netdev - Re: [PATCH net] net/mlx4e: Remove redundant definition of IB_MTU

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Message-ID: <20250616163602.GA4794@horms.kernel.org>
Date: Mon, 16 Jun 2025 17:36:02 +0100
From: Simon Horman <horms@...nel.org>
To: Leon Romanovsky <leon@...nel.org>
Cc: Andrew Lunn <andrew+netdev@...n.ch>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Mark Zhang <markzhang@...dia.com>,
	linux-rdma@...r.kernel.org, netdev@...r.kernel.org,
	Paolo Abeni <pabeni@...hat.com>,
	Patrisious Haddad <phaddad@...dia.com>,
	Tariq Toukan <tariqt@...dia.com>, Jason Gunthorpe <jgg@...dia.com>
Subject: Re: [PATCH net] net/mlx4e: Remove redundant definition of IB_MTU_XXX

On Mon, Jun 16, 2025 at 11:24:23AM +0300, Leon Romanovsky wrote:
> From: Mark Zhang <markzhang@...dia.com>
> 
> Remove them to avoid "redeclaration of enumerator" build error, as they
> are already defined in ib_verbs.h. This is needed for the following
> patch, which need to include the ib_verbs.h.
> 
> Fixes: 096335b3f983 ("mlx4_core: Allow dynamic MTU configuration for IB ports")
> Reviewed-by: Patrisious Haddad <phaddad@...dia.com>
> Signed-off-by: Mark Zhang <markzhang@...dia.com>
> Signed-off-by: Leon Romanovsky <leonro@...dia.com>

Hi Mark, Leon, all,

If I understand things correctly, without this patch the driver
compiles and functions correctly. But if it is modified to
include rdma/ib_verbs.h, which is required for some other forthcoming
change, then the other parts of this patch are needed to avoid a build
failure.

If so, this doesn't match my understanding of a bug fix.
Rather, it seems like a change (for net-next; no fixess tag?) which could
be included in the patch-set that needs rdma/ib_verbs.h included
in this file.