mac_oldworld: Drop some variables

Values not used frequently enough may not worth putting in a local
variable, especially with names almost as long as the original value
because that does not improve readability, to the contrary it makes it
harder to see what value is used. Drop a few such variables.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <d67bc8d914a366ca6822b5190c1308d31af5c9b3.1602805637.git.balaton@eik.bme.hu>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>

diff --git a/hw/ppc/mac_oldworld.c b/hw/ppc/mac_oldworld.c
index 1abf26b5b44e80b2ad58a222d57d7d0fb2488771..e34680f980d0ac468331f8443d5f52f30872ec10 100644 (file)
--- a/hw/ppc/mac_oldworld.c
+++ b/hw/ppc/mac_oldworld.c
@@ -83,14 +83,11 @@ static void ppc_heathrow_reset(void *opaque)
 static void ppc_heathrow_init(MachineState *machine)
 {
     ram_addr_t ram_size = machine->ram_size;
-    const char *kernel_filename = machine->kernel_filename;
-    const char *kernel_cmdline = machine->kernel_cmdline;
-    const char *initrd_filename = machine->initrd_filename;
     const char *boot_device = machine->boot_order;
     PowerPCCPU *cpu = NULL;
     CPUPPCState *env = NULL;
     char *filename;
-    int linux_boot, i;
+    int i;
     MemoryRegion *bios = g_new(MemoryRegion, 1);
     uint32_t kernel_base, initrd_base, cmdline_base = 0;
     int32_t kernel_size, initrd_size;
@@ -109,8 +106,6 @@ static void ppc_heathrow_init(MachineState *machine)
     void *fw_cfg;
     uint64_t tbfreq;
 
-    linux_boot = (kernel_filename != NULL);
-
     /* init CPUs */
     for (i = 0; i < smp_cpus; i++) {
         cpu = POWERPC_CPU(cpu_create(machine->cpu_type));
@@ -147,7 +142,7 @@ static void ppc_heathrow_init(MachineState *machine)
         bios_addr = (uint32_t)bios_addr;
 
         if (bios_size <= 0) {
-            /* or load binary ROM image */
+            /* or if could not load ELF try loading a binary ROM image */
             bios_size = load_image_targphys(filename, PROM_BASE, PROM_SIZE);
             bios_addr = PROM_BASE;
         }
@@ -160,7 +155,7 @@ static void ppc_heathrow_init(MachineState *machine)
         exit(1);
     }
 
-    if (linux_boot) {
+    if (machine->kernel_filename) {
         int bswap_needed;
 
 #ifdef BSWAP_NEEDED
@@ -169,29 +164,32 @@ static void ppc_heathrow_init(MachineState *machine)
         bswap_needed = 0;
 #endif
         kernel_base = KERNEL_LOAD_ADDR;
-        kernel_size = load_elf(kernel_filename, NULL,
+        kernel_size = load_elf(machine->kernel_filename, NULL,
                                translate_kernel_address, NULL, NULL, NULL,
                                NULL, NULL, 1, PPC_ELF_MACHINE, 0, 0);
         if (kernel_size < 0)
-            kernel_size = load_aout(kernel_filename, kernel_base,
+            kernel_size = load_aout(machine->kernel_filename, kernel_base,
                                     ram_size - kernel_base, bswap_needed,
                                     TARGET_PAGE_SIZE);
         if (kernel_size < 0)
-            kernel_size = load_image_targphys(kernel_filename,
+            kernel_size = load_image_targphys(machine->kernel_filename,
                                               kernel_base,
                                               ram_size - kernel_base);
         if (kernel_size < 0) {
-            error_report("could not load kernel '%s'", kernel_filename);
+            error_report("could not load kernel '%s'",
+                         machine->kernel_filename);
             exit(1);
         }
         /* load initrd */
-        if (initrd_filename) {
-            initrd_base = TARGET_PAGE_ALIGN(kernel_base + kernel_size + KERNEL_GAP);
-            initrd_size = load_image_targphys(initrd_filename, initrd_base,
+        if (machine->initrd_filename) {
+            initrd_base = TARGET_PAGE_ALIGN(kernel_base + kernel_size +
+                                            KERNEL_GAP);
+            initrd_size = load_image_targphys(machine->initrd_filename,
+                                              initrd_base,
                                               ram_size - initrd_base);
             if (initrd_size < 0) {
                 error_report("could not load initial ram disk '%s'",
-                             initrd_filename);
+                             machine->initrd_filename);
                 exit(1);
             }
             cmdline_base = TARGET_PAGE_ALIGN(initrd_base + initrd_size);
@@ -343,9 +341,10 @@ static void ppc_heathrow_init(MachineState *machine)
     fw_cfg_add_i16(fw_cfg, FW_CFG_MACHINE_ID, ARCH_HEATHROW);
     fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ADDR, kernel_base);
     fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size);
-    if (kernel_cmdline) {
+    if (machine->kernel_cmdline) {
         fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, cmdline_base);
-        pstrcpy_targphys("cmdline", cmdline_base, TARGET_PAGE_SIZE, kernel_cmdline);
+        pstrcpy_targphys("cmdline", cmdline_base, TARGET_PAGE_SIZE,
+                         machine->kernel_cmdline);
     } else {
         fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, 0);
     }