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From: Yinghai Lu <yinghai@kernel.org>
To: Thomas Gleixner <tglx@linutronix.de>, Feng Tang <feng.tang@intel.com>
Cc: "mingo@redhat.com" <mingo@redhat.com>,
	"hpa@zytor.com" <hpa@zytor.com>,
	"alan@linux.intel.com" <alan@linux.intel.com>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"Brown, Len" <len.brown@intel.com>,
	"linux-tip-commits@vger.kernel.org" 
	<linux-tip-commits@vger.kernel.org>
Subject: Re: [tip:x86/platform] x86: Unify current 3 similar ways of saving IRQ info
Date: Tue, 07 Dec 2010 17:47:14 -0800	[thread overview]
Message-ID: <4CFEE3A2.2050908@kernel.org> (raw)
In-Reply-To: <4CFEE2D3.6050107@kernel.org>

On 12/07/2010 05:43 PM, Yinghai Lu wrote:
> On 12/07/2010 02:32 PM, Thomas Gleixner wrote:
>> On Tue, 7 Dec 2010, Yinghai Lu wrote:
>>> On 12/07/2010 07:56 AM, Thomas Gleixner wrote:
>>>>
>>>>   Same here. No caller is interested in the detailed return value.
>>>>
>>>
>>
>>> ok, after look at code and git log, i knew the reasons for those
>>> strange duplicated functions.
>>>
>>> Alexy changed
>>>
>>>  /* MP IRQ source entries */
>>> -struct mpc_config_intsrc mp_irqs[MAX_IRQ_SOURCES];
>>> +struct mp_config_intsrc mp_irqs[MAX_IRQ_SOURCES];
>>>
>>> to make it decouple that with mpstable definition. so mptable will
>>> have mpc_intsrc, and acpi etc will use mp_config_intsrc
>>>
>>> and he planed to add more member to mp_config_intsrc .... never happened.
>>>
>>> then I added those functions with different parameters.
>>>
>>> one year later JSR changed all back to mpc_instr...
>>>
>>> so now have some duplicated functions....
>>
>>> So yes, we should use simple versions in
>>> arch/x86/kernel/acpi/boot.c. ( assume functions mrst.c are copied
>>> from there)
>>>
>>> and should kill print_mp_irq_info or print_MP_intsrc_info...
>>
>> Nice archaelogical detective work ! :)
>>
>> So now I have Fengs patch plus Yinghais series which seem to go nicely
>> together, but I have the feeling that there is some stuff unresolved.
>>
>> Yinghai, Feng: could you please work out the missing bits an pieces
>> (if any) and provide me a delta patch on top of the existing patches?
>>
> 
> Maybe Feng could send you updated version with simpler function?
> 

also I prefer to keep save_mp_irq() instead of changing it to mp_save_irq().

Thanks

	Yinghai

  reply	other threads:[~2010-12-08  1:49 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-12-03  4:11 [PATCH] x86: unify current 3 similar ways of saving IRQ info Feng Tang
2010-12-06 15:01 ` [tip:x86/platform] x86: Unify " tip-bot for Feng Tang
2010-12-06 17:50   ` Yinghai Lu
2010-12-06 19:51     ` Thomas Gleixner
2010-12-07  5:32     ` Feng Tang
2010-12-07 15:56       ` Thomas Gleixner
2010-12-07 18:43         ` Yinghai Lu
2010-12-07 22:32           ` Thomas Gleixner
2010-12-08  1:43             ` Yinghai Lu
2010-12-08  1:47               ` Yinghai Lu [this message]
2010-12-08  2:08                 ` Feng Tang
2010-12-08  1:52               ` Feng Tang
2010-12-08  7:18             ` Feng Tang
2010-12-09 20:57               ` [tip:x86/apic-cleanups] x86: Further simplify mp_irq info handling tip-bot for Feng Tang
2010-12-09 20:56       ` [tip:x86/apic-cleanups] x86: Unify 3 similar ways of saving mp_irqs info tip-bot for Feng Tang

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