In case CC_OPTIMIZE_FOR_DEBUG is set, unused code will not be optimized out, hence the reference to fpga_load will be compiled. if DM_FPGA and SPL_FPGA are not set, the build will fail with :
aarch64-none-linux-gnu-ld.bfd: common/spl/spl_fit.o: in function `spl_fit_upload_fpga': u-boot/common/spl/spl_fit.c:595: undefined reference to `fpga_load' To solve this, added an inline empty stub in the header if CC_OPTIMIZE_FOR_DEBUG is set such that the build will succeed. Signed-off-by: Eugen Hristev <eugen.hris...@collabora.com> --- Changes in v3: - return -ENOSYS Changes in v2: - this is a rework as suggested by Simon of this previous patch : https://patchwork.ozlabs.org/project/uboot/patch/20230619102839.277902-1-eugen.hris...@collabora.com/ include/fpga.h | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/include/fpga.h b/include/fpga.h index ed688cc0fa3b..33d0dbbe2ba4 100644 --- a/include/fpga.h +++ b/include/fpga.h @@ -60,8 +60,17 @@ int fpga_add(fpga_type devtype, void *desc); int fpga_count(void); const fpga_desc *const fpga_get_desc(int devnum); int fpga_is_partial_data(int devnum, size_t img_len); +#if defined(CONFIG_CC_OPTIMIZE_FOR_DEBUG) +static inline int fpga_load(int devnum, const void *buf, size_t bsize, + bitstream_type bstype, int flags) +{ + return -ENOSYS; +} +#else int fpga_load(int devnum, const void *buf, size_t bsize, bitstream_type bstype, int flags); +#endif + int fpga_fsload(int devnum, const void *buf, size_t size, fpga_fs_info *fpga_fsinfo); int fpga_loads(int devnum, const void *buf, size_t size, -- 2.34.1
