From: Jakub Kicinski <kuba@kernel.org>
To: Saeed Mahameed <saeed@kernel.org>
Cc: "David S. Miller" <davem@davemloft.net>,
Paolo Abeni <pabeni@redhat.com>,
Eric Dumazet <edumazet@google.com>,
Saeed Mahameed <saeedm@nvidia.com>,
netdev@vger.kernel.org, Tariq Toukan <tariqt@nvidia.com>,
Rahul Rameshbabu <rrameshbabu@nvidia.com>
Subject: Re: [net 07/10] net/mlx5e: Correct SKB room check to use all room in the fifo
Date: Thu, 23 Feb 2023 16:38:36 -0800 [thread overview]
Message-ID: <20230223163836.546bbc76@kernel.org> (raw)
In-Reply-To: <20230223225247.586552-8-saeed@kernel.org>
On Thu, 23 Feb 2023 14:52:44 -0800 Saeed Mahameed wrote:
> From: Rahul Rameshbabu <rrameshbabu@nvidia.com>
>
> Previous check was comparing against the fifo mask. The mask is size of the
> fifo (power of two) minus one, so a less than or equal comparator should be
> used for checking if the fifo has room for the SKB.
>
> Fixes: 19b43a432e3e ("net/mlx5e: Extend SKB room check to include PTP-SQ")
How big is the fifo? Not utilizing a single entry is not really worth
calling a bug if the fifo has at least 32 entries..
next prev parent reply other threads:[~2023-02-24 0:38 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-23 22:52 [pull request][net 00/10] mlx5 fixes 2023-02-23 Saeed Mahameed
2023-02-23 22:52 ` [net 01/10] net/mlx5: Remove NULL check before dev_{put, hold} Saeed Mahameed
2023-02-23 22:52 ` [net 02/10] net/mlx5e: TC, fix return value check in mlx5e_tc_act_stats_create() Saeed Mahameed
2023-02-23 22:52 ` [net 03/10] net/mlx5e: XDP, Allow growing tail for XDP multi buffer Saeed Mahameed
2023-02-24 0:34 ` Jakub Kicinski
2023-02-24 18:07 ` Saeed Mahameed
2023-04-08 11:24 ` Maxim Mikityanskiy
2023-02-23 22:52 ` [net 04/10] net/mlx5e: xsk: Set napi_id to support busy polling on XSK RQ Saeed Mahameed
2023-02-24 0:35 ` Jakub Kicinski
2023-02-23 22:52 ` [net 05/10] mlx5: fix skb leak while fifo resync and push Saeed Mahameed
2023-02-23 22:52 ` [net 06/10] mlx5: fix possible ptp queue fifo use-after-free Saeed Mahameed
2023-02-23 22:52 ` [net 07/10] net/mlx5e: Correct SKB room check to use all room in the fifo Saeed Mahameed
2023-02-24 0:38 ` Jakub Kicinski [this message]
2023-02-24 12:18 ` Vadim Fedorenko
2023-02-24 18:03 ` Saeed Mahameed
2023-02-24 21:58 ` David Laight
2023-02-23 22:52 ` [net 08/10] net/mlx5: ECPF, wait for VF pages only after disabling host PFs Saeed Mahameed
2023-02-23 22:52 ` [net 09/10] net/mlx5e: Verify flow_source cap before using it Saeed Mahameed
2023-02-23 22:52 ` [net 10/10] net/mlx5: Geneve, Fix handling of Geneve object id as error code Saeed Mahameed
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