linux-kernel - [PATCH] acpi: require CRC32 to build

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Date:   Sun, 30 Jan 2022 14:38:18 -0800
From:   Randy Dunlap <rdunlap@...radead.org>
To:     linux-kernel@...r.kernel.org, linux-next@...r.kernel.org
Cc:     Randy Dunlap <rdunlap@...radead.org>,
        Guenter Roeck <linux@...ck-us.net>,
        "Rafael J . Wysocki" <rafael.j.wysocki@...el.com>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>
Subject: [PATCH] acpi: require CRC32 to build

ACPI core now requires crc32() but the kernel build can fail when
CRC32 is not set/enabled, so select it in the ACPI Kconfig entry.

Fixes this build error:

ia64-linux-ld: drivers/acpi/scan.o: in function `acpi_store_pld_crc':
include/acpi/platform/aclinuxex.h:62: undefined reference to `crc32_le'

Fixes: 882c982dada4 ("acpi: Store CRC-32 hash of the _PLD in struct acpi_device")
Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
Reported-by: Guenter Roeck <linux@...ck-us.net>
Cc: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
Cc: Heikki Krogerus <heikki.krogerus@...ux.intel.com>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
---
 drivers/acpi/Kconfig |    1 +
 1 file changed, 1 insertion(+)

--- linux-next-20220128.orig/drivers/acpi/Kconfig
+++ linux-next-20220128/drivers/acpi/Kconfig
@@ -11,6 +11,7 @@ menuconfig ACPI
 	depends on ARCH_SUPPORTS_ACPI
 	select PNP
 	select NLS
+	select CRC32
 	default y if X86
 	help
 	  Advanced Configuration and Power Interface (ACPI) support for