mips: syscalls: use pattern rules to generate syscall headers

Use pattern rules to unify similar build rules among n32, n64, and o32.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>

arch/mips/kernel/syscalls/Makefile

@@ -5,9 +5,6 @@ uapi := arch/$(SRCARCH)/include/generated/uapi/asm
 _dummy := $(shell [ -d '$(uapi)' ] || mkdir -p '$(uapi)')	\
 	  $(shell [ -d '$(kapi)' ] || mkdir -p '$(kapi)')
 
-syscalln32 := $(src)/syscall_n32.tbl
-syscalln64 := $(src)/syscall_n64.tbl
-syscallo32 := $(src)/syscall_o32.tbl
 syshdr := $(srctree)/scripts/syscallhdr.sh
 sysnr := $(srctree)/$(src)/syscallnr.sh
 systbl := $(srctree)/scripts/syscalltbl.sh
@@ -23,34 +20,17 @@ quiet_cmd_sysnr = SYSNR   $@
 quiet_cmd_systbl = SYSTBL  $@
       cmd_systbl = $(CONFIG_SHELL) $(systbl) $< $@
 
-$(uapi)/unistd_n32.h: $(syscalln32) $(syshdr) FORCE
-	$(call if_changed,syshdr)
-
-$(uapi)/unistd_n64.h: $(syscalln64) $(syshdr) FORCE
-	$(call if_changed,syshdr)
-
-$(uapi)/unistd_o32.h: $(syscallo32) $(syshdr) FORCE
+$(uapi)/unistd_%.h: $(src)/syscall_%.tbl $(syshdr) FORCE
 	$(call if_changed,syshdr)
 
 sysnr_pfx_unistd_nr_n32 := N32
-$(kapi)/unistd_nr_n32.h: $(syscalln32) $(sysnr) FORCE
-	$(call if_changed,sysnr)
-
 sysnr_pfx_unistd_nr_n64 := 64
-$(kapi)/unistd_nr_n64.h: $(syscalln64) $(sysnr) FORCE
-	$(call if_changed,sysnr)
-
 sysnr_pfx_unistd_nr_o32 := O32
-$(kapi)/unistd_nr_o32.h: $(syscallo32) $(sysnr) FORCE
-	$(call if_changed,sysnr)
-
-$(kapi)/syscall_table_n32.h: $(syscalln32) $(systbl) FORCE
-	$(call if_changed,systbl)
 
-$(kapi)/syscall_table_n64.h: $(syscalln64) $(systbl) FORCE
-	$(call if_changed,systbl)
+$(kapi)/unistd_nr_%.h: $(src)/syscall_%.tbl $(sysnr) FORCE
+	$(call if_changed,sysnr)
 
-$(kapi)/syscall_table_o32.h: $(syscallo32) $(systbl) FORCE
+$(kapi)/syscall_table_%.h: $(src)/syscall_%.tbl $(systbl) FORCE
 	$(call if_changed,systbl)
 
 uapisyshdr-y		+= unistd_n32.h			\