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watchdog: tegra: constify watchdog_ops structures

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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.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@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 = { ... };
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Acked-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
This commit is contained in:
Julia Lawall 2016-09-01 19:35:25 +02:00 committed by Wim Van Sebroeck
parent 6e938f6e86
commit 7123f253f0
1 changed files with 1 additions and 1 deletions
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2
drivers/watchdog/tegra_wdt.c
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@ -178,7 +178,7 @@ static const struct watchdog_info tegra_wdt_info = {
.identity = "Tegra Watchdog",
};
static struct watchdog_ops tegra_wdt_ops = {
static const struct watchdog_ops tegra_wdt_ops = {
.owner = THIS_MODULE,
.start = tegra_wdt_start,
.stop = tegra_wdt_stop,