diff --git a/src/unix/notbsd/linux/mips/mips32.rs b/src/unix/notbsd/linux/mips/mips32.rs
index 991161395444ab7b2aaccdfe00eeee748d1286fd..d9d55891309d78438bf4dec94d8ca20113c1fb17 100644
--- a/src/unix/notbsd/linux/mips/mips32.rs
+++ b/src/unix/notbsd/linux/mips/mips32.rs
@@ -353,7 +353,6 @@ pub const SYS_mknod: ::c_long = 4000 +  14;
 pub const SYS_chmod: ::c_long = 4000 +  15;
 pub const SYS_lchown: ::c_long = 4000 +  16;
 pub const SYS_break: ::c_long = 4000 +  17;
-pub const SYS_unused18: ::c_long = 4000 +  18;
 pub const SYS_lseek: ::c_long = 4000 +  19;
 pub const SYS_getpid: ::c_long = 4000 +  20;
 pub const SYS_mount: ::c_long = 4000 +  21;
@@ -363,7 +362,6 @@ pub const SYS_getuid: ::c_long = 4000 +  24;
 pub const SYS_stime: ::c_long = 4000 +  25;
 pub const SYS_ptrace: ::c_long = 4000 +  26;
 pub const SYS_alarm: ::c_long = 4000 +  27;
-pub const SYS_unused28: ::c_long = 4000 +  28;
 pub const SYS_pause: ::c_long = 4000 +  29;
 pub const SYS_utime: ::c_long = 4000 +  30;
 pub const SYS_stty: ::c_long = 4000 +  31;
@@ -394,7 +392,6 @@ pub const SYS_fcntl: ::c_long = 4000 +  55;
 pub const SYS_mpx: ::c_long = 4000 +  56;
 pub const SYS_setpgid: ::c_long = 4000 +  57;
 pub const SYS_ulimit: ::c_long = 4000 +  58;
-pub const SYS_unused59: ::c_long = 4000 +  59;
 pub const SYS_umask: ::c_long = 4000 +  60;
 pub const SYS_chroot: ::c_long = 4000 +  61;
 pub const SYS_ustat: ::c_long = 4000 +  62;
@@ -417,9 +414,7 @@ pub const SYS_gettimeofday: ::c_long = 4000 +  78;
 pub const SYS_settimeofday: ::c_long = 4000 +  79;
 pub const SYS_getgroups: ::c_long = 4000 +  80;
 pub const SYS_setgroups: ::c_long = 4000 +  81;
-pub const SYS_reserved82: ::c_long = 4000 +  82;
 pub const SYS_symlink: ::c_long = 4000 +  83;
-pub const SYS_unused84: ::c_long = 4000 +  84;
 pub const SYS_readlink: ::c_long = 4000 +  85;
 pub const SYS_uselib: ::c_long = 4000 +  86;
 pub const SYS_swapon: ::c_long = 4000 +  87;
@@ -444,7 +439,6 @@ pub const SYS_getitimer: ::c_long = 4000 + 105;
 pub const SYS_stat: ::c_long = 4000 + 106;
 pub const SYS_lstat: ::c_long = 4000 + 107;
 pub const SYS_fstat: ::c_long = 4000 + 108;
-pub const SYS_unused109: ::c_long = 4000 + 109;
 pub const SYS_iopl: ::c_long = 4000 + 110;
 pub const SYS_vhangup: ::c_long = 4000 + 111;
 pub const SYS_idle: ::c_long = 4000 + 112;
@@ -485,7 +479,6 @@ pub const SYS_writev: ::c_long = 4000 + 146;
 pub const SYS_cacheflush: ::c_long = 4000 + 147;
 pub const SYS_cachectl: ::c_long = 4000 + 148;
 pub const SYS_sysmips: ::c_long = 4000 + 149;
-pub const SYS_unused150: ::c_long = 4000 + 150;
 pub const SYS_getsid: ::c_long = 4000 + 151;
 pub const SYS_fdatasync: ::c_long = 4000 + 152;
 pub const SYS__sysctl: ::c_long = 4000 + 153;
@@ -556,7 +549,6 @@ pub const SYS_mincore: ::c_long = 4000 + 217;
 pub const SYS_madvise: ::c_long = 4000 + 218;
 pub const SYS_getdents64: ::c_long = 4000 + 219;
 pub const SYS_fcntl64: ::c_long = 4000 + 220;
-pub const SYS_reserved221: ::c_long = 4000 + 221;
 pub const SYS_gettid: ::c_long = 4000 + 222;
 pub const SYS_readahead: ::c_long = 4000 + 223;
 pub const SYS_setxattr: ::c_long = 4000 + 224;
diff --git a/src/unix/notbsd/linux/mips/mips64.rs b/src/unix/notbsd/linux/mips/mips64.rs
index c4247c976c9bd74684f62725e5414c3dea640c5f..f480e50a848efeeec79c338b8182bce3b5401bc1 100644
--- a/src/unix/notbsd/linux/mips/mips64.rs
+++ b/src/unix/notbsd/linux/mips/mips64.rs
@@ -496,7 +496,6 @@ pub const SYS_nfsservctl: ::c_long = 5000 + 173;
 pub const SYS_getpmsg: ::c_long = 5000 + 174;
 pub const SYS_putpmsg: ::c_long = 5000 + 175;
 pub const SYS_afs_syscall: ::c_long = 5000 + 176;
-pub const SYS_reserved177: ::c_long = 5000 + 177;
 pub const SYS_gettid: ::c_long = 5000 + 178;
 pub const SYS_readahead: ::c_long = 5000 + 179;
 pub const SYS_setxattr: ::c_long = 5000 + 180;
@@ -512,7 +511,6 @@ pub const SYS_removexattr: ::c_long = 5000 + 189;
 pub const SYS_lremovexattr: ::c_long = 5000 + 190;
 pub const SYS_fremovexattr: ::c_long = 5000 + 191;
 pub const SYS_tkill: ::c_long = 5000 + 192;
-pub const SYS_reserved193: ::c_long = 5000 + 193;
 pub const SYS_futex: ::c_long = 5000 + 194;
 pub const SYS_sched_setaffinity: ::c_long = 5000 + 195;
 pub const SYS_sched_getaffinity: ::c_long = 5000 + 196;
diff --git a/src/unix/notbsd/linux/musl/b32/mips.rs b/src/unix/notbsd/linux/musl/b32/mips.rs
index b0694d1ea823054c52f471c33e60e51af525ce77..37430af5f90d7f2914565863b896e509cfd77355 100644
--- a/src/unix/notbsd/linux/musl/b32/mips.rs
+++ b/src/unix/notbsd/linux/musl/b32/mips.rs
@@ -514,7 +514,6 @@ pub const SYS_mknod: ::c_long = 4000 +  14;
 pub const SYS_chmod: ::c_long = 4000 +  15;
 pub const SYS_lchown: ::c_long = 4000 +  16;
 pub const SYS_break: ::c_long = 4000 +  17;
-pub const SYS_unused18: ::c_long = 4000 +  18;
 pub const SYS_lseek: ::c_long = 4000 +  19;
 pub const SYS_getpid: ::c_long = 4000 +  20;
 pub const SYS_mount: ::c_long = 4000 +  21;
@@ -524,7 +523,6 @@ pub const SYS_getuid: ::c_long = 4000 +  24;
 pub const SYS_stime: ::c_long = 4000 +  25;
 pub const SYS_ptrace: ::c_long = 4000 +  26;
 pub const SYS_alarm: ::c_long = 4000 +  27;
-pub const SYS_unused28: ::c_long = 4000 +  28;
 pub const SYS_pause: ::c_long = 4000 +  29;
 pub const SYS_utime: ::c_long = 4000 +  30;
 pub const SYS_stty: ::c_long = 4000 +  31;
@@ -555,7 +553,6 @@ pub const SYS_fcntl: ::c_long = 4000 +  55;
 pub const SYS_mpx: ::c_long = 4000 +  56;
 pub const SYS_setpgid: ::c_long = 4000 +  57;
 pub const SYS_ulimit: ::c_long = 4000 +  58;
-pub const SYS_unused59: ::c_long = 4000 +  59;
 pub const SYS_umask: ::c_long = 4000 +  60;
 pub const SYS_chroot: ::c_long = 4000 +  61;
 pub const SYS_ustat: ::c_long = 4000 +  62;
@@ -578,9 +575,7 @@ pub const SYS_gettimeofday: ::c_long = 4000 +  78;
 pub const SYS_settimeofday: ::c_long = 4000 +  79;
 pub const SYS_getgroups: ::c_long = 4000 +  80;
 pub const SYS_setgroups: ::c_long = 4000 +  81;
-pub const SYS_reserved82: ::c_long = 4000 +  82;
 pub const SYS_symlink: ::c_long = 4000 +  83;
-pub const SYS_unused84: ::c_long = 4000 +  84;
 pub const SYS_readlink: ::c_long = 4000 +  85;
 pub const SYS_uselib: ::c_long = 4000 +  86;
 pub const SYS_swapon: ::c_long = 4000 +  87;
@@ -605,7 +600,6 @@ pub const SYS_getitimer: ::c_long = 4000 + 105;
 pub const SYS_stat: ::c_long = 4000 + 106;
 pub const SYS_lstat: ::c_long = 4000 + 107;
 pub const SYS_fstat: ::c_long = 4000 + 108;
-pub const SYS_unused109: ::c_long = 4000 + 109;
 pub const SYS_iopl: ::c_long = 4000 + 110;
 pub const SYS_vhangup: ::c_long = 4000 + 111;
 pub const SYS_idle: ::c_long = 4000 + 112;
@@ -645,7 +639,6 @@ pub const SYS_writev: ::c_long = 4000 + 146;
 pub const SYS_cacheflush: ::c_long = 4000 + 147;
 pub const SYS_cachectl: ::c_long = 4000 + 148;
 pub const SYS_sysmips: ::c_long = 4000 + 149;
-pub const SYS_unused150: ::c_long = 4000 + 150;
 pub const SYS_getsid: ::c_long = 4000 + 151;
 pub const SYS_fdatasync: ::c_long = 4000 + 152;
 pub const SYS__sysctl: ::c_long = 4000 + 153;
@@ -714,7 +707,6 @@ pub const SYS_mincore: ::c_long = 4000 + 217;
 pub const SYS_madvise: ::c_long = 4000 + 218;
 pub const SYS_getdents64: ::c_long = 4000 + 219;
 pub const SYS_fcntl64: ::c_long = 4000 + 220;
-pub const SYS_reserved221: ::c_long = 4000 + 221;
 pub const SYS_gettid: ::c_long = 4000 + 222;
 pub const SYS_readahead: ::c_long = 4000 + 223;
 pub const SYS_setxattr: ::c_long = 4000 + 224;
diff --git a/src/unix/uclibc/mips/mips32/mod.rs b/src/unix/uclibc/mips/mips32/mod.rs
index 23b385424487e7932f843f556fd506844e168f19..410ab70c440a1e278ff81070cbba7740535e5d00 100644
--- a/src/unix/uclibc/mips/mips32/mod.rs
+++ b/src/unix/uclibc/mips/mips32/mod.rs
@@ -247,7 +247,6 @@ pub const SYS_mknod: ::c_long = 4000 +  14;
 pub const SYS_chmod: ::c_long = 4000 +  15;
 pub const SYS_lchown: ::c_long = 4000 +  16;
 pub const SYS_break: ::c_long = 4000 +  17;
-pub const SYS_unused18: ::c_long = 4000 +  18;
 pub const SYS_lseek: ::c_long = 4000 +  19;
 pub const SYS_getpid: ::c_long = 4000 +  20;
 pub const SYS_mount: ::c_long = 4000 +  21;
@@ -257,7 +256,6 @@ pub const SYS_getuid: ::c_long = 4000 +  24;
 pub const SYS_stime: ::c_long = 4000 +  25;
 pub const SYS_ptrace: ::c_long = 4000 +  26;
 pub const SYS_alarm: ::c_long = 4000 +  27;
-pub const SYS_unused28: ::c_long = 4000 +  28;
 pub const SYS_pause: ::c_long = 4000 +  29;
 pub const SYS_utime: ::c_long = 4000 +  30;
 pub const SYS_stty: ::c_long = 4000 +  31;
@@ -288,7 +286,6 @@ pub const SYS_fcntl: ::c_long = 4000 +  55;
 pub const SYS_mpx: ::c_long = 4000 +  56;
 pub const SYS_setpgid: ::c_long = 4000 +  57;
 pub const SYS_ulimit: ::c_long = 4000 +  58;
-pub const SYS_unused59: ::c_long = 4000 +  59;
 pub const SYS_umask: ::c_long = 4000 +  60;
 pub const SYS_chroot: ::c_long = 4000 +  61;
 pub const SYS_ustat: ::c_long = 4000 +  62;
@@ -311,9 +308,7 @@ pub const SYS_gettimeofday: ::c_long = 4000 +  78;
 pub const SYS_settimeofday: ::c_long = 4000 +  79;
 pub const SYS_getgroups: ::c_long = 4000 +  80;
 pub const SYS_setgroups: ::c_long = 4000 +  81;
-pub const SYS_reserved82: ::c_long = 4000 +  82;
 pub const SYS_symlink: ::c_long = 4000 +  83;
-pub const SYS_unused84: ::c_long = 4000 +  84;
 pub const SYS_readlink: ::c_long = 4000 +  85;
 pub const SYS_uselib: ::c_long = 4000 +  86;
 pub const SYS_swapon: ::c_long = 4000 +  87;
@@ -338,7 +333,6 @@ pub const SYS_getitimer: ::c_long = 4000 + 105;
 pub const SYS_stat: ::c_long = 4000 + 106;
 pub const SYS_lstat: ::c_long = 4000 + 107;
 pub const SYS_fstat: ::c_long = 4000 + 108;
-pub const SYS_unused109: ::c_long = 4000 + 109;
 pub const SYS_iopl: ::c_long = 4000 + 110;
 pub const SYS_vhangup: ::c_long = 4000 + 111;
 pub const SYS_idle: ::c_long = 4000 + 112;
@@ -379,7 +373,6 @@ pub const SYS_writev: ::c_long = 4000 + 146;
 pub const SYS_cacheflush: ::c_long = 4000 + 147;
 pub const SYS_cachectl: ::c_long = 4000 + 148;
 pub const SYS_sysmips: ::c_long = 4000 + 149;
-pub const SYS_unused150: ::c_long = 4000 + 150;
 pub const SYS_getsid: ::c_long = 4000 + 151;
 pub const SYS_fdatasync: ::c_long = 4000 + 152;
 pub const SYS__sysctl: ::c_long = 4000 + 153;
@@ -450,7 +443,6 @@ pub const SYS_mincore: ::c_long = 4000 + 217;
 pub const SYS_madvise: ::c_long = 4000 + 218;
 pub const SYS_getdents64: ::c_long = 4000 + 219;
 pub const SYS_fcntl64: ::c_long = 4000 + 220;
-pub const SYS_reserved221: ::c_long = 4000 + 221;
 pub const SYS_gettid: ::c_long = 4000 + 222;
 pub const SYS_readahead: ::c_long = 4000 + 223;
 pub const SYS_setxattr: ::c_long = 4000 + 224;