AMD Llano, Brazos boards: Use `sizeof(var)` to get its size

Change `sizeof(type) * n`, where n is the number of array
elements, to `sizeof(variable)` to directly get the size of the
variable (struct, array). Determining the size by counting array
elements is error prone and unnecessary.

Rudolf Marek’s patch »ASUS F2A85-M: Correct and clean up PCIe
config« [1] contains the same change and is ported over. In
the commit message Rudolf makes the following comment.

»Not sure why the copy is needed instead of direct reference.
Maybe it has something to do with CAR?«

Testing on the ASRock E350M1, no regressions were noticed.

[1] http://review.coreboot.org/#/c/3194/

Change-Id: I123031b3819a10c9c85577fdca96c70d9c992e87
Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-on: http://review.coreboot.org/3248
Tested-by: build bot (Jenkins)
Reviewed-by: Bruce Griffith <Bruce.Griffith@se-eng.com>

1 files changed, 9 insertions, 11 deletions

diff --git a/src/mainboard/amd/union_station/PlatformGnbPcie.c b/src/mainboard/amd/union_station/PlatformGnbPcie.c
index 98dd9954b3..829b6c9bd8 100644
--- a/src/mainboard/amd/union_station/PlatformGnbPcie.c
+++ b/src/mainboard/amd/union_station/PlatformGnbPcie.c
@@ -118,9 +118,7 @@ PCIe_COMPLEX_DESCRIPTOR Brazos = {
   //
   // Allocate buffer for PCIe_COMPLEX_DESCRIPTOR , PCIe_PORT_DESCRIPTOR and PCIe_DDI_DESCRIPTOR
   //
-  AllocHeapParams.RequestedBufferSize = sizeof (PCIe_COMPLEX_DESCRIPTOR)  +
-                                        sizeof (PCIe_PORT_DESCRIPTOR) * 5 +
-                                        sizeof (PCIe_DDI_DESCRIPTOR) * 2;
+  AllocHeapParams.RequestedBufferSize = sizeof(Brazos) + sizeof(PortList) + sizeof(DdiList);
 
   AllocHeapParams.BufferHandle = AMD_MEM_MISC_HANDLES_START;
   AllocHeapParams.Persist = HEAP_LOCAL_CACHE;
@@ -133,30 +131,30 @@ PCIe_COMPLEX_DESCRIPTOR Brazos = {
 
   BrazosPcieComplexListPtr  =  (PCIe_COMPLEX_DESCRIPTOR *) AllocHeapParams.BufferPtr;
 
-  AllocHeapParams.BufferPtr += sizeof (PCIe_COMPLEX_DESCRIPTOR);
+  AllocHeapParams.BufferPtr += sizeof(Brazos);
   BrazosPciePortPtr         =  (PCIe_PORT_DESCRIPTOR *)AllocHeapParams.BufferPtr;
 
-  AllocHeapParams.BufferPtr += sizeof (PCIe_PORT_DESCRIPTOR) * 5;
+  AllocHeapParams.BufferPtr += sizeof(PortList);
   BrazosPcieDdiPtr          =  (PCIe_DDI_DESCRIPTOR *) AllocHeapParams.BufferPtr;
 
   LibAmdMemFill (BrazosPcieComplexListPtr,
                    0,
-                   sizeof (PCIe_COMPLEX_DESCRIPTOR),
+                   sizeof(Brazos),
                    &InitEarly->StdHeader);
 
   LibAmdMemFill (BrazosPciePortPtr,
                    0,
-                   sizeof (PCIe_PORT_DESCRIPTOR) * 5,
+                   sizeof(PortList),
                    &InitEarly->StdHeader);
 
   LibAmdMemFill (BrazosPcieDdiPtr,
                    0,
-                   sizeof (PCIe_DDI_DESCRIPTOR) * 2,
+                   sizeof(DdiList),
                    &InitEarly->StdHeader);
 
-  LibAmdMemCopy  (BrazosPcieComplexListPtr, &Brazos, sizeof (PCIe_COMPLEX_DESCRIPTOR), &InitEarly->StdHeader);
-  LibAmdMemCopy  (BrazosPciePortPtr, &PortList[0], sizeof (PCIe_PORT_DESCRIPTOR) * 5, &InitEarly->StdHeader);
-  LibAmdMemCopy  (BrazosPcieDdiPtr, &DdiList[0], sizeof (PCIe_DDI_DESCRIPTOR) *2, &InitEarly->StdHeader);
+  LibAmdMemCopy  (BrazosPcieComplexListPtr, &Brazos, sizeof(Brazos), &InitEarly->StdHeader);
+  LibAmdMemCopy  (BrazosPciePortPtr, &PortList[0], sizeof(PortList), &InitEarly->StdHeader);
+  LibAmdMemCopy  (BrazosPcieDdiPtr, &DdiList[0], sizeof(DdiList), &InitEarly->StdHeader);
 
 
   ((PCIe_COMPLEX_DESCRIPTOR*)BrazosPcieComplexListPtr)->PciePortList =  (PCIe_PORT_DESCRIPTOR*)BrazosPciePortPtr;