[PATCH 3/4] powerpc: convert to generic builtin command line

[Daniel Walker]

This updates the powerpc code to use the CONFIG_GENERIC_CMDLINE
option.

[maksym.kokhan at globallogic.com: add strlcat to prom_init_check.sh
whitelist]
Cc: Daniel Walker <dwalker at fifo99.com>
Cc: Daniel Walker <danielwa at cisco.com>
Cc: xe-linux-external at cisco.com
Signed-off-by: Daniel Walker <danielwa at cisco.com>
Signed-off-by: Maksym Kokhan <maksym.kokhan at globallogic.com>
---
 arch/powerpc/Kconfig                   | 23 +----------------------
 arch/powerpc/kernel/prom_init.c        |  8 ++++----
 arch/powerpc/kernel/prom_init_check.sh |  2 +-
 3 files changed, 6 insertions(+), 27 deletions(-)

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index def41a06377b..385120ff0236 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -173,6 +173,7 @@ config PPC
 	select GENERIC_STRNCPY_FROM_USER
 	select GENERIC_STRNLEN_USER
 	select GENERIC_TIME_VSYSCALL
+	select GENERIC_CMDLINE
 	select HAVE_ARCH_AUDITSYSCALL
 	select HAVE_ARCH_JUMP_LABEL
 	select HAVE_ARCH_KGDB
@@ -780,28 +781,6 @@ config PPC_DENORMALISATION
 	  Add support for handling denormalisation of single precision
 	  values.  Useful for bare metal only.  If unsure say Y here.
 
-config CMDLINE_BOOL
-	bool "Default bootloader kernel arguments"
-
-config CMDLINE
-	string "Initial kernel command string"
-	depends on CMDLINE_BOOL
-	default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
-	help
-	  On some platforms, there is currently no way for the boot loader to
-	  pass arguments to the kernel. For these platforms, you can supply
-	  some command-line options at build time by entering them here.  In
-	  most cases you will need to specify the root device here.
-
-config CMDLINE_FORCE
-	bool "Always use the default kernel command string"
-	depends on CMDLINE_BOOL
-	help
-	  Always use the default kernel command string, even if the boot
-	  loader passes other arguments to the kernel.
-	  This is useful if you cannot or don't want to change the
-	  command-line options your boot loader passes to the kernel.
-
 config EXTRA_TARGETS
 	string "Additional default image types"
 	help
diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index f33ff4163a51..e8e9fca22470 100644
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -30,6 +30,7 @@
 #include <linux/delay.h>
 #include <linux/initrd.h>
 #include <linux/bitops.h>
+#include <linux/cmdline.h>
 #include <asm/prom.h>
 #include <asm/rtas.h>
 #include <asm/page.h>
@@ -637,11 +638,10 @@ static void __init early_cmdline_parse(void)
 	p = prom_cmd_line;
 	if ((long)prom.chosen > 0)
 		l = prom_getprop(prom.chosen, "bootargs", p, COMMAND_LINE_SIZE-1);
-#ifdef CONFIG_CMDLINE
+
 	if (l <= 0 || p[0] == '\0') /* dbl check */
-		strlcpy(prom_cmd_line,
-			CONFIG_CMDLINE, sizeof(prom_cmd_line));
-#endif /* CONFIG_CMDLINE */
+		cmdline_add_builtin_section(prom_cmd_line, NULL, sizeof(prom_cmd_line), __prombss);
+
 	prom_printf("command line: %s\n", prom_cmd_line);
 
 #ifdef CONFIG_PPC64
diff --git a/arch/powerpc/kernel/prom_init_check.sh b/arch/powerpc/kernel/prom_init_check.sh
index 667df97d2595..ab2acc8d8b5a 100644
--- a/arch/powerpc/kernel/prom_init_check.sh
+++ b/arch/powerpc/kernel/prom_init_check.sh
@@ -18,7 +18,7 @@
 
 WHITELIST="add_reloc_offset __bss_start __bss_stop copy_and_flush
 _end enter_prom memcpy memset reloc_offset __secondary_hold
-__secondary_hold_acknowledge __secondary_hold_spinloop __start
+__secondary_hold_acknowledge __secondary_hold_spinloop __start strlcat
 strcmp strcpy strlcpy strlen strncmp strstr kstrtobool logo_linux_clut224
 reloc_got2 kernstart_addr memstart_addr linux_banner _stext
 __prom_init_toc_start __prom_init_toc_end btext_setup_display TOC."
-- 
2.19.1