kdb: Use KDB_REPEAT_* values as flags (04bb171e) · Commits · 戴 / test

The actual values of KDB_REPEAT_* enum values and overall logic stayed the same, but we now treat the values as flags. This makes it possible to add other flags and combine them, plus makes the code a lot simpler and shorter. But functionality-wise, there should be no changes. Signed-off-by:

Anton Vorontsov <anton.vorontsov@linaro.org> Signed-off-by:

John Stultz <john.stultz@linaro.org> Signed-off-by:

Daniel Thompson <daniel.thompson@linaro.org> Cc: Jason Wessel <jason.wessel@windriver.com> Signed-off-by:

Jason Wessel <jason.wessel@windriver.com>

include/linux/kdb.h

+2 −2

Original line number	Diff line number	Diff line
		@@ -15,8 +15,8 @@

		typedef enum {
		KDB_REPEAT_NONE = 0, /* Do not repeat this command */
		KDB_REPEAT_NO_ARGS, /* Repeat the command without arguments */
		KDB_REPEAT_WITH_ARGS, /* Repeat the command including its arguments */
		KDB_REPEAT_NO_ARGS = 0x1, /* Repeat the command w/o arguments */
		KDB_REPEAT_WITH_ARGS = 0x2, /* Repeat the command w/ its arguments */
		} kdb_cmdflags_t;

		typedef int (kdb_func_t)(int, const char *);

kernel/debug/kdb/kdb_main.c

+7 −14

Original line number	Diff line number	Diff line
		@@ -1008,20 +1008,13 @@ int kdb_parse(const char *cmdstr)
		if (result && ignore_errors && result > KDB_CMD_GO)
		result = 0;
		KDB_STATE_CLEAR(CMD);
		switch (tp->cmd_flags) {
		case KDB_REPEAT_NONE:
		argc = 0;
		if (argv[0])
		*(argv[0]) = '\0';
		break;
		case KDB_REPEAT_NO_ARGS:
		argc = 1;
		if (argv[1])
		*(argv[1]) = '\0';
		break;
		case KDB_REPEAT_WITH_ARGS:
		break;
		}

		if (tp->cmd_flags & KDB_REPEAT_WITH_ARGS)
		return result;

		argc = tp->cmd_flags & KDB_REPEAT_NO_ARGS ? 1 : 0;
		if (argv[argc])
		*(argv[argc]) = '\0';
		return result;
		}

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