linux-kernel - [PATCH v6 20/40] kasan: don't duplicate config dependencies

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Date:   Thu, 29 Oct 2020 20:25:41 +0100
From:   Andrey Konovalov <andreyknvl@...gle.com>
To:     Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>
Cc:     Vincenzo Frascino <vincenzo.frascino@....com>,
        kasan-dev@...glegroups.com, Dmitry Vyukov <dvyukov@...gle.com>,
        Andrey Ryabinin <aryabinin@...tuozzo.com>,
        Alexander Potapenko <glider@...gle.com>,
        Marco Elver <elver@...gle.com>,
        Evgenii Stepanov <eugenis@...gle.com>,
        Elena Petrova <lenaptr@...gle.com>,
        Branislav Rankov <Branislav.Rankov@....com>,
        Kevin Brodsky <kevin.brodsky@....com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        linux-arm-kernel@...ts.infradead.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org,
        Andrey Konovalov <andreyknvl@...gle.com>
Subject: [PATCH v6 20/40] kasan: don't duplicate config dependencies

Both KASAN_GENERIC and KASAN_SW_TAGS have common dependencies, move
those to KASAN.

Signed-off-by: Andrey Konovalov <andreyknvl@...gle.com>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@....com>
Reviewed-by: Marco Elver <elver@...gle.com>
---
Change-Id: I77e475802e8f1750b9154fe4a6e6da4456054fcd
---
 lib/Kconfig.kasan | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/lib/Kconfig.kasan b/lib/Kconfig.kasan
index 8f0742a0f23e..ec59a0e26d09 100644
--- a/lib/Kconfig.kasan
+++ b/lib/Kconfig.kasan
@@ -24,6 +24,8 @@ menuconfig KASAN
 		   (HAVE_ARCH_KASAN_SW_TAGS && CC_HAS_KASAN_SW_TAGS)
 	depends on (SLUB && SYSFS) || (SLAB && !DEBUG_SLAB)
 	depends on CC_HAS_WORKING_NOSANITIZE_ADDRESS
+	select CONSTRUCTORS
+	select STACKDEPOT
 	help
 	  Enables KASAN (KernelAddressSANitizer) - runtime memory debugger,
 	  designed to find out-of-bounds accesses and use-after-free bugs.
@@ -46,10 +48,7 @@ choice
 config KASAN_GENERIC
 	bool "Generic mode"
 	depends on HAVE_ARCH_KASAN && CC_HAS_KASAN_GENERIC
-	depends on (SLUB && SYSFS) || (SLAB && !DEBUG_SLAB)
 	select SLUB_DEBUG if SLUB
-	select CONSTRUCTORS
-	select STACKDEPOT
 	help
 	  Enables generic KASAN mode.
 
@@ -70,10 +69,7 @@ config KASAN_GENERIC
 config KASAN_SW_TAGS
 	bool "Software tag-based mode"
 	depends on HAVE_ARCH_KASAN_SW_TAGS && CC_HAS_KASAN_SW_TAGS
-	depends on (SLUB && SYSFS) || (SLAB && !DEBUG_SLAB)
 	select SLUB_DEBUG if SLUB
-	select CONSTRUCTORS
-	select STACKDEPOT
 	help
 	  Enables software tag-based KASAN mode.
 
-- 
2.29.1.341.ge80a0c044ae-goog