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powerpc/kasan: Disable KCOV in KASAN code 

[ Upstream commit ccb381e1af ]

As per the generic KASAN code in mm/kasan, disable KCOV with
KCOV_INSTRUMENT := n in the makefile.

This fixes a ppc64 boot hang when KCOV and KASAN are enabled.
kasan_early_init() gets called before a PACA is initialised, but the
KCOV hook expects a valid PACA.

Suggested-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Benjamin Gray <bgray@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230710044143.146840-1-bgray@linux.ibm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Benjamin Gray 2023-07-10 14:41:43 +10:00 committed by Greg Kroah-Hartman
parent 6d06cf0f02
commit a1ceb87128
1 changed files with 1 additions and 0 deletions
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arch/powerpc/mm/kasan/Makefile
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@ -1,6 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
KASAN_SANITIZE := n
KCOV_INSTRUMENT := n
obj-$(CONFIG_PPC32) += init_32.o
obj-$(CONFIG_PPC_8xx) += 8xx.o