netdev - Re: [bpf PATCH v4 1/4] bpf: tls, implement unhash to avoid transition out of ESTABLISHED

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Message-ID: <20190510095352.59418a64@cakuba.netronome.com>
Date:   Fri, 10 May 2019 09:53:52 -0700
From:   Jakub Kicinski <jakub.kicinski@...ronome.com>
To:     John Fastabend <john.fastabend@...il.com>
Cc:     ast@...nel.org, daniel@...earbox.net, netdev@...r.kernel.org,
        bpf@...r.kernel.org
Subject: Re: [bpf PATCH v4 1/4] bpf: tls, implement unhash to avoid
 transition out of ESTABLISHED

On Thu, 09 May 2019 21:57:49 -0700, John Fastabend wrote:
>  #ifdef CONFIG_TLS_DEVICE
>  	if (ctx->rx_conf == TLS_HW)
>  		tls_device_offload_cleanup_rx(sk);
> -
> -	if (ctx->tx_conf != TLS_HW && ctx->rx_conf != TLS_HW) {
> -#else
> -	{
>  #endif
> +
> +	if (ctx->tx_conf != TLS_HW && ctx->rx_conf != TLS_HW)

Did you try to build without CONFIG_TLS_DEVICE?

I think someone spent too much time in Verilog land and decided 
it's a good idea to hide enum values under an ifdef:

$ git grep -C4 TLS_HW,
include/net/tls.h-enum {
include/net/tls.h-      TLS_BASE,
include/net/tls.h-      TLS_SW,
include/net/tls.h-#ifdef CONFIG_TLS_DEVICE
include/net/tls.h:      TLS_HW,
include/net/tls.h-#endif
include/net/tls.h-      TLS_HW_RECORD,
include/net/tls.h-      TLS_NUM_CONFIG,
include/net/tls.h-};

:(

> +		return true;
> +	return false;
> +}