From 567b722347239484d0b9ab0b42aeb24c1fe6b4e4 Mon Sep 17 00:00:00 2001 From: Alexandre Ghiti Date: Thu, 4 Apr 2019 02:19:56 -0400 Subject: 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 Signed-off-by: Heiko Carstens --- arch/s390/mm/mmap.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/arch/s390/mm/mmap.c b/arch/s390/mm/mmap.c index 687f2a4d3459..cbc718ba6d78 100644 --- 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; } -- cgit v1.2.3-59-g8ed1b