From b0f73bc7f1793997eb48bd14e3db51c3c95e2098 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Fri, 8 Dec 2017 10:19:23 -0800 Subject: kdb: drop newline in unknown command output When an unknown command is entered, kdb prints "Unknown kdb command:" and then the unknown text, including the newline character. This causes the ending single-quote mark to be printed on the next line by itself, so just change the ending newline character to a null character (end of string) so that it won't be "printed." Signed-off-by: Randy Dunlap Cc: Daniel Thompson Cc: Jason Wessel Cc: kgdb-bugreport@lists.sourceforge.net Signed-off-by: Jason Wessel --- kernel/debug/kdb/kdb_main.c | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'kernel/debug/kdb') diff --git a/kernel/debug/kdb/kdb_main.c b/kernel/debug/kdb/kdb_main.c index ff6047d3b73f..6055231544a0 100644 --- a/kernel/debug/kdb/kdb_main.c +++ b/kernel/debug/kdb/kdb_main.c @@ -1150,6 +1150,16 @@ void kdb_set_current_task(struct task_struct *p) kdb_current_regs = NULL; } +static void drop_newline(char *buf) +{ + size_t len = strlen(buf); + + if (len == 0) + return; + if (*(buf + len - 1) == '\n') + *(buf + len - 1) = '\0'; +} + /* * kdb_local - The main code for kdb. This routine is invoked on a * specific processor, it is not global. The main kdb() routine @@ -1327,6 +1337,7 @@ do_full_getstr: cmdptr = cmd_head; diag = kdb_parse(cmdbuf); if (diag == KDB_NOTFOUND) { + drop_newline(cmdbuf); kdb_printf("Unknown kdb command: '%s'\n", cmdbuf); diag = 0; } -- cgit v1.2.3