Le 16/02/21 à 09:17, Jarkko Sakkinen a écrit :
From: Lukasz Majczak <lma@xxxxxxxxxxxx> This is shown with Samsung Chromebook Pro (Caroline) with TPM 1.2 (SLB 9670): [ 4.324298] TPM returned invalid status [ 4.324806] WARNING: CPU: 2 PID: 1 at drivers/char/tpm/tpm_tis_core.c:275 tpm_tis_status+0x86/0x8f Background ========== TCG PC Client Platform TPM Profile (PTP) Specification, paragraph 6.1 FIFO Interface Locality Usage per Register, Table 39 Register Behavior Based on Locality Setting for FIFO - a read attempt to TPM_STS_x Registers returns 0xFF in case of lack of locality. The described situation manifests itself with the following warning trace: The fix ======= Add the proper decorations to tpm_tis_gen_interrupt() and tpm_get_timeouts().
I tried that patch (alone on the top of the HEAD of Linus master) and I still get the same trace in dmesg
