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To check if a certain function (here e.g. pwmchip_add()) can be called IS_REACHABLE is the better check. The relevant difference to IS_ENABLED is that IS_REACHABLE evaluates to 0 if the current code is builtin but the checked symbol is =m and so must not be used. Today there is no practical impact as CONFIG_PWM is a bool. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
34 KiB
34 KiB