[PATCH -fixes v2 4/4] riscv: Fix config KASAN && DEBUG_VIRTUAL
Alexandre Ghiti
alexandre.ghiti at canonical.com
Mon Feb 21 08:12:32 PST 2022
__virt_to_phys function is called very early in the boot process (ie
kasan_early_init) so it should not be instrumented by KASAN otherwise it
bugs.
Fix this by declaring phys_addr.c as non-kasan instrumentable.
Signed-off-by: Alexandre Ghiti <alexandre.ghiti at canonical.com>
---
arch/riscv/mm/Makefile | 3 +++
1 file changed, 3 insertions(+)
diff --git a/arch/riscv/mm/Makefile b/arch/riscv/mm/Makefile
index 7ebaef10ea1b..ac7a25298a04 100644
--- a/arch/riscv/mm/Makefile
+++ b/arch/riscv/mm/Makefile
@@ -24,6 +24,9 @@ obj-$(CONFIG_KASAN) += kasan_init.o
ifdef CONFIG_KASAN
KASAN_SANITIZE_kasan_init.o := n
KASAN_SANITIZE_init.o := n
+ifdef CONFIG_DEBUG_VIRTUAL
+KASAN_SANITIZE_physaddr.o := n
+endif
endif
obj-$(CONFIG_DEBUG_VIRTUAL) += physaddr.o
--
2.32.0
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