kdb: Remove the misfeature 'KDBFLAGS'

Currently, 'KDBFLAGS' is an internal variable of kdb, it is combined by 'KDBDEBUG' and state flags. It will be shown only when 'KDBDEBUG' is set, and the user can define an environment variable named 'KDBFLAGS' too. These are puzzling indeed. After communication with Daniel, it seems that 'KDBFLAGS' is a misfeature. So let's replace 'KDBFLAGS' with 'KDBDEBUG' to just show the value we wrote into. After this modification, we can use `md4c1 kdb_flags` instead, to observe the state flags.

Wei Li committed 6 years ago

Commit c893de11 parent 1b310032 files · +5 −5Browse files

Showing the changes to include/linux (1 of 2 files). Show all

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include/linux/kdb.h+1−1

@@ -125,7 +125,7 @@ extern const char *kdb_diemsg; · 124 unmodified lines
125	125	#define KDB_FLAG_NO_I8042 (1 << 7) /* No i8042 chip is available, do
126	126	* not use keyboard */
127	127
128		−extern int kdb_flags; /* Global flags, see kdb_state for per cpu state */
	128	+extern unsigned int kdb_flags; /* Global flags, see kdb_state for per cpu state */
129	129
130	130	extern void kdb_save_flags(void);
131	131	extern void kdb_restore_flags(void);