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-rw-r--r--include/linux/tpm.h9
1 files changed, 8 insertions, 1 deletions
diff --git a/include/linux/tpm.h b/include/linux/tpm.h
index 3338b3f5c21..ac5d1c1285d 100644
--- a/include/linux/tpm.h
+++ b/include/linux/tpm.h
@@ -27,9 +27,16 @@
*/
#define TPM_ANY_NUM 0xFFFF
-#if defined(CONFIG_TCG_TPM)
+#if defined(CONFIG_TCG_TPM) || defined(CONFIG_TCG_TPM_MODULE)
extern int tpm_pcr_read(u32 chip_num, int pcr_idx, u8 *res_buf);
extern int tpm_pcr_extend(u32 chip_num, int pcr_idx, const u8 *hash);
+#else
+static inline int tpm_pcr_read(u32 chip_num, int pcr_idx, u8 *res_buf) {
+ return -ENODEV;
+}
+static inline int tpm_pcr_extend(u32 chip_num, int pcr_idx, const u8 *hash) {
+ return -ENODEV;
+}
#endif
#endif