[PATCH v2 08/12] irqchip/armada-370-xp: Dynamically allocate the driver private structure
Marek Behún
kabel at kernel.org
Wed Aug 7 09:41:00 PDT 2024
Dynamically allocate the driver private structure. This concludes the
conversion of this driver to modern style.
Signed-off-by: Marek Behún <kabel at kernel.org>
---
drivers/irqchip/irq-armada-370-xp.c | 16 +++++++++++-----
1 file changed, 11 insertions(+), 5 deletions(-)
diff --git a/drivers/irqchip/irq-armada-370-xp.c b/drivers/irqchip/irq-armada-370-xp.c
index 5710ce206cca..f8658a232f21 100644
--- a/drivers/irqchip/irq-armada-370-xp.c
+++ b/drivers/irqchip/irq-armada-370-xp.c
@@ -187,7 +187,7 @@ struct mpic {
u32 doorbell_mask;
};
-static struct mpic mpic_data;
+static struct mpic *mpic_data __ro_after_init;
static inline bool mpic_is_ipi_available(struct mpic *mpic)
{
@@ -575,7 +575,7 @@ static int mpic_starting_cpu(unsigned int cpu)
static int mpic_cascaded_starting_cpu(unsigned int cpu)
{
- struct mpic *mpic = &mpic_data;
+ struct mpic *mpic = mpic_data;
mpic_perf_init(mpic);
mpic_reenable_percpu(mpic);
@@ -726,7 +726,7 @@ static void __exception_irq_entry mpic_handle_irq(struct pt_regs *regs)
static int mpic_suspend(void)
{
- struct mpic *mpic = &mpic_data;
+ struct mpic *mpic = mpic_data;
mpic->doorbell_mask = readl(mpic->per_cpu + MPIC_IN_DRBEL_MASK);
@@ -735,7 +735,7 @@ static int mpic_suspend(void)
static void mpic_resume(void)
{
- struct mpic *mpic = &mpic_data;
+ struct mpic *mpic = mpic_data;
bool src0, src1;
/* Re-enable interrupts */
@@ -824,11 +824,17 @@ static int __init mpic_map_region(struct device_node *np, int index,
static int __init mpic_of_init(struct device_node *node, struct device_node *parent)
{
- struct mpic *mpic = &mpic_data;
phys_addr_t phys_base;
unsigned int nr_irqs;
+ struct mpic *mpic;
int err;
+ mpic = kzalloc(sizeof(*mpic), GFP_KERNEL);
+ if (WARN_ON(!mpic))
+ return -ENOMEM;
+
+ mpic_data = mpic;
+
err = mpic_map_region(node, 0, &mpic->base, &phys_base);
if (err)
return err;
--
2.44.2
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