4.4-stable review patch. If anyone has any objections, please let me know.
------------------ From: Vineet Gupta <[email protected]> commit b31ac42697bef4a3aa5d0aa42375a55657f57174 upstream. Signed-off-by: Vineet Gupta <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- arch/arc/Kconfig | 2 +- arch/arc/kernel/setup.c | 5 ----- 2 files changed, 1 insertion(+), 6 deletions(-) --- a/arch/arc/Kconfig +++ b/arch/arc/Kconfig @@ -387,7 +387,7 @@ config ARC_HAS_LLSC config ARC_STAR_9000923308 bool "Workaround for llock/scond livelock" - default y + default n depends on ISA_ARCV2 && SMP && ARC_HAS_LLSC config ARC_HAS_SWAPE --- a/arch/arc/kernel/setup.c +++ b/arch/arc/kernel/setup.c @@ -332,11 +332,6 @@ static void arc_chk_core_config(void) pr_warn("CONFIG_ARC_FPU_SAVE_RESTORE needed for working apps\n"); else if (!cpu->extn.fpu_dp && fpu_enabled) panic("FPU non-existent, disable CONFIG_ARC_FPU_SAVE_RESTORE\n"); - - if (is_isa_arcv2() && IS_ENABLED(CONFIG_SMP) && cpu->isa.atomic && - IS_ENABLED(CONFIG_ARC_HAS_LLSC) && - !IS_ENABLED(CONFIG_ARC_STAR_9000923308)) - panic("llock/scond livelock workaround missing\n"); } /*
