| Message ID | 1500149266-32357-9-git-send-email-Julia.Lawall@lip6.fr |
|---|---|
| State | Not Applicable |
| Delegated to: | David Miller |
| Headers | show |
On Sat, Jul 15, 2017 at 10:07 PM, Julia Lawall <Julia.Lawall@lip6.fr> wrote: > 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> Acked-by: Linus Walleij <linus.walleij@linaro.org> Yours, Linus Walleij -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Sat, Jul 15, 2017 at 10:07:43PM +0200, Julia Lawall wrote: > 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> Applied to libata/for-4.14. Thanks.
diff -u -p a/drivers/ata/sata_gemini.c b/drivers/ata/sata_gemini.c --- a/drivers/ata/sata_gemini.c +++ b/drivers/ata/sata_gemini.c @@ -305,7 +305,7 @@ static int gemini_sata_probe(struct plat struct device *dev = &pdev->dev; struct device_node *np = dev->of_node; struct sata_gemini *sg; - static struct regmap *map; + struct regmap *map; struct resource *res; enum gemini_muxmode muxmode; u32 gmode;
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/ata/sata_gemini.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html