Convert arm64 to use the arch_cpu_is_hotpluggable() helper rather than
arch_register_cpu().

Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
---
 arch/arm64/kernel/setup.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index 165bd2c0dd5a..42c690bb2d60 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -402,13 +402,9 @@ static inline bool cpu_can_disable(unsigned int cpu)
 	return false;
 }
 
-int arch_register_cpu(int num)
+bool arch_cpu_is_hotpluggable(int num)
 {
-	struct cpu *cpu = &per_cpu(cpu_devices, num);
-
-	cpu->hotpluggable = cpu_can_disable(num);
-
-	return register_cpu(cpu, num);
+	return cpu_can_disable(num);
 }
 
 static void dump_kernel_offset(void)
-- 
2.30.2

On Tue, 07 Nov 2023 10:30:30 +0000
"Russell King (Oracle)" <rmk+kernel@armlinux.org.uk> wrote:

> Convert arm64 to use the arch_cpu_is_hotpluggable() helper rather than
> arch_register_cpu().
> 
> Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Ah. Or previous patch needs a forwards reference to the tweaking
of it it here.

Maybe just smash the 2 together with a Co-developed: ?

I don't care that much so whatever works for you

Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 
> ---
>  arch/arm64/kernel/setup.c | 8 ++------
>  1 file changed, 2 insertions(+), 6 deletions(-)
> 
> diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
> index 165bd2c0dd5a..42c690bb2d60 100644
> --- a/arch/arm64/kernel/setup.c
> +++ b/arch/arm64/kernel/setup.c
> @@ -402,13 +402,9 @@ static inline bool cpu_can_disable(unsigned int cpu)
>  	return false;
>  }
>  
> -int arch_register_cpu(int num)
> +bool arch_cpu_is_hotpluggable(int num)
>  {
> -	struct cpu *cpu = &per_cpu(cpu_devices, num);
> -
> -	cpu->hotpluggable = cpu_can_disable(num);
> -
> -	return register_cpu(cpu, num);
> +	return cpu_can_disable(num);
>  }
>  
>  static void dump_kernel_offset(void)

On Tue, Nov 28, 2023 at 03:11:15PM +0000, Jonathan Cameron wrote:
> On Tue, 07 Nov 2023 10:30:30 +0000
> "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk> wrote:
> 
> > Convert arm64 to use the arch_cpu_is_hotpluggable() helper rather than
> > arch_register_cpu().
> > 
> > Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
> Ah. Or previous patch needs a forwards reference to the tweaking
> of it it here.
> 
> Maybe just smash the 2 together with a Co-developed: ?

I wanted to keep the two separate to preserve the authorship of the
individual patches, so I'll take the former. Thanks.

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTP is here! 80Mbps down 10Mbps up. Decent connectivity at last!

On 11/7/23 20:30, Russell King (Oracle) wrote:
> Convert arm64 to use the arch_cpu_is_hotpluggable() helper rather than
> arch_register_cpu().
> 
> Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
> ---
>   arch/arm64/kernel/setup.c | 8 ++------
>   1 file changed, 2 insertions(+), 6 deletions(-)
> 

Reviewed-by: Gavin Shan <gshan@redhat.com>

On 11/7/23 18:30, Russell King (Oracle) wrote:
> Convert arm64 to use the arch_cpu_is_hotpluggable() helper rather than
> arch_register_cpu().
> 
> Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Shaoqin Huang <shahuang@redhat.com>
> ---
>   arch/arm64/kernel/setup.c | 8 ++------
>   1 file changed, 2 insertions(+), 6 deletions(-)
> 
> diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
> index 165bd2c0dd5a..42c690bb2d60 100644
> --- a/arch/arm64/kernel/setup.c
> +++ b/arch/arm64/kernel/setup.c
> @@ -402,13 +402,9 @@ static inline bool cpu_can_disable(unsigned int cpu)
>   	return false;
>   }
>   
> -int arch_register_cpu(int num)
> +bool arch_cpu_is_hotpluggable(int num)
>   {
> -	struct cpu *cpu = &per_cpu(cpu_devices, num);
> -
> -	cpu->hotpluggable = cpu_can_disable(num);
> -
> -	return register_cpu(cpu, num);
> +	return cpu_can_disable(num);
>   }
>   
>   static void dump_kernel_offset(void)

-- 
Shaoqin