net-next: docs: Fix typos in snmp_counter.rst

This patch fixes some spelling typos in snmp_counter.rst
Signed-off-by: NMasanari Iida <standby24x7@gmail.com>
Reviewed-by: NRandy Dunlap <rdunlap@infradead.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Documentation/networking/snmp_counter.rst

@@ -314,7 +314,7 @@ https://lwn.net/Articles/576263/
 * TcpExtTCPOrigDataSent
 
 This counter is explained by `kernel commit f19c29e3e391`_, I pasted the
-explaination below::
+explanation below::
 
   TCPOrigDataSent: number of outgoing packets with original data (excluding
   retransmission but including data-in-SYN). This counter is different from
@@ -324,7 +324,7 @@ explaination below::
 * TCPSynRetrans
 
 This counter is explained by `kernel commit f19c29e3e391`_, I pasted the
-explaination below::
+explanation below::
 
   TCPSynRetrans: number of SYN and SYN/ACK retransmits to break down
   retransmissions into SYN, fast-retransmits, timeout retransmits, etc.
@@ -332,7 +332,7 @@ explaination below::
 * TCPFastOpenActiveFail
 
 This counter is explained by `kernel commit f19c29e3e391`_, I pasted the
-explaination below::
+explanation below::
 
   TCPFastOpenActiveFail: Fast Open attempts (SYN/data) failed because
   the remote does not accept it or the attempts timed out.
@@ -382,7 +382,7 @@ Defined in `RFC1213 tcpAttemptFails`_.
 
 Defined in `RFC1213 tcpOutRsts`_. The RFC says this counter indicates
 the 'segments sent containing the RST flag', but in linux kernel, this
-couner indicates the segments kerenl tried to send. The sending
+counter indicates the segments kernel tried to send. The sending
 process might be failed due to some errors (e.g. memory alloc failed).
 
 .. _RFC1213 tcpOutRsts: https://tools.ietf.org/html/rfc1213#page-52
@@ -700,7 +700,7 @@ SACK option could have up to 4 blocks, they are checked
 individually. E.g., if 3 blocks of a SACk is invalid, the
 corresponding counter would be updated 3 times. The comment of the
 `Add counters for discarded SACK blocks`_ patch has additional
-explaination:
+explanation:
 
 .. _Add counters for discarded SACK blocks: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=18f02545a9a16c9a89778b91a162ad16d510bb32
 
@@ -829,7 +829,7 @@ PAWS check fails or the received sequence number is out of window.
 
 * TcpExtTCPACKSkippedTimeWait
 
-Tha ACK is skipped in Time-Wait status, the reason would be either
+The ACK is skipped in Time-Wait status, the reason would be either
 PAWS check failed or the received sequence number is out of window.
 
 * TcpExtTCPACKSkippedChallenge
@@ -984,7 +984,7 @@ TcpExtSyncookiesRecv counter wont be updated.
 
 Challenge ACK
 =============
-For details of challenge ACK, please refer the explaination of
+For details of challenge ACK, please refer the explanation of
 TcpExtTCPACKSkippedChallenge.
 
 * TcpExtTCPChallengeACK
@@ -1002,7 +1002,7 @@ prune
 =====
 When a socket is under memory pressure, the TCP stack will try to
 reclaim memory from the receiving queue and out of order queue. One of
-the reclaiming method is 'collapse', which means allocate a big sbk,
+the reclaiming method is 'collapse', which means allocate a big skb,
 copy the contiguous skbs to the single big skb, and free these
 contiguous skbs.
 
@@ -1163,7 +1163,7 @@ The server side nstat output::
   IpExtOutOctets                  52                 0.0
   IpExtInNoECTPkts                1                  0.0
 
-Input a string in nc client side again ('world' in our exmaple)::
+Input a string in nc client side again ('world' in our example)::
 
   nstatuser@nstat-a:~$ nc -v nstat-b 9000
   Connection to nstat-b 9000 port [tcp/*] succeeded!
@@ -1211,7 +1211,7 @@ replied an ACK. But kernel handled them in different ways. When the
 TCP window scale option is not used, kernel will try to enable fast
 path immediately when the connection comes into the established state,
 but if the TCP window scale option is used, kernel will disable the
-fast path at first, and try to enable it after kerenl receives
+fast path at first, and try to enable it after kernel receives
 packets. We could use the 'ss' command to verify whether the window
 scale option is used. e.g. run below command on either server or
 client::
@@ -1343,7 +1343,7 @@ Check TcpExtTCPAbortOnMemory on client::
   nstatuser@nstat-a:~$ nstat | grep -i abort
   TcpExtTCPAbortOnMemory          54                 0.0
 
-Check orphane socket count on client::
+Check orphaned socket count on client::
 
   nstatuser@nstat-a:~$ ss -s
   Total: 131 (kernel 0)
@@ -1685,7 +1685,7 @@ Send 3 SYN repeatly to nstat-b::
 
   nstatuser@nstat-a:~$ for i in {1..3}; do sudo tcpreplay -i ens3 /tmp/syn_fixcsum.pcap; done
 
-Check snmp cunter on nstat-b::
+Check snmp counter on nstat-b::
 
   nstatuser@nstat-b:~$ nstat | grep -i skip
   TcpExtTCPACKSkippedSynRecv      1                  0.0
@@ -1770,7 +1770,7 @@ string 'foo' in our example::
   Connection from nstat-a 42132 received!
   foo
 
-On nstat-a, the tcpdump should have caputred the ACK. We should check
+On nstat-a, the tcpdump should have captured the ACK. We should check
 the source port numbers of the two nc clients::
 
   nstatuser@nstat-a:~$ ss -ta '( dport = :9000 || dport = :9001 )' | tee
@@ -1778,7 +1778,7 @@ the source port numbers of the two nc clients::
   ESTAB  0        0            192.168.122.250:50208       192.168.122.251:9000
   ESTAB  0        0            192.168.122.250:42132       192.168.122.251:9001
 
-Run tcprewrite, change port 9001 to port 9000, chagne port 42132 to
+Run tcprewrite, change port 9001 to port 9000, change port 42132 to
 port 50208::
 
   nstatuser@nstat-a:~$ tcprewrite --infile /tmp/seq_pre.pcap --outfile /tmp/seq.pcap -r 9001:9000 -r 42132:50208 --fixcsum