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With commit8533b14b3d("eth: mlx4: create a page pool for Rx") mlx4 started using functions guarded by PAGE_POOL. This change introduced build errors when CONFIG_MLX4_EN is set but CONFIG_PAGE_POOL is not: ld: vmlinux.o: in function `mlx4_en_alloc_frags': en_rx.c:(.text+0xa5eaf9): undefined reference to `page_pool_alloc_pages' ld: vmlinux.o: in function `mlx4_en_create_rx_ring': (.text+0xa5ee91): undefined reference to `page_pool_create' Make MLX4_EN select PAGE_POOL to fix the ml;x4 build errors. Fixes:8533b14b3d("eth: mlx4: create a page pool for Rx") Signed-off-by: Greg Thelen <gthelen@google.com> Reviewed-by: Joe Damato <jdamato@fastly.com> Link: https://patch.msgid.link/20250401015315.2306092-1-gthelen@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 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.