diff options
| author | Leon Romanovsky <leonro@nvidia.com> | 2021-08-08 21:57:43 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-08-09 10:21:40 +0100 |
| commit | 919d13a7e455c2e7676042d7a5f94c164e859d8a (patch) | |
| tree | 0b272b82900d1a7760b3cb2838390fa54cbd9a69 /drivers/net/ethernet/broadcom | |
| parent | 94c0a6fbd5cfc34d3ce5fea5867123402cdc8794 (diff) | |
devlink: Set device as early as possible
All kernel devlink implementations call to devlink_alloc() during
initialization routine for specific device which is used later as
a parent device for devlink_register().
Such late device assignment causes to the situation which requires us to
call to device_register() before setting other parameters, but that call
opens devlink to the world and makes accessible for the netlink users.
Any attempt to move devlink_register() to be the last call generates the
following error due to access to the devlink->dev pointer.
[ 8.758862] devlink_nl_param_fill+0x2e8/0xe50
[ 8.760305] devlink_param_notify+0x6d/0x180
[ 8.760435] __devlink_params_register+0x2f1/0x670
[ 8.760558] devlink_params_register+0x1e/0x20
The simple change of API to set devlink device in the devlink_alloc()
instead of devlink_register() fixes all this above and ensures that
prior to call to devlink_register() everything already set.
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/broadcom')
| -rw-r--r-- | drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c index 64381be935a8..2cd8bb37e641 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c @@ -743,14 +743,17 @@ static void bnxt_dl_params_unregister(struct bnxt *bp) int bnxt_dl_register(struct bnxt *bp) { + const struct devlink_ops *devlink_ops; struct devlink_port_attrs attrs = {}; struct devlink *dl; int rc; if (BNXT_PF(bp)) - dl = devlink_alloc(&bnxt_dl_ops, sizeof(struct bnxt_dl)); + devlink_ops = &bnxt_dl_ops; else - dl = devlink_alloc(&bnxt_vf_dl_ops, sizeof(struct bnxt_dl)); + devlink_ops = &bnxt_vf_dl_ops; + + dl = devlink_alloc(devlink_ops, sizeof(struct bnxt_dl), &bp->pdev->dev); if (!dl) { netdev_warn(bp->dev, "devlink_alloc failed\n"); return -ENOMEM; @@ -763,7 +766,7 @@ int bnxt_dl_register(struct bnxt *bp) bp->hwrm_spec_code > 0x10803) bp->eswitch_mode = DEVLINK_ESWITCH_MODE_LEGACY; - rc = devlink_register(dl, &bp->pdev->dev); + rc = devlink_register(dl); if (rc) { netdev_warn(bp->dev, "devlink_register failed. rc=%d\n", rc); goto err_dl_free; |