rps: add CONFIG_RPS
RPS currently depends on SMP and SYSFS
Adding a CONFIG_RPS makes sense in case this requirement changes in the
future. This patch saves about 1500 bytes of kernel text in case SMP is
on but SYSFS is off.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index c96c41e..53c272f 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -531,6 +531,7 @@
unsigned long tx_dropped;
} ____cacheline_aligned_in_smp;
+#ifdef CONFIG_RPS
/*
* This structure holds an RPS map which can be of variable length. The
* map is an array of CPUs.
@@ -549,6 +550,7 @@
struct netdev_rx_queue *first;
atomic_t count;
} ____cacheline_aligned_in_smp;
+#endif
/*
* This structure defines the management hooks for network devices.
@@ -897,12 +899,14 @@
unsigned char broadcast[MAX_ADDR_LEN]; /* hw bcast add */
+#ifdef CONFIG_RPS
struct kset *queues_kset;
struct netdev_rx_queue *_rx;
/* Number of RX queues allocated at alloc_netdev_mq() time */
unsigned int num_rx_queues;
+#endif
struct netdev_queue rx_queue;