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Sebastian Andrzej Siewior says: ==================== in_interrupt() cleanup, part 2 in the discussion about preempt count consistency across kernel configurations: https://lore.kernel.org/r/20200914204209.256266093@linutronix.de/ Linus clearly requested that code in drivers and libraries which changes behaviour based on execution context should either be split up so that e.g. task context invocations and BH invocations have different interfaces or if that's not possible the context information has to be provided by the caller which knows in which context it is executing. This includes conditional locking, allocation mode (GFP_*) decisions and avoidance of code paths which might sleep. In the long run, usage of 'preemptible, in_*irq etc.' should be banned from driver code completely. This is part two addressing remaining drivers except for orinoco-usb. ==================== Cherry picking only Ethernet changes. Link: https://lore.kernel.org/r/20201027225454.3492351-1-bigeasy@linutronix.de Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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| README | ||
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.