Am Wed, 25 Apr 2018 09:28:38 +0200 schrieb Juergen Gross <[email protected]>:
> Why? (u16)0 - (u16)65400 == 136
My helloworld.c shows that ushort gets promoted to uint, unless it is done like
that:
- if (queue->tx.sring->req_prod - queue->tx.req_cons >
- XEN_NETIF_TX_RING_SIZE) {
+ idx = queue->tx.sring->req_prod - queue->tx.req_cons;
+ if ( idx > XEN_NETIF_TX_RING_SIZE) {
Olaf
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