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Commit dcb5d0fc authored by Andrew Lunn's avatar Andrew Lunn Committed by David S. Miller
Browse files

hwmon: Add helper to tell if a char is invalid in a name 



HWMON device names are not allowed to contain "-* \t\n". Add a helper
which will return true if passed an invalid character. It can be used
to massage a string into a hwmon compatible name by replacing invalid
characters with '_'.

Signed-off-by: default avatarAndrew Lunn <andrew@lunn.ch>
Acked-by: default avatarGuenter Roeck <linux@roeck-us.net>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent aa7f29b0

include/linux/hwmon.h

+23 −0
Original line number Diff line number Diff line
@@ -398,4 +398,27 @@ devm_hwmon_device_register_with_info(struct device *dev, 
void hwmon_device_unregister(struct device *dev);

void devm_hwmon_device_unregister(struct device *dev);



/**

 * hwmon_is_bad_char - Is the char invalid in a hwmon name

 * @ch: the char to be considered

 *

 * hwmon_is_bad_char() can be used to determine if the given character

 * may not be used in a hwmon name.

 *

 * Returns true if the char is invalid, false otherwise.

 */

static inline bool hwmon_is_bad_char(const char ch)

{

	switch (ch) {

	case '-':

	case '*':

	case ' ':

	case '\t':

	case '\n':

		return true;

	default:

		return false;

	}

}



#endif