[PATCH 03/20] hw/block: Pass DeviceState to pflash_cfi01_get_memory()

["Philippe Mathieu-Daudé" <philmd@linaro.org>]

The point of a getter() function is to not expose the structure
internal fields. Otherwise callers could simply access the
PFlashCFI01::mem field.

Have the callers pass a DeviceState* argument. The QOM
type check is done in the callee.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 hw/block/pflash_cfi01.c  | 4 +++-
 hw/i386/pc_sysfw.c       | 2 +-
 hw/mips/malta.c          | 3 ++-
 hw/ppc/e500.c            | 2 +-
 hw/xtensa/xtfpga.c       | 2 +-
 include/hw/block/flash.h | 2 +-
 6 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/hw/block/pflash_cfi01.c b/hw/block/pflash_cfi01.c
index 8beba24989..866ea596ea 100644
--- a/hw/block/pflash_cfi01.c
+++ b/hw/block/pflash_cfi01.c
@@ -991,8 +991,10 @@ BlockBackend *pflash_cfi01_get_blk(DeviceState *dev)
     return fl->blk;
 }
 
-MemoryRegion *pflash_cfi01_get_memory(PFlashCFI01 *fl)
+MemoryRegion *pflash_cfi01_get_memory(DeviceState *dev)
 {
+    PFlashCFI01 *fl = PFLASH_CFI01(dev);
+
     return &fl->mem;
 }
 
diff --git a/hw/i386/pc_sysfw.c b/hw/i386/pc_sysfw.c
index c08cba6628..60db0efb41 100644
--- a/hw/i386/pc_sysfw.c
+++ b/hw/i386/pc_sysfw.c
@@ -187,7 +187,7 @@ static void pc_system_flash_map(PCMachineState *pcms,
                         0x100000000ULL - total_size);
 
         if (i == 0) {
-            flash_mem = pflash_cfi01_get_memory(system_flash);
+            flash_mem = pflash_cfi01_get_memory(DEVICE(system_flash));
             pc_isa_bios_init(rom_memory, flash_mem, size);
 
             /* Encrypt the pflash boot ROM */
diff --git a/hw/mips/malta.c b/hw/mips/malta.c
index c0a2e0ab04..43fbb97799 100644
--- a/hw/mips/malta.c
+++ b/hw/mips/malta.c
@@ -1291,7 +1291,8 @@ void mips_malta_init(MachineState *machine)
                                dinfo ? blk_by_legacy_dinfo(dinfo) : NULL,
                                65536,
                                4, 0x0000, 0x0000, 0x0000, 0x0000, be);
-    bios = pflash_cfi01_get_memory(fl);
+    dev = DEVICE(fl);
+    bios = pflash_cfi01_get_memory(dev);
     fl_idx++;
     if (kernel_filename) {
         ram_low_size = MIN(ram_size, 256 * MiB);
diff --git a/hw/ppc/e500.c b/hw/ppc/e500.c
index 9fa1f8e6cf..b127068431 100644
--- a/hw/ppc/e500.c
+++ b/hw/ppc/e500.c
@@ -1144,7 +1144,7 @@ void ppce500_init(MachineState *machine)
         sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
 
         memory_region_add_subregion(&pms->pbus_dev->mmio, 0,
-                                    pflash_cfi01_get_memory(PFLASH_CFI01(dev)));
+                                    pflash_cfi01_get_memory(dev));
     }
 
     /*
diff --git a/hw/xtensa/xtfpga.c b/hw/xtensa/xtfpga.c
index 2a5556a35f..bce3a543b0 100644
--- a/hw/xtensa/xtfpga.c
+++ b/hw/xtensa/xtfpga.c
@@ -459,7 +459,7 @@ static void xtfpga_init(const XtfpgaBoardDesc *board, MachineState *machine)
         }
     } else {
         if (flash) {
-            MemoryRegion *flash_mr = pflash_cfi01_get_memory(flash);
+            MemoryRegion *flash_mr = pflash_cfi01_get_memory(DEVICE(flash));
             MemoryRegion *flash_io = g_malloc(sizeof(*flash_io));
             uint32_t size = env->config->sysrom.location[0].size;
 
diff --git a/include/hw/block/flash.h b/include/hw/block/flash.h
index 701a2c1701..25affdf7a5 100644
--- a/include/hw/block/flash.h
+++ b/include/hw/block/flash.h
@@ -22,7 +22,7 @@ PFlashCFI01 *pflash_cfi01_register(hwaddr base,
                                    uint16_t id2, uint16_t id3,
                                    int be);
 BlockBackend *pflash_cfi01_get_blk(DeviceState *dev);
-MemoryRegion *pflash_cfi01_get_memory(PFlashCFI01 *fl);
+MemoryRegion *pflash_cfi01_get_memory(DeviceState *dev);
 void pflash_cfi01_legacy_drive(DeviceState *dev, DriveInfo *dinfo);
 
 /* pflash_cfi02.c */
-- 
2.38.1