Re: [PATCH net-next v3 4/6] net: ravb: Move the update of ndev->features to ravb_set_features()

[Sergey Shtylyov]

On 2/13/24 12:41 PM, Claudiu wrote:

> From: Claudiu Beznea <claudiu.beznea.uj@xxxxxxxxxxxxxx>
> 
> Commit c2da9408579d ("ravb: Add Rx checksum offload support for GbEth")
> introduced support for setting GbEth features. With this the IP-specific
> features update functions update the ndev->features individually.
> 
> Next commits add runtime PM support for the ravb driver. The runtime PM
> implementation will enable/disable the IP clocks on
> the ravb_open()/ravb_close() functions. Accessing the IP registers with
> clocks disabled blocks the system.
> 
> The ravb_set_features() function could be executed when the Ethernet
> interface is closed so we need to ensure we don't access IP registers while
> the interface is down when runtime PM support will be in place.
> 
> For these, move the update of ndev->features to ravb_set_features() and
> make the IP-specific features set function return int. In this way we
> update the ndev->features only when the IP-specific features set function
> returns success and we can avoid code duplication when introducing
> runtime PM registers protection.
> 
> Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@xxxxxxxxxxxxxx>

Reviewed-by: Sergey Shtylyov <s.shtylyov@xxxxxx>

[...]

MBR, Sergey