[PATCH 1/8] ArmPlatformPkg/NorFlashDxe: correct NumOfLba vararg type in EraseBlocks()

[Laszlo Ersek <lersek@redhat.com>]

According to the PI spec, Volume 3,
EFI_FIRMWARE_VOLUME_BLOCK2_PROTOCOL.EraseBlocks():

> The variable argument list is a list of tuples. Each tuple describes a
> range of LBAs to erase and consists of the following:
> * An EFI_LBA that indicates the starting LBA
> * A UINTN that indicates the number of blocks to erase

(NB, in edk2, EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL is a typedef to
EFI_FIRMWARE_VOLUME_BLOCK2_PROTOCOL.)

In this driver, the NumOfLba local variable is defined with type UINTN,
but the TYPE argument passed to VA_ARG() is UINT32. Fix the mismatch.

In addition, update the DEBUG macro invocation where NumOfLba is formatted
with the %d conversion specifier: UINTN values should be converted to
UINT64 and printed with %Lu or %Lx for portability between 32-bit and
64-bit.

Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Leif Lindholm <leif.lindholm@linaro.org>
Reported-by: Jordan Justen <jordan.l.justen@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
---
 ArmPlatformPkg/Drivers/NorFlashDxe/NorFlashFvbDxe.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/ArmPlatformPkg/Drivers/NorFlashDxe/NorFlashFvbDxe.c b/ArmPlatformPkg/Drivers/NorFlashDxe/NorFlashFvbDxe.c
index 12a861267a86..3ea858f46ffb 100644
--- a/ArmPlatformPkg/Drivers/NorFlashDxe/NorFlashFvbDxe.c
+++ b/ArmPlatformPkg/Drivers/NorFlashDxe/NorFlashFvbDxe.c
@@ -628,10 +628,16 @@ FvbEraseBlocks (
     }
 
     // How many Lba blocks are we requested to erase?
-    NumOfLba = VA_ARG (Args, UINT32);
+    NumOfLba = VA_ARG (Args, UINTN);
 
     // All blocks must be within range
-    DEBUG ((DEBUG_BLKIO, "FvbEraseBlocks: Check if: ( StartingLba=%ld + NumOfLba=%d - 1 ) > LastBlock=%ld.\n", Instance->StartLba + StartingLba, NumOfLba, Instance->Media.LastBlock));
+    DEBUG ((
+      DEBUG_BLKIO,
+      "FvbEraseBlocks: Check if: ( StartingLba=%ld + NumOfLba=%Lu - 1 ) > LastBlock=%ld.\n",
+      Instance->StartLba + StartingLba,
+      (UINT64)NumOfLba,
+      Instance->Media.LastBlock
+      ));
     if ((NumOfLba == 0) || ((Instance->StartLba + StartingLba + NumOfLba - 1) > Instance->Media.LastBlock)) {
       VA_END (Args);
       DEBUG ((EFI_D_ERROR, "FvbEraseBlocks: ERROR - Lba range goes past the last Lba.\n"));
@@ -656,7 +662,7 @@ FvbEraseBlocks (
     }
 
     // How many Lba blocks are we requested to erase?
-    NumOfLba = VA_ARG (Args, UINT32);
+    NumOfLba = VA_ARG (Args, UINTN);
 
     // Go through each one and erase it
     while (NumOfLba > 0) {
-- 
2.9.3