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From: Petr Machata <petrm@nvidia.com>
To: Gary Guo <gary@garyguo.net>
Cc: Bjorn Helgaas <bhelgaas@google.com>,
	Zhenzhong Duan <zhenzhong.duan@gmail.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	"Rafael J. Wysocki" <rafael@kernel.org>,
	Danilo Krummrich <dakr@kernel.org>,
	Damien Le Moal <dlemoal@kernel.org>,
	Niklas Cassel <cassel@kernel.org>,
	"GOTO Masanori" <gotom@debian.or.jp>,
	YOKOTA Hiroshi <yokota@netlab.is.tsukuba.ac.jp>,
	"James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>,
	"Martin K. Petersen" <martin.petersen@oracle.com>,
	Vaibhav Gupta <vaibhavgupta40@gmail.com>,
	"Jens Taprogge" <jens.taprogge@taprogge.org>,
	Ido Schimmel <idosch@nvidia.com>, Petr Machata <petrm@nvidia.com>,
	Andrew Lunn <andrew+netdev@lunn.ch>,
	"David S.  Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
	<linux-pci@vger.kernel.org>, <driver-core@lists.linux.dev>,
	<linux-kernel@vger.kernel.org>, <linux-ide@vger.kernel.org>,
	<linux-scsi@vger.kernel.org>,
	<industrypack-devel@lists.sourceforge.net>,
	<netdev@vger.kernel.org>
Subject: Re: [PATCH v2 4/7] mlxsw: don't keep pci_device_id
Date: Wed, 1 Jul 2026 15:57:50 +0200	[thread overview]
Message-ID: <87y0fu24jb.fsf@nvidia.com> (raw)
In-Reply-To: <20260630-pci_id_fix-v2-4-b834a98c0af2@garyguo.net>


Gary Guo <gary@garyguo.net> writes:

> pci_device_id is not guaranteed to live longer than probe due to presence
> of dynamic ID. This stored ID is unused so remove it.
>
> Signed-off-by: Gary Guo <gary@garyguo.net>
> ---
>  drivers/net/ethernet/mellanox/mlxsw/pci.c | 11 ++++-------
>  1 file changed, 4 insertions(+), 7 deletions(-)
>
> diff --git a/drivers/net/ethernet/mellanox/mlxsw/pci.c b/drivers/net/ethernet/mellanox/mlxsw/pci.c
> index 0da85d36647d..bfe3268dfdc1 100644
> --- a/drivers/net/ethernet/mellanox/mlxsw/pci.c
> +++ b/drivers/net/ethernet/mellanox/mlxsw/pci.c

> @@ -1768,7 +1767,6 @@ static void mlxsw_pci_mbox_free(struct mlxsw_pci *mlxsw_pci,
>  }
>  
>  static int mlxsw_pci_sys_ready_wait(struct mlxsw_pci *mlxsw_pci,
> -				    const struct pci_device_id *id,
>  				    u32 *p_sys_status)
>  {
>  	unsigned long end;

I see, we used this to detect whether we are on SwitchX-2. Support far
that was dropped ages ago in commit b0d80c013b04 ("mlxsw: Remove
Mellanox SwitchX-2 ASIC support").

Good cleanup, thanks.

Reviewed-by: Petr Machata <petrm@nvidia.com>

  parent reply	other threads:[~2026-07-01 14:01 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-06-30 11:09 [PATCH v2 0/7] pci: fix UAF and TOCTOU related to dynamic ID Gary Guo
2026-06-30 11:09 ` [PATCH v2 1/7] ata: don't keep pci_device_id Gary Guo
2026-06-30 11:59   ` Niklas Cassel
2026-06-30 12:41     ` Gary Guo
2026-06-30 19:46   ` Danilo Krummrich
2026-07-01 11:10   ` sashiko-bot
2026-06-30 11:09 ` [PATCH v2 2/7] nsp32: " Gary Guo
2026-06-30 19:46   ` Danilo Krummrich
2026-07-01 11:10   ` sashiko-bot
2026-06-30 11:09 ` [PATCH v2 3/7] ipack: tpci200: " Gary Guo
2026-06-30 19:47   ` Danilo Krummrich
2026-07-01 11:10   ` sashiko-bot
2026-06-30 11:09 ` [PATCH v2 4/7] mlxsw: " Gary Guo
2026-06-30 19:48   ` Danilo Krummrich
2026-07-01 11:10   ` sashiko-bot
2026-07-01 13:57   ` Petr Machata [this message]
2026-06-30 11:09 ` [PATCH v2 5/7] pci: make pci_match_one_device match on ID instead of device Gary Guo
2026-06-30 20:04   ` Danilo Krummrich
2026-07-01 11:10   ` sashiko-bot
2026-06-30 11:09 ` [PATCH v2 6/7] pci: fix dyn_id add TOCTOU Gary Guo
2026-06-30 20:16   ` Danilo Krummrich
2026-07-01 11:10   ` sashiko-bot
2026-06-30 11:09 ` [PATCH v2 7/7] pci: fix UAF when probe runs concurrent to dyn ID removal Gary Guo
2026-06-30 20:25   ` Danilo Krummrich
2026-07-01 11:10   ` sashiko-bot
2026-07-01 11:44     ` Gary Guo

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