diff options
author | Yann Droneaud <ydroneaud@opteya.com> | 2014-11-17 23:02:19 +0000 |
---|---|---|
committer | Sasha Levin <sasha.levin@oracle.com> | 2015-08-27 13:26:01 -0400 |
commit | c4a7bf89fbff80e1ced7ca53c51f81231ace912c (patch) | |
tree | 7414d675cc8978952fd3e1f4e834095445808fbb /net/irda | |
parent | 061302c50682840cc9fa7dc492c5ef1407d897a2 (diff) |
arm64/mm: Remove hack in mmap randomize layout
[ Upstream commit d6c763afab142a85e4770b4bc2a5f40f256d5c5d ]
Since commit 8a0a9bd4db63 ('random: make get_random_int() more
random'), get_random_int() returns a random value for each call,
so comment and hack introduced in mmap_rnd() as part of commit
1d18c47c735e ('arm64: MMU fault handling and page table management')
are incorrects.
Commit 1d18c47c735e seems to use the same hack introduced by
commit a5adc91a4b44 ('powerpc: Ensure random space between stack
and mmaps'), latter copied in commit 5a0efea09f42 ('sparc64: Sharpen
address space randomization calculations.').
But both architectures were cleaned up as part of commit
fa8cbaaf5a68 ('powerpc+sparc64/mm: Remove hack in mmap randomize
layout') as hack is no more needed since commit 8a0a9bd4db63.
So the present patch removes the comment and the hack around
get_random_int() on AArch64's mmap_rnd().
Cc: David S. Miller <davem@davemloft.net>
Cc: Anton Blanchard <anton@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Will Deacon <will.deacon@arm.com>
Acked-by: Dan McGee <dpmcgee@gmail.com>
Signed-off-by: Yann Droneaud <ydroneaud@opteya.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Diffstat (limited to 'net/irda')
0 files changed, 0 insertions, 0 deletions