RE: [PATCH net-next v8 6/9] net: txgbe: Support GPIO to SFP socket

Jiawen Wu
2023-05-16T02:06:55Z

On Tuesday, May 16, 2023 5:36 AM, Andy Shevchenko wrote:
> On Mon, May 15, 2023 at 02:31:57PM +0800, Jiawen Wu wrote:
> > Register GPIO chip and handle GPIO IRQ for SFP socket.
>
> ...
>
> > + spin_lock_init(&wx->gpio_lock);
>
> Almost forgot to ask, are you planning to use this GPIO part on PREEMPT_RT
> kernels? Currently you will get a splat in case IRQ is fired.

Hmmm, I don't know much about this. Should I use raw_spinlock_t instead of
spinlock_t?