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Groups > linux.kernel > #1687991
| From | Julia Lawall <Julia.Lawall@lip6.fr> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 10/11] irqchip: digicolor: Drop unnecessary static |
| Date | 2017-07-15 22:40 +0200 |
| Message-ID | <u3C13-64w-7@gated-at.bofh.it> (permalink) |
| References | <u3C13-64w-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
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.Lawall@lip6.fr>
---
These patches are all independent of each other.
drivers/irqchip/irq-digicolor.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -u -p a/drivers/irqchip/irq-digicolor.c b/drivers/irqchip/irq-digicolor.c
--- a/drivers/irqchip/irq-digicolor.c
+++ b/drivers/irqchip/irq-digicolor.c
@@ -71,7 +71,7 @@ static void __init digicolor_set_gc(void
static int __init digicolor_of_init(struct device_node *node,
struct device_node *parent)
{
- static void __iomem *reg_base;
+ void __iomem *reg_base;
unsigned int clr = IRQ_NOREQUEST | IRQ_NOPROBE | IRQ_NOAUTOEN;
struct regmap *ucregs;
int ret;
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[PATCH 10/11] irqchip: digicolor: Drop unnecessary static Julia Lawall <Julia.Lawall@lip6.fr> - 2017-07-15 22:40 +0200 Re: [PATCH 10/11] irqchip: digicolor: Drop unnecessary static Baruch Siach <baruch@tkos.co.il> - 2017-07-16 06:50 +0200
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