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[ Upstream commit00720f0e7f] The mix of IS_ENABLED() and #ifdef checks has left a combination that causes a warning about an unused variable: security/smack/smack_lsm.c: In function 'smack_socket_connect': security/smack/smack_lsm.c:2838:24: error: unused variable 'sip' [-Werror=unused-variable] 2838 | struct sockaddr_in6 *sip = (struct sockaddr_in6 *)sap; Change the code to use C-style checks consistently so the compiler can handle it correctly. Fixes:87fbfffcc8("broken ping to ipv6 linklocal addresses on debian buster") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Casey Schaufler <casey@schaufler-ca.com> 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.