s390/mm: mmap base does not depend on ADDR_NO_RANDOMIZE personality

randomize_stack_top() checks for current task flag PF_RANDOMIZE in order
to use stack randomization and PF_RANDOMIZE is set when
ADDR_NO_RANDOMIZE is unset, so no need to check for ADDR_NO_RANDOMIZE
in stack_maxrandom_size.

[heiko.carstens@de.ibm.com]: See also commit 01578e36163c ("x86/elf:
Remove the unnecessary ADDR_NO_RANDOMIZE checks")

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>

diff --git a/arch/s390/mm/mmap.c b/arch/s390/mm/mmap.c
index 687f2a4..cbc718b 100644 (file)
--- a/arch/s390/mm/mmap.c
+++ b/arch/s390/mm/mmap.c
@@ -24,8 +24,6 @@ static unsigned long stack_maxrandom_size(void)
 {
        if (!(current->flags & PF_RANDOMIZE))
                return 0;
-       if (current->personality & ADDR_NO_RANDOMIZE)
-               return 0;
        return STACK_RND_MASK << PAGE_SHIFT;
 }