From 236c448cb6e7f82096101e1ace4b77f8b38f82c8 Mon Sep 17 00:00:00 2001 From: Johannes Stezenbach <js@sig21.net> Date: Thu, 8 Sep 2011 15:39:15 +0200 Subject: [PATCH] usbmon vs. tcpdump: fix dropped packet count Report the number of dropped packets instead of zero when using the binary usbmon interface with tcpdump. # tcpdump -i usbmon1 -w dump tcpdump: listening on usbmon1, link-type USB_LINUX_MMAPPED (USB with padded Linux header), capture size 65535 bytes ^C2155 packets captured 2155 packets received by filter 1019 packets dropped by kernel Signed-off-by: Johannes Stezenbach <js@sig21.net> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> --- drivers/usb/mon/mon_bin.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/mon/mon_bin.c b/drivers/usb/mon/mon_bin.c index a09dbd243eb37..a04b2ff9dd832 100644 --- a/drivers/usb/mon/mon_bin.c +++ b/drivers/usb/mon/mon_bin.c @@ -1101,7 +1101,7 @@ static long mon_bin_ioctl(struct file *file, unsigned int cmd, unsigned long arg nevents = mon_bin_queued(rp); sp = (struct mon_bin_stats __user *)arg; - if (put_user(rp->cnt_lost, &sp->dropped)) + if (put_user(ndropped, &sp->dropped)) return -EFAULT; if (put_user(nevents, &sp->queued)) return -EFAULT; -- 2.30.2