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Currently, the class_ops select_queue() implementation on sch_mq returns a pointer to netdev_queue #0 when it receives and invalid qdisc id. That can be misleading since all of mq's inner qdiscs are attached to a valid netdev_queue. Here we fix that by returning NULL when a qdisc id is invalid. This is aligned with how select_queue() is implemented for sch_mqprio in the next patch on this series, keeping a consistent behavior between these two qdiscs. Signed-off-by: Jesus Sanchez-Palencia <jesus.sanchez-palencia@intel.com> Tested-by: Henrik Austad <henrik@austad.us> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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.