pktgen: adjust flag NO_TIMESTAMP to be more pktgen compliant
Allow flag NO_TIMESTAMP to turn timestamping on again, like other flags,
with a negation of the flag like !NO_TIMESTAMP.
Also document the option flag NO_TIMESTAMP.
Fixes: afb84b626184 ("pktgen: add flag NO_TIMESTAMP to disable timestamping")
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/Documentation/networking/pktgen.txt b/Documentation/networking/pktgen.txt
index 0344f1d..6199ee6 100644
--- a/Documentation/networking/pktgen.txt
+++ b/Documentation/networking/pktgen.txt
@@ -145,6 +145,7 @@
UDPCSUM,
IPSEC # IPsec encapsulation (needs CONFIG_XFRM)
NODE_ALLOC # node specific memory allocation
+ NO_TIMESTAMP # disable timestamping
pgset spi SPI_VALUE Set specific SA used to transform packet.
@@ -287,6 +288,7 @@
UDPCSUM
IPSEC
NODE_ALLOC
+ NO_TIMESTAMP
dst_min
dst_max
diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index 508155b..43bb215 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -1267,6 +1267,9 @@
else if (strcmp(f, "NO_TIMESTAMP") == 0)
pkt_dev->flags |= F_NO_TIMESTAMP;
+ else if (strcmp(f, "!NO_TIMESTAMP") == 0)
+ pkt_dev->flags &= ~F_NO_TIMESTAMP;
+
else {
sprintf(pg_result,
"Flag -:%s:- unknown\nAvailable flags, (prepend ! to un-set flag):\n%s",