On 05/26/2016 09:43 PM, Yang Shi wrote:

The upstream commit 1771c6e1a567ea0ba2cccc0a4ffe68a1419fd8ef
("x86/kasan: instrument user memory access API") added KASAN instrument to
x86 user memory access API, so added such instrument to ARM64 too.

Tested by test_kasan module.

Signed-off-by: Yang Shi <redacted>
---
 arch/arm64/include/asm/uaccess.h | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

Please, cover __copy_from_user() and __copy_to_user() too.
Unlike x86, your patch doesn't instrument these two.