From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH net] net/mlx4_core: Limit count field to 24 bits in
 qp_alloc_res
Date: Tue, 25 Nov 2014 14:16:20 -0500 (EST)
Message-ID: <20141125.141620.1331667846639491375.davem@davemloft.net>
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From: Or Gerlitz <ogerlitz@mellanox.com>
Date: Tue, 25 Nov 2014 11:54:31 +0200

>  	case RES_OP_RESERVE:
> -		count = get_param_l(&in_param);
> +		count = get_param_l(&in_param) & 0xffffff;

I think if these high bits are set, you should be using the maximum
value rather then truncating.