Re: [PATCH] drivers/thunder:improve-warning-message-in-device_for_each_child_node()

From: Yunsheng Lin
Date: Tue Jun 13 2023 - 08:53:03 EST


On 2023/6/13 20:38, Wang Ming wrote:
> In device_for_each_child_node(), it should have fwnode_handle_put()
> before break to prevent stale device node references from being
> left behind.
>
> Signed-off-by: Wang Ming <machel@xxxxxxxx>

A Fixes tag seems necessary according to the commit log, and should
target the net branch using:

[PATCH net] drivers/thunder: improve-warning-message-in-device_for_each_child_node()

Also it seems confusing the 'improve' in the title suggest that it is not
a fix.

> ---
> .../net/ethernet/cavium/thunder/thunder_bgx.c | 37 ++++++++++---------
> 1 file changed, 20 insertions(+), 17 deletions(-)
>
> diff --git a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c
> index a317feb8d..d37ee2872 100644
> --- a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c
> +++ b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c
> @@ -90,7 +90,7 @@ static const struct pci_device_id bgx_id_table[] = {
>
> MODULE_AUTHOR("Cavium Inc");
> MODULE_DESCRIPTION("Cavium Thunder BGX/MAC Driver");
> -MODULE_LICENSE("GPL v2");
> +MODULE_LICENSE("GPL");

Is there any reason you changing the license here?

> MODULE_VERSION(DRV_VERSION);
> MODULE_DEVICE_TABLE(pci, bgx_id_table);
>
> @@ -174,10 +174,10 @@ static struct bgx *get_bgx(int node, int bgx_idx)
> }
>
> /* Return number of BGX present in HW */
> -unsigned bgx_get_map(int node)
> +unsigned int bgx_get_map(int node)

It seems to be unrelated change here, is the changing related to the
problem you are fixing?

> {
> int i;
> - unsigned map = 0;
> + unsigned int map = 0;

Same here.

>
> for (i = 0; i < max_bgx_per_node; i++) {
> if (bgx_vnic[(node * max_bgx_per_node) + i])
> @@ -600,9 +600,9 @@ static void bgx_lmac_handler(struct net_device *netdev)
> link_changed = -1;
>
> if (phydev->link &&
> - (lmac->last_duplex != phydev->duplex ||
> - lmac->last_link != phydev->link ||
> - lmac->last_speed != phydev->speed)) {
> + (lmac->last_duplex != phydev->duplex ||
> + lmac->last_link != phydev->link ||
> + lmac->last_speed != phydev->speed)) {

Same here.

> link_changed = 1;
> }
>
> @@ -783,7 +783,7 @@ static int bgx_lmac_xaui_init(struct bgx *bgx, struct lmac *lmac)
> bgx_reg_write(bgx, lmacid, BGX_SPUX_BR_PMD_LD_REP, 0x00);
> /* training enable */
> bgx_reg_modify(bgx, lmacid,
> - BGX_SPUX_BR_PMD_CRTL, SPU_PMD_CRTL_TRAIN_EN);
> + BGX_SPUX_BR_PMD_CRTL, SPU_PMD_CRTL_TRAIN_EN);

Same here.
Please make sure it only contain change related to fixing the
problem.