* [PATCH net] devlink: Avoid overwriting port attributes of registered port
@ 2020-11-10 18:52 Parav Pandit
2020-11-10 22:07 ` Jakub Kicinski
2020-11-11 3:47 ` [PATCH net RESEND] " Parav Pandit
0 siblings, 2 replies; 5+ messages in thread
From: Parav Pandit @ 2020-11-10 18:52 UTC (permalink / raw)
To: netdev; +Cc: kuba, davem, Parav Pandit, Jiri Pirko
Cited commit in fixes tag overwrites the port attributes for the
registered port.
Avoid such error by checking registered flag before setting attributes.
Signed-off-by: Parav Pandit <parav@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
---
net/core/devlink.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/net/core/devlink.c b/net/core/devlink.c
index a932d95be798..ab4b1368904f 100644
--- a/net/core/devlink.c
+++ b/net/core/devlink.c
@@ -8254,8 +8254,6 @@ static int __devlink_port_attrs_set(struct devlink_port *devlink_port,
{
struct devlink_port_attrs *attrs = &devlink_port->attrs;
- if (WARN_ON(devlink_port->registered))
- return -EEXIST;
devlink_port->attrs_set = true;
attrs->flavour = flavour;
if (attrs->switch_id.id_len) {
@@ -8279,6 +8277,8 @@ void devlink_port_attrs_set(struct devlink_port *devlink_port,
{
int ret;
+ if (WARN_ON(devlink_port->registered))
+ return;
devlink_port->attrs = *attrs;
ret = __devlink_port_attrs_set(devlink_port, attrs->flavour);
if (ret)
@@ -8301,6 +8301,8 @@ void devlink_port_attrs_pci_pf_set(struct devlink_port *devlink_port, u32 contro
struct devlink_port_attrs *attrs = &devlink_port->attrs;
int ret;
+ if (WARN_ON(devlink_port->registered))
+ return;
ret = __devlink_port_attrs_set(devlink_port,
DEVLINK_PORT_FLAVOUR_PCI_PF);
if (ret)
@@ -8326,6 +8328,8 @@ void devlink_port_attrs_pci_vf_set(struct devlink_port *devlink_port, u32 contro
struct devlink_port_attrs *attrs = &devlink_port->attrs;
int ret;
+ if (WARN_ON(devlink_port->registered))
+ return;
ret = __devlink_port_attrs_set(devlink_port,
DEVLINK_PORT_FLAVOUR_PCI_VF);
if (ret)
--
2.26.2
^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: [PATCH net] devlink: Avoid overwriting port attributes of registered port
2020-11-10 18:52 [PATCH net] devlink: Avoid overwriting port attributes of registered port Parav Pandit
@ 2020-11-10 22:07 ` Jakub Kicinski
2020-11-11 3:31 ` Parav Pandit
2020-11-11 3:47 ` [PATCH net RESEND] " Parav Pandit
1 sibling, 1 reply; 5+ messages in thread
From: Jakub Kicinski @ 2020-11-10 22:07 UTC (permalink / raw)
To: Parav Pandit; +Cc: netdev, davem, Jiri Pirko
On Tue, 10 Nov 2020 20:52:58 +0200 Parav Pandit wrote:
> Cited commit in fixes tag overwrites the port attributes for the
> registered port.
Seems like you forgot the fixes tag you're referring to.
> Avoid such error by checking registered flag before setting attributes.
>
> Signed-off-by: Parav Pandit <parav@nvidia.com>
> Reviewed-by: Jiri Pirko <jiri@nvidia.com>
^ permalink raw reply [flat|nested] 5+ messages in thread
* RE: [PATCH net] devlink: Avoid overwriting port attributes of registered port
2020-11-10 22:07 ` Jakub Kicinski
@ 2020-11-11 3:31 ` Parav Pandit
0 siblings, 0 replies; 5+ messages in thread
From: Parav Pandit @ 2020-11-11 3:31 UTC (permalink / raw)
To: Jakub Kicinski; +Cc: netdev, davem, Jiri Pirko
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^ permalink raw reply [flat|nested] 5+ messages in thread
* [PATCH net RESEND] devlink: Avoid overwriting port attributes of registered port
2020-11-10 18:52 [PATCH net] devlink: Avoid overwriting port attributes of registered port Parav Pandit
2020-11-10 22:07 ` Jakub Kicinski
@ 2020-11-11 3:47 ` Parav Pandit
2020-11-12 16:09 ` Jakub Kicinski
1 sibling, 1 reply; 5+ messages in thread
From: Parav Pandit @ 2020-11-11 3:47 UTC (permalink / raw)
To: netdev; +Cc: kuba, davem, Parav Pandit, Jiri Pirko
Cited commit in fixes tag overwrites the port attributes for the
registered port.
Avoid such error by checking registered flag before setting attributes.
Fixes: 71ad8d55f8e5 ("devlink: Replace devlink_port_attrs_set parameters with a struct")
Signed-off-by: Parav Pandit <parav@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
---
net/core/devlink.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/net/core/devlink.c b/net/core/devlink.c
index a932d95be798..ab4b1368904f 100644
--- a/net/core/devlink.c
+++ b/net/core/devlink.c
@@ -8254,8 +8254,6 @@ static int __devlink_port_attrs_set(struct devlink_port *devlink_port,
{
struct devlink_port_attrs *attrs = &devlink_port->attrs;
- if (WARN_ON(devlink_port->registered))
- return -EEXIST;
devlink_port->attrs_set = true;
attrs->flavour = flavour;
if (attrs->switch_id.id_len) {
@@ -8279,6 +8277,8 @@ void devlink_port_attrs_set(struct devlink_port *devlink_port,
{
int ret;
+ if (WARN_ON(devlink_port->registered))
+ return;
devlink_port->attrs = *attrs;
ret = __devlink_port_attrs_set(devlink_port, attrs->flavour);
if (ret)
@@ -8301,6 +8301,8 @@ void devlink_port_attrs_pci_pf_set(struct devlink_port *devlink_port, u32 contro
struct devlink_port_attrs *attrs = &devlink_port->attrs;
int ret;
+ if (WARN_ON(devlink_port->registered))
+ return;
ret = __devlink_port_attrs_set(devlink_port,
DEVLINK_PORT_FLAVOUR_PCI_PF);
if (ret)
@@ -8326,6 +8328,8 @@ void devlink_port_attrs_pci_vf_set(struct devlink_port *devlink_port, u32 contro
struct devlink_port_attrs *attrs = &devlink_port->attrs;
int ret;
+ if (WARN_ON(devlink_port->registered))
+ return;
ret = __devlink_port_attrs_set(devlink_port,
DEVLINK_PORT_FLAVOUR_PCI_VF);
if (ret)
--
2.26.2
^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: [PATCH net RESEND] devlink: Avoid overwriting port attributes of registered port
2020-11-11 3:47 ` [PATCH net RESEND] " Parav Pandit
@ 2020-11-12 16:09 ` Jakub Kicinski
0 siblings, 0 replies; 5+ messages in thread
From: Jakub Kicinski @ 2020-11-12 16:09 UTC (permalink / raw)
To: Parav Pandit; +Cc: netdev, davem, Jiri Pirko
On Wed, 11 Nov 2020 05:47:44 +0200 Parav Pandit wrote:
> Cited commit in fixes tag overwrites the port attributes for the
> registered port.
>
> Avoid such error by checking registered flag before setting attributes.
>
> Fixes: 71ad8d55f8e5 ("devlink: Replace devlink_port_attrs_set parameters with a struct")
> Signed-off-by: Parav Pandit <parav@nvidia.com>
> Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Applied, thanks!
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2020-11-12 16:09 UTC | newest]
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2020-11-10 18:52 [PATCH net] devlink: Avoid overwriting port attributes of registered port Parav Pandit
2020-11-10 22:07 ` Jakub Kicinski
2020-11-11 3:31 ` Parav Pandit
2020-11-11 3:47 ` [PATCH net RESEND] " Parav Pandit
2020-11-12 16:09 ` Jakub Kicinski
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