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KVM: selftests: Silence compiler warning in the kvm_page_table_test

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[ Upstream commit 266a19a0bc4fbfab4d981a47640ca98972a01865 ]

When compiling kvm_page_table_test.c, I get this compiler warning
with gcc 11.2:

kvm_page_table_test.c: In function 'pre_init_before_test':
../../../../tools/include/linux/kernel.h:44:24: warning: comparison of
 distinct pointer types lacks a cast
   44 |         (void) (&_max1 == &_max2);              \
      |                        ^~
kvm_page_table_test.c:281:21: note: in expansion of macro 'max'
  281 |         alignment = max(0x100000, alignment);
      |                     ^~~

Fix it by adjusting the type of the absolute value.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Message-Id: <20220414103031.565037-1-thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Thomas Huth 2022-04-14 12:30:31 +02:00 committed by Greg Kroah-Hartman
parent 119a65a465
commit 067f2fbe4a
1 changed files with 1 additions and 1 deletions
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2
tools/testing/selftests/kvm/kvm_page_table_test.c
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@ -278,7 +278,7 @@ static struct kvm_vm *pre_init_before_test(enum vm_guest_mode mode, void *arg)
else
guest_test_phys_mem = p->phys_offset;
#ifdef __s390x__
alignment = max(0x100000, alignment);
alignment = max(0x100000UL, alignment);
#endif
guest_test_phys_mem &= ~(alignment - 1);