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Groups > linux.kernel > #1683479 > unrolled thread
| Started by | "Gustavo A. R. Silva" <garsilva@embeddedor.com> |
|---|---|
| First post | 2017-07-08 02:30 +0200 |
| Last post | 2017-07-08 03:50 +0200 |
| Articles | 3 — 2 participants |
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[PATCH] watchdog: stm32_iwdg: constify watchdog_ops structure "Gustavo A. R. Silva" <garsilva@embeddedor.com> - 2017-07-08 02:30 +0200
Re: [PATCH] watchdog: stm32_iwdg: constify watchdog_ops structure Guenter Roeck <linux@roeck-us.net> - 2017-07-08 03:50 +0200
Re: [PATCH] watchdog: stm32_iwdg: constify watchdog_ops structure Guenter Roeck <linux@roeck-us.net> - 2017-07-08 03:50 +0200
| From | "Gustavo A. R. Silva" <garsilva@embeddedor.com> |
|---|---|
| Date | 2017-07-08 02:30 +0200 |
| Subject | [PATCH] watchdog: stm32_iwdg: constify watchdog_ops structure |
| Message-ID | <u0LNg-3eS-13@gated-at.bofh.it> |
Check for watchdog_ops structures that are only stored in the ops field of
a watchdog_device structure. This field is declared const, so watchdog_ops
structures that have this property can be declared as const also.
This issue was detected using Coccinelle and the following semantic patch:
@r
disable optional_qualifier@
identifier i;
position p;
@@
static struct watchdog_ops i@p = { ... };
@ok@
identifier r.i;
struct watchdog_device e;
position p;
@@
e.ops = &i@p;
@bad@
position p != {r.p,ok.p};
identifier r.i;
struct watchdog_ops e;
@@
e@i@p
@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
struct watchdog_ops i = { ... };
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
---
drivers/watchdog/stm32_iwdg.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/watchdog/stm32_iwdg.c b/drivers/watchdog/stm32_iwdg.c
index 6c501b7..be64a86 100644
--- a/drivers/watchdog/stm32_iwdg.c
+++ b/drivers/watchdog/stm32_iwdg.c
@@ -140,7 +140,7 @@ static const struct watchdog_info stm32_iwdg_info = {
.identity = "STM32 Independent Watchdog",
};
-static struct watchdog_ops stm32_iwdg_ops = {
+static const struct watchdog_ops stm32_iwdg_ops = {
.owner = THIS_MODULE,
.start = stm32_iwdg_start,
.ping = stm32_iwdg_ping,
--
2.5.0
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| From | Guenter Roeck <linux@roeck-us.net> |
|---|---|
| Date | 2017-07-08 03:50 +0200 |
| Message-ID | <u0N2F-43B-1@gated-at.bofh.it> |
| In reply to | #1683479 |
On 07/07/2017 05:28 PM, Gustavo A. R. Silva wrote:
> Check for watchdog_ops structures that are only stored in the ops field of
> a watchdog_device structure. This field is declared const, so watchdog_ops
> structures that have this property can be declared as const also.
>
> This issue was detected using Coccinelle and the following semantic patch:
>
> @r
> disable optional_qualifier@
> identifier i;
> position p;
> @@
> static struct watchdog_ops i@p = { ... };
>
> @ok@
> identifier r.i;
> struct watchdog_device e;
> position p;
> @@
> e.ops = &i@p;
>
> @bad@
> position p != {r.p,ok.p};
> identifier r.i;
> struct watchdog_ops e;
> @@
> e@i@p
>
> @depends on !bad disable optional_qualifier@
> identifier r.i;
> @@
> static
> +const
> struct watchdog_ops i = { ... };
>
> Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
> ---
> drivers/watchdog/stm32_iwdg.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/watchdog/stm32_iwdg.c b/drivers/watchdog/stm32_iwdg.c
> index 6c501b7..be64a86 100644
> --- a/drivers/watchdog/stm32_iwdg.c
> +++ b/drivers/watchdog/stm32_iwdg.c
> @@ -140,7 +140,7 @@ static const struct watchdog_info stm32_iwdg_info = {
> .identity = "STM32 Independent Watchdog",
> };
>
> -static struct watchdog_ops stm32_iwdg_ops = {
> +static const struct watchdog_ops stm32_iwdg_ops = {
> .owner = THIS_MODULE,
> .start = stm32_iwdg_start,
> .ping = stm32_iwdg_ping,
>
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| From | Guenter Roeck <linux@roeck-us.net> |
|---|---|
| Date | 2017-07-08 03:50 +0200 |
| Message-ID | <u0N2G-43B-7@gated-at.bofh.it> |
| In reply to | #1683479 |
On 07/07/2017 05:28 PM, Gustavo A. R. Silva wrote:
> Check for watchdog_ops structures that are only stored in the ops field of
> a watchdog_device structure. This field is declared const, so watchdog_ops
> structures that have this property can be declared as const also.
>
> This issue was detected using Coccinelle and the following semantic patch:
>
> @r
> disable optional_qualifier@
> identifier i;
> position p;
> @@
> static struct watchdog_ops i@p = { ... };
>
> @ok@
> identifier r.i;
> struct watchdog_device e;
> position p;
> @@
> e.ops = &i@p;
>
> @bad@
> position p != {r.p,ok.p};
> identifier r.i;
> struct watchdog_ops e;
> @@
> e@i@p
>
> @depends on !bad disable optional_qualifier@
> identifier r.i;
> @@
> static
> +const
> struct watchdog_ops i = { ... };
>
> Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
> ---
> drivers/watchdog/stm32_iwdg.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/watchdog/stm32_iwdg.c b/drivers/watchdog/stm32_iwdg.c
> index 6c501b7..be64a86 100644
> --- a/drivers/watchdog/stm32_iwdg.c
> +++ b/drivers/watchdog/stm32_iwdg.c
> @@ -140,7 +140,7 @@ static const struct watchdog_info stm32_iwdg_info = {
> .identity = "STM32 Independent Watchdog",
> };
>
> -static struct watchdog_ops stm32_iwdg_ops = {
> +static const struct watchdog_ops stm32_iwdg_ops = {
> .owner = THIS_MODULE,
> .start = stm32_iwdg_start,
> .ping = stm32_iwdg_ping,
>
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