From mboxrd@z Thu Jan  1 00:00:00 1970
From: Vijay Khemka <vijaykhemka@fb.com>
Date: Mon, 26 Nov 2018 21:23:10 +0000
Subject: [PATCH net-next] net/ncsi: Add NCSI Mellanox OEM command
In-Reply-To: <20181121.165244.777667590099933299.davem@davemloft.net>
References: <20181120203516.3460764-1-vijaykhemka@fb.com>
 <20181121.165244.777667590099933299.davem@davemloft.net>
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Thanks David,
I will fix this and upload next version.

Regards
-Vijay

?On 11/21/18, 4:55 PM, "David Miller" <davem@davemloft.net> wrote:

    From: Vijay Khemka <vijaykhemka@fb.com>
    Date: Tue, 20 Nov 2018 12:35:16 -0800
    
    > +static int ncsi_oem_gma_handler_mlx(struct ncsi_cmd_arg *nca)
    > +{
    > +	unsigned char data[NCSI_OEM_MLX_CMD_GMA_LEN];
    > +	int ret = 0;
    > +
    > +	nca->payload = NCSI_OEM_MLX_CMD_GMA_LEN;
    > +
    > +	memset(data, 0, NCSI_OEM_MLX_CMD_GMA_LEN);
    > +	*(unsigned int *)data = ntohl(NCSI_OEM_MFR_MLX_ID);
    
    'data' is not necessarily aligned on an unsigned int boundary.
    
    But second of all you want to use a fixed size type like "u32" or
    similar here, not "unsigned int".
    
    Altogether, something like:
    
    	union {
    		u8 data_u8[NCSI_OEM_MLX_CMD_GMA_LEN];
    		u32 data_u32[[NCSI_OEM_MLX_CMD_GMA_LEN / sizeof(u32)];
    	} u;
    
    	memset(&u, 0, sizeof(u));
    	u.data_u32[0] = ntohl(NCSI_OEM_MFR_MLX_ID);
    	u.data_u8[5] = NCSI_OEM_MLX_CMD_GMA;
    	u.data_u8[6] = NCSI_OEM_MLX_CMD_GMA_PARAM;
    
    If the rest of the ncsi driver has crud like this, it all needs
    to be fixed up similarly.