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| author | Jakub Kicinski <kuba@kernel.org> | 2026-05-26 08:57:19 -0700 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2026-05-28 18:10:03 -0700 |
| commit | 63c4530050d02dfa49b9a6b55cab7f6ac27be50b (patch) | |
| tree | 81df629e0bc0415b0c2f2cc361300081bf428733 /Documentation | |
| parent | 4933a658369ab945873cca8bcbfbbc142ddfe584 (diff) | |
| download | linux-next-history-63c4530050d02dfa49b9a6b55cab7f6ac27be50b.tar.gz | |
docs: net: page_pool: drop reference to removed PP_FLAG_PAGE_FRAG
The flag was removed in commit 09d96ee5674a ("page_pool: remove
PP_FLAG_PAGE_FRAG"), but the documentation still mentions it when
describing fragment usage. Drop the stale reference; the fragment
API does not require any opt-in flag.
Reviewed-by: Nicolai Buchwitz <nb@tipi-net.de>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20260526155722.2790742-2-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/networking/page_pool.rst | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/Documentation/networking/page_pool.rst b/Documentation/networking/page_pool.rst index 9d958128a57cb..6e43e19532183 100644 --- a/Documentation/networking/page_pool.rst +++ b/Documentation/networking/page_pool.rst @@ -98,9 +98,8 @@ If in doubt set ``offset`` to 0, ``max_len`` to ``PAGE_SIZE`` and pass -1 as ``dma_sync_size``. That combination of arguments is always correct. -Note that the syncing parameters are for the entire page. -This is important to remember when using fragments (``PP_FLAG_PAGE_FRAG``), -where allocated buffers may be smaller than a full page. +Note that the syncing parameters are for the **entire page**, even if +the driver allocates fragments (e.g. via ``page_pool_dev_alloc_frag()``). Unless the driver author really understands page pool internals it's recommended to always use ``offset = 0``, ``max_len = PAGE_SIZE`` with fragmented page pools. |