On Wed, Mar 11, 2026 at 11:23:34PM +0530, Rahul Joshi wrote:
The irq_lock mutex is missing a comment describing what it protects, which is required by kernel coding style. Add a comment clarifying that it serializes IRQ bus lock/unlock operations used to defer and sync pending IRQ type and mask changes to hardware.
Signed-off-by: Rahul Joshi rj5547884@gmail.com
drivers/staging/greybus/gpio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/staging/greybus/gpio.c b/drivers/staging/greybus/gpio.c index 12185f7a982c..89c15b804b2a 100644 --- a/drivers/staging/greybus/gpio.c +++ b/drivers/staging/greybus/gpio.c @@ -39,7 +39,7 @@ struct gb_gpio_controller { struct gpio_chip chip; struct irq_chip irqc;
- struct mutex irq_lock;
- struct mutex irq_lock; /* protects irq bus operations */
What is a "irq bus"? This comment feels odd to me :(
thanks,
greg k-h