linux-kernel - Re: [PATCH 1/2] of: irq: Fix interrupt-map entry matching

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Date:	Thu, 07 Nov 2013 12:32:25 +0100
From:	Tomasz Figa <t.figa@...sung.com>
To:	Grant Likely <grant.likely@...aro.org>
Cc:	Olof Johansson <olof@...om.net>, devicetree@...r.kernel.org,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Kevin Hilman <khilman@...aro.org>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>
Subject: Re: [PATCH 1/2] of: irq: Fix interrupt-map entry matching

Hi Grant,

Could you pick this patch up? It fixes boot-up at least on several Exynos
based platforms, which use interrupt-map nodes with #interrupt-cells
higher than 1.

Also please disregard patch 2/2, as your fix that has been merged seems
to be fine.

Best regards,
Tomasz

On Tuesday 05 of November 2013 16:21:18 Tomasz Figa wrote:
> This patch fixes interrupt-map entry matching code to properly match all
> specifier cells with interrupt map entries.
> 
> Signed-off-by: Tomasz Figa <t.figa@...sung.com>
> ---
>  drivers/of/irq.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/of/irq.c b/drivers/of/irq.c
> index 0ed5ed4..717eed4 100644
> --- a/drivers/of/irq.c
> +++ b/drivers/of/irq.c
> @@ -195,7 +195,7 @@ int of_irq_parse_raw(const __be32 *addr, struct of_phandle_args *out_irq)
>  			/* Compare specifiers */
>  			match = 1;
>  			for (i = 0; i < (addrsize + intsize); i++, imaplen--)
> -				match = !((match_array[i] ^ *imap++) & imask[i]);
> +				match &= !((match_array[i] ^ *imap++) & imask[i]);
>  
>  			pr_debug(" -> match=%d (imaplen=%d)\n", match, imaplen);
>  
> 

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