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>
Subject: [PATCH 1/8] x86, irq: Remove not needed irq_reserve_irqs calling
Date: Thu, 1 May 2014 16:18:15 -0700 [thread overview]
Message-ID: <1398986302-30455-2-git-send-email-yinghai@kernel.org> (raw)
In-Reply-To: <1398986302-30455-1-git-send-email-yinghai@kernel.org>
Now x86 only support sparseirq path, for that path, calling path like:
early_irq_init
==> arch_probe_nr_irqs : return legacy irq number
==> alloc_desc for legacy irqs and set bits in allocated_irqs
==> arch_early_irq_init
==> irq_reserve_irqs : set bits again
so we can kill one irq_reserve_irqs calling.
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
---
arch/x86/kernel/apic/io_apic.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index 6ad4658..398f9c4 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -206,9 +206,6 @@ int __init arch_early_irq_init(void)
count = ARRAY_SIZE(irq_cfgx);
node = cpu_to_node(0);
- /* Make sure the legacy interrupts are marked in the bitmap */
- irq_reserve_irqs(0, legacy_pic->nr_legacy_irqs);
-
for (i = 0; i < count; i++) {
irq_set_chip_data(i, &cfg[i]);
zalloc_cpumask_var_node(&cfg[i].domain, GFP_KERNEL, node);
--
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 ` Yinghai Lu [this message]
2014-05-01 23:18 ` [PATCH 2/8] sh, irq: Remove irq_reserve_irq calling Yinghai Lu
2014-05-02 2:38 ` 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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1398986302-30455-2-git-send-email-yinghai@kernel.org \
--to=yinghai@kernel.org \
--cc=hpa@zytor.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@elte.hu \
--cc=tglx@linutronix.de \
--cc=tony.luck@intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox