kasan is not working on 3.18 kernel due to patch "BACKPORT: kernel: add kcov code coverage"

[Kassey]

hi, Dmitry:
    with your change on 3.18 kernel,

     https://github.com/Elite-Kernels/HTC-10/commit/7c8e808c673b50a52e6b5db9bba54678386fa61b

    it was find that cflags for GCC with KASAN enabled is not working.
    testing is doing arm64 platfrom with below configure and gcc 5.1.1

    +CONFIG_KASAN=y
    +CONFIG_TEST_KASAN=m



    and the issue can be fixed by the change, would you please review ?

Author: Kassey <kassey1216 at gmail.com>
Date:   Wed Aug 30 15:45:58 2017 +0800

    scripts: correct cflags for kasan

    Signed-off-by: Kassey<kassey1216 at gmail.com>

diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index cea530c..0f1d004 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -125,7 +125,7 @@ endif
 #
 ifeq ($(CONFIG_KASAN),y)
 _c_flags += $(if $(patsubst n%,, \
-
$(KASAN_SANITIZE_$(basetarget).o)$(KASAN_SANITIZE)$(CONFIG_KASAN_SANITIZE_ALL)),
\
+               $(KASAN_SANITIZE_$(basetarget).o)$(KASAN_SANITIZE)y), \
                $(CFLAGS_KASAN))
 endif



-- 
Best regards
Kassey