Building orangepi_pc_defconfig with GCC 9.2.1 (Debian Bullseye) fails:
arch/arm/cpu/armv7/sunxi/psci.c: In function ‘sunxi_cpu_set_power’: arch/arm/cpu/armv7/sunxi/psci.c:163:21: error: taking address of packed member of ‘struct sunxi_prcm_reg’ may result in an unaligned pointer value [-Werror=address-of-packed-member] 163 | sunxi_power_switch(&prcm->cpu_pwr_clamp[cpu], &prcm->cpu_pwroff, | ^~~~~~~~~~~~~~~~~~~~~~~~~ arch/arm/cpu/armv7/sunxi/psci.c:163:48: error: taking address of packed member of ‘struct sunxi_prcm_reg’ may result in an unaligned pointer value [-Werror=address-of-packed-member] 163 | sunxi_power_switch(&prcm->cpu_pwr_clamp[cpu], &prcm->cpu_pwroff, | ^~~~~~~~~~~~~~~~~
Best regards
Heinrich Schucahrdt