linux-kernel - [RFC PATCH 1/2] lib, stackdepot: Add input prompt for STACKDEPOT option.

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Date:   Tue, 31 Aug 2021 16:25:38 +1000
From:   Imran Khan <imran.f.khan@...cle.com>
To:     cl@...ux.com, akpm@...ux-foundation.org
Cc:     linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: [RFC PATCH 1/2] lib, stackdepot: Add input prompt for STACKDEPOT option.

So far CONFIG_STACKDEPOT option was being selected by
features that need STACKDEPOT support for their operations,
for example KASAN.
Since next patch makes use of STACKDEPOT to store user tracking
information for slub debugger and since user tracking info may
or may not store stack trace for allocating and freeing contexts,
make STACKDEPOT explicitly configurable.

Signed-off-by: Imran Khan <imran.f.khan@...cle.com>
---
 lib/Kconfig | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/Kconfig b/lib/Kconfig
index 6a6ae5312fa0..7e4b54f48af7 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -665,8 +665,9 @@ config ARCH_STACKWALK
        bool

 config STACKDEPOT
-	bool
+	def_bool n
 	select STACKTRACE
+	prompt "Enable stackdepot support"

 config STACK_HASH_ORDER
 	int "stack depot hash size (12 => 4KB, 20 => 1024KB)"
-- 
2.25.1