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.
v2: fixed spelling
Signed-off-by: Enrico Weigelt, metux IT consult <[email protected]>
---
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..fc37a9a5c2a8 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
Hi--
On 12/2/20 4:21 AM, Enrico Weigelt, metux IT consult wrote:
> 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.
>
> v2: fixed spelling
>
> Signed-off-by: Enrico Weigelt, metux IT consult <[email protected]>
> ---
> 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..fc37a9a5c2a8 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.
Apple-specific
> +
> + 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)
want to
and kb == kilobits. Is that what you mean here?
> +
> config ACPI_SPCR_TABLE
> bool "ACPI Serial Port Console Redirection Support"
> default y if X86
--
~Randy
On 02.12.20 18:51, Randy Dunlap wrote:
Hi,
>> +config ACPI_APPLE
>> + bool "Apple ACPI properties support"
>> + default y if X86
>> + help
>> + Extraction of apple specific ACPI properties.>
> Apple-specific
ok, thanks.
>> +
>> + 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)
>
> want to
>
> and kb == kilobits. Is that what you mean here?
around 6.6kb stripped, 74kb unstripped.
--mtx
--
---
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---
Enrico Weigelt, metux IT consult
Free software and Linux embedded engineering
[email protected] -- +49-151-27565287