As of commit be45beb2df69 ("genirq: Add runtime power management
support for IRQ chips") the irq_chip struct got a struct *device
parent_device field added to it. However, it was added at the
beginning of the struct, which previously was the "name" entry.
The driver here was using a mix of ordered struct init entries and
named init entries. It was supplying the name assuming it was the 1st
in the order, and hence when that became a struct *device we get:
arch/mips/lantiq/irq.c:209:2: warning: initialization from incompatible pointer type [enabled by default]
arch/mips/lantiq/irq.c:209:2: warning: (near initialization for 'ltq_irq_type.parent_device') [enabled by default]
arch/mips/lantiq/irq.c:219:2: warning: initialization from incompatible pointer type [enabled by default]
arch/mips/lantiq/irq.c:219:2: warning: (near initialization for 'ltq_eiu_type.parent_device') [enabled by default]
While not runtime tested, I can't imagine trying to dereference a
a struct device field from a char string will end well.
Here we've used named element init entries for the name string as well
to fix it.
Fixes: be45beb2df69 ("genirq: Add runtime power management support for IRQ chips")
Cc: Jon Hunter <jonathanh@xxxxxxxxxx>
Cc: Kevin Hilman <khilman@xxxxxxxxxxxx>
Cc: Marc Zyngier <marc.zyngier@xxxxxxx>
Cc: John Crispin <john@xxxxxxxxxxx>
Cc: Ralf Baechle <ralf@xxxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: linux-mips@xxxxxxxxxxxxxx
Signed-off-by: Paul Gortmaker <paul.gortmaker@xxxxxxxxxxxxx>
---
[
in mainline via: commit a5c8a01968fc9dc94f182172cee7ab40bc496ea4
Merge: ff5b706f5189 3faf24ea894a
Author: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Date: Mon Jun 13 16:33:48 2016 +0200
Merge tag 'irqchip-for-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/core
]
arch/mips/lantiq/irq.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/mips/lantiq/irq.c b/arch/mips/lantiq/irq.c
index ff17669e30a3..02c0252b49a3 100644
--- a/arch/mips/lantiq/irq.c
+++ b/arch/mips/lantiq/irq.c
@@ -206,7 +206,7 @@ static void ltq_shutdown_eiu_irq(struct irq_data *d)
}
static struct irq_chip ltq_irq_type = {
- "icu",
+ .name = "icu",
.irq_enable = ltq_enable_irq,
.irq_disable = ltq_disable_irq,
.irq_unmask = ltq_enable_irq,
@@ -216,7 +216,7 @@ static struct irq_chip ltq_irq_type = {
};
static struct irq_chip ltq_eiu_type = {
- "eiu",
+ .name = "eiu",
.irq_startup = ltq_startup_eiu_irq,
.irq_shutdown = ltq_shutdown_eiu_irq,
.irq_enable = ltq_enable_irq,
--
2.8.4
