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From: Simon Horman <horms@kernel.org>
To: Sathesh B Edara <sedara@marvell.com>
Cc: linux-kernel@vger.kernel.org, sburla@marvell.com,
	vburru@marvell.com, davem@davemloft.net, edumazet@google.com,
	kuba@kernel.org, pabeni@redhat.com, netdev@vger.kernel.org,
	hgani@marvell.com, andrew@lunn.ch, srasheed@marvell.com
Subject: Re: [net PATCH v2] octeon_ep: Clear VF info at PF when VF driver is removed
Date: Wed, 17 Sep 2025 12:55:42 +0100	[thread overview]
Message-ID: <20250917115542.GA394836@horms.kernel.org> (raw)
In-Reply-To: <20250916131225.21589-1-sedara@marvell.com>

On Tue, Sep 16, 2025 at 06:12:25AM -0700, Sathesh B Edara wrote:
> When a VF (Virtual Function) driver is removed, the PF (Physical Function)
> driver continues to retain stale VF-specific information. This can lead to
> inconsistencies or unexpected behavior when the VF is re-initialized or
> reassigned.
> 
> This patch ensures that the PF driver clears the corresponding VF info
> when the VF driver is removed, maintaining a clean state and preventing
> potential issues.
> 
> Fixes: cde29af9e68e ("octeon_ep: add PF-VF mailbox communication")
> Signed-off-by: Sathesh B Edara <sedara@marvell.com>
> ---
> Changes:
> V2:
>   - Commit header format corrected.

Hi,

I feel that I must be missing something terribly obvious.
But this patch seems to be a subset of the one at the link below.

* [net PATCH v2] octeon_ep: fix VF MAC address lifecycle handling
  https://lore.kernel.org/netdev/20250916133207.21737-1-sedara@marvell.com/

> 
>  drivers/net/ethernet/marvell/octeon_ep/octep_pfvf_mbox.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_pfvf_mbox.c b/drivers/net/ethernet/marvell/octeon_ep/octep_pfvf_mbox.c
> index ebecdd29f3bd..f2759d2073d1 100644
> --- a/drivers/net/ethernet/marvell/octeon_ep/octep_pfvf_mbox.c
> +++ b/drivers/net/ethernet/marvell/octeon_ep/octep_pfvf_mbox.c
> @@ -205,6 +205,8 @@ static void octep_pfvf_dev_remove(struct octep_device *oct,  u32 vf_id,
>  {
>  	int err;
>  
> +	/* Reset VF-specific information maintained by the PF */
> +	memset(&oct->vf_info[vf_id], 0, sizeof(struct octep_pfvf_info));
>  	err = octep_ctrl_net_dev_remove(oct, vf_id);
>  	if (err) {
>  		rsp->s.type = OCTEP_PFVF_MBOX_TYPE_RSP_NACK;
> -- 
> 2.36.0
> 
> 

  reply	other threads:[~2025-09-17 11:55 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-09-16 13:12 [net PATCH v2] octeon_ep: Clear VF info at PF when VF driver is removed Sathesh B Edara
2025-09-17 11:55 ` Simon Horman [this message]
2025-09-17 12:24   ` [EXTERNAL] " Sathesh B Edara
2025-09-17 14:39     ` Simon Horman

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