[PATCH 25/26] MdeModulePkg Tcp4Dxe: Remove redundant functions

[shenglei <shenglei.zhang@intel.com>]

The functions that are never called have been removed.
They are SockRcvdErr,SockGroup and TcpPawsOK.
https://bugzilla.tianocore.org/show_bug.cgi?id=1062

Cc: Star Zeng <star.zeng@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: shenglei <shenglei.zhang@intel.com>
---
 .../Universal/Network/Tcp4Dxe/SockImpl.c      | 35 ----------------
 .../Universal/Network/Tcp4Dxe/SockInterface.c | 41 -------------------
 .../Universal/Network/Tcp4Dxe/Socket.h        | 32 ---------------
 .../Universal/Network/Tcp4Dxe/Tcp4Option.c    | 28 -------------
 .../Universal/Network/Tcp4Dxe/Tcp4Option.h    | 15 -------
 5 files changed, 151 deletions(-)

diff --git a/MdeModulePkg/Universal/Network/Tcp4Dxe/SockImpl.c b/MdeModulePkg/Universal/Network/Tcp4Dxe/SockImpl.c
index 0476077c20..adb5aa35cd 100644
--- a/MdeModulePkg/Universal/Network/Tcp4Dxe/SockImpl.c
+++ b/MdeModulePkg/Universal/Network/Tcp4Dxe/SockImpl.c
@@ -1107,41 +1107,6 @@ SockGetFreeSpace (
 }
 
 
-/**
-  Signal the receive token with the specific error or
-  set socket error code after error is received.
-
-  @param  Sock                  Pointer to the socket.
-  @param  Error                 The error code received.
-
-**/
-VOID
-SockRcvdErr (
-  IN OUT SOCKET       *Sock,
-  IN     EFI_STATUS   Error
-  )
-{
-  SOCK_TOKEN  *SockToken;
-
-  if (!IsListEmpty (&Sock->RcvTokenList)) {
-
-    SockToken = NET_LIST_HEAD (
-                  &Sock->RcvTokenList,
-                  SOCK_TOKEN,
-                  TokenList
-                  );
-
-    RemoveEntryList (&SockToken->TokenList);
-
-    SIGNAL_TOKEN (SockToken->Token, Error);
-
-    FreePool (SockToken);
-  } else {
-
-    SOCK_ERROR (Sock, Error);
-  }
-}
-
 
 /**
   Called by the low layer protocol to indicate that there will be no more data
diff --git a/MdeModulePkg/Universal/Network/Tcp4Dxe/SockInterface.c b/MdeModulePkg/Universal/Network/Tcp4Dxe/SockInterface.c
index 6dbabc4e51..cd20b8bcb2 100644
--- a/MdeModulePkg/Universal/Network/Tcp4Dxe/SockInterface.c
+++ b/MdeModulePkg/Universal/Network/Tcp4Dxe/SockInterface.c
@@ -938,48 +938,7 @@ SockGetMode (
 }
 
 
-/**
-  Configure the low level protocol to join a multicast group for
-  this socket's connection.
-
-  @param  Sock                 Pointer to the socket of the connection to join the
-                               specific multicast group.
-  @param  GroupInfo            Pointer to the multicast group info.
-
-  @retval EFI_SUCCESS          The configuration is done successfully.
-  @retval EFI_ACCESS_DENIED    Failed to get the lock to access the socket.
-  @retval EFI_NOT_STARTED      The socket is not configured.
-
-**/
-EFI_STATUS
-SockGroup (
-  IN SOCKET *Sock,
-  IN VOID   *GroupInfo
-  )
-{
-  EFI_STATUS  Status;
-
-  Status = EfiAcquireLockOrFail (&(Sock->Lock));
-
-  if (EFI_ERROR (Status)) {
 
-    DEBUG ((EFI_D_ERROR, "SockGroup: Get the access for socket"
-      " failed with %r", Status));
-
-    return EFI_ACCESS_DENIED;
-  }
-
-  if (SOCK_IS_UNCONFIGURED (Sock)) {
-    Status = EFI_NOT_STARTED;
-    goto Exit;
-  }
-
-  Status = Sock->ProtoHandler (Sock, SOCK_GROUP, GroupInfo);
-
-Exit:
-  EfiReleaseLock (&(Sock->Lock));
-  return Status;
-}
 
 
 /**
diff --git a/MdeModulePkg/Universal/Network/Tcp4Dxe/Socket.h b/MdeModulePkg/Universal/Network/Tcp4Dxe/Socket.h
index 7ff2fc565e..650a7dd865 100644
--- a/MdeModulePkg/Universal/Network/Tcp4Dxe/Socket.h
+++ b/MdeModulePkg/Universal/Network/Tcp4Dxe/Socket.h
@@ -550,19 +550,6 @@ SockClone (
   IN SOCKET *Sock
   );
 
-/**
-  Signal the receive token with the specific error or
-  set socket error code after error is received.
-
-  @param  Sock                  Pointer to the socket.
-  @param  Error                 The error code received.
-
-**/
-VOID
-SockRcvdErr (
-  IN OUT SOCKET       *Sock,
-  IN     EFI_STATUS   Error
-  );
 
 ///
 /// Proto type of the create callback
@@ -909,25 +896,6 @@ SockGetMode (
   IN OUT VOID   *Mode
   );
 
-/**
-  Configure the low level protocol to join a multicast group for
-  this socket's connection.
-
-  @param  Sock                 Pointer to the socket of the connection to join the
-                               specific multicast group.
-  @param  GroupInfo            Pointer to the multicast group info.
-
-  @retval EFI_SUCCESS          The configuration is done successfully.
-  @retval EFI_ACCESS_DENIED    Failed to get the lock to access the socket.
-  @retval EFI_NOT_STARTED      The socket is not configured.
-
-**/
-EFI_STATUS
-SockGroup (
-  IN SOCKET *Sock,
-  IN VOID   *GroupInfo
-  );
-
 /**
   Add or remove route information in IP route table associated
   with this socket.
diff --git a/MdeModulePkg/Universal/Network/Tcp4Dxe/Tcp4Option.c b/MdeModulePkg/Universal/Network/Tcp4Dxe/Tcp4Option.c
index 2817b80295..e84310f6c6 100644
--- a/MdeModulePkg/Universal/Network/Tcp4Dxe/Tcp4Option.c
+++ b/MdeModulePkg/Universal/Network/Tcp4Dxe/Tcp4Option.c
@@ -350,31 +350,3 @@ TcpParseOption (
 }
 
 
-/**
-  Check the segment against PAWS.
-
-  @param  Tcb     Pointer to the TCP_CB of this TCP instance.
-  @param  TSVal   The timestamp value.
-
-  @retval 1       The segment passed the PAWS check.
-  @retval 0       The segment failed to pass the PAWS check.
-
-**/
-UINT32
-TcpPawsOK (
-  IN TCP_CB *Tcb,
-  IN UINT32 TSVal
-  )
-{
-  //
-  // PAWS as defined in RFC1323, buggy...
-  //
-  if (TCP_TIME_LT (TSVal, Tcb->TsRecent) &&
-      TCP_TIME_LT (Tcb->TsRecentAge + TCP_PAWS_24DAY, mTcpTick)) {
-
-    return 0;
-
-  }
-
-  return 1;
-}
diff --git a/MdeModulePkg/Universal/Network/Tcp4Dxe/Tcp4Option.h b/MdeModulePkg/Universal/Network/Tcp4Dxe/Tcp4Option.h
index 5185aecea8..f9782cb598 100644
--- a/MdeModulePkg/Universal/Network/Tcp4Dxe/Tcp4Option.h
+++ b/MdeModulePkg/Universal/Network/Tcp4Dxe/Tcp4Option.h
@@ -126,20 +126,5 @@ TcpParseOption (
   IN OUT TCP_OPTION *Option
   );
 
-/**
-  Check the segment against PAWS.
-
-  @param  Tcb     Pointer to the TCP_CB of this TCP instance.
-  @param  TSVal   The timestamp value.
-
-  @retval 1       The segment passed the PAWS check.
-  @retval 0       The segment failed to pass the PAWS check.
-
-**/
-UINT32
-TcpPawsOK (
-  IN TCP_CB *Tcb,
-  IN UINT32 TSVal
-  );
 
 #endif
-- 
2.18.0.windows.1