From: Vasily Gorbik <gor@linux.ibm.com>
Date: Mon, 19 Aug 2019 21:14:10 +0000 (+0200)
Subject: s390/mem_detect: provide single get_mem_detect_end
X-Git-Tag: v5.4-rc1~156^2~19
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=9b692102d87d13d24c97461207cae259121ed44b;p=thirdparty%2Fkernel%2Flinux.git

s390/mem_detect: provide single get_mem_detect_end

get_mem_detect_end is already used in couple of places with potential
to be utilized in more cases. Provide single get_mem_detect_end
implementation in asm/mem_detect.h to be used by kasan and startup code.

Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
---

diff --git a/arch/s390/boot/mem_detect.c b/arch/s390/boot/mem_detect.c
index 5d316fe404804..62e7c13ce85c7 100644
--- a/arch/s390/boot/mem_detect.c
+++ b/arch/s390/boot/mem_detect.c
@@ -63,13 +63,6 @@ void add_mem_detect_block(u64 start, u64 end)
 	mem_detect.count++;
 }
 
-static unsigned long get_mem_detect_end(void)
-{
-	if (mem_detect.count)
-		return __get_mem_detect_block_ptr(mem_detect.count - 1)->end;
-	return 0;
-}
-
 static int __diag260(unsigned long rx1, unsigned long rx2)
 {
 	register unsigned long _rx1 asm("2") = rx1;
diff --git a/arch/s390/include/asm/mem_detect.h b/arch/s390/include/asm/mem_detect.h
index 6114b92ab667b..a7c922a690509 100644
--- a/arch/s390/include/asm/mem_detect.h
+++ b/arch/s390/include/asm/mem_detect.h
@@ -79,4 +79,16 @@ static inline void get_mem_detect_reserved(unsigned long *start,
 		*size = 0;
 }
 
+static inline unsigned long get_mem_detect_end(void)
+{
+	unsigned long start;
+	unsigned long end;
+
+	if (mem_detect.count) {
+		__get_mem_detect_block(mem_detect.count - 1, &start, &end);
+		return end;
+	}
+	return 0;
+}
+
 #endif
diff --git a/arch/s390/mm/kasan_init.c b/arch/s390/mm/kasan_init.c
index 0c1f257be4222..4a61bc9553882 100644
--- a/arch/s390/mm/kasan_init.c
+++ b/arch/s390/mm/kasan_init.c
@@ -236,18 +236,6 @@ static void __init kasan_early_detect_facilities(void)
 	}
 }
 
-static unsigned long __init get_mem_detect_end(void)
-{
-	unsigned long start;
-	unsigned long end;
-
-	if (mem_detect.count) {
-		__get_mem_detect_block(mem_detect.count - 1, &start, &end);
-		return end;
-	}
-	return 0;
-}
-
 void __init kasan_early_init(void)
 {
 	unsigned long untracked_mem_end;