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A stray+extraneous 'netif_napi_add()' that we were doing in visornic_probe() was causing havoc when we got into visornic_remove(), called during 'modprobe -r visornic'. The symptom was a processor busy-wait loop on the modprobe process, which '/proc/<pid>/stack' would show looping doing napi things. Presumably the stray line got there as a result of some merging snafoo, and has been deleted to fix the problem. With this patch 'modprobe -r visornic' and a subsequent 'modprobe visornic' both complete successfully, and result in an operational network. Signed-off-by: Tim Sell <Timothy.Sell@unisys.com> Signed-off-by: David Kershner <david.kershner@unisys.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. 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.