Heiko Carstens e3850ecfc1 s390/cpumf: get rid of variable length array
The stcctm5 inline assembly uses a variable length array to specify
the memory that is written to.  According to the gcc manual this trick
only works if the length is known at compile time. This is not the the
case for the stccm5 inline assembly.

Therefore simply use a full memory clobber. As requested by Martin
also move the output Q constraint operand to the input operands list,
since all we want is that the compiler generates an instruction that
may use the displacement field: in other words we only need the
address of *val. That the inline assembly actually writes to an array
starting at val is taken care of with the memory clobber.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2017-01-16 07:27:51 +01:00
2017-01-11 19:49:27 +01:00
2005-09-10 10:06:29 -07:00
2016-05-23 17:04:14 -07:00
2017-01-14 11:09:24 -08:00
2017-01-15 16:21:59 -08:00

Linux kernel
============

This file was moved to Documentation/admin-guide/README.rst

Please notice that there are several guides for kernel developers and users.
These guides can be rendered in a number of formats, like HTML and PDF.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.

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.
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