diff options
| author | Bhumika Goyal <bhumirks@gmail.com> | 2017-01-10 23:42:06 +0530 |
|---|---|---|
| committer | Thierry Reding <thierry.reding@gmail.com> | 2017-01-19 00:38:17 +0100 |
| commit | b2ec9efc1f4fb1dc13a599db88019d5472deef9b (patch) | |
| tree | 636448e483d5ff790b80de372d0bc5dc112c068d /drivers/pwm | |
| parent | 5bf22ff32e736beb8ba91a99a3e116d12e7eabd0 (diff) | |
| download | linux-b2ec9efc1f4fb1dc13a599db88019d5472deef9b.tar.bz2 | |
pwm: constify pwm_ops structures
Declare pwm_ops structures as const as they are only stored in the ops
field of a pwm_chip structure. This field is of type const struct pwm_ops
*, so pwm_ops structures having this property can be declared as const.
Done using Coccinelle:
@r1 disable optional_qualifier@
identifier i;
position p;
@@
static struct pwm_ops i@p={...};
@ok1@
identifier r1.i;
position p;
struct pxa_pwm_chip pwm;
struct bfin_pwm_chip bwm;
struct vt8500_chip vp;
struct imx_chip icp;
@@
(
pwm.chip.ops=&i@p
|
bwm.chip.ops=&i@p
|
vp.chip.ops=&i@p
|
icp.chip.ops=&i@p
)
@bad@
position p!={r1.p,ok1.p};
identifier r1.i;
@@
i@p
@depends on !bad disable optional_qualifier@
identifier r1.i;
@@
+const
struct pwm_ops i;
File size details:
text data bss dec hex filename
1646 328 0 1974 7b6 drivers/pwm/pwm-imx.o
1742 224 0 1966 7ae drivers/pwm/pwm-imx.o
1941 296 0 2237 8bd drivers/pwm/pwm-pxa.o
2037 192 0 2229 8b5 drivers/pwm/pwm-pxa.o
1946 296 0 2242 8c2 drivers/pwm/pwm-vt8500.o
2050 192 0 2242 8c2 drivers/pwm/pwm-vt8500.o
The drivers/pwm/pwm-bfin.o file did not compile.
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Diffstat (limited to 'drivers/pwm')
| -rw-r--r-- | drivers/pwm/pwm-bfin.c | 2 | ||||
| -rw-r--r-- | drivers/pwm/pwm-imx.c | 2 | ||||
| -rw-r--r-- | drivers/pwm/pwm-pxa.c | 2 | ||||
| -rw-r--r-- | drivers/pwm/pwm-vt8500.c | 2 |
4 files changed, 4 insertions, 4 deletions
diff --git a/drivers/pwm/pwm-bfin.c b/drivers/pwm/pwm-bfin.c index 7631ef194de7..d2ed0a2a18e8 100644 --- a/drivers/pwm/pwm-bfin.c +++ b/drivers/pwm/pwm-bfin.c @@ -103,7 +103,7 @@ static void bfin_pwm_disable(struct pwm_chip *chip, struct pwm_device *pwm) disable_gptimer(priv->pin); } -static struct pwm_ops bfin_pwm_ops = { +static const struct pwm_ops bfin_pwm_ops = { .request = bfin_pwm_request, .free = bfin_pwm_free, .config = bfin_pwm_config, diff --git a/drivers/pwm/pwm-imx.c b/drivers/pwm/pwm-imx.c index d600fd5cd4ba..177fb81c916d 100644 --- a/drivers/pwm/pwm-imx.c +++ b/drivers/pwm/pwm-imx.c @@ -240,7 +240,7 @@ static void imx_pwm_disable(struct pwm_chip *chip, struct pwm_device *pwm) clk_disable_unprepare(imx->clk_per); } -static struct pwm_ops imx_pwm_ops = { +static const struct pwm_ops imx_pwm_ops = { .enable = imx_pwm_enable, .disable = imx_pwm_disable, .config = imx_pwm_config, diff --git a/drivers/pwm/pwm-pxa.c b/drivers/pwm/pwm-pxa.c index 58b709f29130..4143a46684d2 100644 --- a/drivers/pwm/pwm-pxa.c +++ b/drivers/pwm/pwm-pxa.c @@ -118,7 +118,7 @@ static void pxa_pwm_disable(struct pwm_chip *chip, struct pwm_device *pwm) clk_disable_unprepare(pc->clk); } -static struct pwm_ops pxa_pwm_ops = { +static const struct pwm_ops pxa_pwm_ops = { .config = pxa_pwm_config, .enable = pxa_pwm_enable, .disable = pxa_pwm_disable, diff --git a/drivers/pwm/pwm-vt8500.c b/drivers/pwm/pwm-vt8500.c index cdb58fd4619d..8141a4984126 100644 --- a/drivers/pwm/pwm-vt8500.c +++ b/drivers/pwm/pwm-vt8500.c @@ -184,7 +184,7 @@ static int vt8500_pwm_set_polarity(struct pwm_chip *chip, return 0; } -static struct pwm_ops vt8500_pwm_ops = { +static const struct pwm_ops vt8500_pwm_ops = { .enable = vt8500_pwm_enable, .disable = vt8500_pwm_disable, .config = vt8500_pwm_config, |