From 09fddbaf90aa9fc0abd80332a191fbfd0158e22b Mon Sep 17 00:00:00 2001 From: Jason Cooper Date: Tue, 11 Oct 2016 13:54:05 -0700 Subject: [PATCH] tile: use simpler API for random address requests Currently, all callers to randomize_range() set the length to 0 and calculate end by adding a constant to the start address. We can simplify the API to remove a bunch of needless checks and variables. Use the new randomize_addr(start, range) call to set the requested address. Link: http://lkml.kernel.org/r/20160803233913.32511-6-jason@lakedaemon.net Signed-off-by: Jason Cooper Acked-by: Kees Cook Cc: "Theodore Ts'o" Cc: Chris Metcalf Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/tile/mm/mmap.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/arch/tile/mm/mmap.c b/arch/tile/mm/mmap.c index 851a94e6ae58..ef61c597898b 100644 --- a/arch/tile/mm/mmap.c +++ b/arch/tile/mm/mmap.c @@ -88,6 +88,5 @@ void arch_pick_mmap_layout(struct mm_struct *mm) unsigned long arch_randomize_brk(struct mm_struct *mm) { - unsigned long range_end = mm->brk + 0x02000000; - return randomize_range(mm->brk, range_end, 0) ? : mm->brk; + return randomize_page(mm->brk, 0x02000000); }