netdev - Re: [PATCH, net-next 1/2] bpf: btf: avoid -Wreturn-type warning

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Message-ID: <b070795a-c529-0149-cdf3-b0d9dd9a09ff@iogearbox.net>
Date:   Mon, 28 May 2018 00:36:40 +0200
From:   Daniel Borkmann <daniel@...earbox.net>
To:     Arnd Bergmann <arnd@...db.de>, Alexei Starovoitov <ast@...nel.org>
Cc:     Martin KaFai Lau <kafai@...com>, Song Liu <songliubraving@...com>,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH, net-next 1/2] bpf: btf: avoid -Wreturn-type warning

On 05/25/2018 11:33 PM, Arnd Bergmann wrote:
> gcc warns about a noreturn function possibly returning in
> some configurations:
> 
> kernel/bpf/btf.c: In function 'env_type_is_resolve_sink':
> kernel/bpf/btf.c:729:1: error: control reaches end of non-void function [-Werror=return-type]
> 
> Using BUG() instead of BUG_ON() avoids that warning and otherwise
> does the exact same thing.
> 
> Fixes: eb3f595dab40 ("bpf: btf: Validate type reference")
> Signed-off-by: Arnd Bergmann <arnd@...db.de>

Applied to bpf-next, thanks Arnd!