kernel/arch/m68k/kernel/entry.S
.. .. @@ -167,9 +167,12 @@ 167 167 jbsr syscall_trace 168 168 RESTORE_SWITCH_STACK 169 169 addql #4,%sp 170 + addql #1,%d0 | optimization for cmpil #-1,%d0171 + jeq ret_from_syscall170 172 movel %sp@(PT_OFF_ORIG_D0),%d0 171 173 cmpl #NR_syscalls,%d0 172 174 jcs syscall 175 + jra ret_from_syscall173 176 badsys: 174 177 movel #-ENOSYS,%sp@(PT_OFF_D0) 175 178 jra ret_from_syscall