[PATCH v4 4/5] sysemu: Make TPM structures inaccessible if CONFIG_TPM is not defined

["Philippe Mathieu-Daudé" <philmd@redhat.com>]

From: Stefan Berger <stefanb@linux.ibm.com>

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20210614191335.1968807-5-stefanb@linux.ibm.com>
[PMD: Remove tpm_init() / tpm_cleanup() stubs]
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
 include/sysemu/tpm.h         |  9 +++++++++
 include/sysemu/tpm_backend.h |  6 +++++-
 stubs/tpm.c                  | 10 ----------
 3 files changed, 14 insertions(+), 11 deletions(-)

diff --git a/include/sysemu/tpm.h b/include/sysemu/tpm.h
index 1a85564e479..68b2206463c 100644
--- a/include/sysemu/tpm.h
+++ b/include/sysemu/tpm.h
@@ -15,6 +15,8 @@
 #include "qapi/qapi-types-tpm.h"
 #include "qom/object.h"
 
+#ifdef CONFIG_TPM
+
 int tpm_config_parse(QemuOptsList *opts_list, const char *optarg);
 int tpm_init(void);
 void tpm_cleanup(void);
@@ -73,4 +75,11 @@ static inline TPMVersion tpm_get_version(TPMIf *ti)
     return TPM_IF_GET_CLASS(ti)->get_version(ti);
 }
 
+#else /* CONFIG_TPM */
+
+#define tpm_init()  (0)
+#define tpm_cleanup()
+
+#endif /* CONFIG_TPM */
+
 #endif /* QEMU_TPM_H */
diff --git a/include/sysemu/tpm_backend.h b/include/sysemu/tpm_backend.h
index 6f078f5f482..8fd3269c117 100644
--- a/include/sysemu/tpm_backend.h
+++ b/include/sysemu/tpm_backend.h
@@ -18,6 +18,8 @@
 #include "sysemu/tpm.h"
 #include "qapi/error.h"
 
+#ifdef CONFIG_TPM
+
 #define TYPE_TPM_BACKEND "tpm-backend"
 OBJECT_DECLARE_TYPE(TPMBackend, TPMBackendClass,
                     TPM_BACKEND)
@@ -209,4 +211,6 @@ TPMInfo *tpm_backend_query_tpm(TPMBackend *s);
 
 TPMBackend *qemu_find_tpm_be(const char *id);
 
-#endif
+#endif /* CONFIG_TPM */
+
+#endif /* TPM_BACKEND_H */
diff --git a/stubs/tpm.c b/stubs/tpm.c
index 22014595a06..e79bd2a6c2d 100644
--- a/stubs/tpm.c
+++ b/stubs/tpm.c
@@ -7,18 +7,8 @@
 
 #include "qemu/osdep.h"
 #include "qapi/qapi-commands-tpm.h"
-#include "sysemu/tpm.h"
 #include "hw/acpi/tpm.h"
 
-int tpm_init(void)
-{
-    return 0;
-}
-
-void tpm_cleanup(void)
-{
-}
-
 TPMInfoList *qmp_query_tpm(Error **errp)
 {
     return NULL;
-- 
2.31.1