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Message-ID: <201606161503.RiiQNvfT%fengguang.wu@intel.com>
Date: Thu, 16 Jun 2016 15:16:09 +0800
From: kbuild test robot <lkp@...el.com>
To: DingXiang <dingxiang@...wei.com>
Cc: kbuild-all@...org, tj@...nel.org, jejb@...ux.vnet.ibm.com,
martin.petersen@...cle.com, fangwei1@...wei.com,
miaoxie@...wei.com, wangyijing@...wei.com, zhangaihua1@...wei.com,
zhaohongjiang@...wei.com, houtao1@...wei.com,
linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org,
dingxiang@...wei.com
Subject: Re: [PATCH V2] libata:fix kernel panic when hotplug
Hi,
[auto build test WARNING on tj-libata/for-next]
[also build test WARNING on v4.7-rc3 next-20160616]
[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-s5-06161418 (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 warnings (new ones prefixed by >>):
In file included from include/linux/linkage.h:4:0,
from include/linux/kernel.h:6,
from drivers/ata/libata-eh.c:35:
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))
^
include/linux/compiler.h:151:30: note: in definition of macro '__trace_if'
if (__builtin_constant_p(!!(cond)) ? !!(cond) : \
^~~~
>> drivers/ata/libata-eh.c:819:7: note: in expansion of macro 'if'
else if ((ap->pflags & ATA_PFLAG_SCSI_HOTPLUG) &&
^~
drivers/ata/libata-eh.c:820:19: note: each undeclared identifier is reported only once for each function it appears in
!(ap->pflags & ATA_PFLAG_SAS_HOST))
^
include/linux/compiler.h:151:30: note: in definition of macro '__trace_if'
if (__builtin_constant_p(!!(cond)) ? !!(cond) : \
^~~~
>> drivers/ata/libata-eh.c:819:7: note: in expansion of macro 'if'
else if ((ap->pflags & ATA_PFLAG_SCSI_HOTPLUG) &&
^~
vim +/if +819 drivers/ata/libata-eh.c
803 ap->ops->end_eh(ap);
804
805 spin_unlock_irqrestore(ap->lock, flags);
806 ata_eh_release(ap);
807 } else {
808 WARN_ON(ata_qc_from_tag(ap, ap->link.active_tag) == NULL);
809 ap->ops->eng_timeout(ap);
810 }
811
812 scsi_eh_flush_done_q(&ap->eh_done_q);
813
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)
824 ata_port_info(ap, "EH complete\n");
825
826 ap->pflags &= ~(ATA_PFLAG_SCSI_HOTPLUG | ATA_PFLAG_RECOVERED);
827
---
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