netdev - Re: [net-next v3 1/2] bpf, seccomp: Add eBPF filter capabilities

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Message-ID: <20180227005446.cmwsmh3fz4vhimmt@smitten>
Date:   Mon, 26 Feb 2018 17:54:46 -0700
From:   Tycho Andersen <tycho@...ho.ws>
To:     Sargun Dhillon <sargun@...gun.me>
Cc:     netdev@...r.kernel.org, containers@...ts.linux-foundation.org,
        wad@...omium.org, keescook@...omium.org, daniel@...earbox.net,
        ast@...nel.org, luto@...capital.net
Subject: Re: [net-next v3 1/2] bpf, seccomp: Add eBPF filter capabilities

On Mon, Feb 26, 2018 at 07:27:05AM +0000, Sargun Dhillon wrote:
> +config SECCOMP_FILTER_EXTENDED
> +	bool "Extended BPF seccomp filters"
> +	depends on SECCOMP_FILTER && BPF_SYSCALL
> +	depends on !CHECKPOINT_RESTORE

Why not just give -EINVAL or something in case one of these is
requested, instead of making them incompatible at compile time?

Tycho