linux-kernel - [PATCH v2 3/5] tpm: ppi: Display up to 101 operations as define for version 1.3

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Date:   Thu, 17 Jan 2019 12:41:33 -0500
From:   Stefan Berger <stefanb@...ux.ibm.com>
To:     linux-integrity@...r.kernel.org, jarkko.sakkinen@...ux.intel.com
Cc:     linux-security-module@...r.kernel.org,
        linux-kernel@...r.kernel.org, Stefan Berger <stefanb@...ux.ibm.com>
Subject: [PATCH v2 3/5] tpm: ppi: Display up to 101 operations as define for version 1.3

TPM PPI 1.3 defines operations up to number 101. We need to query up
to this number to show the user what the firmware implements.

Signed-off-by: Stefan Berger <stefanb@...ux.ibm.com>
Tested-by: David Safford <david.safford@...com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
---
 drivers/char/tpm/tpm_ppi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/char/tpm/tpm_ppi.c b/drivers/char/tpm/tpm_ppi.c
index 88ecdae1df03..fdfd6271351e 100644
--- a/drivers/char/tpm/tpm_ppi.c
+++ b/drivers/char/tpm/tpm_ppi.c
@@ -28,7 +28,7 @@
 #define TPM_PPI_FN_GETRSP	5
 #define TPM_PPI_FN_SUBREQ2	7
 #define TPM_PPI_FN_GETOPR	8
-#define PPI_TPM_REQ_MAX		22
+#define PPI_TPM_REQ_MAX		101 /* PPI 1.3 for TPM 2 */
 #define PPI_VS_REQ_START	128
 #define PPI_VS_REQ_END		255
 
-- 
2.13.6