Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > linux.kernel > #1689811
| From | Lee Jones <lee.jones@linaro.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH 11/11] mfd: max8925-i2c: Drop unnecessary static |
| Date | 2017-07-18 09:30 +0200 |
| Message-ID | <u4v7c-7Sa-15@gated-at.bofh.it> (permalink) |
| References | <u3C13-64w-3@gated-at.bofh.it> <u3C14-64w-21@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Sat, 15 Jul 2017, 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>
>
> ---
> These patches are all independent of each other.
>
> drivers/mfd/max8925-i2c.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
Applied, thanks.
> diff -u -p a/drivers/mfd/max8925-i2c.c b/drivers/mfd/max8925-i2c.c
> --- a/drivers/mfd/max8925-i2c.c
> +++ b/drivers/mfd/max8925-i2c.c
> @@ -151,7 +151,7 @@ static int max8925_probe(struct i2c_clie
> const struct i2c_device_id *id)
> {
> struct max8925_platform_data *pdata = dev_get_platdata(&client->dev);
> - static struct max8925_chip *chip;
> + struct max8925_chip *chip;
> struct device_node *node = client->dev.of_node;
>
> if (node && !pdata) {
>
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
Back to linux.kernel | Previous | Next — Previous in thread | Find similar | Unroll thread
[PATCH 11/11] mfd: max8925-i2c: Drop unnecessary static Julia Lawall <Julia.Lawall@lip6.fr> - 2017-07-15 22:40 +0200 Re: [PATCH 11/11] mfd: max8925-i2c: Drop unnecessary static Lee Jones <lee.jones@linaro.org> - 2017-07-18 09:30 +0200
csiph-web