X-Git-Url: https://git.proxmox.com/?a=blobdiff_plain;f=MdeModulePkg%2FLibrary%2FGenericBdsLib%2FDevicePath.c;h=135fa63d1a018995d57a80f652243aad6115ded7;hb=e56187913724379012649c0411668f94ac2ffd9f;hp=421bba00cb37119e2961d6e50b2aab1fa1693f5b;hpb=d777486198d8ec66e2f461a641d505f4063e1e5e;p=mirror_edk2.git

diff --git a/MdeModulePkg/Library/GenericBdsLib/DevicePath.c b/MdeModulePkg/Library/GenericBdsLib/DevicePath.c
index 421bba00cb..135fa63d1a 100644
--- a/MdeModulePkg/Library/GenericBdsLib/DevicePath.c
+++ b/MdeModulePkg/Library/GenericBdsLib/DevicePath.c
@@ -19,15 +19,13 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
   Concatenates a formatted unicode string to allocated pool.
   The caller must free the resulting buffer.
 
-  @param  Str      Tracks the allocated pool, size in use, and  amount of pool
-                   allocated.
+  @param  Str      Tracks the allocated pool, size in use, and amount of pool allocated.
   @param  fmt      The format string
-
-  @param  ...      Variable argument list.
+  @param  ...      The data will be printed.
 
   @return Allocated buffer with the formatted string printed in it.
-          The caller must free the allocated buffer.   The buffer
-          allocation is not packed.
+          The caller must free the allocated buffer.
+          The buffer allocation is not packed.
 
 **/
 CHAR16 *
@@ -172,13 +170,10 @@ DevPathController (
 
 
 /**
-  Convert Device Path to a Unicode string for printing.
+  Convert Vendor device path to device name.
 
-  @param Str             The buffer holding the output string.
-                         This buffer contains the length of the
-                         string and the maixmum length reserved
-                         for the string buffer.
-  @param DevPath         The device path.
+  @param  Str      The buffer store device name
+  @param  DevPath  Pointer to vendor device path
 
 **/
 VOID
@@ -1480,10 +1475,6 @@ DevicePathToStr (
     //
     DevPathNode = NextDevicePathNode (DevPathNode);
   }
-  //
-  // Shrink pool used for string allocation
-  //
-  FreePool (DevPath);
 
 Done:
   NewSize = (Str.len + 1) * sizeof (CHAR16);
@@ -1492,45 +1483,3 @@ Done:
   Str.str[Str.len] = 0;
   return Str.str;
 }
-
-/**
-  Function creates a device path data structure that identically matches the
-  device path passed in.
-
-  @param  DevPath  A pointer to a device path data structure.
-
-  @return The new copy of DevPath is created to identically match the input.
-  @return Otherwise, NULL is returned.
-
-**/
-EFI_DEVICE_PATH_PROTOCOL *
-LibDuplicateDevicePathInstance (
-  IN EFI_DEVICE_PATH_PROTOCOL  *DevPath
-  )
-{
-  EFI_DEVICE_PATH_PROTOCOL  *NewDevPath;
-  EFI_DEVICE_PATH_PROTOCOL  *DevicePathInst;
-  EFI_DEVICE_PATH_PROTOCOL  *Temp;
-  UINTN                     Size;
-
-  //
-  // get the size of an instance from the input
-  //
-  Temp            = DevPath;
-  DevicePathInst  = GetNextDevicePathInstance (&Temp, &Size);
-
-  //
-  // Make a copy
-  //
-  NewDevPath = NULL;
-  if (Size != 0) {
-    NewDevPath = AllocateZeroPool (Size);
-    ASSERT (NewDevPath != NULL);
-  }
-
-  if (NewDevPath != NULL) {
-    CopyMem (NewDevPath, DevicePathInst, Size);
-  }
-
-  return NewDevPath;
-}