[PATCH v5 1/2] sysemu: tpm: Add a stub function for TPM_IS_CRB

[Eric Auger <eric.auger@redhat.com>]

In a subsequent patch, VFIO will need to recognize if
a memory region owner is a TPM CRB device. Hence VFIO
needs to use TPM_IS_CRB() even if CONFIG_TPM is unset. So
let's add a stub function.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
Suggested-by: Cornelia Huck <cohuck@redhat.com>
---
 include/sysemu/tpm.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/include/sysemu/tpm.h b/include/sysemu/tpm.h
index 68b2206463c..fb40e30ff60 100644
--- a/include/sysemu/tpm.h
+++ b/include/sysemu/tpm.h
@@ -80,6 +80,12 @@ static inline TPMVersion tpm_get_version(TPMIf *ti)
 #define tpm_init()  (0)
 #define tpm_cleanup()
 
+/* needed for an alignment check in non-tpm code */
+static inline Object *TPM_IS_CRB(Object *obj)
+{
+     return NULL;
+}
+
 #endif /* CONFIG_TPM */
 
 #endif /* QEMU_TPM_H */
-- 
2.35.1