diff --git a/arch/sparc/kernel/systbls.S b/arch/sparc/kernel/systbls.S
index fbbec5e761c68957c27a442374716df3404bf634..db8faa75f94dd318515ad2bcb86b59bf5df5e942 100644
--- a/arch/sparc/kernel/systbls.S
+++ b/arch/sparc/kernel/systbls.S
@@ -75,7 +75,7 @@ sys_call_table:
 /*265*/	.long sys_timer_delete, sys_timer_create, sys_nis_syscall, sys_io_setup, sys_io_destroy
 /*270*/	.long sys_io_submit, sys_io_cancel, sys_io_getevents, sys_mq_open, sys_mq_unlink
 /*275*/	.long sys_mq_timedsend, sys_mq_timedreceive, sys_mq_notify, sys_mq_getsetattr, sys_waitid
-/*280*/	.long sys_ni_syscall, sys_add_key, sys_request_key, sys_keyctl, sys_openat
+/*280*/	.long sys_tee, sys_add_key, sys_request_key, sys_keyctl, sys_openat
 /*285*/	.long sys_mkdirat, sys_mknodat, sys_fchownat, sys_futimesat, sys_fstatat64
 /*290*/	.long sys_unlinkat, sys_renameat, sys_linkat, sys_symlinkat, sys_readlinkat
 /*295*/	.long sys_fchmodat, sys_faccessat, sys_pselect6, sys_ppoll, sys_unshare
diff --git a/arch/sparc64/kernel/sys32.S b/arch/sparc64/kernel/sys32.S
index 86dd5cb81e09fc9bfa08cce1c90ff6ffe5c5b026..f9b75760163c4b9a95fc55806d7ef4da006d0c36 100644
--- a/arch/sparc64/kernel/sys32.S
+++ b/arch/sparc64/kernel/sys32.S
@@ -138,6 +138,7 @@ SIGN2(sys32_ioprio_get, sys_ioprio_get, %o0, %o1)
 SIGN3(sys32_ioprio_set, sys_ioprio_set, %o0, %o1, %o2)
 SIGN2(sys32_splice, sys_splice, %o0, %o1)
 SIGN2(sys32_sync_file_range, compat_sync_file_range, %o0, %o5)
+SIGN2(sys32_tee, sys_tee, %o0, %o1)
 
 	.globl		sys32_mmap2
 sys32_mmap2:
diff --git a/arch/sparc64/kernel/systbls.S b/arch/sparc64/kernel/systbls.S
index 857b82c82875bf4154a424b41ea9607a0f910e64..62672cd92eca6f216d2fa7a611f68fa9d44ab308 100644
--- a/arch/sparc64/kernel/systbls.S
+++ b/arch/sparc64/kernel/systbls.S
@@ -76,7 +76,7 @@ sys_call_table32:
 	.word sys_timer_delete, compat_sys_timer_create, sys_ni_syscall, compat_sys_io_setup, sys_io_destroy
 /*270*/	.word sys32_io_submit, sys_io_cancel, compat_sys_io_getevents, sys32_mq_open, sys_mq_unlink
 	.word compat_sys_mq_timedsend, compat_sys_mq_timedreceive, compat_sys_mq_notify, compat_sys_mq_getsetattr, compat_sys_waitid
-/*280*/	.word sys_ni_syscall, sys_add_key, sys_request_key, sys_keyctl, compat_sys_openat
+/*280*/	.word sys32_tee, sys_add_key, sys_request_key, sys_keyctl, compat_sys_openat
 	.word sys_mkdirat, sys_mknodat, sys_fchownat, compat_sys_futimesat, compat_sys_fstatat64
 /*285*/	.word sys_unlinkat, sys_renameat, sys_linkat, sys_symlinkat, sys_readlinkat
 	.word sys_fchmodat, sys_faccessat, compat_sys_pselect6, compat_sys_ppoll, sys_unshare
@@ -145,7 +145,7 @@ sys_call_table:
 	.word sys_timer_delete, sys_timer_create, sys_ni_syscall, sys_io_setup, sys_io_destroy
 /*270*/	.word sys_io_submit, sys_io_cancel, sys_io_getevents, sys_mq_open, sys_mq_unlink
 	.word sys_mq_timedsend, sys_mq_timedreceive, sys_mq_notify, sys_mq_getsetattr, sys_waitid
-/*280*/	.word sys_nis_syscall, sys_add_key, sys_request_key, sys_keyctl, sys_openat
+/*280*/	.word sys_tee, sys_add_key, sys_request_key, sys_keyctl, sys_openat
 	.word sys_mkdirat, sys_mknodat, sys_fchownat, sys_futimesat, sys_fstatat64
 /*285*/	.word sys_unlinkat, sys_renameat, sys_linkat, sys_symlinkat, sys_readlinkat
 	.word sys_fchmodat, sys_faccessat, sys_pselect6, sys_ppoll, sys_unshare
diff --git a/include/asm-sparc/unistd.h b/include/asm-sparc/unistd.h
index 264f0ebeaedcefde264f9da35d04dc5ee6ad1c21..2a911aa4cae9f8578d2410a2d26fe07f8c868540 100644
--- a/include/asm-sparc/unistd.h
+++ b/include/asm-sparc/unistd.h
@@ -296,7 +296,7 @@
 #define __NR_mq_notify		277
 #define __NR_mq_getsetattr	278
 #define __NR_waitid		279
-#define __NR_sys_setaltroot	280
+#define __NR_tee		280
 #define __NR_add_key		281
 #define __NR_request_key	282
 #define __NR_keyctl		283
diff --git a/include/asm-sparc64/unistd.h b/include/asm-sparc64/unistd.h
index d0544b4f47b75d30744098f551f1374c745dadbb..6ada6a871cc8b60b3eaf4deb9b1ca158660c3894 100644
--- a/include/asm-sparc64/unistd.h
+++ b/include/asm-sparc64/unistd.h
@@ -298,7 +298,7 @@
 #define __NR_mq_notify		277
 #define __NR_mq_getsetattr	278
 #define __NR_waitid		279
-/*#define __NR_sys_setaltroot	280 available (was setaltroot) */
+#define __NR_tee		280
 #define __NR_add_key		281
 #define __NR_request_key	282
 #define __NR_keyctl		283