On Thu, Jan 24, 2019 at 04:49:08PM +0100, Roberto Sassu wrote:

-enum tpm_const {
-	TPM_MINOR = 224,	/* officially assigned */
-	TPM_BUFSIZE = 4096,
-	TPM_NUM_DEVICES = 65536,
-	TPM_RETRY = 50,		/* 5 seconds */
-	TPM_NUM_EVENT_LOG_FILES = 3,
-};

Here using enum has been a bad idea in the first place, as they don't
relate in any meaningful way.

Replace the definition with the following in drivers/char/tpm/tpm.h:

#define TPM_MINOR	224 /* misc backwards compatibility */
#define TPM_BUFSIZE	4096
#define TPM_NUM_DEVICES	65536
#define TPM_RETRY	5 /* seconds */

And only add this to include/linux/tpm.h:

#define TPM_NUM_EVENT_LOG_FILES 3

Otherwise, this looks good.

/Jarkko