From ee89b850fe2eb2f4c086a99fd171fce66352bde2 Mon Sep 17 00:00:00 2001
From: Marc Hartmayer <mhartmay@linux.ibm.com>
Date: Mon, 4 Oct 2021 13:38:18 +0000
Subject: [PATCH] zdump: dfo_elf: notes_init: use `PTR_DIFF`
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Use `PTR_DIFF` since this is exactly what is done here.

Reviewed-by: Alexander Egorenkov <egorenar@linux.ibm.com>
Signed-off-by: Marc Hartmayer <mhartmay@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
---
 zdump/dfo_elf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/zdump/dfo_elf.c b/zdump/dfo_elf.c
index 3fe0570e..93f7c4b6 100644
--- a/zdump/dfo_elf.c
+++ b/zdump/dfo_elf.c
@@ -270,7 +270,7 @@ out:
 	memset(phdr, 0, sizeof(*phdr));
 	phdr->p_type = PT_NOTE;
 	phdr->p_offset = notes_offset;
-	phdr->p_filesz = (unsigned long) PTR_SUB(ptr, ptr_start);
+	phdr->p_filesz = PTR_DIFF(ptr, ptr_start);
 	return ptr;
 }