Bug 210221

Summary:	KASAN: turn CONFIG_KASAN_STACK into bool
Product:	Memory Management	Reporter:	Andrey Konovalov (andreyknvl)
Component:	Sanitizers	Assignee:	MM/Sanitizers virtual assignee (mm_sanitizers)
Status:	RESOLVED CODE_FIX
Severity:	normal	CC:	dvyukov, kasan-dev, walter-zh.wu
Priority:	P1
Hardware:	All
OS:	Linux
Kernel Version:	upstream	Subsystem:
Regression:	No	Bisected commit-id:

Description Andrey Konovalov 2020-11-16 13:50:19 UTC

CONFIG_KASAN_STACK config option is currently defined as an int, while it's logically a bool. This is a bit confusing and is worth fixing.

Comment 1 Dmitry Vyukov 2020-11-16 13:59:51 UTC

FWIW we could also have just 1 config instead of 2 as well (CONFIG_KASAN_STACK/CONFIG_KASAN_STACK_ENABLE).
For gcc we could do no prompt and default value y, and for clang --
prompt and default value n. I think it should do what we need.

Comment 2 Walter Wu 2021-01-07 06:22:25 UTC

Hi Dmitry/Andrey,

I already sent one patch(kasan: remove redundant config option) to fix it.
Thank you for your suggestion.

Walter

Comment 3 Dmitry Vyukov 2021-02-03 11:05:56 UTC

"kasan: remove redundant config option" is now in linux-next.