diff mbox

[01/33] usb: phy: use match_string() helper

Message ID 1526903890-35761-2-git-send-email-xieyisheng1@huawei.com (mailing list archive)
State New, archived
Headers show

Commit Message

Xie Yisheng May 21, 2018, 11:57 a.m. UTC
match_string() returns the index of an array for a matching string,
which can be used intead of open coded variant.

Cc: linux-usb@vger.kernel.org
Cc: Felipe Balbi <balbi@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Yisheng Xie <xieyisheng1@huawei.com>
---
 drivers/usb/phy/of.c | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

Comments

Andy Shevchenko May 21, 2018, 10:20 p.m. UTC | #1
On Mon, May 21, 2018 at 2:57 PM, Yisheng Xie <xieyisheng1@huawei.com> wrote:
> match_string() returns the index of an array for a matching string,
> which can be used intead of open coded variant.

> -       int err, i;
> +       int ret;

int err;

would still work.
Greg KH May 22, 2018, 10:02 a.m. UTC | #2
On Tue, May 22, 2018 at 01:20:01AM +0300, Andy Shevchenko wrote:
> On Mon, May 21, 2018 at 2:57 PM, Yisheng Xie <xieyisheng1@huawei.com> wrote:
> > match_string() returns the index of an array for a matching string,
> > which can be used intead of open coded variant.
> 
> > -       int err, i;
> > +       int ret;
> 
> int err;
> 
> would still work.

And it reduces churn.
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Xie Yisheng May 22, 2018, 11:12 a.m. UTC | #3
Hi,

On 2018/5/22 18:02, Greg Kroah-Hartman wrote:
> On Tue, May 22, 2018 at 01:20:01AM +0300, Andy Shevchenko wrote:
>> On Mon, May 21, 2018 at 2:57 PM, Yisheng Xie <xieyisheng1@huawei.com> wrote:
>>> match_string() returns the index of an array for a matching string,
>>> which can be used intead of open coded variant.
>>
>>> -       int err, i;
>>> +       int ret;
>>
>> int err;
>>
>> would still work.
> 
> And it reduces churn.

I will keep it as err in next version.

Thanks
Yisheng
> 
> 

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diff mbox

Patch

diff --git a/drivers/usb/phy/of.c b/drivers/usb/phy/of.c
index 1ab134f..5777c9f 100644
--- a/drivers/usb/phy/of.c
+++ b/drivers/usb/phy/of.c
@@ -28,16 +28,14 @@ 
 enum usb_phy_interface of_usb_get_phy_mode(struct device_node *np)
 {
 	const char *phy_type;
-	int err, i;
+	int ret;
 
-	err = of_property_read_string(np, "phy_type", &phy_type);
-	if (err < 0)
+	ret = of_property_read_string(np, "phy_type", &phy_type);
+	if (ret < 0)
 		return USBPHY_INTERFACE_MODE_UNKNOWN;
 
-	for (i = 0; i < ARRAY_SIZE(usbphy_modes); i++)
-		if (!strcmp(phy_type, usbphy_modes[i]))
-			return i;
+	ret = match_string(usbphy_modes, ARRAY_SIZE(usbphy_modes), phy_type);
 
-	return USBPHY_INTERFACE_MODE_UNKNOWN;
+	return (ret < 0) ? USBPHY_INTERFACE_MODE_UNKNOWN : ret;
 }
 EXPORT_SYMBOL_GPL(of_usb_get_phy_mode);