openrisc: use boot_command_line instead of private cmd_line

Save some pointless copying of the kernel command line and just use
boot_command_line instead. The DT code already handles CONFIG_CMDLINE,
so a separate copy is not needed.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: linux@lists.openrisc.net
Reviewed-by: Grant Likely <grant.likely@linaro.org>

2 files changed, 2 insertions, 9 deletions

diff --git a/arch/openrisc/kernel/prom.c b/arch/openrisc/kernel/prom.c
index a63e76872f84..bf3fd05703c3 100644
--- a/arch/openrisc/kernel/prom.c
+++ b/arch/openrisc/kernel/prom.c
@@ -47,8 +47,6 @@
 #include <asm/sections.h>
 #include <asm/setup.h>
 
-extern char cmd_line[COMMAND_LINE_SIZE];
-
 void __init early_init_dt_add_memory_arch(u64 base, u64 size)
 {
         size &= PAGE_MASK;
@@ -67,15 +65,12 @@ void __init early_init_devtree(void *params)
          * device-tree, including the platform type, initrd location and
          * size, TCE reserve, and more ...
          */
-        of_scan_flat_dt(early_init_dt_scan_chosen, cmd_line);
+        of_scan_flat_dt(early_init_dt_scan_chosen, boot_command_line);
 
         /* Scan memory nodes and rebuild MEMBLOCKs */
         of_scan_flat_dt(early_init_dt_scan_root, NULL);
         of_scan_flat_dt(early_init_dt_scan_memory, NULL);
 
-        /* Save command line for /proc/cmdline and then parse parameters */
-        strlcpy(boot_command_line, cmd_line, COMMAND_LINE_SIZE);
-
         memblock_allow_resize();
 
         /* We must copy the flattend device tree from init memory to regular
diff --git a/arch/openrisc/kernel/setup.c b/arch/openrisc/kernel/setup.c
index d7359ffbcbdd..719c5c8895c4 100644
--- a/arch/openrisc/kernel/setup.c
+++ b/arch/openrisc/kernel/setup.c
@@ -50,8 +50,6 @@
 
 #include "vmlinux.h"
 
-char __initdata cmd_line[COMMAND_LINE_SIZE] = CONFIG_CMDLINE;
-
 static unsigned long __init setup_memory(void)
 {
         unsigned long bootmap_size;
@@ -316,7 +314,7 @@ void __init setup_arch(char **cmdline_p)
                 conswitchp = &dummy_con;
 #endif
 
-        *cmdline_p = cmd_line;
+        *cmdline_p = boot_command_line;
 
         printk(KERN_INFO "OpenRISC Linux -- http://openrisc.net\n");
 }