lkml.org 
[lkml]   [2017]   [Aug]   [31]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH RESEND v2 1/3] tpm2-cmd: Trigger only missing self tests
Date
tpm2_do_selftest is only used during initialization of the TPM to ensure
that the device functions correctly. Therefore, it is sufficient to request
only missing self tests (parameter full_test=0), not a reexecution of all
self tests, as was done before. This allows for a faster execution of this
command.

Signed-off-by: Alexander Steffen <Alexander.Steffen@infineon.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
---
drivers/char/tpm/tpm2-cmd.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/char/tpm/tpm2-cmd.c b/drivers/char/tpm/tpm2-cmd.c
index e1a41b7..8e940a5 100644
--- a/drivers/char/tpm/tpm2-cmd.c
+++ b/drivers/char/tpm/tpm2-cmd.c
@@ -865,7 +865,7 @@ static int tpm2_start_selftest(struct tpm_chip *chip, bool full)
}

/**
- * tpm2_do_selftest() - run a full self test
+ * tpm2_do_selftest() - ensure that all self tests have passed
*
* @chip: TPM chip to use
*
@@ -886,7 +886,7 @@ static int tpm2_do_selftest(struct tpm_chip *chip)

loops = jiffies_to_msecs(duration) / delay_msec;

- rc = tpm2_start_selftest(chip, true);
+ rc = tpm2_start_selftest(chip, false);
if (rc)
return rc;

--
2.7.4
\
 
 \ /
  Last update: 2017-08-31 19:19    [W:0.062 / U:4.652 seconds]
©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site