[PULL 37/54] hw/misc/mps2-fpgaio: Fold counters subsection into main vmstate

[Peter Maydell]

We've already broken migration compatibility for all the MPS
boards, so we might as well take advantage of this to simplify
the vmstate for the FPGAIO device by folding the counters
subsection into the main vmstate description.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210219144617.4782-38-peter.maydell@linaro.org
---
 hw/misc/mps2-fpgaio.c | 30 +++++-------------------------
 1 file changed, 5 insertions(+), 25 deletions(-)

diff --git a/hw/misc/mps2-fpgaio.c b/hw/misc/mps2-fpgaio.c
index f3db88ddcc8..72598c8a3d2 100644
--- a/hw/misc/mps2-fpgaio.c
+++ b/hw/misc/mps2-fpgaio.c
@@ -285,41 +285,21 @@ static void mps2_fpgaio_realize(DeviceState *dev, Error 
**errp)
     }
 }
 
-static bool mps2_fpgaio_counters_needed(void *opaque)
-{
-    /* Currently vmstate.c insists all subsections have a 'needed' function */
-    return true;
-}
-
-static const VMStateDescription mps2_fpgaio_counters_vmstate = {
-    .name = "mps2-fpgaio/counters",
+static const VMStateDescription mps2_fpgaio_vmstate = {
+    .name = "mps2-fpgaio",
     .version_id = 2,
     .minimum_version_id = 2,
-    .needed = mps2_fpgaio_counters_needed,
     .fields = (VMStateField[]) {
+        VMSTATE_UINT32(led0, MPS2FPGAIO),
+        VMSTATE_UINT32(prescale, MPS2FPGAIO),
+        VMSTATE_UINT32(misc, MPS2FPGAIO),
         VMSTATE_INT64(clk1hz_tick_offset, MPS2FPGAIO),
         VMSTATE_INT64(clk100hz_tick_offset, MPS2FPGAIO),
         VMSTATE_UINT32(counter, MPS2FPGAIO),
         VMSTATE_UINT32(pscntr, MPS2FPGAIO),
         VMSTATE_INT64(pscntr_sync_ticks, MPS2FPGAIO),
         VMSTATE_END_OF_LIST()
-    }
-};
-
-static const VMStateDescription mps2_fpgaio_vmstate = {
-    .name = "mps2-fpgaio",
-    .version_id = 1,
-    .minimum_version_id = 1,
-    .fields = (VMStateField[]) {
-        VMSTATE_UINT32(led0, MPS2FPGAIO),
-        VMSTATE_UINT32(prescale, MPS2FPGAIO),
-        VMSTATE_UINT32(misc, MPS2FPGAIO),
-        VMSTATE_END_OF_LIST()
     },
-    .subsections = (const VMStateDescription*[]) {
-        &mps2_fpgaio_counters_vmstate,
-        NULL
-    }
 };
 
 static Property mps2_fpgaio_properties[] = {
-- 
2.20.1