Re: [PATCH net-next 2/7] net: ipa: synchronize NAPI only for suspend

From: Jakub Kicinski
Date: Thu Feb 04 2021 - 23:54:55 EST


On Wed, 3 Feb 2021 09:28:50 -0600 Alex Elder wrote:
> int gsi_channel_suspend(struct gsi *gsi, u32 channel_id, bool stop)
> {
> struct gsi_channel *channel = &gsi->channel[channel_id];
> + int ret;
>
> - return __gsi_channel_stop(channel, stop);
> + /* Synchronize NAPI if successful, to ensure polling has finished. */
> + ret = __gsi_channel_stop(channel, stop);
> + if (!ret)
> + napi_synchronize(&channel->napi);
> +
> + return ret;

nit:

ret = function();
if (ret)
return ret;

/* success path: do something else */

return 0;