Rework LPI deallocation so that it can be reused by the v4 support
code.

Signed-off-by: Marc Zyngier <marc.zyng...@arm.com>
---
 drivers/irqchip/irq-gic-v3-its.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c
index dce8f8c..5d96b37 100644
--- a/drivers/irqchip/irq-gic-v3-its.c
+++ b/drivers/irqchip/irq-gic-v3-its.c
@@ -865,10 +865,8 @@ static unsigned long *its_lpi_alloc_chunks(int nr_irqs, 
int *base, int *nr_ids)
        return bitmap;
 }
 
-static void its_lpi_free(struct event_lpi_map *map)
+static void its_lpi_free_chunks(unsigned long *bitmap, int base, int nr_ids)
 {
-       int base = map->lpi_base;
-       int nr_ids = map->nr_lpis;
        int lpi;
 
        spin_lock(&lpi_lock);
@@ -885,8 +883,7 @@ static void its_lpi_free(struct event_lpi_map *map)
 
        spin_unlock(&lpi_lock);
 
-       kfree(map->lpi_map);
-       kfree(map->col_map);
+       kfree(bitmap);
 }
 
 static struct page *its_allocate_prop_table(gfp_t gfp_flags)
@@ -1654,7 +1651,10 @@ static void its_irq_domain_free(struct irq_domain 
*domain, unsigned int virq,
        /* If all interrupts have been freed, start mopping the floor */
        if (bitmap_empty(its_dev->event_map.lpi_map,
                         its_dev->event_map.nr_lpis)) {
-               its_lpi_free(&its_dev->event_map);
+               its_lpi_free_chunks(its_dev->event_map.lpi_map,
+                                   its_dev->event_map.lpi_base,
+                                   its_dev->event_map.nr_lpis);
+               kfree(its_dev->event_map.col_map);
 
                /* Unmap device/itt */
                its_send_mapd(its_dev, 0);
-- 
2.1.4

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