linux-kernel - Re: [PATCH] arch: ia64: kernel: irq

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Date:	Mon, 5 Jan 2015 11:33:28 -0800
From:	Tony Luck <tony.luck@...il.com>
To:	Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>
Cc:	Fenghua Yu <fenghua.yu@...el.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Grant Likely <grant.likely@...aro.org>,
	Christoph Lameter <cl@...ux.com>, Tejun Heo <tj@...nel.org>,
	Michael Opdenacker <michael.opdenacker@...e-electrons.com>,
	"linux-ia64@...r.kernel.org" <linux-ia64@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] arch: ia64: kernel: irq_ia64.c: Remove unused function

On Sat, Dec 20, 2014 at 9:07 AM, Rickard Strandqvist
<rickard_strandqvist@...ctrumdigital.se> wrote:
> Remove the function ia64_handle_irq() that is not used anywhere.
>
> This was partially found by using a static code analysis program called cppcheck.

$ git grep ia64_handle_irq
arch/ia64/kernel/irq_ia64.c:ia64_handle_irq (ia64_vector vector,
struct pt_regs *regs)
arch/ia64/kernel/irq_ia64.c:
printk("ia64_handle_irq: DANGER: less than "
arch/ia64/kernel/irq_ia64.c:                     * Now try calling
normal ia64_handle_irq as it would have got called
arch/ia64/kernel/ivt.S: br.call.sptk.many b6=ia64_handle_irq

Note that last line. ia64_handle_irq() is called from assembly code

-Tony
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