2007-12-28 15:58:19

by Miguel Botón

Subject: [PATCH] x86: export 'leave_mm' symbol

This patch fixes a linking error if CONFIG_ACPI_PROCESSOR=m
(this error occurs in the 'mm' branch of linux-2.6-x86.git).

We need to export the 'leave_mm' symbol so it can be accessible
for the ACPI processor module.

Signed-off-by: Miguel Botón <[email protected]>

diff --git a/arch/x86/kernel/smp_32.c b/arch/x86/kernel/smp_32.c
index 596d002..dc0cde9 100644
--- a/arch/x86/kernel/smp_32.c
+++ b/arch/x86/kernel/smp_32.c
@@ -263,6 +263,7 @@ void leave_mm(int cpu)
cpu_clear(cpu, per_cpu(cpu_tlbstate, cpu).active_mm->cpu_vm_mask);
load_cr3(swapper_pg_dir);
}
+EXPORT_SYMBOL(leave_mm);

/*
*
diff --git a/arch/x86/kernel/smp_64.c b/arch/x86/kernel/smp_64.c
index 1334afe..2fd74b0 100644
--- a/arch/x86/kernel/smp_64.c
+++ b/arch/x86/kernel/smp_64.c
@@ -76,6 +76,7 @@ void leave_mm(int cpu)
cpu_clear(cpu, read_pda(active_mm)->cpu_vm_mask);
load_cr3(swapper_pg_dir);
}
+EXPORT_SYMBOL(leave_mm);

/*
*

--
Miguel Botón

2007-12-28 19:58:12

by Pallipadi, Venkatesh

Subject: RE: [PATCH] x86: export 'leave_mm' symbol

Acked-by: Venkatesh Pallipadi <[email protected]>



>-----Original Message-----
>From: Miguel Bot?n [mailto:[email protected]]
>Sent: Friday, December 28, 2007 7:58 AM
>To: Linux Kernel Mailing List
>Cc: Ingo Molnar; Thomas Gleixner; Pallipadi, Venkatesh
>Subject: [PATCH] x86: export 'leave_mm' symbol
>
>This patch fixes a linking error if CONFIG_ACPI_PROCESSOR=m
>(this error occurs in the 'mm' branch of linux-2.6-x86.git).
>
>We need to export the 'leave_mm' symbol so it can be accessible
>for the ACPI processor module.
>
>Signed-off-by: Miguel Bot?n <[email protected]>
>
>diff --git a/arch/x86/kernel/smp_32.c b/arch/x86/kernel/smp_32.c
>index 596d002..dc0cde9 100644
>--- a/arch/x86/kernel/smp_32.c
>+++ b/arch/x86/kernel/smp_32.c
>@@ -263,6 +263,7 @@ void leave_mm(int cpu)
> cpu_clear(cpu, per_cpu(cpu_tlbstate,
>cpu).active_mm->cpu_vm_mask);
> load_cr3(swapper_pg_dir);
> }
>+EXPORT_SYMBOL(leave_mm);
>
> /*
> *
>diff --git a/arch/x86/kernel/smp_64.c b/arch/x86/kernel/smp_64.c
>index 1334afe..2fd74b0 100644
>--- a/arch/x86/kernel/smp_64.c
>+++ b/arch/x86/kernel/smp_64.c
>@@ -76,6 +76,7 @@ void leave_mm(int cpu)
> cpu_clear(cpu, read_pda(active_mm)->cpu_vm_mask);
> load_cr3(swapper_pg_dir);
> }
>+EXPORT_SYMBOL(leave_mm);
>
> /*
> *
>
>--
> Miguel Bot?n
>

2007-12-30 14:27:17

by Ingo Molnar

Subject: Re: [PATCH] x86: export 'leave_mm' symbol

* Miguel Bot?n <[email protected]> wrote:

> This patch fixes a linking error if CONFIG_ACPI_PROCESSOR=m (this
> error occurs in the 'mm' branch of linux-2.6-x86.git).
>
> We need to export the 'leave_mm' symbol so it can be accessible for
> the ACPI processor module.

ok - i've added this as EXPORT_SYMBOL_GPL() - this is strictly for
kernel internal use.

Ingo