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[ Upstream commitd52bcb47bd] This patch allows to use 0 for `coal->rx_coalesce_usecs` param to disable rx irq coalescing. Previously we could enable rx irq coalescing via ethtool (For ex: `ethtool -C eth0 rx-usecs 2000`) but we couldn't disable it because this part rejects 0 value: if (!coal->rx_coalesce_usecs) return -EINVAL; Fixes:84da2658a6("TI DaVinci EMAC : Implement interrupt pacing functionality.") Signed-off-by: Maxim Kiselev <bigunclemax@gmail.com> Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com> Link: https://lore.kernel.org/r/20211101152343.4193233-1-bigunclemax@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
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.