diff options
| author | Dr. David Alan Gilbert <linux@treblig.org> | 2025-01-12 01:20:49 +0000 |
|---|---|---|
| committer | Daniel Thompson (RISCstar) <danielt@kernel.org> | 2025-01-25 08:22:26 +0000 |
| commit | 6beaa75cd24d660e7913c60aff702ec809ff9b28 (patch) | |
| tree | a54d58e9561a0d1936e9e6bae7f62f37a87dbda5 | |
| parent | 36975ec3a2c15c20f0df312633f4272da649d8fc (diff) | |
kdb: Remove unused flags stack
kdb_restore_flags() and kdb_save_flags() were added in 2010 by
commit 5d5314d6795f ("kdb: core for kgdb back end (1 of 2)")
but have remained unused.
Remove them, and their associated storage.
Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/20250112012049.319515-1-linux@treblig.org
Signed-off-by: Daniel Thompson (RISCstar) <danielt@kernel.org>
| -rw-r--r-- | include/linux/kdb.h | 3 | ||||
| -rw-r--r-- | kernel/debug/kdb/kdb_support.c | 18 |
2 files changed, 0 insertions, 21 deletions
diff --git a/include/linux/kdb.h b/include/linux/kdb.h index f6c2ddb16b95..905a2e2f45f6 100644 --- a/include/linux/kdb.h +++ b/include/linux/kdb.h @@ -140,9 +140,6 @@ extern const char *kdb_diemsg; extern unsigned int kdb_flags; /* Global flags, see kdb_state for per cpu state */ -extern void kdb_save_flags(void); -extern void kdb_restore_flags(void); - #define KDB_FLAG(flag) (kdb_flags & KDB_FLAG_##flag) #define KDB_FLAG_SET(flag) ((void)(kdb_flags |= KDB_FLAG_##flag)) #define KDB_FLAG_CLEAR(flag) ((void)(kdb_flags &= ~KDB_FLAG_##flag)) diff --git a/kernel/debug/kdb/kdb_support.c b/kernel/debug/kdb/kdb_support.c index 1ef831cacbc2..05b137e7dcb9 100644 --- a/kernel/debug/kdb/kdb_support.c +++ b/kernel/debug/kdb/kdb_support.c @@ -536,21 +536,3 @@ bool kdb_task_state(const struct task_struct *p, const char *mask) return strchr(mask, state); } - -/* Maintain a small stack of kdb_flags to allow recursion without disturbing - * the global kdb state. - */ - -static int kdb_flags_stack[4], kdb_flags_index; - -void kdb_save_flags(void) -{ - BUG_ON(kdb_flags_index >= ARRAY_SIZE(kdb_flags_stack)); - kdb_flags_stack[kdb_flags_index++] = kdb_flags; -} - -void kdb_restore_flags(void) -{ - BUG_ON(kdb_flags_index <= 0); - kdb_flags = kdb_flags_stack[--kdb_flags_index]; -} |