[PATCH v1 1/2] irqchip/gic-v3: Switch to bitmap_zalloc()

[Andy Shevchenko]

Switch to bitmap_zalloc() to show clearly what we are allocating.
Besides that it returns pointer of bitmap type instead of opaque void *.

Signed-off-by: Andy Shevchenko <andriy.shevche...@linux.intel.com>
---
 drivers/irqchip/irq-gic-v3-its.c | 9 ++++-----
 drivers/irqchip/irq-gic-v3-mbi.c | 5 ++---
 2 files changed, 6 insertions(+), 8 deletions(-)

diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c
index 316a57530f6d..497589ebd950 100644
--- a/drivers/irqchip/irq-gic-v3-its.c
+++ b/drivers/irqchip/irq-gic-v3-its.c
@@ -1577,7 +1577,7 @@ static unsigned long *its_lpi_alloc(int nr_irqs, u32 
*base, int *nr_ids)
        if (err)
                goto out;
 
-       bitmap = kcalloc(BITS_TO_LONGS(nr_irqs), sizeof (long), GFP_ATOMIC);
+       bitmap = bitmap_zalloc(nr_irqs, GFP_ATOMIC);
        if (!bitmap)
                goto out;
 
@@ -1593,7 +1593,7 @@ static unsigned long *its_lpi_alloc(int nr_irqs, u32 
*base, int *nr_ids)
 static void its_lpi_free(unsigned long *bitmap, u32 base, u32 nr_ids)
 {
        WARN_ON(free_lpi_range(base, nr_ids));
-       kfree(bitmap);
+       bitmap_free(bitmap);
 }
 
 static struct page *its_allocate_prop_table(gfp_t gfp_flags)
@@ -2215,8 +2215,7 @@ static struct its_device *its_create_device(struct 
its_node *its, u32 dev_id,
        if (alloc_lpis) {
                lpi_map = its_lpi_alloc(nvecs, &lpi_base, &nr_lpis);
                if (lpi_map)
-                       col_map = kcalloc(nr_lpis, sizeof(*col_map),
-                                         GFP_KERNEL);
+                       col_map = kcalloc(nr_lpis, sizeof(*col_map), 
GFP_KERNEL);
        } else {
                col_map = kcalloc(nr_ites, sizeof(*col_map), GFP_KERNEL);
                nr_lpis = 0;
@@ -2226,7 +2225,7 @@ static struct its_device *its_create_device(struct 
its_node *its, u32 dev_id,
        if (!dev || !itt ||  !col_map || (!lpi_map && alloc_lpis)) {
                kfree(dev);
                kfree(itt);
-               kfree(lpi_map);
+               bitmap_free(lpi_map);
                kfree(col_map);
                return NULL;
        }
diff --git a/drivers/irqchip/irq-gic-v3-mbi.c b/drivers/irqchip/irq-gic-v3-mbi.c
index ad70e7c416e3..7d783fc56169 100644
--- a/drivers/irqchip/irq-gic-v3-mbi.c
+++ b/drivers/irqchip/irq-gic-v3-mbi.c
@@ -284,8 +284,7 @@ int __init mbi_init(struct fwnode_handle *fwnode, struct 
irq_domain *parent)
                if (ret)
                        goto err_free_mbi;
 
-               mbi_ranges[n].bm = kcalloc(BITS_TO_LONGS(mbi_ranges[n].nr_spis),
-                                          sizeof(long), GFP_KERNEL);
+               mbi_ranges[n].bm = bitmap_zalloc(mbi_ranges[n].nr_spis, 
GFP_KERNEL);
                if (!mbi_ranges[n].bm) {
                        ret = -ENOMEM;
                        goto err_free_mbi;
@@ -323,7 +322,7 @@ int __init mbi_init(struct fwnode_handle *fwnode, struct 
irq_domain *parent)
 err_free_mbi:
        if (mbi_ranges) {
                for (n = 0; n < mbi_range_nr; n++)
-                       kfree(mbi_ranges[n].bm);
+                       bitmap_free(mbi_ranges[n].bm);
                kfree(mbi_ranges);
        }
 
-- 
2.18.0