SPECTRE_V2_USER_CMD_PRCTL_IBPB 654 arch/x86/kernel/cpu/bugs.c { "prctl,ibpb", SPECTRE_V2_USER_CMD_PRCTL_IBPB, false }, SPECTRE_V2_USER_CMD_PRCTL_IBPB 719 arch/x86/kernel/cpu/bugs.c case SPECTRE_V2_USER_CMD_PRCTL_IBPB: SPECTRE_V2_USER_CMD_PRCTL_IBPB 738 arch/x86/kernel/cpu/bugs.c case SPECTRE_V2_USER_CMD_PRCTL_IBPB: