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s390/protvirt: fix compilation issue

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The kernel fails to compile with CONFIG_PROTECTED_VIRTUALIZATION_GUEST
set but CONFIG_KVM unset.

This patch fixes the issue by making the needed variable always available.

Link: https://lkml.kernel.org/r/20200423120114.2027410-1-imbrenda@linux.ibm.com
Fixes: a0f60f8431 ("s390/protvirt: Add sysfs firmware interface for Ultravisor information")
Reported-by: kbuild test robot <lkp@intel.com>
Reported-by: Philipp Rudo <prudo@linux.ibm.com>
Suggested-by: Philipp Rudo <prudo@linux.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Vasily Gorbik <gor@linux.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
This commit is contained in:
Claudio Imbrenda 2020-04-23 14:01:14 +02:00 committed by Vasily Gorbik
parent 86dbf32da1
commit 673deb0beb
2 changed files with 2 additions and 3 deletions
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2
arch/s390/boot/uv.c
View File

@ -7,9 +7,7 @@
#ifdef CONFIG_PROTECTED_VIRTUALIZATION_GUEST
int __bootdata_preserved(prot_virt_guest);
#endif
#if IS_ENABLED(CONFIG_KVM)
struct uv_info __bootdata_preserved(uv_info);
#endif
void uv_query_info(void)
{

3
arch/s390/kernel/uv.c
View File

@ -23,10 +23,11 @@
int __bootdata_preserved(prot_virt_guest);
#endif
struct uv_info __bootdata_preserved(uv_info);
#if IS_ENABLED(CONFIG_KVM)
int prot_virt_host;
EXPORT_SYMBOL(prot_virt_host);
struct uv_info __bootdata_preserved(uv_info);
EXPORT_SYMBOL(uv_info);
static int __init prot_virt_setup(char *val)