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53fcc7dbf1
check_image_bootable() has been introduced with commit627c9b6205("s390/boot: block uncompressed vmlinux booting attempts") to make sure that users don't try to boot uncompressed vmlinux ELF image in qemu. It used to be possible quite some time ago. That commit prevented confusion with uncompressed vmlinux image starting to boot and even printing kernel messages until it crashed. Users might have tried to report the problem without realizing they are doing something which was not intended. Since commitf1d3c53237("s390/boot: move sclp early buffer from fixed address in asm to C") check_image_bootable() doesn't function properly anymore, as well as booting uncompressed vmlinux image in qemu doesn't really produce any output and crashes. Moving forward it doesn't make sense to fix check_image_bootable() anymore, so simply remove it. Acked-by: Alexander Gordeev <agordeev@linux.ibm.com> Acked-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
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.