netdev - Re: [PATCH net-next 1/3] samples/bpf: add -Wno-unknown-warning-option to clang

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Date:   Mon, 24 Apr 2017 16:37:41 +0200
From:   Daniel Borkmann <daniel@...earbox.net>
To:     Alexander Alemayhu <alexander@...mayhu.com>, netdev@...r.kernel.org
CC:     ast@...com
Subject: Re: [PATCH net-next 1/3] samples/bpf: add -Wno-unknown-warning-option
 to clang

On 04/24/2017 03:31 PM, Alexander Alemayhu wrote:
> I was initially going to remove '-Wno-address-of-packed-member' because I
> thought it was not supposed to be there but Daniel suggested using
> '-Wno-unknown-warning-option'.
>
> This silences several warnings similiar to the one below
>
> warning: unknown warning option '-Wno-address-of-packed-member' [-Wunknown-warning-option]
> 1 warning generated.

Yeah, that feature seems fairly new (Feb 2017 accepted if I
see this correctly): https://reviews.llvm.org/D20561

Given the -Wno-address-of-packed-member was there to silence
warnings in the first place, we should also silence warnings
when -Wno-address-of-packed-member is unknown to clang/llvm.

[...]
>
> Signed-off-by: Alexander Alemayhu <alexander@...mayhu.com>

Acked-by: Daniel Borkmann <daniel@...earbox.net>