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[ Upstream commitffe2a22562] tls_is_tx_ready() checks that list_first_entry() does not return NULL. This condition can never happen. For empty lists, list_first_entry() returns the list_entry() of the head, which is a type confusion. Use list_first_entry_or_null() which returns NULL in case of empty lists. Fixes:a42055e8d2("net/tls: Add support for async encryption of records for performance") Signed-off-by: Pietro Borrello <borrello@diag.uniroma1.it> Link: https://lore.kernel.org/r/20230128-list-entry-null-check-tls-v1-1-525bbfe6f0d0@diag.uniroma1.it Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Sasha Levin <sashal@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 Restructured Text 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.