mirror of
https://github.com/hardkernel/linux.git
synced 2026-06-09 04:10:18 +09:00
b33a103956
commit5b35047eb4upstream. When both the paes and the pkey kernel module are statically build into the kernel, the paes cipher selftests run before the pkey kernel module is initialized. So a static variable set in the pkey init function and used in the pkey_clr2protkey function is not initialized when the paes cipher's selftests request to call pckmo for transforming a clear key value into a protected key. This patch moves the initial setup of the static variable into the function pck_clr2protkey. So it's possible, to use the function for transforming a clear to a protected key even before the pkey init function has been called and the paes selftests may run successful. Reported-by: Alexander Egorenkov <Alexander.Egorenkov@ibm.com> Cc: <stable@vger.kernel.org> # 4.20 Fixes:f822ad2c2c("s390/pkey: move pckmo subfunction available checks away from module init") Signed-off-by: Harald Freudenberger <freude@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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.