93a3922da4
During remote port loss fault testing, the driver crashed with the following trace: general protection fault: 0000 [#1] SMP RIP: ... lpfc_nvme_register_port+0x250/0x480 [lpfc] Call Trace: lpfc_nlp_state_cleanup+0x1b3/0x7a0 [lpfc] lpfc_nlp_set_state+0xa6/0x1d0 [lpfc] lpfc_cmpl_prli_prli_issue+0x213/0x440 lpfc_disc_state_machine+0x7e/0x1e0 [lpfc] lpfc_cmpl_els_prli+0x18a/0x200 [lpfc] lpfc_sli_sp_handle_rspiocb+0x3b5/0x6f0 [lpfc] lpfc_sli_handle_slow_ring_event_s4+0x161/0x240 [lpfc] lpfc_work_done+0x948/0x14c0 [lpfc] lpfc_do_work+0x16f/0x180 [lpfc] kthread+0xc9/0xe0 ret_from_fork+0x55/0x80 After registering a new remoteport, the driver is pulling an ndlp pointer from the lpfc rport associated with the private area of a newly registered remoteport. The private area is uninitialized, so it's garbage. Correct by pulling the the lpfc rport pointer from the entering ndlp point, then ndlp value from at rport. Note the entering ndlp may be replacing by the rport->ndlp due to an address change swap. 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>
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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.