[PATCH net-next 0/2] net: drop_monitor: support drop reason

From: menglong8 . dong
Date: Tue Feb 08 2022 - 02:29:04 EST


From: Menglong Dong <imagedong@xxxxxxxxxxx>

This series patches is to make drop monitor supporting drop reason
and report it to user space.

In the first patch, we define the macro 'SKB_DR_MAX_LEN', which is
the max string length of drop reasons. We introduce this macro as
drop_monitor need to know the memory allocated for NET_DM_ATTR_REASON
in the second patch.

In the second patch, we report drop reasons as string to user space
in drop_monitor.


Menglong Dong (2):
net: skb: introduce SKB_DR_MAX_LEN
net: drop_monitor: support drop reason

include/trace/events/skb.h | 5 +++++
include/uapi/linux/net_dropmon.h | 1 +
net/core/drop_monitor.c | 34 ++++++++++++++++++++++++++++----
3 files changed, 36 insertions(+), 4 deletions(-)

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2.27.0