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Message-ID: <qydvklkwevtrqhz5vyy2gwvdxc55hupvgan4l7nzoteo3cfudm@cr52rpydfzm4>
Date: Wed, 13 Dec 2023 17:20:47 -0700
From: Daniel Xu <dxu@...uu.xyz>
To: Martin KaFai Lau <martin.lau@...ux.dev>
Cc: mykolal@...com, song@...nel.org, john.fastabend@...il.com,
kpsingh@...nel.org, sdf@...gle.com, haoluo@...gle.com, jolsa@...nel.org,
linux-kernel@...r.kernel.org, bpf@...r.kernel.org, linux-kselftest@...r.kernel.org,
devel@...ux-ipsec.org, netdev@...r.kernel.org, ast@...nel.org, andrii@...nel.org,
shuah@...nel.org, daniel@...earbox.net, steffen.klassert@...unet.com,
antony.antony@...unet.com, alexei.starovoitov@...il.com, yonghong.song@...ux.dev,
eddyz87@...il.com, eyal.birger@...il.com, Kuniyuki Iwashima <kuniyu@...zon.com>,
Kuniyuki Iwashima <kuni1840@...il.com>
Subject: Re: [PATCH bpf-next v5 5/9] bpf: selftests: Add verifier tests for
CO-RE bitfield writes
On Wed, Dec 13, 2023 at 03:58:39PM -0800, Martin KaFai Lau wrote:
> On 12/11/23 12:20 PM, Daniel Xu wrote:
> > Add some tests that exercise BPF_CORE_WRITE_BITFIELD() macro. Since some
> > non-trivial bit fiddling is going on, make sure various edge cases (such
> > as adjacent bitfields and bitfields at the edge of structs) are
> > exercised.
>
> Hi DanielXu, I have pushed the libbpf changes (adding
> BPF_CORE_WRITE_BITFIELD) and verifier test in patch 3-5 which is useful by
> itself. e.g. Another patchset can start using it also:
> https://lore.kernel.org/bpf/8fccb066-6d17-4fa8-ba67-287042046ea4@linux.dev/
>
> Thanks.
Sounds good. I'll rebase my patchset on top of bpf-next.
Thanks,
Daniel
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