On 01/25/2016 06:14 PM, Grygorii Strashko wrote:
>> diff --git a/arch/arm/kernel/entry-common.S
>> b/arch/arm/kernel/entry-common.S
>> index 30a7228eaceb..c3bd6cbfce4b 100644
>> --- a/arch/arm/kernel/entry-common.S
>> +++ b/arch/arm/kernel/entry-common.S
>> @@ -36,7 +36,9 @@
>> UNWIND(.cantunwind )
>> disable_irq_notrace @ disable interrupts
>> ldr r1, [tsk, #TI_FLAGS] @ re-check for syscall tracing
>> - tst r1, #_TIF_SYSCALL_WORK | _TIF_WORK_MASK
>> + tst r1, #((_TIF_SYSCALL_WORK | _TIF_WORK_MASK) & ~_TIF_SECCOMP)
>> + bne fast_work_pending
> ^^^^^^^^^^^^^^^^
>
>> + tst r1, #_TIF_SECCOMP
>> bne fast_work_pending
> ^^^^^^^^^^^^^^^^^
>
> Should it be "fast_work_pending" in both cases?
Yes, I think so and it is, isn't it?
The original is
tst r1, #_TIF_SYSCALL_WORK | _TIF_WORK_MASK
bne fast_work_pending
and with the LAZY bits in it, the ASM opcode no longer works because
the constant is too large (or has to many bits set). So I removed the
_TIF_SECCOMP bit out of the mask and made two compare & jumps here.
Sebastian
