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Mainline Linux tree for various devices, only for fun :)
358e78b5f4
After a new NAPI_STATE_MISSED state was added to NAPI we can get into this state and in such case we have to reschedule NAPI as some work is still pending and we have to process it. napi_complete_done() function returns false if we have to reschedule something (e.g. in case we were in MISSED state) as current polling have not been completed yet. nps_enet driver hasn't been verifying the return value of napi_complete_done() and has been forcibly enabling interrupts. That is not correct as we should not enable interrupts before we have processed all scheduled work. As a result we were getting trapped in interrupt hanlder chain as we had never been able to disabale ethernet interrupts again. So this patch makes nps_enet_poll() func verify return value of napi_complete_done() and enable interrupts only in case all scheduled work has been completed. Signed-off-by: Vlad Zakharov <vzakhar@synopsys.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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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.