Commits
Konstantin Khlebnikov committed 7e66cbc93f8
ARM: 8132/1: LPAE: drop wrong carry flag correction after adding TTBR1_OFFSET
ARM: LPAE: drop wrong carry flag correction after adding TTBR1_OFFSET
In commit 7fb00c2fca4b6c58be521eb3676cf4b4ba8dde3b ("ARM: 8114/1: LPAE:
load upper bits of early TTBR0/TTBR1") part which fixes carrying in adding
TTBR1_OFFSET to TTRR1 was wrong:
addls ttbr1, ttbr1, #TTBR1_OFFSET
adcls tmp, tmp, #0
addls doesn't update flags, adcls adds carry from cmp above:
cmp ttbr1, tmp @ PHYS_OFFSET > PAGE_OFFSET?
Condition 'ls' means carry flag is clear or zero flag is set, thus only one
case is affected: when PHYS_OFFSET == PAGE_OFFSET.
It seems safer to remove this fixup. Bug is here for ages and nobody
complained. Let's fix it separately.
Reported-and-Tested-by: Jassi Brar <jassisinghbrar@gmail.com>
Signed-off-by: Konstantin Khlebnikov <k.khlebnikov@samsung.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>