Hi Jarkko, After applied this patchset, the boot time become 8.9 secondes, it's more reasonable. But this patchset can't be clean applied to upstream 6.11 kernel. looks like file tpm2-sessions.c is changed in your code base. Tested-by: Pengyu Ma <mapengyu@xxxxxxxxx> Thanks, Pengyu On Tue, Sep 17, 2024 at 11:44 PM Jarkko Sakkinen <jarkko@xxxxxxxxxx> wrote: > > For the sake of: > https://bugzilla.kernel.org/show_bug.cgi?id=219229 > > v2: > https://lore.kernel.org/linux-integrity/20240916110714.1396407-1-jarkko@xxxxxxxxxx/ > v1: > https://lore.kernel.org/linux-integrity/20240915180448.2030115-1-jarkko@xxxxxxxxxx/ > > Jarkko Sakkinen (7): > tpm: Remove the top-level documentation tpm2-sessions.c > tpm: Return on tpm2_create_null_primary() failure > tpm: Return on tpm2_create_primary() failure in tpm2_load_null() > tpm: flush the null key only when /dev/tpm0 is accessed > tpm: Allocate chip->auth in tpm2_start_auth_session() > tpm: flush the auth session only when /dev/tpm0 is open > tpm: open code tpm2_create_null_primary() > > drivers/char/tpm/tpm-chip.c | 14 +++ > drivers/char/tpm/tpm-dev-common.c | 8 ++ > drivers/char/tpm/tpm-interface.c | 10 +- > drivers/char/tpm/tpm2-cmd.c | 3 + > drivers/char/tpm/tpm2-sessions.c | 196 +++++++++++------------------- > include/linux/tpm.h | 2 + > 6 files changed, 109 insertions(+), 124 deletions(-) > > -- > 2.46.0 >