[iwl-next v2] ice: Check all ice_vsi_rebuild() errors in function

[iwl-next v2] ice: Check all ice_vsi_rebuild() errors in function

[Karen Ostrowska]

From: Eric Joyner <eric.joyner@intel.com>

Check the return value from ice_vsi_rebuild() and prevent the usage of
incorrectly configured VSI.

Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Eric Joyner <eric.joyner@intel.com>
Signed-off-by: Karen Ostrowska <karen.ostrowska@intel.com>
---
On v1 there was no goto done line added after ice_vsi_open(vsi).
It's needed to skip printing error message when is on success.

Original patch was introduced as implementation change not because of
fixing something, so I will skip adding here Fixes tag.
---
 drivers/net/ethernet/intel/ice/ice_main.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c
index 7d9a4e856f61..1222e8a175d9 100644
--- a/drivers/net/ethernet/intel/ice/ice_main.c
+++ b/drivers/net/ethernet/intel/ice/ice_main.c
@@ -4155,15 +4155,23 @@ int ice_vsi_recfg_qs(struct ice_vsi *vsi, int new_rx, int new_tx, bool locked)
 
 	/* set for the next time the netdev is started */
 	if (!netif_running(vsi->netdev)) {
-		ice_vsi_rebuild(vsi, ICE_VSI_FLAG_NO_INIT);
+		err = ice_vsi_rebuild(vsi, ICE_VSI_FLAG_NO_INIT);
+		if (err)
+			goto rebuild_err;
 		dev_dbg(ice_pf_to_dev(pf), "Link is down, queue count change happens when link is brought up\n");
 		goto done;
 	}
 
 	ice_vsi_close(vsi);
-	ice_vsi_rebuild(vsi, ICE_VSI_FLAG_NO_INIT);
+	err = ice_vsi_rebuild(vsi, ICE_VSI_FLAG_NO_INIT);
+	if (err)
+		goto rebuild_err;
+
 	ice_pf_dcb_recfg(pf, locked);
 	ice_vsi_open(vsi);
+       goto done;
+
+rebuild_err:
+	dev_err(ice_pf_to_dev(pf), "Error during VSI rebuild: %d. Unload and reload the driver.\n", err);
 done:
 	clear_bit(ICE_CFG_BUSY, pf->state);
 	return err;
-- 
2.39.3

Re: [iwl-next v2] ice: Check all ice_vsi_rebuild() errors in function

[Simon Horman]

On Fri, Jun 14, 2024 at 11:44:35AM +0200, Karen Ostrowska wrote:
> From: Eric Joyner <eric.joyner@intel.com>
> 
> Check the return value from ice_vsi_rebuild() and prevent the usage of
> incorrectly configured VSI.
> 
> Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
> Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
> Signed-off-by: Eric Joyner <eric.joyner@intel.com>
> Signed-off-by: Karen Ostrowska <karen.ostrowska@intel.com>
> ---
> On v1 there was no goto done line added after ice_vsi_open(vsi).
> It's needed to skip printing error message when is on success.
> 
> Original patch was introduced as implementation change not because of
> fixing something, so I will skip adding here Fixes tag.
> ---
>  drivers/net/ethernet/intel/ice/ice_main.c | 12 ++++++++++--
>  1 file changed, 10 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c
> index 7d9a4e856f61..1222e8a175d9 100644
> --- a/drivers/net/ethernet/intel/ice/ice_main.c
> +++ b/drivers/net/ethernet/intel/ice/ice_main.c
> @@ -4155,15 +4155,23 @@ int ice_vsi_recfg_qs(struct ice_vsi *vsi, int new_rx, int new_tx, bool locked)

Hi Karen,

This patch seems to be mangled.
The context above should be:

@@ -4155,15 +4155,24 @@ int ice_vsi_recfg_qs(struct ice_vsi *vsi, int new_rx, int new_tx, bool locked)

i.e. 23 -> 24

>  
>  	/* set for the next time the netdev is started */
>  	if (!netif_running(vsi->netdev)) {
> -		ice_vsi_rebuild(vsi, ICE_VSI_FLAG_NO_INIT);
> +		err = ice_vsi_rebuild(vsi, ICE_VSI_FLAG_NO_INIT);
> +		if (err)
> +			goto rebuild_err;
>  		dev_dbg(ice_pf_to_dev(pf), "Link is down, queue count change happens when link is brought up\n");
>  		goto done;
>  	}
>  
>  	ice_vsi_close(vsi);
> -	ice_vsi_rebuild(vsi, ICE_VSI_FLAG_NO_INIT);
> +	err = ice_vsi_rebuild(vsi, ICE_VSI_FLAG_NO_INIT);
> +	if (err)
> +		goto rebuild_err;
> +
>  	ice_pf_dcb_recfg(pf, locked);
>  	ice_vsi_open(vsi);
> +       goto done;

The line above should be indented using a tab.

> +
> +rebuild_err:
> +	dev_err(ice_pf_to_dev(pf), "Error during VSI rebuild: %d. Unload and reload the driver.\n", err);
>  done:
>  	clear_bit(ICE_CFG_BUSY, pf->state);
>  	return err;
> -- 
> 2.39.3
> 
>