linux-kernel - Re: [tip:x86/apic] x86: x2apic, IR: Move eoi_ioapic_irq() into a CONFIG_INTR

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Message-ID: <20090421140416.GB10856@lenovo>
Date:	Tue, 21 Apr 2009 18:04:16 +0400
From:	Cyrill Gorcunov <gorcunov@...il.com>
To:	mingo@...hat.com, hpa@...or.com, linux-kernel@...r.kernel.org,
	suresh.b.siddha@...el.com, weidong.han@...el.com,
	tglx@...utronix.de, mingo@...e.hu
Cc:	linux-tip-commits@...r.kernel.org
Subject: Re: [tip:x86/apic] x86: x2apic, IR: Move eoi_ioapic_irq() into a
	CONFIG_INTR_REMAP section

[tip-bot for Suresh Siddha - Tue, Apr 21, 2009 at 08:07:00AM +0000]
| Commit-ID:  25629d810a52176758401184d9b437fbb7f79195
| Gitweb:     http://git.kernel.org/tip/25629d810a52176758401184d9b437fbb7f79195
| Author:     Suresh Siddha <suresh.b.siddha@...el.com>
| AuthorDate: Mon, 20 Apr 2009 13:02:28 -0700
| Committer:  Ingo Molnar <mingo@...e.hu>
| CommitDate: Tue, 21 Apr 2009 09:08:26 +0200
| 
| x86: x2apic, IR: Move eoi_ioapic_irq() into a CONFIG_INTR_REMAP section
| 
| Address the following complier warning:
| 
|    arch/x86/kernel/apic/io_apic.c:2543: warning: `eoi_ioapic_irq' defined but not used
| 
| By moving that function (and eoi_ioapic_irq()) into an existing
| #ifdef CONFIG_INTR_REMAP section of the code.
| 
| [ Impact: cleanup ]
| 
| Signed-off-by: Suresh Siddha <suresh.b.siddha@...el.com>
| Cc: dwmw2@...radead.org
| Cc: Weidong Han <weidong.han@...el.com>
| LKML-Reference: <20090420200450.271099000@...ux-os.sc.intel.com>
| Signed-off-by: Ingo Molnar <mingo@...e.hu>
| Cc: Weidong Han <weidong.han@...el.com>
| 
| 
| ---
|  arch/x86/kernel/apic/io_apic.c |   66 ++++++++++++++++++++--------------------
|  1 files changed, 33 insertions(+), 33 deletions(-)
| 
...  
|  #ifdef CONFIG_INTR_REMAP
| +static void __eoi_ioapic_irq(unsigned int irq, struct irq_cfg *cfg)
| +{
| +	int apic, pin;
| +	struct irq_pin_list *entry;
| +
| +	entry = cfg->irq_2_pin;
| +	for (;;) {
| +
| +		if (!entry)
| +			break;
| +
| +		apic = entry->apic;
| +		pin = entry->pin;
| +		io_apic_eoi(apic, pin);
| +		entry = entry->next;
| +	}
| +}
| +
...

Btw, maybe we better could use plain "while(entry) {...}" here?

        Cyrill
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