Alexandre Ghiti 9035bd2942 mips: use generic mmap top-down layout and brk randomization ... mips uses a top-down layout by default that exactly fits the generic functions, so get rid of arch specific code and use the generic version by selecting ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT. As ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT selects ARCH_HAS_ELF_RANDOMIZE, use the generic version of arch_randomize_brk since it also fits. Note that this commit also removes the possibility for mips to have elf randomization and no MMU: without MMU, the security added by randomization is worth nothing. Link: http://lkml.kernel.org/r/20190730055113.23635-14-alex@ghiti.fr Signed-off-by: Alexandre Ghiti <alex@ghiti.fr> Acked-by: Paul Burton <paul.burton@mips.com> Reviewed-by: Kees Cook <keescook@chromium.org> Reviewed-by: Luis Chamberlain <mcgrof@kernel.org> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: Christoph Hellwig <hch@lst.de> Cc: James Hogan <jhogan@kernel.org> Cc: Palmer Dabbelt <palmer@sifive.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Russell King <linux@armlinux.org.uk> Cc: Will Deacon <will.deacon@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2019-09-24 15:54:12 -07:00
..
c-octeon.c
c-r3k.c
c-r4k.c
c-tx39.c
cache.c
cerr-sb1.c
cex-gen.S
cex-oct.S
cex-sb1.S
context.c
dma-noncoherent.c
extable.c
fault.c
highmem.c
hugetlbpage.c
init.c	MIPS: Detect bad _PFN_SHIFT values	2019-09-20 14:55:07 -07:00
ioremap.c
Makefile
mmap.c	mips: use generic mmap top-down layout and brk randomization	2019-09-24 15:54:12 -07:00
page-funcs.S
page.c
pgtable-32.c
pgtable-64.c
pgtable.c
sc-debugfs.c
sc-ip22.c
sc-mips.c
sc-r5k.c
sc-rm7k.c
tlb-funcs.S
tlb-r3k.c
tlb-r4k.c
tlbex-fault.S
tlbex.c	MIPS: tlbex: Remove cpu_has_local_ebase	2019-09-03 14:20:54 +01:00
uasm-micromips.c
uasm-mips.c
uasm.c