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kcsan: Make strict mode imply interruptible watchers 

If CONFIG_KCSAN_STRICT=y, select CONFIG_KCSAN_INTERRUPT_WATCHER as well.

With interruptible watchers, we'll also report same-CPU data races; if
we requested strict mode, we might as well show these, too.

Suggested-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Marco Elver <elver@google.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
This commit is contained in:
Marco Elver 2021-06-15 20:39:38 +02:00 committed by Paul E. McKenney
parent d8fd74d35a
commit e04938042d
1 changed files with 2 additions and 1 deletions
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lib/Kconfig.kcsan
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@ -150,7 +150,8 @@ config KCSAN_SKIP_WATCH_RANDOMIZE
KCSAN_WATCH_SKIP.
config KCSAN_INTERRUPT_WATCHER
bool "Interruptible watchers"
bool "Interruptible watchers" if !KCSAN_STRICT
default KCSAN_STRICT
help
If enabled, a task that set up a watchpoint may be interrupted while
delayed. This option will allow KCSAN to detect races between