[PATCH linux-next v3] docs: proc.rst: add softnet_stat to /proc/net table

[yang.yang29]

From: Yang Yang <yang.yang29@xxxxxxxxxx>

/proc/net/softnet_stat exists for a long time, but proc.rst miss it.
Softnet_stat shows some statistics of struct softnet_data of online
CPUs. Struct softnet_data manages incoming and output packets
on per-CPU queues. Note that fastroute and cpu_collision in
softnet_stat are obsolete and their value is always 0.

Signed-off-by: Yang Yang <yang.yang29@xxxxxxxxxx>
Reviewed-by: xu xin <xu.xin16@xxxxxxxxxx>
Reviewed-by: Zhang Yunkai <zhang.yunkai@xxxxxxxxxx>
---
Changes since v2: - refine patch subject and git log, thanks to Bagas Sanjaya.
Changes since v1: - refine patch subject
---
 Documentation/filesystems/proc.rst | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/filesystems/proc.rst b/Documentation/filesystems/proc.rst
index e224b6d5b642..9d5fd9424e8b 100644
--- a/Documentation/filesystems/proc.rst
+++ b/Documentation/filesystems/proc.rst
@@ -1284,6 +1284,7 @@ support this. Table 1-9 lists the files and their meaning.
  rt_cache      Routing cache
  snmp          SNMP data
  sockstat      Socket statistics
+ softnet_stat  Per-CPU incoming packets queues statistics of online CPUs
  tcp           TCP  sockets
  udp           UDP sockets
  unix          UNIX domain sockets
-- 
2.15.2