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<title>linux-dev/arch/alpha/include/uapi/asm/kvm_para.h, branch linus/master</title>
<subtitle>Linux kernel development work - see feature branches</subtitle>
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<updated>2019-03-28T16:27:42Z</updated>
<entry>
<title>KVM: export &lt;linux/kvm_para.h&gt; and &lt;asm/kvm_para.h&gt; iif KVM is supported</title>
<updated>2019-03-28T16:27:42Z</updated>
<author>
<name>Masahiro Yamada</name>
<email>yamada.masahiro@socionext.com</email>
</author>
<published>2019-03-18T09:08:12Z</published>
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<id>urn:sha1:3d9683cf3bfb6d4e4605a153958dfca7e18b52f2</id>
<content type='text'>
I do not see any consistency about headers_install of &lt;linux/kvm_para.h&gt;
and &lt;asm/kvm_para.h&gt;.

According to my analysis of Linux 5.1-rc1, there are 3 groups:

 [1] Both &lt;linux/kvm_para.h&gt; and &lt;asm/kvm_para.h&gt; are exported

    alpha, arm, hexagon, mips, powerpc, s390, sparc, x86

 [2] &lt;asm/kvm_para.h&gt; is exported, but &lt;linux/kvm_para.h&gt; is not

    arc, arm64, c6x, h8300, ia64, m68k, microblaze, nios2, openrisc,
    parisc, sh, unicore32, xtensa

 [3] Neither &lt;linux/kvm_para.h&gt; nor &lt;asm/kvm_para.h&gt; is exported

    csky, nds32, riscv

This does not match to the actual KVM support. At least, [2] is
half-baked.

Nor do arch maintainers look like they care about this. For example,
commit 0add53713b1c ("microblaze: Add missing kvm_para.h to Kbuild")
exported &lt;asm/kvm_para.h&gt; to user-space in order to fix an in-kernel
build error.

We have two ways to make this consistent:

 [A] export both &lt;linux/kvm_para.h&gt; and &lt;asm/kvm_para.h&gt; for all
     architectures, irrespective of the KVM support

 [B] Match the header export of &lt;linux/kvm_para.h&gt; and &lt;asm/kvm_para.h&gt;
     to the KVM support

My first attempt was [A] because the code looks cleaner, but Paolo
suggested [B].

So, this commit goes with [B].

For most architectures, &lt;asm/kvm_para.h&gt; was moved to the kernel-space.
I changed include/uapi/linux/Kbuild so that it checks generated
asm/kvm_para.h as well as check-in ones.

After this commit, there will be two groups:

 [1] Both &lt;linux/kvm_para.h&gt; and &lt;asm/kvm_para.h&gt; are exported

    arm, arm64, mips, powerpc, s390, x86

 [2] Neither &lt;linux/kvm_para.h&gt; nor &lt;asm/kvm_para.h&gt; is exported

    alpha, arc, c6x, csky, h8300, hexagon, ia64, m68k, microblaze,
    nds32, nios2, openrisc, parisc, riscv, sh, sparc, unicore32, xtensa

Signed-off-by: Masahiro Yamada &lt;yamada.masahiro@socionext.com&gt;
Acked-by: Cornelia Huck &lt;cohuck@redhat.com&gt;
Signed-off-by: Paolo Bonzini &lt;pbonzini@redhat.com&gt;
</content>
</entry>
<entry>
<title>License cleanup: add SPDX license identifier to uapi header files with no license</title>
<updated>2017-11-02T10:19:54Z</updated>
<author>
<name>Greg Kroah-Hartman</name>
<email>gregkh@linuxfoundation.org</email>
</author>
<published>2017-11-01T14:08:43Z</published>
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<id>urn:sha1:6f52b16c5b29b89d92c0e7236f4655dc8491ad70</id>
<content type='text'>
Many user space API headers are missing licensing information, which
makes it hard for compliance tools to determine the correct license.

By default are files without license information under the default
license of the kernel, which is GPLV2.  Marking them GPLV2 would exclude
them from being included in non GPLV2 code, which is obviously not
intended. The user space API headers fall under the syscall exception
which is in the kernels COPYING file:

   NOTE! This copyright does *not* cover user programs that use kernel
   services by normal system calls - this is merely considered normal use
   of the kernel, and does *not* fall under the heading of "derived work".

otherwise syscall usage would not be possible.

Update the files which contain no license information with an SPDX
license identifier.  The chosen identifier is 'GPL-2.0 WITH
Linux-syscall-note' which is the officially assigned identifier for the
Linux syscall exception.  SPDX license identifiers are a legally binding
shorthand, which can be used instead of the full boiler plate text.

This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.  See the previous patch in this series for the
methodology of how this patch was researched.

Reviewed-by: Kate Stewart &lt;kstewart@linuxfoundation.org&gt;
Reviewed-by: Philippe Ombredanne &lt;pombredanne@nexb.com&gt;
Reviewed-by: Thomas Gleixner &lt;tglx@linutronix.de&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
</entry>
<entry>
<title>UAPI: (Scripted) Disintegrate arch/alpha/include/asm</title>
<updated>2012-12-17T14:12:19Z</updated>
<author>
<name>David Howells</name>
<email>dhowells@redhat.com</email>
</author>
<published>2012-12-17T13:47:09Z</published>
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<content type='text'>
Signed-off-by: David Howells &lt;dhowells@redhat.com&gt;
Acked-by: Arnd Bergmann &lt;arnd@arndb.de&gt;
Acked-by: Thomas Gleixner &lt;tglx@linutronix.de&gt;
Acked-by: Michael Kerrisk &lt;mtk.manpages@gmail.com&gt;
Acked-by: Paul E. McKenney &lt;paulmck@linux.vnet.ibm.com&gt;
Acked-by: Dave Jones &lt;davej@redhat.com&gt;
Acked-by: Michael Cree &lt;mcree@orcon.net.nz&gt;
Acked-by: Matt Turner &lt;mattst88@gmail.com&gt;
</content>
</entry>
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