linux-kernel - [PATCH] tpm/tpm_tis: Disable interrupts categorically for Lenovo

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Date:   Thu, 10 Aug 2023 21:24:33 +0300
From:   Jarkko Sakkinen <jarkko@...nel.org>
To:     linux-integrity@...r.kernel.org
Cc:     Linus Torvalds <torvalds@...ux-foundation.org>,
        Jarkko Sakkinen <jarkko@...nel.org>, stable@...r.kernel.org,
        "Takashi Iwai" <tiwai@...e.de>,
        Lino Sanfilippo <l.sanfilippo@...bus.com>,
        linux-kernel@...r.kernel.org
Subject: [PATCH] tpm/tpm_tis: Disable interrupts categorically for Lenovo

By large most of the entries in tpm_tis_dmi_table[] are for Lenovo laptops,
and they keep on coming. Therefore, disable IRQs categorically for Lenovo.

Fixes: e644b2f498d2 ("tpm, tpm_tis: Enable interrupt test")
Cc: <stable@...r.kernel.org> # v6.4+
Reported-by: "Takashi Iwai" <tiwai@...e.de>
Closes: https://lore.kernel.org/linux-integrity/87il9qhxjq.wl-tiwai@suse.de/
Signed-off-by: Jarkko Sakkinen <jarkko@...nel.org>
---
This will be included into v6.5-rc6 PR, as long as Takashi ack's it. I'm
planning to send tomorrow morning (GMT+3).

BR, Jarkko
 drivers/char/tpm/tpm_tis.c | 34 ----------------------------------
 1 file changed, 34 deletions(-)

diff --git a/drivers/char/tpm/tpm_tis.c b/drivers/char/tpm/tpm_tis.c
index 3c0f68b9e44f..dd0f52d35073 100644
--- a/drivers/char/tpm/tpm_tis.c
+++ b/drivers/char/tpm/tpm_tis.c
@@ -132,42 +132,8 @@ static const struct dmi_system_id tpm_tis_dmi_table[] = {
 	},
 	{
 		.callback = tpm_tis_disable_irq,
-		.ident = "ThinkPad T490s",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
-			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"),
-		},
-	},
-	{
-		.callback = tpm_tis_disable_irq,
-		.ident = "ThinkPad L590",
-		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
-			DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad L590"),
-		},
-	},
-	{
-		.callback = tpm_tis_disable_irq,
-		.ident = "ThinkStation P620",
-		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
-			DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkStation P620"),
 		},
 	},
 	{
-- 
2.39.2