linuxmsm/laptops-kernel
0
0 Fork 0
mirror of https://github.com/linux-msm/laptops-kernel.git synced 2026-08-13 14:19:53 -07:00
Code Issues Packages Projects Releases Wiki Activity

pktgen: Allow on loopback device

Browse Source 
When pktgen is used to measure the performance of dev_queue_xmit()
packet handling in the core, it is preferable to not hand down
packets to a low-level Ethernet driver as it would distort the
measurements.

Allow using pktgen on the loopback device, thus constraining
measurements to core code.

Signed-off-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Lukas Wunner authored and David S. Miller committed 2020-03-10 15:44:59 -07:00
1 parent 62751b6808
commit 1e09e5818b
1 file changed
+2 -2
Download Patch File Download Diff File Expand all files Collapse all files
net/core/pktgen.c
+2 -2
View File
@@ -2003,8 +2003,8 @@ static int pktgen_setup_dev(const struct pktgen_net *pn,
return -ENODEV;
}
if (odev->type != ARPHRD_ETHER) {
pr_err("not an ethernet device: \"%s\"\n", ifname);
if (odev->type != ARPHRD_ETHER && odev->type != ARPHRD_LOOPBACK) {
pr_err("not an ethernet or loopback device: \"%s\"\n", ifname);
err = -EINVAL;
} else if (!netif_running(odev)) {
pr_err("device is down: \"%s\"\n", ifname);