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 12:21:40 +0300 |
| commit | 919d13a7e455c2e7676042d7a5f94c164e859d8a (patch) | |
| tree | 0b272b82900d1a7760b3cb2838390fa54cbd9a69 /drivers/net/ethernet/netronome | |
| parent | 94c0a6fbd5cfc34d3ce5fea5867123402cdc8794 (diff) | |
| download | linux-919d13a7e455c2e7676042d7a5f94c164e859d8a.tar.xz | |
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/netronome')
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/nfp_main.c | 2 | ||||
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/nfp_net_main.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_main.c b/drivers/net/ethernet/netronome/nfp/nfp_main.c index 742a420152b3..bb3b8a7f6c5d 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_main.c +++ b/drivers/net/ethernet/netronome/nfp/nfp_main.c @@ -692,7 +692,7 @@ static int nfp_pci_probe(struct pci_dev *pdev, goto err_pci_disable; } - devlink = devlink_alloc(&nfp_devlink_ops, sizeof(*pf)); + devlink = devlink_alloc(&nfp_devlink_ops, sizeof(*pf), &pdev->dev); if (!devlink) { err = -ENOMEM; goto err_rel_regions; diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_main.c b/drivers/net/ethernet/netronome/nfp/nfp_net_main.c index 921db40047d7..d10a93801344 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_net_main.c +++ b/drivers/net/ethernet/netronome/nfp/nfp_net_main.c @@ -701,7 +701,7 @@ int nfp_net_pci_probe(struct nfp_pf *pf) if (err) goto err_unmap; - err = devlink_register(devlink, &pf->pdev->dev); + err = devlink_register(devlink); if (err) goto err_app_clean; |