Hi all,

Today's linux-next merge of the gpio-brgl tree got a conflict in:

  drivers/gpio/gpio-virtio.c

between commit:

  4dd10fbbeb9c3 ("treewide: Convert devm_kmalloc() family to the devm_kmalloc_obj() family")

from the origin tree and commit:

  d5d4132419a41 ("gpio: virtio: convert to immutable irq_chip")

from the gpio-brgl tree.

I fixed it up (see below) and can carry the fix as necessary. This
is now fixed as far as linux-next is concerned, but any non trivial
conflicts should be mentioned to your upstream maintainer when your tree
is submitted for merging.  You may also want to consider cooperating
with the maintainer of the conflicting tree to minimise any particularly
complex conflicts.

diff --combined drivers/gpio/gpio-virtio.c
index d0ae3d57c6403,e2add87d76a8a..0000000000000
--- a/drivers/gpio/gpio-virtio.c
+++ b/drivers/gpio/gpio-virtio.c
@@@ -17,6 -17,7 +17,7 @@@
  #include <linux/kernel.h>
  #include <linux/module.h>
  #include <linux/mutex.h>
+ #include <linux/seq_file.h>
  #include <linux/spinlock.h>
  #include <linux/virtio_config.h>
  #include <uapi/linux/virtio_gpio.h>
@@@ -243,6 -244,8 +244,8 @@@ static void virtio_gpio_irq_enable(stru
  	struct virtio_gpio *vgpio = gpiochip_get_data(gc);
  	struct vgpio_irq_line *irq_line = &vgpio->irq_lines[d->hwirq];
  
+ 	gpiochip_enable_irq(gc, d->hwirq);
+ 
  	raw_spin_lock(&vgpio->eventq_lock);
  	irq_line->disabled = false;
  	irq_line->masked = false;
@@@ -265,6 -268,8 +268,8 @@@ static void virtio_gpio_irq_disable(str
  	raw_spin_unlock(&vgpio->eventq_lock);
  
  	irq_line->update_pending = true;
+ 
+ 	gpiochip_disable_irq(gc, d->hwirq);
  }
  
  static void virtio_gpio_irq_mask(struct irq_data *d)
@@@ -512,7 -517,7 +517,7 @@@ static const char **virtio_gpio_get_nam
  		return NULL;
  	}
  
 -	names = devm_kcalloc(dev, ngpio, sizeof(*names), GFP_KERNEL);
 +	names = devm_kzalloc_objs(dev, *names, ngpio);
  	if (!names)
  		return NULL;
  
@@@ -532,16 -537,35 +537,35 @@@
  	return names;
  }
  
+ static void virtio_gpio_irq_print_chip(struct irq_data *d, struct seq_file *p)
+ {
+ 	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
+ 
+ 	seq_puts(p, dev_name(gc->parent));
+ }
+ 
+ static const struct irq_chip virtio_gpio_irqchip = {
+ 	.irq_enable = virtio_gpio_irq_enable,
+ 	.irq_disable = virtio_gpio_irq_disable,
+ 	.irq_mask = virtio_gpio_irq_mask,
+ 	.irq_unmask = virtio_gpio_irq_unmask,
+ 	.irq_set_type = virtio_gpio_irq_set_type,
+ 	.irq_bus_lock = virtio_gpio_irq_bus_lock,
+ 	.irq_bus_sync_unlock = virtio_gpio_irq_bus_sync_unlock,
+ 	.irq_print_chip = virtio_gpio_irq_print_chip,
+ 	.flags = IRQCHIP_IMMUTABLE,
+ 	GPIOCHIP_IRQ_RESOURCE_HELPERS,
+ };
+ 
  static int virtio_gpio_probe(struct virtio_device *vdev)
  {
  	struct device *dev = &vdev->dev;
  	struct virtio_gpio *vgpio;
- 	struct irq_chip *gpio_irq_chip;
  	u32 gpio_names_size;
  	u16 ngpio;
  	int ret, i;
  
 -	vgpio = devm_kzalloc(dev, sizeof(*vgpio), GFP_KERNEL);
 +	vgpio = devm_kzalloc_obj(dev, *vgpio);
  	if (!vgpio)
  		return -ENOMEM;
  
@@@ -556,7 -580,7 +580,7 @@@
  		return -EINVAL;
  	}
  
 -	vgpio->lines = devm_kcalloc(dev, ngpio, sizeof(*vgpio->lines), GFP_KERNEL);
 +	vgpio->lines = devm_kzalloc_objs(dev, *vgpio->lines, ngpio);
  	if (!vgpio->lines)
  		return -ENOMEM;
  
@@@ -584,31 -608,17 +608,18 @@@
  
  	/* Interrupt support */
  	if (virtio_has_feature(vdev, VIRTIO_GPIO_F_IRQ)) {
 -		vgpio->irq_lines = devm_kcalloc(dev, ngpio, sizeof(*vgpio->irq_lines), GFP_KERNEL);
 +		vgpio->irq_lines = devm_kzalloc_objs(dev, *vgpio->irq_lines,
 +						     ngpio);
  		if (!vgpio->irq_lines)
  			return -ENOMEM;
  
- 		gpio_irq_chip = devm_kzalloc_obj(dev, *gpio_irq_chip);
- 		if (!gpio_irq_chip)
- 			return -ENOMEM;
- 
- 		gpio_irq_chip->name = dev_name(dev);
- 		gpio_irq_chip->irq_enable = virtio_gpio_irq_enable;
- 		gpio_irq_chip->irq_disable = virtio_gpio_irq_disable;
- 		gpio_irq_chip->irq_mask = virtio_gpio_irq_mask;
- 		gpio_irq_chip->irq_unmask = virtio_gpio_irq_unmask;
- 		gpio_irq_chip->irq_set_type = virtio_gpio_irq_set_type;
- 		gpio_irq_chip->irq_bus_lock = virtio_gpio_irq_bus_lock;
- 		gpio_irq_chip->irq_bus_sync_unlock = virtio_gpio_irq_bus_sync_unlock;
- 
  		/* The event comes from the outside so no parent handler */
  		vgpio->gc.irq.parent_handler	= NULL;
  		vgpio->gc.irq.num_parents	= 0;
  		vgpio->gc.irq.parents		= NULL;
  		vgpio->gc.irq.default_type	= IRQ_TYPE_NONE;
  		vgpio->gc.irq.handler		= handle_level_irq;
- 		vgpio->gc.irq.chip		= gpio_irq_chip;
+ 		gpio_irq_chip_set_chip(&vgpio->gc.irq, &virtio_gpio_irqchip);
  
  		for (i = 0; i < ngpio; i++) {
  			vgpio->irq_lines[i].type = VIRTIO_GPIO_IRQ_TYPE_NONE;
@@@ -647,8 -657,8 +658,8 @@@ static void virtio_gpio_remove(struct v
  }
  
  static const struct virtio_device_id id_table[] = {
- 	{ VIRTIO_ID_GPIO, VIRTIO_DEV_ANY_ID },
- 	{},
+ 	{ .device = VIRTIO_ID_GPIO, .vendor = VIRTIO_DEV_ANY_ID },
+ 	{ }
  };
  MODULE_DEVICE_TABLE(virtio, id_table);