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Eric Dumazet
b32e8fbeac
Use DO_ONCE_LITE_IF() and __cold attribute to put tcp_gro_dev_warn() out of line. This also allows the message to be printed again after a "echo 1 > /sys/kernel/debug/clear_warn_once" Also add a READ_ONCE() when reading device mtu, as it could be changed concurrently. Signed-off-by: Eric Dumazet <edumazet@google.com> Link: https://lore.kernel.org/r/20231130184135.4130860-1-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@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.