linux-kernel - [RFC PATCH 0/5] irq: Kill irq_reserve

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Date:	Sat,  5 Apr 2014 22:39:21 -0700
From:	Yinghai Lu <yinghai@...nel.org>
To:	Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...e.hu>,
	"H. Peter Anvin" <hpa@...or.com>, Tony Luck <tony.luck@...el.com>
Cc:	linux-kernel@...r.kernel.org, Yinghai Lu <yinghai@...nel.org>
Subject: [RFC PATCH 0/5] irq: Kill irq_reserve_irq

Hi,

During reviewing ioapic hotplug patchset, Thomas pointed out that
should not extend irq_reserve_irq for that purpose as that is not
actually reserve.

Neet to clean up old irq_reserve_irq before introduce reserve/alloc_reserved
method for ioapic hotplug.

So here patchset that kill irq_reserve_irq that actually set allocated_irqs.

First remove irq_reserve_irqs for x86, and remove irq_reserve_irq
for sh.
Then in set_irq_chip use irq_alloc_desc instead of irq_reserve_irq.
At last will mark bits in allocated_irqs early for init irqs in !SPARSE_IRQ

Thanks

Yinghai

Yinghai Lu (5):
  x86, irq: Remove not needed irq_reserve_irqs calling
  sh: Remove irq_reserve_irq calling
  irq: Use irq_alloc_desc_at instead of irq_reserve_irq
  s390: Mark bits in allocated_irqs in general code
  genirq: Kill irq_reserve_irq/irq_reserve_irqs

 arch/s390/kernel/irq.c         |  6 +++++-
 arch/x86/kernel/apic/io_apic.c |  3 ---
 drivers/sh/intc/core.c         |  5 +----
 include/linux/irq.h            |  7 +------
 kernel/irq/chip.c              | 14 +++++++-------
 kernel/irq/irqdesc.c           | 35 ++++++++++-------------------------
 6 files changed, 24 insertions(+), 46 deletions(-)

-- 
1.8.4.5

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