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Subject[irqchip: irq/irqchip-next] irqchip/gic-v3: Switch to bitmap_zalloc()
The following commit has been merged into the irq/irqchip-next branch of irqchip:

Commit-ID: ff5fe8867a5feaf90b1cb9b766f3de3a1caf9f33
Gitweb: https://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms/ff5fe8867a5feaf90b1cb9b766f3de3a1caf9f33
Author: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
AuthorDate: Fri, 18 Jun 2021 18:16:54 +03:00
Committer: Marc Zyngier <maz@kernel.org>
CommitterDate: Mon, 26 Jul 2021 18:04:01 +01:00

irqchip/gic-v3: Switch to bitmap_zalloc()

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.shevchenko@linux.intel.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210618151657.65305-4-andriy.shevchenko@linux.intel.com
---
drivers/irqchip/irq-gic-v3-its.c | 6 +++---
drivers/irqchip/irq-gic-v3-mbi.c | 5 ++---
2 files changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c
index ba39668..7f40dca 100644
--- a/drivers/irqchip/irq-gic-v3-its.c
+++ b/drivers/irqchip/irq-gic-v3-its.c
@@ -2140,7 +2140,7 @@ 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;

@@ -2156,7 +2156,7 @@ out:
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 void gic_reset_prop_table(void *va)
@@ -3387,7 +3387,7 @@ 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 e81e89a..b84c9c2 100644
--- a/drivers/irqchip/irq-gic-v3-mbi.c
+++ b/drivers/irqchip/irq-gic-v3-mbi.c
@@ -290,8 +290,7 @@ 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;
@@ -329,7 +328,7 @@ 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);
}

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