Commit 47d73ba4f4a4 ("board: sifive: overwrite board_fdt_blob_setup in u-boot proper") added a board-specific implementation of board_fdt_blob_setup() which takes a pointer as the return value, but it does not return anything if CONFIG_OF_SEPARATE is not enabled. This will cause a build warning seen when testing booting S-mode U-Boot directly from QEMU, per the instructions in [1]:
board/sifive/unleashed/unleashed.c: In function ‘board_fdt_blob_setup’: board/sifive/unleashed/unleashed.c:125:1: warning: control reaches end of non-void function [-Wreturn-type]
Return &_end as the default case.
[1] https://qemu.readthedocs.io/en/latest/system/riscv/sifive_u.html#running-u-b...
Signed-off-by: Bin Meng bmeng.cn@gmail.com ---
board/sifive/unleashed/unleashed.c | 4 ++-- board/sifive/unmatched/unmatched.c | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/board/sifive/unleashed/unleashed.c b/board/sifive/unleashed/unleashed.c index 8cd514df30..33baeda986 100644 --- a/board/sifive/unleashed/unleashed.c +++ b/board/sifive/unleashed/unleashed.c @@ -119,9 +119,9 @@ void *board_fdt_blob_setup(void) if (IS_ENABLED(CONFIG_OF_SEPARATE)) { if (gd->arch.firmware_fdt_addr) return (ulong *)gd->arch.firmware_fdt_addr; - else - return (ulong *)&_end; } + + return (ulong *)&_end; }
int board_init(void) diff --git a/board/sifive/unmatched/unmatched.c b/board/sifive/unmatched/unmatched.c index d90b252bae..8773b660fa 100644 --- a/board/sifive/unmatched/unmatched.c +++ b/board/sifive/unmatched/unmatched.c @@ -16,9 +16,9 @@ void *board_fdt_blob_setup(void) if (IS_ENABLED(CONFIG_OF_SEPARATE)) { if (gd->arch.firmware_fdt_addr) return (ulong *)gd->arch.firmware_fdt_addr; - else - return (ulong *)&_end; } + + return (ulong *)&_end; }
int board_init(void)