tree aeddc0dd01e9e9f5a690f90ddb1bfb7a588ea929
parent 9a95b9e7416c2e7fa799e54078a1adf84a7ed0bf
author Pawel Moll <pawel.moll@arm.com> 1327574831 +0100
committer Russell King <rmk+kernel@arm.linux.org.uk> 1327699598 +0000

ARM: 7304/1: ioremap: fix boundary check when reusing static mapping

Since commit 576d2f2525612ecb5af029a76f21f22a3b82563d "ARM: add
generic ioremap optimization by reusing static mappings" ioremap()
is trying to reuse existing static mapping when possible.

The condition checking boundaries of the requested and existing
mappings didn't take in-page offset into consideration though,
which lead to obscure and hard to debug problems when requested
mapping crossed end of the static one.

Signed-off-by: Pawel Moll <pawel.moll@arm.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>