sparc: get rid of remaining SIGN... wrappers

just convert compat_sys_{readahead,fadvise64,fadvise64_64} to
COMPAT_SYSCALL_DEFINE
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

arch/sparc/kernel/sys32.S

@@ -13,34 +13,6 @@
 
 	.text
 
-#define SIGN1(STUB,SYSCALL,REG1) \
-	.align	32; \
-	.globl	STUB; \
-STUB:	sethi	%hi(SYSCALL), %g1; \
-	jmpl	%g1 + %lo(SYSCALL), %g0; \
-	sra	REG1, 0, REG1
-
-#define SIGN2(STUB,SYSCALL,REG1,REG2) \
-	.align	32; \
-	.globl	STUB; \
-STUB:	sethi	%hi(SYSCALL), %g1; \
-	sra	REG1, 0, REG1; \
-	jmpl	%g1 + %lo(SYSCALL), %g0; \
-	sra	REG2, 0, REG2
-
-#define SIGN3(STUB,SYSCALL,REG1,REG2,REG3) \
-	.align	32; \
-	.globl	STUB; \
-STUB:	sra	REG1, 0, REG1; \
-	sethi	%hi(SYSCALL), %g1; \
-	sra	REG2, 0, REG2; \
-	jmpl	%g1 + %lo(SYSCALL), %g0; \
-	sra	REG3, 0, REG3
-
-SIGN1(sys32_readahead, compat_sys_readahead, %o0)
-SIGN2(sys32_fadvise64, compat_sys_fadvise64, %o0, %o4)
-SIGN2(sys32_fadvise64_64, compat_sys_fadvise64_64, %o0, %o5)
-
 	.globl		sys32_mmap2
 sys32_mmap2:
 	sethi		%hi(sys_mmap), %g1

arch/sparc/kernel/sys_sparc32.c

@@ -212,30 +212,24 @@ asmlinkage compat_ssize_t sys32_pwrite64(unsigned int fd,
 	return sys_pwrite64(fd, ubuf, count, (poshi << 32) | poslo);
 }
 
-asmlinkage long compat_sys_readahead(int fd,
-				     unsigned long offhi,
-				     unsigned long offlo,
-				     compat_size_t count)
+COMPAT_SYSCALL_DEFINE4(readahead, int, fd, u32, offhi, u32, offlo,
+		     compat_size_t, count)
 {
-	return sys_readahead(fd, (offhi << 32) | offlo, count);
+	return sys_readahead(fd, ((u64)offhi << 32) | offlo, count);
 }
 
-long compat_sys_fadvise64(int fd,
-			  unsigned long offhi,
-			  unsigned long offlo,
-			  compat_size_t len, int advice)
+COMPAT_SYSCALL_DEFINE5(fadvise64, int, fd, u32, offhi, u32, offlo,
+			  compat_size_t, len, int, advice)
 {
-	return sys_fadvise64_64(fd, (offhi << 32) | offlo, len, advice);
+	return sys_fadvise64_64(fd, ((u64)offhi << 32) | offlo, len, advice);
 }
 
-long compat_sys_fadvise64_64(int fd,
-			     unsigned long offhi, unsigned long offlo,
-			     unsigned long lenhi, unsigned long lenlo,
-			     int advice)
+COMPAT_SYSCALL_DEFINE6(fadvise64_64, int, fd, u32, offhi, u32, offlo,
+			     u32, lenhi, u32, lenlo, int, advice)
 {
 	return sys_fadvise64_64(fd,
-				(offhi << 32) | offlo,
-				(lenhi << 32) | lenlo,
+				((u64)offhi << 32) | offlo,
+				((u64)lenhi << 32) | lenlo,
 				advice);
 }
 

arch/sparc/kernel/systbls.h

@@ -77,16 +77,16 @@ asmlinkage compat_ssize_t sys32_pwrite64(unsigned int fd,
 					 unsigned long poshi,
 					 unsigned long poslo);
 asmlinkage long compat_sys_readahead(int fd,
-				     unsigned long offhi,
-				     unsigned long offlo,
+				     unsigned offhi,
+				     unsigned offlo,
 				     compat_size_t count);
 long compat_sys_fadvise64(int fd,
-			  unsigned long offhi,
-			  unsigned long offlo,
+			  unsigned offhi,
+			  unsigned offlo,
 			  compat_size_t len, int advice);
 long compat_sys_fadvise64_64(int fd,
-			     unsigned long offhi, unsigned long offlo,
-			     unsigned long lenhi, unsigned long lenlo,
+			     unsigned offhi, unsigned offlo,
+			     unsigned lenhi, unsigned lenlo,
 			     int advice);
 long sys32_sync_file_range(unsigned int fd,
 			   unsigned long off_high, unsigned long off_low,

arch/sparc/kernel/systbls_64.S

@@ -60,8 +60,8 @@ sys_call_table32:
 /*190*/	.word sys_init_module, sys_sparc64_personality, sys_remap_file_pages, sys_epoll_create, sys_epoll_ctl
 	.word sys_epoll_wait, sys_ioprio_set, sys_getppid, compat_sys_sparc_sigaction, sys_sgetmask
 /*200*/	.word sys_ssetmask, sys_sigsuspend, compat_sys_newlstat, sys_uselib, compat_sys_old_readdir
-	.word sys32_readahead, sys32_socketcall, sys_syslog, compat_sys_lookup_dcookie, sys32_fadvise64
-/*210*/	.word sys32_fadvise64_64, sys_tgkill, sys_waitpid, sys_swapoff, compat_sys_sysinfo
+	.word compat_sys_readahead, sys32_socketcall, sys_syslog, compat_sys_lookup_dcookie, compat_sys_fadvise64
+/*210*/	.word compat_sys_fadvise64_64, sys_tgkill, sys_waitpid, sys_swapoff, compat_sys_sysinfo
 	.word compat_sys_ipc, sys32_sigreturn, sys_clone, sys_ioprio_get, compat_sys_adjtimex
 /*220*/	.word compat_sys_sigprocmask, sys_ni_syscall, sys_delete_module, sys_ni_syscall, sys_getpgid
 	.word sys_bdflush, sys_sysfs, sys_nis_syscall, sys_setfsuid16, sys_setfsgid16