fpga: define dummy fpga_load function for debug build

This fixes below build error when CC_OPTIMIZE_FOR_DEBUG is enabled and
CONFIG_FPGA or CONFIG_SPL_FPGA are not enabled.
When CC_OPTIMIZE_FOR_DEBUG is enabled, unused code will not be optimized
out. Hence, fpga_load function must have a dummy implementation to avoid
the build error.

../common/spl/spl_fit.c:591: undefined reference to `fpga_load'
collect2: error: ld returned 1 exit status

Signed-off-by: Chanho Park <chanho61.park@samsung.com>
Link: https://lore.kernel.org/r/20230831075247.137501-1-chanho61.park@samsung.com
Signed-off-by: Michal Simek <michal.simek@amd.com>

diff --git a/include/fpga.h b/include/fpga.h
index ed688cc0fa3bf4a4ca3310760afc01d0e9d3e50e..44f2755a3f10bec1382fc1a199fb2be64d689a8c 100644 (file)
--- a/include/fpga.h
+++ b/include/fpga.h
@@ -60,8 +60,16 @@ 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 CONFIG_IS_ENABLED(FPGA)
 int fpga_load(int devnum, const void *buf, size_t bsize,
              bitstream_type bstype, int flags);
+#else
+static inline int fpga_load(int devnum, const void *buf, size_t bsize,
+             bitstream_type bstype, int flags)
+{
+       return FPGA_FAIL;
+}
+#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,