From: Eduard Zingerman <eddyz87@gmail.com>
To: Cupertino Miranda <cupertino.miranda@oracle.com>,
Alexei Starovoitov <alexei.starovoitov@gmail.com>
Cc: bpf <bpf@vger.kernel.org>, Andrii Nakryiko <andrii@kernel.org>,
"Jose E. Marchesi" <jose.marchesi@oracle.com>
Subject: Re: [PATCH bpf-next v4 0/7] bpf/verifier: range computation improvements
Date: Fri, 03 May 2024 11:18:50 -0700 [thread overview]
Message-ID: <402d482b9681aa29f0714d9855a3348a78751343.camel@gmail.com> (raw)
In-Reply-To: <87cyq2u9se.fsf@oracle.com>
On Fri, 2024-05-03 at 17:42 +0100, Cupertino Miranda wrote:
> Is it Ok to reduce all this to 2 patches.
> One with the verifier changes and another with selftests.
Hi Miranda,
I think Alexei meant that patch #7 could be moved to the beginning of the patch-set.
Which would simplify patch #2.
The main logical structure of the series makes sense to me, I think we should keep it:
- replace calls to mark_reg_unknown
>> do equivalent of patch #7 here, remove unnecessary checks <<
- refactor checks for range computation (factor out is_safe_to_compute_dst_reg_range)
- improve XOR and OR range computation
- XOR and OR range computation tests
- relax MUL range computation check
- MUL range computation tests
next prev parent reply other threads:[~2024-05-03 18:18 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-29 21:22 [PATCH bpf-next v4 0/7] bpf/verifier: range computation improvements Cupertino Miranda
2024-04-29 21:22 ` [PATCH bpf-next v4 1/7] bpf/verifier: replace calls to mark_reg_unknown Cupertino Miranda
2024-04-29 21:22 ` [PATCH bpf-next v4 2/7] bpf/verifier: refactor checks for range computation Cupertino Miranda
2024-04-29 23:18 ` Eduard Zingerman
2024-04-30 7:17 ` Cupertino Miranda
2024-04-30 14:52 ` Alexei Starovoitov
2024-04-29 21:22 ` [PATCH bpf-next v4 3/7] bpf/verifier: improve XOR and OR " Cupertino Miranda
2024-04-29 21:22 ` [PATCH bpf-next v4 4/7] selftests/bpf: XOR and OR range computation tests Cupertino Miranda
2024-04-29 21:22 ` [PATCH bpf-next v4 5/7] bpf/verifier: relax MUL range computation check Cupertino Miranda
2024-04-29 21:22 ` [PATCH bpf-next v4 6/7] selftests/bpf: MUL range computation tests Cupertino Miranda
2024-04-29 21:22 ` [PATCH bpf-next v4 7/7] bpf/verifier: improve code after range computation recent changes Cupertino Miranda
2024-04-29 23:16 ` Eduard Zingerman
2024-04-29 23:29 ` Eduard Zingerman
2024-04-30 16:48 ` Eduard Zingerman
2024-05-03 14:14 ` [PATCH bpf-next v4 0/7] bpf/verifier: range computation improvements Cupertino Miranda
2024-05-03 16:20 ` Alexei Starovoitov
2024-05-03 16:42 ` Cupertino Miranda
2024-05-03 18:18 ` Eduard Zingerman [this message]
2024-05-03 19:33 ` Cupertino Miranda
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