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powerpc/kasan: Fix boot failure with RELOCATABLE && FSL_BOOKE 

When enabling CONFIG_RELOCATABLE and CONFIG_KASAN on FSL_BOOKE,
the kernel doesn't boot.

relocate_init() requires KASAN early shadow area to be set up because
it needs access to the device tree through generic functions.

Call kasan_early_init() before calling relocate_init()

Reported-by: Lexi Shao <shaolexi@huawei.com>
Fixes: 2edb16efc8 ("powerpc/32: Add KASAN support")
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/b58426f1664a4b344ff696d18cacf3b3e8962111.1575036985.git.christophe.leroy@c-s.fr
This commit is contained in:
Christophe Leroy 2019-11-29 14:26:41 +00:00 committed by Michael Ellerman
parent 63de37476e
commit 71eb40fc53
1 changed files with 3 additions and 3 deletions
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6
arch/powerpc/kernel/head_fsl_booke.S
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@ -240,6 +240,9 @@ set_ivor:
bl early_init
#ifdef CONFIG_KASAN
bl kasan_early_init
#endif
#ifdef CONFIG_RELOCATABLE
mr r3,r30
mr r4,r31
@ -266,9 +269,6 @@ set_ivor:
/*
* Decide what sort of machine this is and initialize the MMU.
*/
#ifdef CONFIG_KASAN
bl kasan_early_init
#endif
mr r3,r30
mr r4,r31
bl machine_init