From mboxrd@z Thu Jan  1 00:00:00 1970
From: "=?ISO-8859-1?Q?Fr=E9d=E9ric_Weisbecker?=" <fweisbec@gmail.com>
Subject: Re: linux-next: kernel/trace/trace.c:658: error:
Date: Thu, 23 Oct 2008 14:48:15 +0200
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To: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>, linux-next@vger.kernel.org, linux-kernel@vger.kernel.org
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2008/10/23 Alexey Dobriyan <adobriyan@gmail.com>:
> On alpha-smp-n-debug-y:
>
> kernel/trace/trace.c: In function 'tracing_generic_entry_update':
> kernel/trace/trace.c:658: error: implicit declaration of function 'irqs_disabled_flags'
> kernel/trace/trace.c: In function 'tracing_cpumask_write':
> kernel/trace/trace.c:2145: error: implicit declaration of function 'raw_local_irq_disable'
> kernel/trace/trace.c:2162: error: implicit declaration of function 'raw_local_irq_enable'
> kernel/trace/trace.c: In function 'trace_die_handler':
> kernel/trace/trace.c:3039: error: 'DIE_OOPS' undeclared (first use in this function)
>
> This has something with config dependencies, because adding include doesn't fix it.
>

A lot of arch have an asm/irqflags.h but not alpha.
In linux/irqflags, raw_local_irq_* functions are defined to be
local_irq_* function if they don't support
CONFIG_TRACE_IRQFLAGS_SUPPORT.
It seems the error is here, alpha may turn this option off.