[PATCH v2 1/2] cmd: Introduce CMD_HELP

[Michal Simek]

Add option to disable help command in size constrained systems to save some
space. There is also no need to have ifdefs around CMDLINE because all
commands bepends on it.
And also mark cmd_help dependency in test_help.py.

Signed-off-by: Michal Simek <michal.simek at amd.com>
Reviewed-by: Peter Robinson <pbrobinson at gmail.com>
---

Changes in v2:
- Remove CONFIG_CMDLINE ifdefs from code.
- Update test_help.

 cmd/Kconfig                | 6 ++++++
 cmd/Makefile               | 2 +-
 cmd/help.c                 | 6 ------
 test/py/tests/test_help.py | 1 +
 4 files changed, 8 insertions(+), 7 deletions(-)

diff --git a/cmd/Kconfig b/cmd/Kconfig
index 4eb0140c10a1..ee3fbe6a4f2b 100644
--- a/cmd/Kconfig
+++ b/cmd/Kconfig
@@ -189,6 +189,12 @@ config CMD_FWU_METADATA
 	help
 	  Command to read the metadata and dump it's contents
 
+config CMD_HELP
+	bool "help"
+	default y
+	help
+	  Command to show help information about other commands.
+
 config CMD_HISTORY
 	bool "history"
 	depends on CMDLINE_EDITING
diff --git a/cmd/Makefile b/cmd/Makefile
index 80cf70b7fe8c..718eff4ed197 100644
--- a/cmd/Makefile
+++ b/cmd/Makefile
@@ -7,7 +7,7 @@ ifndef CONFIG_XPL_BUILD
 # core command
 obj-y += boot.o
 obj-$(CONFIG_CMD_BOOTM) += bootm.o
-obj-y += help.o
+obj-$(CONFIG_CMD_HELP) += help.o
 obj-y += panic.o
 obj-y += version.o
 
diff --git a/cmd/help.c b/cmd/help.c
index 56579e28d31d..1be83ba607d4 100644
--- a/cmd/help.c
+++ b/cmd/help.c
@@ -9,13 +9,9 @@
 static int do_help(struct cmd_tbl *cmdtp, int flag, int argc,
 		   char *const argv[])
 {
-#ifdef CONFIG_CMDLINE
 	struct cmd_tbl *start = ll_entry_start(struct cmd_tbl, cmd);
 	const int len = ll_entry_count(struct cmd_tbl, cmd);
 	return _do_help(start, len, cmdtp, flag, argc, argv);
-#else
-	return 0;
-#endif
 }
 
 U_BOOT_CMD(
@@ -27,7 +23,6 @@ U_BOOT_CMD(
 	"	- print detailed usage of 'command'"
 );
 
-#ifdef CONFIG_CMDLINE
 /*
  * This does not use the U_BOOT_CMD macro as ? can't be used in symbol names
  * nor can we rely on the CONFIG_SYS_LONGHELP helper macro
@@ -39,4 +34,3 @@ ll_entry_declare(struct cmd_tbl, question_mark, cmd) = {
 	""
 #endif /* CONFIG_SYS_LONGHELP */
 };
-#endif
diff --git a/test/py/tests/test_help.py b/test/py/tests/test_help.py
index 12cb36b7b985..afb57201ba38 100644
--- a/test/py/tests/test_help.py
+++ b/test/py/tests/test_help.py
@@ -4,6 +4,7 @@
 
 import pytest
 
+ at pytest.mark.buildconfigspec('cmd_help')
 def test_help(ubman):
     """Test that the "help" command can be executed."""
 
-- 
2.43.0

base-commit: 40ef75b0796307f718a4b424b5e52e79b36ae2f4