->hotplug_task, 0);
   822	
   823		if (ap->pflags & ATA_PFLAG_RECOVERED)

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