[PULL,10/10] RISC-V: Don't add NULL bootargs to device-tree

Message ID 20181011203115.18666-11-alistair.francis@wdc.com
State New
Headers show
Series
  • riscv-pullreq queue
Related show

Commit Message

Alistair Francis Oct. 11, 2018, 8:32 p.m.
From: Michael Clark <mjc@sifive.com>

Cc: Palmer Dabbelt <palmer@sifive.com>
Cc: Alistair Francis <Alistair.Francis@wdc.com>
Signed-off-by: Michael Clark <mjc@sifive.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Palmer Dabbelt <palmer@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
---
 hw/riscv/sifive_u.c | 4 +++-
 hw/riscv/spike.c    | 6 ++++--
 hw/riscv/virt.c     | 4 +++-
 3 files changed, 10 insertions(+), 4 deletions(-)

Patch

diff --git a/hw/riscv/sifive_u.c b/hw/riscv/sifive_u.c
index 4e273119c3..0c51c61082 100644
--- a/hw/riscv/sifive_u.c
+++ b/hw/riscv/sifive_u.c
@@ -259,7 +259,9 @@  static void create_fdt(SiFiveUState *s, const struct MemmapEntry *memmap,
 
     qemu_fdt_add_subnode(fdt, "/chosen");
     qemu_fdt_setprop_string(fdt, "/chosen", "stdout-path", nodename);
-    qemu_fdt_setprop_string(fdt, "/chosen", "bootargs", cmdline);
+    if (cmdline) {
+        qemu_fdt_setprop_string(fdt, "/chosen", "bootargs", cmdline);
+    }
     g_free(nodename);
 }
 
diff --git a/hw/riscv/spike.c b/hw/riscv/spike.c
index be5ef85e81..8a712ed490 100644
--- a/hw/riscv/spike.c
+++ b/hw/riscv/spike.c
@@ -156,8 +156,10 @@  static void create_fdt(SpikeState *s, const struct MemmapEntry *memmap,
     g_free(cells);
     g_free(nodename);
 
-    qemu_fdt_add_subnode(fdt, "/chosen");
-    qemu_fdt_setprop_string(fdt, "/chosen", "bootargs", cmdline);
+    if (cmdline) {
+        qemu_fdt_add_subnode(fdt, "/chosen");
+        qemu_fdt_setprop_string(fdt, "/chosen", "bootargs", cmdline);
+    }
  }
 
 static void spike_v1_10_0_board_init(MachineState *machine)
diff --git a/hw/riscv/virt.c b/hw/riscv/virt.c
index 3f30eb74d2..62add47667 100644
--- a/hw/riscv/virt.c
+++ b/hw/riscv/virt.c
@@ -284,7 +284,9 @@  static void *create_fdt(RISCVVirtState *s, const struct MemmapEntry *memmap,
 
     qemu_fdt_add_subnode(fdt, "/chosen");
     qemu_fdt_setprop_string(fdt, "/chosen", "stdout-path", nodename);
-    qemu_fdt_setprop_string(fdt, "/chosen", "bootargs", cmdline);
+    if (cmdline) {
+        qemu_fdt_setprop_string(fdt, "/chosen", "bootargs", cmdline);
+    }
     g_free(nodename);
 
     return fdt;