xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

tpm: remove @space from tpm_transmit()

Browse Source 
Remove @space from tpm_transmit() API` in order to completely remove the
bound between low-level transmission functionality and TPM spaces. The
only real dependency existing is the amount of data saved before trying
to send a command to the TPM.

It doesn't really matter if we save always a bit more than needed so
this commit changes the amount saved always to be the size of the TPM
header and three handles.

Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
Tested-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.com>
Reviewed-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Tested-by: Alexander Steffen <Alexander.Steffen@infineon.com>
This commit is contained in:
Jarkko Sakkinen
2018-11-03 15:15:07 +02:00
parent 29b47ce987
commit 5faafbab77
8 changed files with 43 additions and 53 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/char/tpm/tpm-dev-common.c
View File

@@ -48,7 +48,7 @@ static ssize_t tpm_dev_transmit(struct tpm_chip *chip, struct tpm_space *space,
if (ret)
goto out_lock;
len = tpm_transmit(chip, space, buf, bufsiz, TPM_TRANSMIT_UNLOCKED);
len = tpm_transmit(chip, buf, bufsiz, TPM_TRANSMIT_UNLOCKED);
if (len < 0)
ret = len;