If the device attached to the packet given to enqueue_to_backlog() is not running, we drop the packet. But we accidentally increase sd->dropped, giving false signals to admins: sd->dropped should be reserved to cpu backlog pressure, not to temporary glitches at device dismantles. While we are at it, perform the netif_running() test before we get the rps lock, and use REASON_DEV_READY drop reason instead of NOT_SPECIFIED. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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 reStructuredText 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.
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