Re: [PATCH 2/5] MIPS: Allow kernel to use coprocessor 2

[Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>]

On 10.06.2013 11:30, Jayachandran C wrote:

> Kernel threads should be able to use COP2 if the platform needs it.
> Do not call die_if_kernel() for a coprocessor unusable exception if
> the exception due to COP2 usage.  Instead, the default notifier for
> COP2 exceptions is updated to call die_if_kernel.

> Signed-off-by: Jayachandran C <jchandra@broadcom.com>
> ---
>   arch/mips/kernel/traps.c |   15 +++++----------
>   1 file changed, 5 insertions(+), 10 deletions(-)

> diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
> index beba1e6..142d2be 100644
> --- a/arch/mips/kernel/traps.c
> +++ b/arch/mips/kernel/traps.c
> @@ -1056,15 +1056,9 @@ static int default_cu2_call(struct notifier_block *nfb, unsigned long action,
>   {
>   	struct pt_regs *regs = data;
>
> -	switch (action) {
> -	default:
> -		die_if_kernel("Unhandled kernel unaligned access or invalid "
> +	die_if_kernel("COP2: Unhandled kernel unaligned access or invalid "
>   			      "instruction", regs);

    Do not wrap the message please -- it's useful for grepping. 
checkpatch.pl shouldn't complain about the line length.

WBR, Sergei