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| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2015-09-07 00:29:15 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2015-09-09 23:26:11 +0100 |
| commit | 39dc53deff30d9b239ac36cfeb0ef2022d03a449 (patch) | |
| tree | c4292d8344604d718a28c034ec6e62febe1d0907 /arch/arm/nwfpe | |
| parent | a5e090acbf545c0a3b04080f8a488b17ec41fe02 (diff) | |
ARM: swpan: fix nwfpe for uaccess changes
NWFPE needs to access userspace to check whether the next instruction
is another FP instruction. Allow userspace access for this read.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/nwfpe')
| -rw-r--r-- | arch/arm/nwfpe/entry.S | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/arm/nwfpe/entry.S b/arch/arm/nwfpe/entry.S index 71df43547659..39c20afad7ed 100644 --- a/arch/arm/nwfpe/entry.S +++ b/arch/arm/nwfpe/entry.S @@ -95,9 +95,10 @@ emulate: reteq r4 @ no, return failure next: + uaccess_enable r3 .Lx1: ldrt r6, [r5], #4 @ get the next instruction and @ increment PC - + uaccess_disable r3 and r2, r6, #0x0F000000 @ test for FP insns teq r2, #0x0C000000 teqne r2, #0x0D000000 |