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8f2c72f225
If *len is equal to 0 at the beginning of __splice_segment it returns true directly. But when decreasing *len from a positive number to 0 in __splice_segment, it returns false. The __skb_splice_bits needs to call __splice_segment again. Recheck *len if it changes, return true in time. Reduce unnecessary calls to __splice_segment. Signed-off-by: Pengtao He <hept.hept.hept@gmail.com> Reviewed-by: Willem de Bruijn <willemb@google.com> Link: https://patch.msgid.link/20250819021551.8361-1-hept.hept.hept@gmail.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.