sparc: switch compat pread64 and pwrite64 to COMPAT_SYSCALL_DEFINE

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

arch/sparc/kernel/sys_sparc32.c

@@ -194,22 +194,16 @@ COMPAT_SYSCALL_DEFINE5(rt_sigaction, int, sig,
         return ret;
 }
 
-asmlinkage compat_ssize_t sys32_pread64(unsigned int fd,
-					char __user *ubuf,
-					compat_size_t count,
-					unsigned long poshi,
-					unsigned long poslo)
+COMPAT_SYSCALL_DEFINE5(pread64, unsigned int, fd, char __user *, ubuf,
+			compat_size_t, count, u32, poshi, u32, poslo)
 {
-	return sys_pread64(fd, ubuf, count, (poshi << 32) | poslo);
+	return sys_pread64(fd, ubuf, count, ((u64)poshi << 32) | poslo);
 }
 
-asmlinkage compat_ssize_t sys32_pwrite64(unsigned int fd,
-					 char __user *ubuf,
-					 compat_size_t count,
-					 unsigned long poshi,
-					 unsigned long poslo)
+COMPAT_SYSCALL_DEFINE5(pwrite64, unsigned int, fd, char __user *, ubuf,
+			compat_size_t, count, u32, poshi, u32, poslo)
 {
-	return sys_pwrite64(fd, ubuf, count, (poshi << 32) | poslo);
+	return sys_pwrite64(fd, ubuf, count, ((u64)poshi << 32) | poslo);
 }
 
 COMPAT_SYSCALL_DEFINE4(readahead, int, fd, u32, offhi, u32, offlo,

arch/sparc/kernel/systbls.h

@@ -65,16 +65,16 @@ asmlinkage long compat_sys_fstat64(unsigned int fd,
 asmlinkage long compat_sys_fstatat64(unsigned int dfd,
 				     const char __user *filename,
 				     struct compat_stat64 __user * statbuf, int flag);
-asmlinkage compat_ssize_t sys32_pread64(unsigned int fd,
+asmlinkage long compat_sys_pread64(unsigned int fd,
 					char __user *ubuf,
 					compat_size_t count,
-					unsigned long poshi,
-					unsigned long poslo);
-asmlinkage compat_ssize_t sys32_pwrite64(unsigned int fd,
+					u32 poshi,
+					u32 poslo);
+asmlinkage long compat_sys_pwrite64(unsigned int fd,
 					 char __user *ubuf,
 					 compat_size_t count,
-					 unsigned long poshi,
-					 unsigned long poslo);
+					 u32 poshi,
+					 u32 poslo);
 asmlinkage long compat_sys_readahead(int fd,
 				     unsigned offhi,
 				     unsigned offlo,

arch/sparc/kernel/systbls_64.S

@@ -32,7 +32,7 @@ sys_call_table32:
 /*50*/	.word sys_getegid16, sys_acct, sys_nis_syscall, sys_getgid, compat_sys_ioctl
 	.word sys_reboot, sys32_mmap2, sys_symlink, sys_readlink, sys32_execve
 /*60*/	.word sys_umask, sys_chroot, compat_sys_newfstat, compat_sys_fstat64, sys_getpagesize
-	.word sys_msync, sys_vfork, sys32_pread64, sys32_pwrite64, sys_geteuid
+	.word sys_msync, sys_vfork, compat_sys_pread64, compat_sys_pwrite64, sys_geteuid
 /*70*/	.word sys_getegid, sys_mmap, sys_setreuid, sys_munmap, sys_mprotect
 	.word sys_madvise, sys_vhangup, sys32_truncate64, sys_mincore, sys_getgroups16
 /*80*/	.word sys_setgroups16, sys_getpgrp, sys_setgroups, compat_sys_setitimer, sys32_ftruncate64