56ef27e3 unexported page_pool_unlink_napi() and renamed it to page_pool_disable_direct_recycling(). This is because there was no in-tree user of page_pool_unlink_napi(). Since then Rx queue API and an implementation in bnxt got merged. In the bnxt implementation, it broadly follows the following steps: allocate new queue memory + page pool, stop old rx queue, swap, then destroy old queue memory + page pool. The existing NAPI instance is re-used so when the old page pool that is no longer used but still linked to this shared NAPI instance is destroyed, it will trigger warnings. In my initial patches I unlinked a page pool from a NAPI instance directly. Instead, export page_pool_disable_direct_recycling() and call that instead to avoid having a driver touch a core struct. Suggested-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David Wei <dw@davidwei.uk> Reviewed-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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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