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4aede550f1
iMX6 needs to write some code to OCRAM which resumes the DDR controller after suspend. However, merely using __arm_ioremap_exec() causes the kernel to complain of a W+X mapping. Solve this by using the newly introduced __arm_iomem_set_ro() function to prevent inadvertent or malicious writes to code we may later execute. Tested-by: Fabio Estevam <festevam@gmail.com> Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
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.