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s390/mem_detect: provide single get_mem_detect_end

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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>
This commit is contained in:
Vasily Gorbik
2019-08-19 23:14:10 +02:00
parent 5f0917a281
commit 9b692102d8
3 changed files with 12 additions and 19 deletions
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7
arch/s390/boot/mem_detect.c
View File

@@ -63,13 +63,6 @@ void add_mem_detect_block(u64 start, u64 end)
mem_detect.count++; 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) static int __diag260(unsigned long rx1, unsigned long rx2)
{ {
register unsigned long _rx1 asm("2") = rx1; register unsigned long _rx1 asm("2") = rx1;

12
arch/s390/include/asm/mem_detect.h
View File

@@ -79,4 +79,16 @@ static inline void get_mem_detect_reserved(unsigned long *start,
*size = 0; *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 #endif

12
arch/s390/mm/kasan_init.c
View File

@@ -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) void __init kasan_early_init(void)
{ {
unsigned long untracked_mem_end; unsigned long untracked_mem_end;