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From: David Marchand <david.marchand@redhat.com>
To: Dariusz Sosnowski <dsosnowski@nvidia.com>,
	Andre Muezerie <andremue@linux.microsoft.com>
Cc: Viacheslav Ovsiienko <viacheslavo@nvidia.com>,
	Bing Zhao <bingz@nvidia.com>, Ori Kam <orika@nvidia.com>,
	 Suanming Mou <suanmingm@nvidia.com>,
	Matan Azrad <matan@nvidia.com>,
	dev@dpdk.org, Raslan Darawsheh <rasland@nvidia.com>,
	stable@dpdk.org
Subject: Re: [PATCH] net/mlx5: fix matcher flags in counter offset detection
Date: Wed, 27 Aug 2025 11:15:57 +0200	[thread overview]
Message-ID: <CAJFAV8wF0PT58zVDJDcmLcLz6Jt99rjexJOkFHBOmXNAhMw+vw@mail.gmail.com> (raw)
In-Reply-To: <20250820084521.1088620-1-dsosnowski@nvidia.com>

On Wed, 20 Aug 2025 at 10:47, Dariusz Sosnowski <dsosnowski@nvidia.com> wrote:
>
> This patch fixes a bug in
> mlx5_flow_dv_discover_counter_offset_support()
> uncovered by a warning reported by MSVC:
>
>     ../drivers/net/mlx5/mlx5_flow_dv.c(19636): warning C5287:
>         operands are different enum types 'ibv_flow_attr_type' and
>         'ibv_flow_flags';
>         use an explicit cast to silence this warning
>
> IBV_FLOW_ATTR_FLAGS_EGRESS was incorrectly passed in to
> type field of mlx5dv_flow_matcher_attr struct,
> instead of flags field.
> As a result counter offset support discovery returned a false positive
> result on application with old rdma-core.
>
> Bugzilla ID: 1758
> Fixes: 4fd5e1484887 ("net/mlx5: fix counter offset detection")
> Cc: suanmingm@nvidia.com
> Cc: stable@dpdk.org
>
> Reported-by: Andre Muezerie <andremue@linux.microsoft.com>
> Signed-off-by: Dariusz Sosnowski <dsosnowski@nvidia.com>

I did not test the patch, but on the principle this lgtm.

Andre, can you confirm it solves the build warning you were seeing with MSVC?


-- 
David Marchand


      reply	other threads:[~2025-08-27  9:16 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-08-20  8:45 Dariusz Sosnowski
2025-08-27  9:15 ` David Marchand [this message]

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