Subject: Re: [PATCH net-next v3 2/7] ipv6: Add case for IPV6_TLV_TNL_ENCAP_LIMIT in EH TLV switch

From: Jakub Kicinski <[email-masked]>
Date: Tue, 20 Jan 2026 16:08:58 -0800

On Mon, 19 Jan 2026 13:12:07 -0800 Tom Herbert wrote:
> +#if IS_ENABLED(CONFIG_IPV6_TUNNEL)
> +				case IPV6_TLV_TNL_ENCAP_LIMIT:
> +					/* The tunnel encapsulation option.
> +					 * This is handled in ip6_tunnel.c so
> +					 * we don't need to do anything here
> +					 * except to accept it as a recognized
> +					 * option
> +					 */
> +					break;
>  #endif
>  				default:
>  					if (!ip6_tlvopt_unknown(skb, off,

Transient build failure here:

net/ipv6/exthdrs.c:207:10: error: use of undeclared identifier 'IPV6_TLV_TNL_ENCAP_LIMIT'
  207 |                                 case IPV6_TLV_TNL_ENCAP_LIMIT:
      |                                      ^~~~~~~~~~~~~~~~~~~~~~~~
-- 
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