linux-kernel - Re: [PATCH 05/28] nios2: Traps exception handling

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Date:	Tue, 22 Apr 2014 11:28:31 -0300
From:	Ezequiel Garcia <ezequiel.garcia@...e-electrons.com>
To:	Ley Foon Tan <lftan@...era.com>
Cc:	linux-arch@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-doc@...r.kernel.org, lftan.linux@...il.com,
	cltang@...esourcery.com
Subject: Re: [PATCH 05/28] nios2: Traps exception handling

Hello Ley Foon,

On Apr 19, Ley Foon Tan wrote:
> +
> +#ifndef CONFIG_ALIGNMENT_TRAP
> +/* Alignment exception handler */
> +asmlinkage void handle_unaligned_c(struct pt_regs *fp, int cause)
> +{
> +	unsigned long addr = RDCTL(CTL_BADADDR);
> +
> +	cause >>= 2;
> +	fp->ea -= 4;
> +
> +	if (fixup_exception(fp))
> +		return;

This will throw an undeclared error if you build with CONFIG_ALIGNMENT_TRAP=n.

You need to add the uaccess.h header, or implement some similar fix.
-- 
Ezequiel García, Free Electrons
Embedded Linux, Kernel and Android Engineering
http://free-electrons.com
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