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b127e355f1
Support devmem Tx. We already use skb_frag_dma_map(), we just need to make sure we don't try to unmap the frags. Check if frag is unreadable and mark the ring entry. # ./tools/testing/selftests/drivers/net/hw/devmem.py TAP version 13 1..3 ok 1 devmem.check_rx ok 2 devmem.check_tx ok 3 devmem.check_tx_chunks # Totals: pass:3 fail:0 xfail:0 xpass:0 skip:0 error:0 Acked-by: Mina Almasry <almasrymina@google.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org> Link: https://patch.msgid.link/20250916145401.1464550-1-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.