Re: [PATCH v3 06/27] ia64, irq: Add dummy create_irq_nr()
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- To: Yinghai Lu <yinghai@xxxxxxxxxx>
- Subject: Re: [PATCH v3 06/27] ia64, irq: Add dummy create_irq_nr()
- From: Sebastian Andrzej Siewior <sebastian@xxxxxxxxxxxxx>
- Date: Sun, 9 Jun 2013 17:22:59 +0200
- Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxx>, "H. Peter Anvin" <hpa@xxxxxxxxx>, Bjorn Helgaas <bhelgaas@xxxxxxxxxx>, "Rafael J. Wysocki" <rjw@xxxxxxx>, linux-pci@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, Tony Luck <tony.luck@xxxxxxxxx>, Fenghua Yu <fenghua.yu@xxxxxxxxx>, linux-ia64@xxxxxxxxxxxxxxx
- In-reply-to: <1370644273-10495-7-git-send-email-yinghai@kernel.org>
- List-id: <linux-ia64.vger.kernel.org>
- References: <1370644273-10495-1-git-send-email-yinghai@kernel.org> <1370644273-10495-7-git-send-email-yinghai@kernel.org>
- User-agent: Mutt/1.5.21 (2010-09-15)
On Fri, Jun 07, 2013 at 03:30:52PM -0700, Yinghai Lu wrote:
> create_irq() will return -1 when fail to allocate.
The ia64 code here will return -ENOSPC.
> create_irq_nr() will return 0 when fail to allocate.
>
> Will use it to fix one return value checking for dmar_msi irq.
What about to unify the interface? Using -1 is kinda bad.
Sebastian
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