Drop static on a local variable, when the variable is initialized before any possible use. Thus, the static has no benefit.
The semantic patch that fixes this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @bad exists@ position p; identifier x; type T; @@ static T x@p; ... x = <+...x...+> @@ identifier x; expression e; type T; position p != bad.p; @@ -static T x@p; ... when != x when strict ?x = e; // </smpl> Signed-off-by: Julia Lawall <julia.law...@lip6.fr> --- These patches are all independent of each other. drivers/mfd/twl4030-irq.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff -u -p a/drivers/mfd/twl4030-irq.c b/drivers/mfd/twl4030-irq.c --- a/drivers/mfd/twl4030-irq.c +++ b/drivers/mfd/twl4030-irq.c @@ -685,7 +685,7 @@ int twl4030_sih_setup(struct device *dev int twl4030_init_irq(struct device *dev, int irq_num) { - static struct irq_chip twl4030_irq_chip; + struct irq_chip twl4030_irq_chip; int status, i; int irq_base, irq_end, nr_irqs; struct device_node *node = dev->of_node;
