linux-kernel - [PATCH tip/core/rcu 2/2] random32: Re-enable KCSAN instrumentation

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Date:   Wed,  6 Jan 2021 09:33:51 -0800
From:   paulmck@...nel.org
To:     linux-kernel@...r.kernel.org, kasan-dev@...glegroups.com,
        kernel-team@...com, mingo@...nel.org
Cc:     elver@...gle.com, andreyknvl@...gle.com, glider@...gle.com,
        dvyukov@...gle.com, cai@....pw, boqun.feng@...il.com,
        "Paul E . McKenney" <paulmck@...nel.org>
Subject: [PATCH tip/core/rcu 2/2] random32: Re-enable KCSAN instrumentation

From: Marco Elver <elver@...gle.com>

Re-enable KCSAN instrumentation, now that KCSAN no longer relies on code
in lib/random32.c.

Signed-off-by: Marco Elver <elver@...gle.com>
Signed-off-by: Paul E. McKenney <paulmck@...nel.org>
---
 lib/Makefile | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/lib/Makefile b/lib/Makefile
index afeff05..dc09208 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -27,9 +27,6 @@ KASAN_SANITIZE_string.o := n
 CFLAGS_string.o += -fno-stack-protector
 endif
 
-# Used by KCSAN while enabled, avoid recursion.
-KCSAN_SANITIZE_random32.o := n
-
 lib-y := ctype.o string.o vsprintf.o cmdline.o \
 	 rbtree.o radix-tree.o timerqueue.o xarray.o \
 	 idr.o extable.o sha1.o irq_regs.o argv_split.o \
-- 
2.9.5