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228add34dc
Separate __user pointer variable declaration from kernel one.
There are two 'kvm_cpuid2' pointers involved here. There's an "input"
side: 'td_cpuid' which is a normal kernel pointer and an 'output'
side. The output here is userspace and there is an attempt at properly
annotating the variable with __user:
struct kvm_cpuid2 __user *output, *td_cpuid;
But, alas, this is wrong. The __user in the definition applies to both
'output' and 'td_cpuid'. Sparse notices the address space mismatch and
will complain about it.
Fix it up by completely separating the two definitions so that it is
obviously correct without even having to know what the C syntax rules
even are.
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Fixes:
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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 reStructuredText 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.