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Date: Tue, 16 Sep 2014 15:06:51 -0700 From: Alexei Starovoitov <ast@...mgrid.com> To: David Miller <davem@...emloft.net> Cc: Ingo Molnar <mingo@...nel.org>, Linus Torvalds <torvalds@...ux-foundation.org>, Andy Lutomirski <luto@...capital.net>, Daniel Borkmann <dborkman@...hat.com>, Hannes Frederic Sowa <hannes@...essinduktion.org>, Chema Gonzalez <chema@...gle.com>, Eric Dumazet <edumazet@...gle.com>, Peter Zijlstra <a.p.zijlstra@...llo.nl>, Pablo Neira Ayuso <pablo@...filter.org>, "H. Peter Anvin" <hpa@...or.com>, Andrew Morton <akpm@...ux-foundation.org>, Kees Cook <keescook@...omium.org>, Linux API <linux-api@...r.kernel.org>, Network Development <netdev@...r.kernel.org>, LKML <linux-kernel@...r.kernel.org> Subject: Re: [PATCH v12 net-next 03/11] bpf: add lookup/update/delete/iterate methods to BPF maps On Tue, Sep 16, 2014 at 2:49 PM, David Miller <davem@...emloft.net> wrote: > From: Alexei Starovoitov <ast@...mgrid.com> > Date: Tue, 16 Sep 2014 14:23:27 -0700 > >> no compat layer and type checking will be done >> by syscall wrappers. Ok? > > Why are you against using strong typing just for everything other > than the user pointer blobs? > > I don't understand the resistence to my suggestion to just use > aligned_u64 instead of "void __user *" in the union members. All these different variants are ok to me. There are pros and cons to either approach. I'm not against strong typing. I just thought it would be cleaner not to use 'union' and was asking for opinion. That's all. Sure, I will keep 'union' and only change pointers to __aligned_u64. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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