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99ee28d996
After using get_random_bytes(), you want to wipe the buffer afterward so the seed remains secret. In this case, we can eliminate the temporary buffer entirely. fdt_setprop_placeholder() returns a pointer to the property value buffer, allowing us to put the random data directly in there without using a temporary buffer at all. Faster and less stack all in one. Signed-off-by: George Spelvin <lkml@sdf.org> Acked-by: Will Deacon <will@kernel.org> Cc: Hsin-Yi Wang <hsinyi@chromium.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: linux-arm-kernel@lists.infradead.org Link: https://lore.kernel.org/r/20200330173801.GA9199@SDF.ORG Signed-off-by: Will Deacon <will@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.