[PATCH v5 04/11] mac_oldworld: Drop some variables

From: BALATON Zoltan <balaton@eik.bme.hu>
To: qemu-devel@nongnu.org, qemu-ppc@nongnu.org
Cc: Howard Spoelstra <hsp.cat7@gmail.com>,
	Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>,
	David Gibson <david@gibson.dropbear.id.au>
Subject: [PATCH v5 04/11] mac_oldworld: Drop some variables
Date: Tue, 16 Jun 2020 15:47:06 +0200	[thread overview]
Message-ID: <de15b4f489d2277d0d11c0b652c514905ee8f875.1592315226.git.balaton@eik.bme.hu> (raw)
In-Reply-To: <cover.1592315226.git.balaton@eik.bme.hu>

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>
---
 hw/ppc/mac_oldworld.c | 33 ++++++++++++++++-----------------
 1 file changed, 16 insertions(+), 17 deletions(-)

diff --git a/hw/ppc/mac_oldworld.c b/hw/ppc/mac_oldworld.c
index d1c4244b1e..4200008851 100644
--- 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;
@@ -108,8 +105,6 @@ 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));
@@ -159,7 +154,7 @@ static void ppc_heathrow_init(MachineState *machine)
         exit(1);
     }
 
-    if (linux_boot) {
+    if (machine->kernel_filename) {
         uint64_t lowaddr = 0;
         int bswap_needed;
 
@@ -169,30 +164,33 @@ 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, &lowaddr, 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);
@@ -336,9 +334,10 @@ 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);
     }
-- 
2.21.3


