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James Smart a70e63eee1 scsi: lpfc: Fix NPIV Fabric Node reference counting
While testing initiator-side cable swaps with NPIV, oops occur.  The
reference counts for the Fabric nodes on the NPIV vports isn't balanced,
resulting in premature node removal.

The following fixes were made:

 - Removed the FC_LBIT check in lpfc_linkup_port. This removed the special
   case for vports that didn't have them clean up just like the physical
   port.

 - Removed the unreg_rpi call in lpfc_cleanup_node. In this section, the
   node is being removed in the context of a reference count release and a
   mailbox command can't be issued at this point.

 - Remove special case handling in the default mailbox completion handler
   that allowed the skipping of a node reference. Now, reference counting
   always requires the removal of the reference.

 - Move the location of the DEVICE_RM event is done during LOGO handling as
   the driver has additional work to do on the ndlp before puts/releases
   can be performed.

Link: https://lore.kernel.org/r/20201115192646.12977-10-james.smart@broadcom.com
Co-developed-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-11-17 00:43:55 -05:00
arch
block scsi: block: Return status code in blk_mq_end_request() 2020-11-10 22:58:11 -05:00
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drivers scsi: lpfc: Fix NPIV Fabric Node reference counting 2020-11-17 00:43:55 -05:00
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include scsi: ufs: Add DeepSleep feature 2020-11-04 23:03:28 -05:00
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MAINTAINERS scsi: MAINTAINERS: Make Bodo target_core_user maintainer 2020-11-10 22:35:55 -05:00
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Linux kernel
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There are several guides for kernel developers and users. These guides can
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In order to build the documentation, use ``make htmldocs`` or
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There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
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