Re: [PATCH v2 03/31] arm64: Exception handling

From: Olof Johansson
Date: Tue Aug 14 2012 - 19:29:02 EST


Hi,

This one is a bit denser, so just a quick first pass with a couple of minor
comments. I'll revisit the rest.

On Tue, Aug 14, 2012 at 06:52:04PM +0100, Catalin Marinas wrote:

> +el1_sp_pc:
> + /*
> + *Stack or PC alignment exception handling
> + */
> + mrs x0, far_el1
> + mov x1, x25
> + mov x2, sp
> + b do_sp_pc_abort
> +el1_undef:
> + /*
> + *Undefined instruction
> + */

Nit: Missing spaces in the comment here and the one above.

> +el0_undef:
> + /*
> + *Undefined instruction
> + */
> + mov x0, sp
> + b do_undefinstr

Here too.

> diff --git a/arch/arm64/kernel/traps.c b/arch/arm64/kernel/traps.c
> new file mode 100644
> index 0000000..8712a8e
> --- /dev/null
> +++ b/arch/arm64/kernel/traps.c
[...]
> +DEFINE_SPINLOCK(die_lock);

Should probably be static.

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