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Juergen Gross 0901f5fe2a x86/xen: Fix sparse warning in enlighten_pv.c 
[ Upstream commit e5aff444e3 ]

The sparse tool issues a warning for arch/x76/xen/enlighten_pv.c:

   arch/x86/xen/enlighten_pv.c:120:9: sparse: sparse: incorrect type
     in initializer (different address spaces)
     expected void const [noderef] __percpu *__vpp_verify
     got bool *

This is due to the percpu variable xen_in_preemptible_hcall being
exported via EXPORT_SYMBOL_GPL() instead of EXPORT_PER_CPU_SYMBOL_GPL().

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202512140856.Ic6FetG6-lkp@intel.com/
Fixes: fdfd811ddd ("x86/xen: allow privcmd hypercalls to be preempted")
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Message-ID: <20251215115112.15072-1-jgross@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2026-01-02 12:56:53 +01:00
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README 

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.