From: Arnd Bergmann <arnd@xxxxxxxx> Some randconfig builds include ia_css_firmware.h without first including linux/device.h: In file included from atomisp/pci/mmu/sh_mmu_mrfld.c:23: In file included from atomisp/pci/atomisp_compat.h:22: In file included from atomisp/pci/atomisp_compat_css20.h:24: In file included from atomisp/pci/ia_css.h:28: In file included from atomisp/pci/ia_css_control.h:25: drivers/staging/media/atomisp//pci/ia_css_firmware.h:52:29: error: declaration of 'struct device' will not be visible outside of this function [-Werror,-Wvisibility] Add a forward declaration to avoid the warning. Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> --- drivers/staging/media/atomisp/pci/ia_css_firmware.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/staging/media/atomisp/pci/ia_css_firmware.h b/drivers/staging/media/atomisp/pci/ia_css_firmware.h index edab72256494..38f0408947d1 100644 --- a/drivers/staging/media/atomisp/pci/ia_css_firmware.h +++ b/drivers/staging/media/atomisp/pci/ia_css_firmware.h @@ -30,6 +30,8 @@ struct ia_css_fw { unsigned int bytes; /** length in bytes of firmware data */ }; +struct device; + /* @brief Loads the firmware * @param[in] env Environment, provides functions to access the * environment in which the CSS code runs. This is -- 2.29.2