linux-kernel - Re: [PATCH net-next v3 2/3] net: ethernet: rmnet: Support for downlink MAPv5 checksum offload

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Date:   Wed, 24 Feb 2021 10:23:07 -0800
From:   Jakub Kicinski <kuba@...nel.org>
To:     Sharath Chandra Vurukala <sharathv@...eaurora.org>
Cc:     davem@...emloft.net, elder@...nel.org, cpratapa@...eaurora.org,
        subashab@...eaurora.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next v3 2/3] net: ethernet: rmnet: Support for
 downlink MAPv5 checksum offload

On Wed, 24 Feb 2021 01:32:50 +0530 Sharath Chandra Vurukala wrote:
> +/* MAP CSUM headers */
> +struct rmnet_map_v5_csum_header {
> +#if defined(__LITTLE_ENDIAN_BITFIELD)
> +	u8  next_hdr:1;
> +	u8  header_type:7;
> +	u8  hw_reserved:7;
> +	u8  csum_valid_required:1;
> +#elif defined(__BIG_ENDIAN_BITFIELD)
> +	u8  header_type:7;
> +	u8  next_hdr:1;
> +	u8  csum_valid_required:1;
> +	u8  hw_reserved:7;
> +#else
> +#error	"Please fix <asm/byteorder.h>"
> +#endif
> +	__be16 reserved;
> +} __aligned(1);

This seems to be your first contribution so let me spell it out.

In Linux when maintainers ask you to do something you are expected 
to do it.

You can leave the existing bitfields for later, but don't add another.