Hi,

On Wed, Jun 7, 2023 at 8:25 AM Petr Mladek [off-list ref] wrote:

The configuration variable HAVE_NMI_WATCHDOG has a generic name but
it is selected only for SPARC64.

It should _not_ be used in general because it is not integrated with
the other hardlockup detectors. Namely, it does not support the hardlockup
specific command line parameters and systcl interface. Instead, it is
enabled/disabled together with the softlockup detector by the global
"watchdog" sysctl.

Rename it to HAVE_HARDLOCKUP_WATCHDOG_SPARC64 to make the special
behavior more clear.

Also the variable is set only on sparc64. Move the definition
from arch/Kconfig to arch/sparc/Kconfig.debug.

Signed-off-by: Petr Mladek <pmladek@suse.com>
---
 arch/Kconfig             | 12 ------------
 arch/sparc/Kconfig       |  2 +-
 arch/sparc/Kconfig.debug | 12 ++++++++++++
 include/linux/nmi.h      |  4 ++--
 kernel/watchdog.c        |  2 +-
 lib/Kconfig.debug        |  5 +----
 6 files changed, 17 insertions(+), 20 deletions(-)

Reviewed-by: Douglas Anderson <dianders@chromium.org>