__asm_dcache_all can directly return to the caller of __asm_{flush,invalidate}_dcache_all.
We do not have to waste x16 register here.
Signed-off-by: Masahiro Yamada yamada.masahiro@socionext.com ---
arch/arm/cpu/armv8/cache.S | 10 ++-------- 1 file changed, 2 insertions(+), 8 deletions(-)
diff --git a/arch/arm/cpu/armv8/cache.S b/arch/arm/cpu/armv8/cache.S index a9f4fec..1c71a2f 100644 --- a/arch/arm/cpu/armv8/cache.S +++ b/arch/arm/cpu/armv8/cache.S @@ -104,19 +104,13 @@ finished: ENDPROC(__asm_dcache_all)
ENTRY(__asm_flush_dcache_all) - mov x16, lr mov x0, #0 - bl __asm_dcache_all - mov lr, x16 - ret + b __asm_dcache_all ENDPROC(__asm_flush_dcache_all)
ENTRY(__asm_invalidate_dcache_all) - mov x16, lr mov x0, #0x1 - bl __asm_dcache_all - mov lr, x16 - ret + b __asm_dcache_all ENDPROC(__asm_invalidate_dcache_all)
/*