cmdline' isn't being used. A MachineState pointer is being retrieved via
a MACHINE() macro calling qdev_get_machine(). 'mem_size' is being set as
machine->ram_size.

Remove the 'cmdline' and 'mem_size' parameters, add MachineState as a
parameter to avoid the cast and retrieve 'mem_size' via ms->ram_size.

Cc: Palmer Dabbelt <palmer@dabbelt.com>
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
---
 hw/riscv/sifive_u.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/hw/riscv/sifive_u.c b/hw/riscv/sifive_u.c
index 0c9bf7fe6a..97a561dc52 100644
--- a/hw/riscv/sifive_u.c
+++ b/hw/riscv/sifive_u.c
@@ -93,10 +93,10 @@ static const MemMapEntry sifive_u_memmap[] = {
 #define OTP_SERIAL          1
 #define GEM_REVISION        0x10070109
 
-static void create_fdt(SiFiveUState *s, const MemMapEntry *memmap,
-                       uint64_t mem_size, const char *cmdline, bool is_32_bit)
+static void create_fdt(MachineState *ms, SiFiveUState *s,
+                       const MemMapEntry *memmap, bool is_32_bit)
 {
-    MachineState *ms = MACHINE(qdev_get_machine());
+    uint64_t mem_size = ms->ram_size;
     void *fdt;
     int cpu, fdt_size;
     uint32_t *cells;
@@ -560,8 +560,7 @@ static void sifive_u_machine_init(MachineState *machine)
                           qemu_allocate_irq(sifive_u_machine_reset, NULL, 0));
 
     /* create device tree */
-    create_fdt(s, memmap, machine->ram_size, machine->kernel_cmdline,
-               riscv_is_32bit(&s->soc.u_cpus));
+    create_fdt(machine, s, memmap, riscv_is_32bit(&s->soc.u_cpus));
 
     if (s->start_in_flash) {
         /*
-- 
2.38.1