arch/Kconfig: update HAVE_RELIABLE_STACKTRACE description

save_stack_trace_tsk_reliable() is not the only function providing the
reliable stack traces anymore.  Architecture might define ARCH_STACKWALK
which provides a newer stack walking interface and has
arch_stack_walk_reliable() function.  Update the description accordingly.

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Miroslav Benes <mbenes@suse.cz>
Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
Link: http://lkml.kernel.org/r/20200120154042.9934-1-mbenes@suse.cz
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/arch/Kconfig b/arch/Kconfig
index 98de654..17fe351 100644 (file)
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -738,8 +738,9 @@ config HAVE_STACK_VALIDATION
 config HAVE_RELIABLE_STACKTRACE
        bool
        help
-         Architecture has a save_stack_trace_tsk_reliable() function which
-         only returns a stack trace if it can guarantee the trace is reliable.
+         Architecture has either save_stack_trace_tsk_reliable() or
+         arch_stack_walk_reliable() function which only returns a stack trace
+         if it can guarantee the trace is reliable.
 
 config HAVE_ARCH_HASH
        bool