[PATCH v1 03/13] arm64: Downgrade flush_icache_range to invalidate

[Fuad Tabba]

Since __flush_dcache_area is called right before,
invalidate_icache_range is sufficient in this case.

No functional change intended.

Reported-by: Catalin Marinas <catalin.marinas at arm.com>
Reported-by: Will Deacon <will at kernel.org>
Link: https://lore.kernel.org/linux-arch/20200511110014.lb9PEahJ4hVOYrbwIb_qUHXyNy9KQzNFdb_I3YlzY6A@z/
Signed-off-by: Fuad Tabba <tabba at google.com>
---
 arch/arm64/kernel/machine_kexec.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/kernel/machine_kexec.c b/arch/arm64/kernel/machine_kexec.c
index 90a335c74442..001ffbfc645b 100644
--- a/arch/arm64/kernel/machine_kexec.c
+++ b/arch/arm64/kernel/machine_kexec.c
@@ -70,8 +70,9 @@ int machine_kexec_post_load(struct kimage *kimage)
 
 	/* Flush the reloc_code in preparation for its execution. */
 	__flush_dcache_area(reloc_code, arm64_relocate_new_kernel_size);
-	flush_icache_range((uintptr_t)reloc_code, (uintptr_t)reloc_code +
-			   arm64_relocate_new_kernel_size);
+	invalidate_icache_range((uintptr_t)reloc_code,
+				(uintptr_t)reloc_code +
+					arm64_relocate_new_kernel_size);
 
 	return 0;
 }
-- 
2.31.1.607.g51e8a6a459-goog