pxe_utils: Clean up {bootm,zboot}_argv generation

Signed-off-by: Zhaofeng Li <hello@zhaofeng.li>
Cc: Simon Glass <sjg@chromium.org>
Cc: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

diff --git a/cmd/pxe_utils.c b/cmd/pxe_utils.c
index 78ebfdc..b79fcb6 100644 (file)
--- a/cmd/pxe_utils.c
+++ b/cmd/pxe_utils.c
@@ -442,15 +442,17 @@ static int label_boot(struct cmd_tbl *cmdtp, struct pxe_label *label)
 {
        char *bootm_argv[] = { "bootm", NULL, NULL, NULL, NULL };
        char *zboot_argv[] = { "zboot", NULL, "0", NULL, NULL };
-       char initrd_str[28];
+       char *kernel_addr = NULL;
+       char *initrd_addr_str = NULL;
        char initrd_filesize[10];
+       char initrd_str[28];
        char mac_str[29] = "";
        char ip_str[68] = "";
        char *fit_addr = NULL;
        int bootm_argc = 2;
        int zboot_argc = 3;
        int len = 0;
-       ulong kernel_addr;
+       ulong kernel_addr_r;
        void *buf;
 
        label_print(label);
@@ -476,16 +478,12 @@ static int label_boot(struct cmd_tbl *cmdtp, struct pxe_label *label)
                        return 1;
                }
 
-               bootm_argv[2] = initrd_str;
-               strncpy(bootm_argv[2], env_get("ramdisk_addr_r"), 18);
-               strcat(bootm_argv[2], ":");
-               strncat(bootm_argv[2], env_get("filesize"), 9);
-               bootm_argc = 3;
-
+               initrd_addr_str = env_get("ramdisk_addr_r");
                strncpy(initrd_filesize, env_get("filesize"), 9);
-               zboot_argv[3] = env_get("ramdisk_addr_r");
-               zboot_argv[4] = initrd_filesize;
-               zboot_argc = 5;
+
+               strncpy(initrd_str, initrd_addr_str, 18);
+               strcat(initrd_str, ":");
+               strncat(initrd_str, initrd_filesize, 9);
        }
 
        if (get_relfile_envaddr(cmdtp, label->kernel, "kernel_addr_r") < 0) {
@@ -536,20 +534,19 @@ static int label_boot(struct cmd_tbl *cmdtp, struct pxe_label *label)
                printf("append: %s\n", finalbootargs);
        }
 
-       bootm_argv[1] = env_get("kernel_addr_r");
-       zboot_argv[1] = env_get("kernel_addr_r");
+       kernel_addr = env_get("kernel_addr_r");
 
        /* for FIT, append the configuration identifier */
        if (label->config) {
-               int len = strlen(bootm_argv[1]) + strlen(label->config) + 1;
+               int len = strlen(kernel_addr) + strlen(label->config) + 1;
 
                fit_addr = malloc(len);
                if (!fit_addr) {
                        printf("malloc fail (FIT address)\n");
                        return 1;
                }
-               snprintf(fit_addr, len, "%s%s", bootm_argv[1], label->config);
-               bootm_argv[1] = fit_addr;
+               snprintf(fit_addr, len, "%s%s", kernel_addr, label->config);
+               kernel_addr = fit_addr;
        }
 
        /*
@@ -653,6 +650,18 @@ static int label_boot(struct cmd_tbl *cmdtp, struct pxe_label *label)
                }
        }
 
+       bootm_argv[1] = kernel_addr;
+       zboot_argv[1] = kernel_addr;
+
+       if (initrd_addr_str) {
+               bootm_argv[2] = initrd_str;
+               bootm_argc = 3;
+
+               zboot_argv[3] = initrd_addr_str;
+               zboot_argv[4] = initrd_filesize;
+               zboot_argc = 5;
+       }
+
        if (!bootm_argv[3])
                bootm_argv[3] = env_get("fdt_addr");
 
@@ -662,8 +671,8 @@ static int label_boot(struct cmd_tbl *cmdtp, struct pxe_label *label)
                bootm_argc = 4;
        }
 
-       kernel_addr = genimg_get_kernel_addr(bootm_argv[1]);
-       buf = map_sysmem(kernel_addr, 0);
+       kernel_addr_r = genimg_get_kernel_addr(kernel_addr);
+       buf = map_sysmem(kernel_addr_r, 0);
        /* Try bootm for legacy and FIT format image */
        if (genimg_get_format(buf) != IMAGE_FORMAT_INVALID)
                do_bootm(cmdtp, 0, bootm_argc, bootm_argv);