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Call traces are being seen that result from a nodelist structure ref counting error. They are typically seen after transmission of an LS_RJT ELS response. Aged code in lpfc_cmpl_els_rsp() calls lpfc_nlp_not_used() which, if the ndlp reference count is exactly 1, will decrement the reference count. Previously lpfc_nlp_put() was within lpfc_els_free_iocb(), and the 'put' within the free would only be invoked if cmdiocb->context1 was not NULL. Since the nodelist structure reference count is decremented when exiting lpfc_cmpl_els_rsp() the lpfc_nlp_not_used() calls are no longer required. Calling them is causing the reference count issue. Fix by removing the lpfc_nlp_not_used() calls. Link: https://lore.kernel.org/r/20210412013127.2387-4-jsmart2021@gmail.com Co-developed-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.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.