arm64: mm: drop unused __pa(__idmap_text_start)

x5 is not used in the following map_memory. Instead,
__pa(__idmap_text_start) is stored in x3 which is used later.

Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/20210518101405.1048860-4-aisheng.dong@nxp.com
Signed-off-by: Will Deacon <will@kernel.org>

diff --git a/arch/arm64/kernel/head.S b/arch/arm64/kernel/head.S
index b70db34..d266b4c 100644 (file)
--- a/arch/arm64/kernel/head.S
+++ b/arch/arm64/kernel/head.S
@@ -354,7 +354,6 @@ SYM_FUNC_START_LOCAL(__create_page_tables)
 #endif
 1:
        ldr_l   x4, idmap_ptrs_per_pgd
-       mov     x5, x3                          // __pa(__idmap_text_start)
        adr_l   x6, __idmap_text_end            // __pa(__idmap_text_end)
 
        map_memory x0, x1, x3, x6, x7, x3, x4, x10, x11, x12, x13, x14