From: "Enrico Weigelt, metux IT consult" <info@metux.net>
To: linux-kernel@vger.kernel.org
Cc: linux-acpi@vger.kernel.org
Subject: [PATCH] drivers: acpi: add opt-out of Apple-specific property parsing
Date: Thu, 3 Dec 2020 18:44:53 +0100 [thread overview]
Message-ID: <20201203174453.12084-1-info@metux.net> (raw)
Most x86 machines aren't Apple machines, especially VMs.
Therefore allow opt-out, making the kernel a few KBs smaller,
eg. for embedded or high-density VMs.
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
---
drivers/acpi/Kconfig | 9 +++++++++
drivers/acpi/Makefile | 2 +-
drivers/acpi/internal.h | 2 +-
3 files changed, 11 insertions(+), 2 deletions(-)
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index edf1558c1105..cc47de4f2b18 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -79,6 +79,15 @@ config ACPI_DEBUGGER_USER
endif
+config ACPI_APPLE
+ bool "Apple ACPI properties support"
+ default y if X86
+ help
+ Extraction of Apple-specific ACPI properties.
+
+ Say N if you're sure the kernel won't be used on an Apple machine
+ and wanna save a few kb of memory. (embedded or high-density VMs)
+
config ACPI_SPCR_TABLE
bool "ACPI Serial Port Console Redirection Support"
default y if X86
diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile
index 44e412506317..ed1f4405c90a 100644
--- a/drivers/acpi/Makefile
+++ b/drivers/acpi/Makefile
@@ -52,7 +52,7 @@ acpi-y += evged.o
acpi-y += sysfs.o
acpi-y += property.o
acpi-$(CONFIG_X86) += acpi_cmos_rtc.o
-acpi-$(CONFIG_X86) += x86/apple.o
+acpi-$(CONFIG_ACPI_APPLE) += x86/apple.o
acpi-$(CONFIG_X86) += x86/utils.o
acpi-$(CONFIG_DEBUG_FS) += debugfs.o
acpi-y += acpi_lpat.o
diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index e3638bafb941..fa1b6ef7829a 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -239,7 +239,7 @@ static inline void suspend_nvs_restore(void) {}
void acpi_init_properties(struct acpi_device *adev);
void acpi_free_properties(struct acpi_device *adev);
-#ifdef CONFIG_X86
+#ifdef CONFIG_ACPI_APPLE
void acpi_extract_apple_properties(struct acpi_device *adev);
#else
static inline void acpi_extract_apple_properties(struct acpi_device *adev) {}
--
2.11.0
next reply other threads:[~2020-12-03 17:47 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-03 17:44 Enrico Weigelt, metux IT consult [this message]
2020-12-03 18:19 ` [PATCH] drivers: acpi: add opt-out of Apple-specific property parsing Randy Dunlap
2020-12-03 18:20 ` Rafael J. Wysocki
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