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In the following scsi_host_template and sas_function_template callback functions the driver does not have PhysicalPort number information to retrieve the sas_device object using SAS Address & PhysicalPort number. In these callback functions the device's rphy object is used to retrieve sas_device object for the device. .target_alloc, .get_enclosure_identifier .get_bay_identifier When a rphy (of type sas_rphy) object is allocated then its address is saved in corresponding sas_device object's rphy field. In __mpt3sas_get_sdev_by_rphy(), the driver loops over all the sas_device objects from sas_device_list list to retrieve the sas_device objects whose rphy matches the provided rphy. Link: https://lore.kernel.org/r/20201027130847.9962-8-sreekanth.reddy@broadcom.com Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
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
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.