Re: [PATCH v3 net-next] net: mana: Add a driver for Microsoft Azure Network Adapter (MANA)

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From: Dexuan Cui <decui@xxxxxxxxxxxxx>
Date: Thu,  8 Apr 2021 15:58:40 -0700

> +struct gdma_msg_hdr {
> +	u32 hdr_type;
> +	u32 msg_type;
> +	u16 msg_version;
> +	u16 hwc_msg_id;
> +	u32 msg_size;
> +} __packed;
> +
> +struct gdma_dev_id {
> +	union {
> +		struct {
> +			u16 type;
> +			u16 instance;
> +		};
> +
> +		u32 as_uint32;
> +	};
> +} __packed;

Please don't  use __packed unless absolutely necessary.  It generates suboptimal code (byte at a time
accesses etc.) and for many of these you don't even need it.

Thank you.



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