linux-kernel - Re: [PATCH 2/2] remoteproc: s/big switch/lookup table/

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Date:	Tue, 31 Jan 2012 17:58:10 +0000
From:	Jack Stone <jwjstone@...tmail.fm>
To:	Ohad Ben-Cohen <ohad@...ery.com>
CC:	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	Grant Likely <grant.likely@...retlab.ca>,
	Mark Grosen <mgrosen@...com>
Subject: Re: [PATCH 2/2] remoteproc: s/big switch/lookup table/

On 31/01/12 16:52, Ohad Ben-Cohen wrote:
> +/*
> + * A lookup table for resource handlers. Always keep in sync with
> + * enum fw_resource_type.
> + */
> +static rproc_handle_resource_t rproc_handle_rsc[] = {
> +	rproc_handle_carveout,	/* RSC_CARVEOUT */
> +	rproc_handle_devmem,	/* RSC_DEVMEM */
> +	rproc_handle_trace,	/* RSC_TRACE */
> +	rproc_handle_vring,	/* RSC_VRING */
> +	NULL, /* RSC_VIRTIO_DEV is handled early upon registration */
> +};
> +

You could change this to

[RSC_CARVEOUT] = rproc_handle_carveout,

Then you would be safe against renumbering and would only need to worry
about addition (which your RSC_LAST check copes with).

Thanks,

Jack
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