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The driver's error recovery reset sequence can take many seconds to
complete and only the critical sections are protected by rtnl_lock.
A recent change has introduced a regression in this sequence.
bnxt_remove_one() may be called while the recovery is in progress.
Normally, unregister_netdev() would cause bnxt_close_nic() to be
called and this would cause the error recovery to safely abort
with the BNXT_STATE_ABORT_ERR flag set in bnxt_close_nic().
Recently, we added bnxt_reinit_after_abort() to allow the user to
reopen the device after an aborted recovery. This causes the
regression in the scenario described above because we would
attempt to re-open even after the netdev has been unregistered.
Fix it by checking the netdev reg_state in
bnxt_reinit_after_abort() and abort if it is unregistered.
Fixes:
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|---|---|---|
| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
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.