Doing a test merge against linux-next I see that in the tree git://github.com/jcmvbkbc/linux-xtensa.git#xtensa-for-next a new defconfig is added: arch/xtensa/configs/xip_kc705_defconfig That defconfig adds CONFIG_SYSCTL_SYSCALL. Is xtensa actually using this system call? So far I have not seen any other users and I am serously proposing to remove it. Eric