| Message ID | 20240807-intro-acpi-arch-init-v2-1-9231e23a7721@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [v2] ACPI: introduce acpi_arch_init | expand |
On Wed, Aug 07, 2024 at 02:36:12PM +0800, Miao Wang via B4 Relay wrote: > From: Miao Wang <shankerwangmiao@gmail.com> > > To avoid arch-specific code in general ACPI initialization flow, > we introduce a weak symbol acpi_arch_init. Currently, arm64 can > utillize this to insert its specific flow. In the future, > other architectures can also have chance to define their own > arch-specific acpi initialization process if necessary. > > Signed-off-by: Miao Wang <shankerwangmiao@gmail.com> > --- > Changes from v1 > - Change acpi_arch_init from a static inline stub to a weak function > according to Haijun Guo's advice > --- > drivers/acpi/arm64/init.c | 2 +- > drivers/acpi/bus.c | 4 +++- > include/linux/acpi.h | 6 +----- > 3 files changed, 5 insertions(+), 7 deletions(-) > > diff --git a/drivers/acpi/arm64/init.c b/drivers/acpi/arm64/init.c > index d0c8aed90fd1..7a47d8095a7d 100644 > --- a/drivers/acpi/arm64/init.c > +++ b/drivers/acpi/arm64/init.c > @@ -2,7 +2,7 @@ > #include <linux/acpi.h> > #include "init.h" > > -void __init acpi_arm_init(void) > +void __init acpi_arch_init(void) > { > if (IS_ENABLED(CONFIG_ACPI_AGDI)) > acpi_agdi_init(); > diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c > index 284bc2e03580..b47541e45a5a 100644 > --- a/drivers/acpi/bus.c > +++ b/drivers/acpi/bus.c > @@ -1431,6 +1431,8 @@ static int __init acpi_bus_init(void) > struct kobject *acpi_kobj; > EXPORT_SYMBOL_GPL(acpi_kobj); > > +void __weak acpi_arch_init(void) { } > + > static int __init acpi_init(void) > { > int result; > @@ -1458,7 +1460,7 @@ static int __init acpi_init(void) > acpi_viot_early_init(); > acpi_hest_init(); > acpi_ghes_init(); > - acpi_arm_init(); > + acpi_arch_init(); > acpi_scan_init(); > acpi_ec_init(); > acpi_debugfs_init(); > diff --git a/include/linux/acpi.h b/include/linux/acpi.h > index 0687a442fec7..52862c377747 100644 > --- a/include/linux/acpi.h > +++ b/include/linux/acpi.h > @@ -1523,11 +1523,7 @@ static inline int find_acpi_cpu_topology_hetero_id(unsigned int cpu) > } > #endif > > -#ifdef CONFIG_ARM64 > -void acpi_arm_init(void); > -#else > -static inline void acpi_arm_init(void) { } > -#endif > +void acpi_arch_init(void); > LGTM. Reviewed-by: Sunil V L <sunilvl@ventanamicro.com> Thanks, Sunil
On Wed, Aug 07, 2024 at 02:36:12PM +0800, Miao Wang via B4 Relay wrote: > From: Miao Wang <shankerwangmiao@gmail.com> > > To avoid arch-specific code in general ACPI initialization flow, > we introduce a weak symbol acpi_arch_init. Currently, arm64 can > utillize this to insert its specific flow. In the future, > other architectures can also have chance to define their own > arch-specific acpi initialization process if necessary. > > Signed-off-by: Miao Wang <shankerwangmiao@gmail.com> > --- > Changes from v1 > - Change acpi_arch_init from a static inline stub to a weak function > according to Haijun Guo's advice > --- > drivers/acpi/arm64/init.c | 2 +- > drivers/acpi/bus.c | 4 +++- > include/linux/acpi.h | 6 +----- > 3 files changed, 5 insertions(+), 7 deletions(-) > > diff --git a/drivers/acpi/arm64/init.c b/drivers/acpi/arm64/init.c > index d0c8aed90fd1..7a47d8095a7d 100644 > --- a/drivers/acpi/arm64/init.c > +++ b/drivers/acpi/arm64/init.c > @@ -2,7 +2,7 @@ > #include <linux/acpi.h> > #include "init.h" > > -void __init acpi_arm_init(void) > +void __init acpi_arch_init(void) > { > if (IS_ENABLED(CONFIG_ACPI_AGDI)) > acpi_agdi_init(); > diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c > index 284bc2e03580..b47541e45a5a 100644 > --- a/drivers/acpi/bus.c > +++ b/drivers/acpi/bus.c > @@ -1431,6 +1431,8 @@ static int __init acpi_bus_init(void) > struct kobject *acpi_kobj; > EXPORT_SYMBOL_GPL(acpi_kobj); > > +void __weak acpi_arch_init(void) { } > + Why is __init dropped or not needed above ? Otherwise looks good. With the above __init fixed, you can add Reviewed-by: Sudeep Holla <sudeep.holla@arm.com> -- Regards, Sudeep
diff --git a/drivers/acpi/arm64/init.c b/drivers/acpi/arm64/init.c index d0c8aed90fd1..7a47d8095a7d 100644 --- a/drivers/acpi/arm64/init.c +++ b/drivers/acpi/arm64/init.c @@ -2,7 +2,7 @@ #include <linux/acpi.h> #include "init.h" -void __init acpi_arm_init(void) +void __init acpi_arch_init(void) { if (IS_ENABLED(CONFIG_ACPI_AGDI)) acpi_agdi_init(); diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index 284bc2e03580..b47541e45a5a 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -1431,6 +1431,8 @@ static int __init acpi_bus_init(void) struct kobject *acpi_kobj; EXPORT_SYMBOL_GPL(acpi_kobj); +void __weak acpi_arch_init(void) { } + static int __init acpi_init(void) { int result; @@ -1458,7 +1460,7 @@ static int __init acpi_init(void) acpi_viot_early_init(); acpi_hest_init(); acpi_ghes_init(); - acpi_arm_init(); + acpi_arch_init(); acpi_scan_init(); acpi_ec_init(); acpi_debugfs_init(); diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 0687a442fec7..52862c377747 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -1523,11 +1523,7 @@ static inline int find_acpi_cpu_topology_hetero_id(unsigned int cpu) } #endif -#ifdef CONFIG_ARM64 -void acpi_arm_init(void); -#else -static inline void acpi_arm_init(void) { } -#endif +void acpi_arch_init(void); #ifdef CONFIG_ACPI_PCC void acpi_init_pcc(void);