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| author | Jerry Snitselaar <jsnitsel@redhat.com> | 2023-05-10 17:54:03 -0700 |
|---|---|---|
| committer | Jarkko Sakkinen <jarkko@kernel.org> | 2023-05-16 02:48:23 +0300 |
| commit | e7d3e5c4b1dd50a70b31524c3228c62bb41bbab2 (patch) | |
| tree | 572cff5c855d3f248e87656761a15be040c2d2ce | |
| parent | 99d46450625590d410f86fe4660a5eff7d3b8343 (diff) | |
| download | lwn-e7d3e5c4b1dd50a70b31524c3228c62bb41bbab2.tar.gz lwn-e7d3e5c4b1dd50a70b31524c3228c62bb41bbab2.zip | |
tpm/tpm_tis: Disable interrupts for more Lenovo devices
The P360 Tiny suffers from an irq storm issue like the T490s, so add
an entry for it to tpm_tis_dmi_table, and force polling. There also
previously was a report from the previous attempt to enable interrupts
that involved a ThinkPad L490. So an entry is added for it as well.
Cc: stable@vger.kernel.org
Reported-by: Peter Zijlstra <peterz@infradead.org> # P360 Tiny
Closes: https://lore.kernel.org/linux-integrity/20230505130731.GO83892@hirez.programming.kicks-ass.net/
Signed-off-by: Jerry Snitselaar <jsnitsel@redhat.com>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
| -rw-r--r-- | drivers/char/tpm/tpm_tis.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/char/tpm/tpm_tis.c b/drivers/char/tpm/tpm_tis.c index 7af389806643..709b4e13bd6e 100644 --- a/drivers/char/tpm/tpm_tis.c +++ b/drivers/char/tpm/tpm_tis.c @@ -122,6 +122,22 @@ static const struct dmi_system_id tpm_tis_dmi_table[] = { DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T490s"), }, }, + { + .callback = tpm_tis_disable_irq, + .ident = "ThinkStation P360 Tiny", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkStation P360 Tiny"), + }, + }, + { + .callback = tpm_tis_disable_irq, + .ident = "ThinkPad L490", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad L490"), + }, + }, {} }; |