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Subject[PATCH 26/29] net/core: rename random32() and net_random() to prandom_u32()
Date
Use more preferable function name which implies using a pseudo-random
number generator.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org
---
net/core/neighbour.c | 4 ++--
net/core/pktgen.c | 29 +++++++++++++++--------------
net/core/stream.c | 2 +-
3 files changed, 18 insertions(+), 17 deletions(-)

diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index c815f28..6818badb 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -123,7 +123,7 @@ static void neigh_cleanup_and_release(struct neighbour *neigh)

unsigned long neigh_rand_reach_time(unsigned long base)
{
- return base ? (net_random() % base) + (base >> 1) : 0;
+ return base ? (prandom_u32() % base) + (base >> 1) : 0;
}
EXPORT_SYMBOL(neigh_rand_reach_time);

@@ -1402,7 +1402,7 @@ void pneigh_enqueue(struct neigh_table *tbl, struct neigh_parms *p,
struct sk_buff *skb)
{
unsigned long now = jiffies;
- unsigned long sched_next = now + (net_random() % p->proxy_delay);
+ unsigned long sched_next = now + (prandom_u32() % p->proxy_delay);

if (tbl->proxy_queue.qlen > p->proxy_qlen) {
kfree_skb(skb);
diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index b29dacf..d23ec86 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -2182,7 +2182,7 @@ static inline int f_pick(struct pktgen_dev *pkt_dev)
pkt_dev->curfl = 0; /*reset */
}
} else {
- flow = random32() % pkt_dev->cflows;
+ flow = prandom_u32() % pkt_dev->cflows;
pkt_dev->curfl = flow;

if (pkt_dev->flows[flow].count > pkt_dev->lflow) {
@@ -2229,7 +2229,7 @@ static void set_cur_queue_map(struct pktgen_dev *pkt_dev)
else if (pkt_dev->queue_map_min <= pkt_dev->queue_map_max) {
__u16 t;
if (pkt_dev->flags & F_QUEUE_MAP_RND) {
- t = random32() %
+ t = prandom_u32() %
(pkt_dev->queue_map_max -
pkt_dev->queue_map_min + 1)
+ pkt_dev->queue_map_min;
@@ -2261,7 +2261,7 @@ static void mod_cur_headers(struct pktgen_dev *pkt_dev)
__u32 tmp;

if (pkt_dev->flags & F_MACSRC_RND)
- mc = random32() % pkt_dev->src_mac_count;
+ mc = prandom_u32() % pkt_dev->src_mac_count;
else {
mc = pkt_dev->cur_src_mac_offset++;
if (pkt_dev->cur_src_mac_offset >=
@@ -2287,7 +2287,7 @@ static void mod_cur_headers(struct pktgen_dev *pkt_dev)
__u32 tmp;

if (pkt_dev->flags & F_MACDST_RND)
- mc = random32() % pkt_dev->dst_mac_count;
+ mc = prandom_u32() % pkt_dev->dst_mac_count;

else {
mc = pkt_dev->cur_dst_mac_offset++;
@@ -2314,21 +2314,21 @@ static void mod_cur_headers(struct pktgen_dev *pkt_dev)
for (i = 0; i < pkt_dev->nr_labels; i++)
if (pkt_dev->labels[i] & MPLS_STACK_BOTTOM)
pkt_dev->labels[i] = MPLS_STACK_BOTTOM |
- ((__force __be32)random32() &
+ ((__force __be32)prandom_u32() &
htonl(0x000fffff));
}

if ((pkt_dev->flags & F_VID_RND) && (pkt_dev->vlan_id != 0xffff)) {
- pkt_dev->vlan_id = random32() & (4096-1);
+ pkt_dev->vlan_id = prandom_u32() & (4096 - 1);
}

if ((pkt_dev->flags & F_SVID_RND) && (pkt_dev->svlan_id != 0xffff)) {
- pkt_dev->svlan_id = random32() & (4096 - 1);
+ pkt_dev->svlan_id = prandom_u32() & (4096 - 1);
}

if (pkt_dev->udp_src_min < pkt_dev->udp_src_max) {
if (pkt_dev->flags & F_UDPSRC_RND)
- pkt_dev->cur_udp_src = random32() %
+ pkt_dev->cur_udp_src = prandom_u32() %
(pkt_dev->udp_src_max - pkt_dev->udp_src_min)
+ pkt_dev->udp_src_min;

@@ -2341,7 +2341,7 @@ static void mod_cur_headers(struct pktgen_dev *pkt_dev)

if (pkt_dev->udp_dst_min < pkt_dev->udp_dst_max) {
if (pkt_dev->flags & F_UDPDST_RND) {
- pkt_dev->cur_udp_dst = random32() %
+ pkt_dev->cur_udp_dst = prandom_u32() %
(pkt_dev->udp_dst_max - pkt_dev->udp_dst_min)
+ pkt_dev->udp_dst_min;
} else {
@@ -2358,7 +2358,7 @@ static void mod_cur_headers(struct pktgen_dev *pkt_dev)
if (imn < imx) {
__u32 t;
if (pkt_dev->flags & F_IPSRC_RND)
- t = random32() % (imx - imn) + imn;
+ t = prandom_u32() % (imx - imn) + imn;
else {
t = ntohl(pkt_dev->cur_saddr);
t++;
@@ -2379,7 +2379,7 @@ static void mod_cur_headers(struct pktgen_dev *pkt_dev)
__be32 s;
if (pkt_dev->flags & F_IPDST_RND) {

- t = random32() % (imx - imn) + imn;
+ t = prandom_u32() % (imx - imn) + imn;
s = htonl(t);

while (ipv4_is_loopback(s) ||
@@ -2387,7 +2387,8 @@ static void mod_cur_headers(struct pktgen_dev *pkt_dev)
ipv4_is_lbcast(s) ||
ipv4_is_zeronet(s) ||
ipv4_is_local_multicast(s)) {
- t = random32() % (imx - imn) + imn;
+ t = prandom_u32() %
+ (imx - imn) + imn;
s = htonl(t);
}
pkt_dev->cur_daddr = s;
@@ -2420,7 +2421,7 @@ static void mod_cur_headers(struct pktgen_dev *pkt_dev)

for (i = 0; i < 4; i++) {
pkt_dev->cur_in6_daddr.s6_addr32[i] =
- (((__force __be32)random32() |
+ (((__force __be32)prandom_u32() |
pkt_dev->min_in6_daddr.s6_addr32[i]) &
pkt_dev->max_in6_daddr.s6_addr32[i]);
}
@@ -2430,7 +2431,7 @@ static void mod_cur_headers(struct pktgen_dev *pkt_dev)
if (pkt_dev->min_pkt_size < pkt_dev->max_pkt_size) {
__u32 t;
if (pkt_dev->flags & F_TXSIZE_RND) {
- t = random32() %
+ t = prandom_u32() %
(pkt_dev->max_pkt_size - pkt_dev->min_pkt_size)
+ pkt_dev->min_pkt_size;
} else {
diff --git a/net/core/stream.c b/net/core/stream.c
index f5df85d..6881f0c 100644
--- a/net/core/stream.c
+++ b/net/core/stream.c
@@ -122,7 +122,7 @@ int sk_stream_wait_memory(struct sock *sk, long *timeo_p)
DEFINE_WAIT(wait);

if (sk_stream_memory_free(sk))
- current_timeo = vm_wait = (net_random() % (HZ / 5)) + 2;
+ current_timeo = vm_wait = (prandom_u32() % (HZ / 5)) + 2;

while (1) {
set_bit(SOCK_ASYNC_NOSPACE, &sk->sk_socket->flags);
--
1.7.11.7


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