linux-kernel - [PATCH 3/10] ACPI / scan: drop IDs that do not comply with the ACPI PNP ID rule

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Message-ID: <1545244.LmV7JB6kqf@vostro.rjw.lan>
Date:	Fri, 30 May 2014 04:24:04 +0200
From:	"Rafael J. Wysocki" <rjw@...ysocki.net>
To:	Zhang Rui <rui.zhang@...el.com>
Cc:	linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org,
	matthew.garrett@...ula.com, mika.westerberg@...ux.intel.com
Subject: [PATCH 3/10] ACPI / scan: drop IDs that do not comply with the ACPI PNP ID rule

From: Zhang Rui <rui.zhang@...el.com>

The PNP ACPI scan handler device ID list includes all the IDs from
all of the struct pnp_device_id instances in the tree, but some of
them do not follow the ACPI PNP ID rule (3 letters + 4 hex digits).

For those IDs, the coressponding devices will never be enumerated
via ACPI, so it is safe to remove them from the PNP ACPI ID list.

Signed-off-by: Zhang Rui <rui.zhang@...el.com>
[rjw: Subject and changelog]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
---
drivers/acpi/acpi_pnp.c | 4 ----
 drivers/acpi/acpi_pnp.c |    4 ----
 1 file changed, 4 deletions(-)

Index: linux-pm/drivers/acpi/acpi_pnp.c
===================================================================
--- linux-pm.orig/drivers/acpi/acpi_pnp.c
+++ linux-pm/drivers/acpi/acpi_pnp.c
@@ -34,10 +34,6 @@ static const struct acpi_device_id acpi_
 	/* ide   */
 	{"PNP0600"},		/* Generic ESDI/IDE/ATA compatible hard disk controller */
 	/* ns558 */
-	{"@P@...1"},		/* ALS 100 */
-	{"@P@...0"},		/* ALS 200 */
-	{"@P@...1"},		/* ALS 100+ */
-	{"@P@...1"},		/* ALS 120 */
 	{"ASB16fd"},		/* AdLib NSC16 */
 	{"AZT3001"},		/* AZT1008 */
 	{"CDC0001"},		/* Opl3-SAx */

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