arm64: memory: Fix virt_addr_valid() using __is_lm_address()

virt_addr_valid() is intended to test whether or not the passed address
is a valid linear map address. Unfortunately, it relies on
_virt_addr_is_linear() which is broken because it assumes the linear
map is at the top of the address space, which it no longer is.

Reimplement virt_addr_valid() using __is_lm_address() and remove
_virt_addr_is_linear() entirely. At the same time, ensure we evaluate
the macro parameter only once and move it within the __ASSEMBLY__ block.

Reported-by: Qian Cai <[email protected]>
Reported-by: Geert Uytterhoeven <[email protected]>
Tested-by: Steve Capper <[email protected]>
Reviewed-by: Steve Capper <[email protected]>
Tested-by: Geert Uytterhoeven <[email protected]>
Reviewed-by: Catalin Marinas <[email protected]>
Reviewed-by: Mark Rutland <[email protected]>
Fixes: 14c127c957c1 ("arm64: mm: Flip kernel VA space")
Signed-off-by: Will Deacon <[email protected]>

0 files changed, 0 insertions, 0 deletions