Sometimes, the sys command may be misused, but it doesn't display
the expected help information, for example:
Without the patch:
crash> sys kmem
NAME
kmem - kernel memory
SYNOPSIS
kmem [-f|-F|-c|-C|-i|-v|-V|-n|-z|-o|-h] [-p | -m member[,member]]
[[-s|-S|-S=cpu[s]|-r] [slab] [-I slab[,slab]]] [-g [flags]] [[-P]
address]]
...
crash> sys abc
crash>
With the patch:
crash> sys kmem
Usage:
sys [-c [name|number]] [-t] [-i] config
Enter "help sys" for details.
crash> sys abc
Usage:
sys [-c [name|number]] [-t] [-i] config
Enter "help sys" for details.
Signed-off-by: Lianbo Jiang <[email protected]>
---
kernel.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel.c b/kernel.c
index 9c4aabffe580..1c6344735299 100644
--- a/kernel.c
+++ b/kernel.c
@@ -5476,7 +5476,7 @@ cmd_sys(void)
else if (STREQ(args[optind], "config"))
read_in_kernel_config(IKCFG_READ);
else
- cmd_usage(args[optind], COMPLETE_HELP);
+ cmd_usage(pc->curcmd, SYNOPSIS);
optind++;
} while (args[optind]);
}
--
2.20.1
--
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