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| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2019-03-04 16:04:44 +0200 |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2019-04-21 10:26:51 +0200 |
| commit | cbc1081da00923eed4c73bf28b51f9a01ea5d043 (patch) | |
| tree | b99cf202ca7cd6c5e9a2c578876347410da10ff2 /cmd | |
| parent | 17982a2855b920a855350ea920a965cfdd1863c0 (diff) | |
| download | u-boot-cbc1081da00923eed4c73bf28b51f9a01ea5d043.tar.gz | |
dfu: Avoid declaring unused variables and absent parameters
The compiler is not happy when neither USB nor TFTP transport for DFU defined:
cmd/dfu.c: In function ‘do_dfu’:
cmd/dfu.c:31:8: warning: unused variable ‘devstring’ [-Wunused-variable]
char *devstring = argv[3];
^~~~~~~~~
cmd/dfu.c:30:8: warning: unused variable ‘interface’ [-Wunused-variable]
char *interface = argv[2];
^~~~~~~~~
Surround those variables by #ifdef expression.
More serious, that comes under same circumstances, is a compilation error due
to absence of macro parameter:
In file included from include/image.h:45,
from include/common.h:35,
from cmd/dfu.c:13:
include/command.h:207:24: error: expected expression before ‘,’ token
# define _CMD_HELP(x) x,
^
include/command.h:286:18: note: in expansion of macro ‘_CMD_HELP’
_cmd, _usage, _CMD_HELP(_help) _CMD_COMPLETE(_comp) }
^~~~~~~~~
include/command.h:290:3: note: in expansion of macro ‘U_BOOT_CMD_MKENT_COMPLETE’
U_BOOT_CMD_MKENT_COMPLETE(_name, _maxargs, _rep, _cmd, \
^~~~~~~~~~~~~~~~~~~~~~~~~
include/command.h:332:2: note: in expansion of macro ‘U_BOOT_CMD_COMPLETE’
U_BOOT_CMD_COMPLETE(_name, _maxargs, _rep, _cmd, _usage, _help, NULL)
^~~~~~~~~~~~~~~~~~~
cmd/dfu.c:70:1: note: in expansion of macro ‘U_BOOT_CMD’
U_BOOT_CMD(dfu, CONFIG_SYS_MAXARGS, 1, do_dfu,
^~~~~~~~~~
make[1]: *** [scripts/Makefile.build:279: cmd/dfu.o] Error 1
make: *** [Makefile:1518: cmd] Error 2
Put empty string unconditionally to have macro parameter present.
Fixes: 0f44d33536a5 ("dfu: Fix up the Kconfig mess")
Cc: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Lukasz Majewski <lukma@denx.de>
Diffstat (limited to 'cmd')
| -rw-r--r-- | cmd/dfu.c | 3 |
1 files changed, 3 insertions, 0 deletions
@@ -27,8 +27,10 @@ static int do_dfu(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) #ifdef CONFIG_DFU_OVER_USB char *usb_controller = argv[1]; #endif +#if defined(CONFIG_DFU_OVER_USB) || defined(CONFIG_DFU_OVER_TFTP) char *interface = argv[2]; char *devstring = argv[3]; +#endif int ret = 0; #ifdef CONFIG_DFU_OVER_TFTP @@ -63,6 +65,7 @@ done: U_BOOT_CMD(dfu, CONFIG_SYS_MAXARGS, 1, do_dfu, "Device Firmware Upgrade", + "" #ifdef CONFIG_DFU_OVER_USB "<USB_controller> <interface> <dev> [list]\n" " - device firmware upgrade via <USB_controller>\n" |