On Thu, Aug 30, 2018 at 1:06 PM Guillaume Nault [off-list ref] wrote:

On Wed, Aug 29, 2018 at 04:03:30PM +0200, Arnd Bergmann wrote:

quoted

@@ -743,10 +744,17 @@ static long ppp_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
              err = 0;
              break;

-     case PPPIOCGIDLE:
-             idle.xmit_idle = (jiffies - ppp->last_xmit) / HZ;
-             idle.recv_idle = (jiffies - ppp->last_recv) / HZ;
-             if (copy_to_user(argp, &idle, sizeof(idle)))
+     case PPPIOCGIDLE32:
+                idle32.xmit_idle = (jiffies - ppp->last_xmit) / HZ;
+                idle32.recv_idle = (jiffies - ppp->last_recv) / HZ;
+                if (copy_to_user(argp, &idle32, sizeof(idle32)))

Missing 'break;'

quoted

+             err = 0;
+             break;
+
+     case PPPIOCGIDLE64:
+             idle64.xmit_idle = (jiffies - ppp->last_xmit) / HZ;
+             idle64.recv_idle = (jiffies - ppp->last_recv) / HZ;
+             if (copy_to_user(argp, &idle32, sizeof(idle32)))

I guess you meant 'idle64' instead of 'idle32'.

Good catch, fixing up both now.

Thanks for the review!

     Arnd