linux-kernel - Re: [PATCH] irq: export handle_simple_irq, irq_modify_status, irq_to_desc, irq_alloc_descs and irq_free

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Message-ID: <4DCD3696.3090804@cam.ac.uk>
Date:	Fri, 13 May 2011 14:48:06 +0100
From:	Jonathan Cameron <jic23@....ac.uk>
To:	unlisted-recipients:; (no To-header on input)
CC:	linux-kernel@...r.kernel.org, tglx@...utronix.de
Subject: Re: [PATCH] irq: export handle_simple_irq, irq_modify_status, irq_to_desc,
 irq_alloc_descs and irq_free_descs

Hi Thomas.

Just a quick request that you give a yes or no to this.

Thanks and sorry for repeated pestering!

Jonathan
> Hi Thomas/All,
> 
> Any feedback on this patch?  We have a lot of code dependent on this and
> with the merge window approaching would like to know if this will be going
> in or not.
> 
> Thanks and sorry for pestering!
> 
> Jonathan
> 
> On 05/04/11 17:18, Jonathan Cameron wrote:
>> V2: add irq_alloc_descs and irq_free_descs for dynamic pool allocation.
>>
>> This is to allow their use in IIO. We have complete control of
>> both the irq_chip creation and requesting of irqs so would like
>> to be able to build as a module. That requires these exports.
>>
>> Signed-off-by: Jonathan Cameron <jic23@....ac.uk>
>> ---
>>  kernel/irq/chip.c    |    2 ++
>>  kernel/irq/irqdesc.c |    3 +++
>>  2 files changed, 5 insertions(+), 0 deletions(-)
>>
>> diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
>> index 4af1e2b..ad409d3 100644
>> --- a/kernel/irq/chip.c
>> +++ b/kernel/irq/chip.c
>> @@ -310,6 +310,7 @@ handle_simple_irq(unsigned int irq, struct irq_desc *desc)
>>  out_unlock:
>>  	raw_spin_unlock(&desc->lock);
>>  }
>> +EXPORT_SYMBOL_GPL(handle_simple_irq);
>>  
>>  /**
>>   *	handle_level_irq - Level type irq handler
>> @@ -612,6 +613,7 @@ void irq_modify_status(unsigned int irq, unsigned long clr, unsigned long set)
>>  
>>  	irq_put_desc_unlock(desc, flags);
>>  }
>> +EXPORT_SYMBOL_GPL(irq_modify_status);
>>  
>>  /**
>>   *	irq_cpu_online - Invoke all irq_cpu_online functions.
>> diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c
>> index 2c039c9..5ac14e2 100644
>> --- a/kernel/irq/irqdesc.c
>> +++ b/kernel/irq/irqdesc.c
>> @@ -110,6 +110,7 @@ struct irq_desc *irq_to_desc(unsigned int irq)
>>  {
>>  	return radix_tree_lookup(&irq_desc_tree, irq);
>>  }
>> +EXPORT_SYMBOL_GPL(irq_to_desc);
>>  
>>  static void delete_irq_desc(unsigned int irq)
>>  {
>> @@ -311,6 +312,7 @@ void irq_free_descs(unsigned int from, unsigned int cnt)
>>  	bitmap_clear(allocated_irqs, from, cnt);
>>  	mutex_unlock(&sparse_irq_lock);
>>  }
>> +EXPORT_SYMBOL_GPL(irq_free_descs);
>>  
>>  /**
>>   * irq_alloc_descs - allocate and initialize a range of irq descriptors
>> @@ -351,6 +353,7 @@ err:
>>  	mutex_unlock(&sparse_irq_lock);
>>  	return ret;
>>  }
>> +EXPORT_SYMBOL_GPL(irq_alloc_descs);
>>  
>>  /**
>>   * irq_reserve_irqs - mark irqs allocated
> 

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