From: Stephen Hemminger <stephen@networkplumber.org>
To: Madhuker Mythri <madhuker.mythri@oracle.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>,
"ferruh.yigit@amd.com" <ferruh.yigit@amd.com>
Subject: Re: [External] : Re: [PATCH] net/tap: Modified TAP BPF program as per the Kernel-version upgrade requirements.
Date: Tue, 16 Jan 2024 08:43:45 -0800 [thread overview]
Message-ID: <20240116084345.4bb401a6@hermes.local> (raw)
In-Reply-To: <SJ0PR10MB479870ACAC4DDFDD5050C774976E2@SJ0PR10MB4798.namprd10.prod.outlook.com>
On Sat, 13 Jan 2024 17:50:19 +0000
Madhuker Mythri <madhuker.mythri@oracle.com> wrote:
> With the original code BPF verifier throws error, due to undefined array access and thus could failed to load the BPF instructions onto the Kernel.
> For safe execution on the Kernel, the array access with such undefined value throws error.
>
> So, came up with this loop which has Max-queues as limit.
>
> Thanks,
> Madhuker,
The result of x & 15 is always going to be less than 16.
The Oracle BPF verifier modifications are junk if it can figure that out.
next prev parent reply other threads:[~2024-01-16 16:43 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-12 13:48 [PATCH] net/tap: Modified TAP BPF program as per the Kernel-version upgrade requirements madhuker.mythri
2024-01-12 16:40 ` Stephen Hemminger
2024-01-12 16:41 ` Stephen Hemminger
2024-01-13 17:50 ` [External] : " Madhuker Mythri
2024-01-13 18:05 ` Stephen Hemminger
2024-01-16 16:43 ` Stephen Hemminger [this message]
2024-01-12 16:42 ` Stephen Hemminger
2024-01-13 17:52 ` [External] : " Madhuker Mythri
2024-01-13 18:06 ` Stephen Hemminger
2024-01-16 5:43 ` Madhuker Mythri
2024-01-16 16:40 ` Stephen Hemminger
2024-01-17 3:25 ` Stephen Hemminger
2024-01-17 16:19 ` Madhuker Mythri
2024-01-12 16:43 ` Stephen Hemminger
2024-01-12 16:46 ` Stephen Hemminger
2024-01-13 17:55 ` [External] : " Madhuker Mythri
2024-01-12 17:53 ` [RFC v3] tap: rework the BPF header parsing Stephen Hemminger
2024-02-07 18:55 ` [PATCH] net/tap: Modified TAP BPF program as per the Kernel-version upgrade requirements Stephen Hemminger
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