On 2022/3/25 21:05, Maxime Ripard wrote:
Hi,
On Fri, Mar 25, 2022 at 10:18:31AM +0800, Zheng Bin wrote:
If CONFIG_DRM_VC4=y, CONFIG_RASPBERRYPI_FIRMWARE=m, CONFIG_COMPILE_TEST=n, bulding fails:
drivers/gpu/drm/vc4/vc4_drv.o: In function `vc4_drm_bind': vc4_drv.c:(.text+0x320): undefined reference to `rpi_firmware_get' vc4_drv.c:(.text+0x320): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `rpi_firmware_get' vc4_drv.c:(.text+0x34c): undefined reference to `rpi_firmware_property' vc4_drv.c:(.text+0x34c): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `rpi_firmware_property' vc4_drv.c:(.text+0x354): undefined reference to `rpi_firmware_put' vc4_drv.c:(.text+0x354): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `rpi_firmware_put'
Make DRM_VC4 depends on RASPBERRYPI_FIRMWARE || COMPILE_TEST to fix this.
Fixes: c406ad5e4a85 ("drm/vc4: Notify the firmware when DRM is in charge") Reported-by: Hulk Robot hulkci@huawei.com Signed-off-by: Zheng Bin zhengbin13@huawei.com
v2: follow Maxime's advise, add RASPBERRYPI_FIRMWARE as an additional depends drivers/gpu/drm/vc4/Kconfig | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/vc4/Kconfig b/drivers/gpu/drm/vc4/Kconfig index de3424fed2fc..92d74ba7c449 100644 --- a/drivers/gpu/drm/vc4/Kconfig +++ b/drivers/gpu/drm/vc4/Kconfig @@ -2,6 +2,7 @@ config DRM_VC4 tristate "Broadcom VC4 Graphics" depends on ARCH_BCM || ARCH_BCM2835 || COMPILE_TEST
- depends on RASPBERRYPI_FIRMWARE || COMPILE_TEST
Why do we need the || COMPILE_TEST here?
The rpi_firmware_get, _property and _put functions aren't define if RASPBERRYPI_FIRMWARE, so we need that dependency every time, even if COMPILE_TEST is set?
include/soc/bcm2835/raspberrypi-firmware.h
#if IS_ENABLED(CONFIG_RASPBERRYPI_FIRMWARE)
struct rpi_firmware *rpi_firmware_get(struct device_node *firmware_node);/_property/_put
#else -->empty function
static inline struct rpi_firmware *rpi_firmware_get(struct device_node *firmware_node)/_property/_put { return NULL; } #endif
We can refer to drivers/pwm/Kconfig
config PWM_RASPBERRYPI_POE tristate "Raspberry Pi Firwmware PoE Hat PWM support" # Make sure not 'y' when RASPBERRYPI_FIRMWARE is 'm'. This can only # happen when COMPILE_TEST=y, hence the added !RASPBERRYPI_FIRMWARE. depends on RASPBERRYPI_FIRMWARE || (COMPILE_TEST && !RASPBERRYPI_FIRMWARE) -->There is no need to add (&& !RASPBERRYPI_FIRMWARE)
Maxime