From: Martin Blumenstingl martin.blumenstingl@googlemail.com
commit 3f5b9959041e0db6dacbea80bb833bff5900999f upstream.
When CONFIG_DEVFREQ_THERMAL is disabled all functions except of_devfreq_cooling_register_power() were already inlined. Also inline the last function to avoid compile errors when multiple drivers call of_devfreq_cooling_register_power() when CONFIG_DEVFREQ_THERMAL is not set. Compilation failed with the following message: multiple definition of `of_devfreq_cooling_register_power' (which then lists all usages of of_devfreq_cooling_register_power())
Thomas Zimmermann reported this problem [0] on a kernel config with CONFIG_DRM_LIMA={m,y}, CONFIG_DRM_PANFROST={m,y} and CONFIG_DEVFREQ_THERMAL=n after both, the lima and panfrost drivers gained devfreq cooling support.
[0] https://www.spinics.net/lists/dri-devel/msg252825.html
Fixes: a76caf55e5b356 ("thermal: Add devfreq cooling") Cc: stable@vger.kernel.org Reported-by: Thomas Zimmermann tzimmermann@suse.de Signed-off-by: Martin Blumenstingl martin.blumenstingl@googlemail.com Tested-by: Thomas Zimmermann tzimmermann@suse.de Signed-off-by: Daniel Lezcano daniel.lezcano@linaro.org Link: https://lore.kernel.org/r/20200403205133.1101808-1-martin.blumenstingl@googl... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- include/linux/devfreq_cooling.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/include/linux/devfreq_cooling.h +++ b/include/linux/devfreq_cooling.h @@ -53,7 +53,7 @@ void devfreq_cooling_unregister(struct t
#else /* !CONFIG_DEVFREQ_THERMAL */
-struct thermal_cooling_device * +static inline struct thermal_cooling_device * of_devfreq_cooling_register_power(struct device_node *np, struct devfreq *df, struct devfreq_cooling_power *dfc_power) {