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powerpc/powermac: constify device_node in of_irq_parse_oldworld() 

The of_irq_parse_oldworld() does not modify passed device_node so make
it a pointer to const for safety.  Drop the extern while modifying the
line.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210924105653.46963-2-krzysztof.kozlowski@canonical.com
This commit is contained in:
Krzysztof Kozlowski 2021-09-24 12:56:53 +02:00 committed by Michael Ellerman
parent cc025916b1
commit bb12dd42d2
2 changed files with 4 additions and 4 deletions
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2
arch/powerpc/platforms/powermac/pic.c
View File

@ -384,7 +384,7 @@ static void __init pmac_pic_probe_oldstyle(void)
#endif
}
int of_irq_parse_oldworld(struct device_node *device, int index,
int of_irq_parse_oldworld(const struct device_node *device, int index,
struct of_phandle_args *out_irq)
{
const u32 *ints = NULL;

6
include/linux/of_irq.h
View File

@ -20,12 +20,12 @@ typedef int (*of_irq_init_cb_t)(struct device_node *, struct device_node *);
#if defined(CONFIG_PPC32) && defined(CONFIG_PPC_PMAC)
extern unsigned int of_irq_workarounds;
extern struct device_node *of_irq_dflt_pic;
extern int of_irq_parse_oldworld(struct device_node *device, int index,
struct of_phandle_args *out_irq);
int of_irq_parse_oldworld(const struct device_node *device, int index,
struct of_phandle_args *out_irq);
#else /* CONFIG_PPC32 && CONFIG_PPC_PMAC */
#define of_irq_workarounds (0)
#define of_irq_dflt_pic (NULL)
static inline int of_irq_parse_oldworld(struct device_node *device, int index,
static inline int of_irq_parse_oldworld(const struct device_node *device, int index,
struct of_phandle_args *out_irq)
{
return -EINVAL;