3.19.8-ckt4 -stable review patch. If anyone has any objections, please let me know.
------------------
From: Jesper Dangaard Brouer <brouer@xxxxxxxxxx>
commit f1f00d8ff60ca056db3805406507483eeb3794d7 upstream.
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@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Kamal Mostafa <kamal@xxxxxxxxxxxxx>
---
Documentation/networking/pktgen.txt | 2 ++
net/core/pktgen.c | 3 +++
2 files changed, 5 insertions(+)
diff --git a/Documentation/networking/pktgen.txt b/Documentation/networking/pktgen.txt
index 6915c6b..5c606cd 100644
--- a/Documentation/networking/pktgen.txt
+++ b/Documentation/networking/pktgen.txt
@@ -145,6 +145,7 @@ Examples:
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.
@@ -285,6 +286,7 @@ flag
UDPCSUM
IPSEC
NODE_ALLOC
+ NO_TIMESTAMP
dst_min
dst_max
diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index 352d183..734e799 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -1267,6 +1267,9 @@ static ssize_t pktgen_if_write(struct file *file,
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",
--
1.9.1
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