From: Yinghai Lu <yinghai@kernel.org>
To: Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@elte.hu>,
"H. Peter Anvin" <hpa@zytor.com>, Tony Luck <tony.luck@intel.com>
Cc: linux-kernel@vger.kernel.org, Yinghai Lu <yinghai@kernel.org>,
Simon Horman <horms@verge.net.au>,
Magnus Damm <magnus.damm@gmail.com>,
linux-sh@vger.kernel.org
Subject: [PATCH 2/8] sh, irq: Remove irq_reserve_irq calling
Date: Thu, 1 May 2014 16:18:16 -0700 [thread overview]
Message-ID: <1398986302-30455-3-git-send-email-yinghai@kernel.org> (raw)
In-Reply-To: <1398986302-30455-1-git-send-email-yinghai@kernel.org>
in sh calling path:
register_intc_controller
==> irq_create_identity_mapping/irq_create_strict_mappins
==>irq_alloc_desc: it will set bits on allocate_irq
==> intc_register_irq
==> irq_reserve_irq: set bits again
so we can kill this irq_reserve_irq calling.
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: Simon Horman <horms@verge.net.au>
Cc: Magnus Damm <magnus.damm@gmail.com>
Cc: linux-sh@vger.kernel.org
---
drivers/sh/intc/core.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/drivers/sh/intc/core.c b/drivers/sh/intc/core.c
index 8f32a13..05118f92 100644
--- a/drivers/sh/intc/core.c
+++ b/drivers/sh/intc/core.c
@@ -81,11 +81,8 @@ static void __init intc_register_irq(struct intc_desc *desc,
unsigned long flags;
/*
- * Register the IRQ position with the global IRQ map, then insert
- * it in to the radix tree.
+ * insert it in to the radix tree.
*/
- irq_reserve_irq(irq);
-
raw_spin_lock_irqsave(&intc_big_lock, flags);
radix_tree_insert(&d->tree, enum_id, intc_irq_xlate_get(irq));
raw_spin_unlock_irqrestore(&intc_big_lock, flags);
--
1.8.4.5
next prev parent reply other threads:[~2014-05-01 23:19 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-01 23:18 [PATCH 0/8] irq: core changes for x86 ioapic hotplug Yinghai Lu
2014-05-01 23:18 ` [PATCH 1/8] x86, irq: Remove not needed irq_reserve_irqs calling Yinghai Lu
2014-05-01 23:18 ` Yinghai Lu [this message]
2014-05-02 2:38 ` [PATCH 2/8] sh, irq: Remove irq_reserve_irq calling Simon Horman
2014-05-02 15:19 ` Sergei Shtylyov
2014-05-01 23:18 ` [PATCH 3/8] irq: Use irq_alloc_desc_at instead of irq_reserve_irq Yinghai Lu
2014-05-01 23:18 ` [PATCH 4/8] s390: Mark bits in allocated_irqs in general code Yinghai Lu
2014-05-01 23:18 ` [PATCH 5/8] irq: Kill irq_reserve_irq/irq_reserve_irqs Yinghai Lu
2014-05-01 23:18 ` [PATCH 6/8] irq: Add new reserved_irqs clear/mark functions Yinghai Lu
2014-05-02 10:50 ` Thomas Gleixner
2014-05-01 23:18 ` [PATCH 7/8] irq: Add irq_alloc_reserved_desc() Yinghai Lu
2014-05-01 23:18 ` [PATCH 8/8] irq: Do not free unallocated irq descriptors Yinghai Lu
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