Most of architectures not use '__init' for setup_profiling_timer(), so
need remove it, or can generate warning (e.g. arc with allmodconfig):
MODPOST vmlinux.o
WARNING: vmlinux.o(.text+0x3c682): Section mismatch in reference from the function write_profile() to the function .init.text:setup_profiling_timer()
The function write_profile() references
the function __init setup_profiling_timer().
This is often because write_profile lacks a __init
annotation or the annotation of setup_profiling_timer is wrong.
Signed-off-by: Chen Gang <[email protected]>
---
arch/arc/kernel/smp.c | 2 +-
arch/blackfin/mach-bf561/smp.c | 2 +-
arch/parisc/kernel/smp.c | 2 +-
3 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/arc/kernel/smp.c b/arch/arc/kernel/smp.c
index bca3052..3bdac11 100644
--- a/arch/arc/kernel/smp.c
+++ b/arch/arc/kernel/smp.c
@@ -187,7 +187,7 @@ int __cpu_up(unsigned int cpu, struct task_struct *idle)
/*
* not supported here
*/
-int __init setup_profiling_timer(unsigned int multiplier)
+int setup_profiling_timer(unsigned int multiplier)
{
return -EINVAL;
}
diff --git a/arch/blackfin/mach-bf561/smp.c b/arch/blackfin/mach-bf561/smp.c
index 11789be..3bef058 100644
--- a/arch/blackfin/mach-bf561/smp.c
+++ b/arch/blackfin/mach-bf561/smp.c
@@ -43,7 +43,7 @@ void __init platform_prepare_cpus(unsigned int max_cpus)
init_cpu_present(&mask);
}
-int __init setup_profiling_timer(unsigned int multiplier) /* not supported */
+int setup_profiling_timer(unsigned int multiplier) /* not supported */
{
return -EINVAL;
}
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 8a252f2..2e8cd36 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -433,7 +433,7 @@ int __cpu_up(unsigned int cpu, struct task_struct *tidle)
}
#ifdef CONFIG_PROC_FS
-int __init
+int
setup_profiling_timer(unsigned int multiplier)
{
return -EINVAL;
--
1.7.7.6
On 10/23/2013 07:36 AM, Chen Gang wrote:
> Most of architectures not use '__init' for setup_profiling_timer(), so
> need remove it, or can generate warning (e.g. arc with allmodconfig):
>
> MODPOST vmlinux.o
> WARNING: vmlinux.o(.text+0x3c682): Section mismatch in reference from the function write_profile() to the function .init.text:setup_profiling_timer()
> The function write_profile() references
> the function __init setup_profiling_timer().
> This is often because write_profile lacks a __init
> annotation or the annotation of setup_profiling_timer is wrong.
>
>
> Signed-off-by: Chen Gang <[email protected]>
> ---
> arch/arc/kernel/smp.c | 2 +-
> arch/blackfin/mach-bf561/smp.c | 2 +-
> arch/parisc/kernel/smp.c | 2 +-
> 3 files changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/arch/arc/kernel/smp.c b/arch/arc/kernel/smp.c
> index bca3052..3bdac11 100644
> --- a/arch/arc/kernel/smp.c
> +++ b/arch/arc/kernel/smp.c
> @@ -187,7 +187,7 @@ int __cpu_up(unsigned int cpu, struct task_struct *idle)
> /*
> * not supported here
> */
> -int __init setup_profiling_timer(unsigned int multiplier)
> +int setup_profiling_timer(unsigned int multiplier)
> {
> return -EINVAL;
> }
> diff --git a/arch/blackfin/mach-bf561/smp.c b/arch/blackfin/mach-bf561/smp.c
> index 11789be..3bef058 100644
> --- a/arch/blackfin/mach-bf561/smp.c
> +++ b/arch/blackfin/mach-bf561/smp.c
> @@ -43,7 +43,7 @@ void __init platform_prepare_cpus(unsigned int max_cpus)
> init_cpu_present(&mask);
> }
>
> -int __init setup_profiling_timer(unsigned int multiplier) /* not supported */
> +int setup_profiling_timer(unsigned int multiplier) /* not supported */
> {
> return -EINVAL;
> }
> diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
> index 8a252f2..2e8cd36 100644
> --- a/arch/parisc/kernel/smp.c
> +++ b/arch/parisc/kernel/smp.c
> @@ -433,7 +433,7 @@ int __cpu_up(unsigned int cpu, struct task_struct *tidle)
> }
>
> #ifdef CONFIG_PROC_FS
> -int __init
> +int
> setup_profiling_timer(unsigned int multiplier)
> {
> return -EINVAL;
In theory this change is OK. However this is legacy code at best and it would be
better to define a weak definition in kernel/profile.c and remove this cruft from
relevant arches. I'll send out a patch.
-Vineet
On 10/31/2013 01:45 PM, Vineet Gupta wrote:
> On 10/23/2013 07:36 AM, Chen Gang wrote:
>> Most of architectures not use '__init' for setup_profiling_timer(), so
>> need remove it, or can generate warning (e.g. arc with allmodconfig):
>>
>> MODPOST vmlinux.o
>> WARNING: vmlinux.o(.text+0x3c682): Section mismatch in reference from the function write_profile() to the function .init.text:setup_profiling_timer()
>> The function write_profile() references
>> the function __init setup_profiling_timer().
>> This is often because write_profile lacks a __init
>> annotation or the annotation of setup_profiling_timer is wrong.
>>
>>
>> Signed-off-by: Chen Gang <[email protected]>
>> ---
>> arch/arc/kernel/smp.c | 2 +-
>> arch/blackfin/mach-bf561/smp.c | 2 +-
>> arch/parisc/kernel/smp.c | 2 +-
>> 3 files changed, 3 insertions(+), 3 deletions(-)
>>
>> diff --git a/arch/arc/kernel/smp.c b/arch/arc/kernel/smp.c
>> index bca3052..3bdac11 100644
>> --- a/arch/arc/kernel/smp.c
>> +++ b/arch/arc/kernel/smp.c
>> @@ -187,7 +187,7 @@ int __cpu_up(unsigned int cpu, struct task_struct *idle)
>> /*
>> * not supported here
>> */
>> -int __init setup_profiling_timer(unsigned int multiplier)
>> +int setup_profiling_timer(unsigned int multiplier)
>> {
>> return -EINVAL;
>> }
>> diff --git a/arch/blackfin/mach-bf561/smp.c b/arch/blackfin/mach-bf561/smp.c
>> index 11789be..3bef058 100644
>> --- a/arch/blackfin/mach-bf561/smp.c
>> +++ b/arch/blackfin/mach-bf561/smp.c
>> @@ -43,7 +43,7 @@ void __init platform_prepare_cpus(unsigned int max_cpus)
>> init_cpu_present(&mask);
>> }
>>
>> -int __init setup_profiling_timer(unsigned int multiplier) /* not supported */
>> +int setup_profiling_timer(unsigned int multiplier) /* not supported */
>> {
>> return -EINVAL;
>> }
>> diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
>> index 8a252f2..2e8cd36 100644
>> --- a/arch/parisc/kernel/smp.c
>> +++ b/arch/parisc/kernel/smp.c
>> @@ -433,7 +433,7 @@ int __cpu_up(unsigned int cpu, struct task_struct *tidle)
>> }
>>
>> #ifdef CONFIG_PROC_FS
>> -int __init
>> +int
>> setup_profiling_timer(unsigned int multiplier)
>> {
>> return -EINVAL;
>
> In theory this change is OK. However this is legacy code at best and it would be
> better to define a weak definition in kernel/profile.c and remove this cruft from
> relevant arches. I'll send out a patch.
>
That sounds good to me.
> -Vineet
>
>
--
Chen Gang
On 10/31/2013 02:11 PM, Chen Gang wrote:
> On 10/31/2013 01:45 PM, Vineet Gupta wrote:
>> On 10/23/2013 07:36 AM, Chen Gang wrote:
>>> Most of architectures not use '__init' for setup_profiling_timer(), so
>>> need remove it, or can generate warning (e.g. arc with allmodconfig):
>>>
>>> MODPOST vmlinux.o
>>> WARNING: vmlinux.o(.text+0x3c682): Section mismatch in reference from the function write_profile() to the function .init.text:setup_profiling_timer()
>>> The function write_profile() references
>>> the function __init setup_profiling_timer().
>>> This is often because write_profile lacks a __init
>>> annotation or the annotation of setup_profiling_timer is wrong.
>>>
>>>
>>> Signed-off-by: Chen Gang <[email protected]>
>>> ---
>>> arch/arc/kernel/smp.c | 2 +-
>>> arch/blackfin/mach-bf561/smp.c | 2 +-
>>> arch/parisc/kernel/smp.c | 2 +-
>>> 3 files changed, 3 insertions(+), 3 deletions(-)
>>>
>>> diff --git a/arch/arc/kernel/smp.c b/arch/arc/kernel/smp.c
>>> index bca3052..3bdac11 100644
>>> --- a/arch/arc/kernel/smp.c
>>> +++ b/arch/arc/kernel/smp.c
>>> @@ -187,7 +187,7 @@ int __cpu_up(unsigned int cpu, struct task_struct *idle)
>>> /*
>>> * not supported here
>>> */
>>> -int __init setup_profiling_timer(unsigned int multiplier)
>>> +int setup_profiling_timer(unsigned int multiplier)
>>> {
>>> return -EINVAL;
>>> }
>>> diff --git a/arch/blackfin/mach-bf561/smp.c b/arch/blackfin/mach-bf561/smp.c
>>> index 11789be..3bef058 100644
>>> --- a/arch/blackfin/mach-bf561/smp.c
>>> +++ b/arch/blackfin/mach-bf561/smp.c
>>> @@ -43,7 +43,7 @@ void __init platform_prepare_cpus(unsigned int max_cpus)
>>> init_cpu_present(&mask);
>>> }
>>>
>>> -int __init setup_profiling_timer(unsigned int multiplier) /* not supported */
>>> +int setup_profiling_timer(unsigned int multiplier) /* not supported */
>>> {
>>> return -EINVAL;
>>> }
>>> diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
>>> index 8a252f2..2e8cd36 100644
>>> --- a/arch/parisc/kernel/smp.c
>>> +++ b/arch/parisc/kernel/smp.c
>>> @@ -433,7 +433,7 @@ int __cpu_up(unsigned int cpu, struct task_struct *tidle)
>>> }
>>>
>>> #ifdef CONFIG_PROC_FS
>>> -int __init
>>> +int
>>> setup_profiling_timer(unsigned int multiplier)
>>> {
>>> return -EINVAL;
>>
>> In theory this change is OK. However this is legacy code at best and it would be
>> better to define a weak definition in kernel/profile.c and remove this cruft from
>> relevant arches. I'll send out a patch.
>>
>
> That sounds good to me.
>
Hmm... if so, recommend to modify another architectures which also only
return "-EINVAL", but without "__init" prefix.
Thanks.
--
Chen Gang
On 10/31/2013 11:45 AM, Chen Gang wrote:
> Hmm... if so, recommend to modify another architectures which also only
> return "-EINVAL", but without "__init" prefix.
Yes in first pass, it will only convert the arches which return EINVAL but can ask
the maintainers whether they want the alternate versions too.
So you want to take a stab at this series.
-Vineet
On 10/31/2013 02:22 PM, Vineet Gupta wrote:
> On 10/31/2013 11:45 AM, Chen Gang wrote:
>> > Hmm... if so, recommend to modify another architectures which also only
>> > return "-EINVAL", but without "__init" prefix.
> Yes in first pass, it will only convert the arches which return EINVAL but can ask
> the maintainers whether they want the alternate versions too.
>
Yes.
> So you want to take a stab at this series.
If you have time, please help send.
In 1st half of next month, I will/should turn back to do another things
(e.g. use test tools and read code to find issues, and try to solve them).
Thanks.
--
Chen Gang