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Groups > linux.kernel > #1704708
| From | Julia Lawall <Julia.Lawall@lip6.fr> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 1/4] thermal: qoriq: constify thermal_zone_of_device_ops structures |
| Date | 2017-08-05 23:10 +0200 |
| Message-ID | <ubeuB-1Gd-1@gated-at.bofh.it> (permalink) |
| References | <ubeuB-1Gd-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
The thermal_zone_of_device_ops structure is only passed as the fourth
argument to thermal_zone_of_sensor_register, which is declared as const.
Thus the thermal_zone_of_device_ops structure itself can be const.
Done with the help of Coccinelle.
// <smpl>
@r disable optional_qualifier@
identifier i;
position p;
@@
static struct thermal_zone_of_device_ops i@p = { ... };
@ok1@
identifier r.i;
expression e1,e2,e3;
position p;
@@
thermal_zone_of_sensor_register(e1,e2,e3,&i@p)
@bad@
position p != {r.p,ok1.p};
identifier r.i;
struct thermal_zone_of_device_ops e;
@@
e@i@p
@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
struct thermal_zone_of_device_ops i = { ... };
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
---
drivers/thermal/qoriq_thermal.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/thermal/qoriq_thermal.c b/drivers/thermal/qoriq_thermal.c
index 4362a69..c866cc1 100644
--- a/drivers/thermal/qoriq_thermal.c
+++ b/drivers/thermal/qoriq_thermal.c
@@ -188,7 +188,7 @@ static void qoriq_tmu_init_device(struct qoriq_tmu_data *data)
tmu_write(data, TMR_DISABLE, &data->regs->tmr);
}
-static struct thermal_zone_of_device_ops tmu_tz_ops = {
+static const struct thermal_zone_of_device_ops tmu_tz_ops = {
.get_temp = tmu_get_temp,
};
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[PATCH 1/4] thermal: qoriq: constify thermal_zone_of_device_ops structures Julia Lawall <Julia.Lawall@lip6.fr> - 2017-08-05 23:10 +0200
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