tree 5ff57feabe0538d58404ec4918b0d94d75f69846
parent 002547b4f86c27bfac5bae344b723d250857be6b
author Russell King <rmk@dyn-67.arm.linux.org.uk> 1150918697 +0100
committer Russell King <rmk+kernel@arm.linux.org.uk> 1151513986 +0100

[ARM] nommu: uaccess tweaks

MMUless systems have only one address space for all threads, so
both the usual access_ok() checks, and the exception handling do
not make much sense.

Hence, discard the fixup and exception tables at link time, use
memcpy/memset for the user copy/clearing functions, and define
the permission check macros to be constants.

Some of this patch was derived from the equivalent patch by
Hyok S. Choi.

Signed-off-by: Hyok S. Choi <hyok.choi@samsung.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>