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authorAl Viro <viro@zeniv.linux.org.uk>2018-03-20 17:34:57 +0300
committerAl Viro <viro@zeniv.linux.org.uk>2018-03-20 19:05:17 +0300
commit3d0e354e4e51f40a58ae8bff7ded60f0c1f5c618 (patch)
tree0743109297ab83f7072783a5bdf95083b37de6f3 /arch/sparc
parent8c82ccd63192a3ed66a454fdd70da2a4cc8455a1 (diff)
downloadlinux-3d0e354e4e51f40a58ae8bff7ded60f0c1f5c618.tar.xz
sparc: switch compat {f,}truncate64() to COMPAT_SYSCALL_DEFINE
... and drop the pointless checks - sys_truncate() itself might've lacked the check when that stuff was first written, but it has already grown one by the time that stuff went into mainline. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'arch/sparc')
-rw-r--r--arch/sparc/kernel/sys_sparc32.c14
-rw-r--r--arch/sparc/kernel/systbls.h12
-rw-r--r--arch/sparc/kernel/systbls_64.S4
3 files changed, 12 insertions, 18 deletions
diff --git a/arch/sparc/kernel/sys_sparc32.c b/arch/sparc/kernel/sys_sparc32.c
index 50e9e4fdd8c6..c27e7e9e641b 100644
--- a/arch/sparc/kernel/sys_sparc32.c
+++ b/arch/sparc/kernel/sys_sparc32.c
@@ -52,20 +52,14 @@
#include "systbls.h"
-asmlinkage long sys32_truncate64(const char __user * path, unsigned long high, unsigned long low)
+COMPAT_SYSCALL_DEFINE3(truncate64, const char __user *, path, u32, high, u32, low)
{
- if ((int)high < 0)
- return -EINVAL;
- else
- return sys_truncate(path, (high << 32) | low);
+ return sys_truncate(path, ((u64)high << 32) | low);
}
-asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long high, unsigned long low)
+COMPAT_SYSCALL_DEFINE3(ftruncate64, unsigned int, fd, u32, high, u32, low)
{
- if ((int)high < 0)
- return -EINVAL;
- else
- return sys_ftruncate(fd, (high << 32) | low);
+ return sys_ftruncate(fd, ((u64)high << 32) | low);
}
static int cp_compat_stat64(struct kstat *stat,
diff --git a/arch/sparc/kernel/systbls.h b/arch/sparc/kernel/systbls.h
index 922c253ee086..1cb02fa28e9c 100644
--- a/arch/sparc/kernel/systbls.h
+++ b/arch/sparc/kernel/systbls.h
@@ -49,12 +49,12 @@ asmlinkage long sys_utrap_install(utrap_entry_t type,
asmlinkage long sys_memory_ordering(unsigned long model);
asmlinkage void sparc64_set_context(struct pt_regs *regs);
asmlinkage void sparc64_get_context(struct pt_regs *regs);
-asmlinkage long sys32_truncate64(const char __user * path,
- unsigned long high,
- unsigned long low);
-asmlinkage long sys32_ftruncate64(unsigned int fd,
- unsigned long high,
- unsigned long low);
+asmlinkage long compat_sys_truncate64(const char __user * path,
+ u32 high,
+ u32 low);
+asmlinkage long compat_sys_ftruncate64(unsigned int fd,
+ u32 high,
+ u32 low);
struct compat_stat64;
asmlinkage long compat_sys_stat64(const char __user * filename,
struct compat_stat64 __user *statbuf);
diff --git a/arch/sparc/kernel/systbls_64.S b/arch/sparc/kernel/systbls_64.S
index 34dde99548b0..387ef993880a 100644
--- a/arch/sparc/kernel/systbls_64.S
+++ b/arch/sparc/kernel/systbls_64.S
@@ -34,8 +34,8 @@ sys_call_table32:
/*60*/ .word sys_umask, sys_chroot, compat_sys_newfstat, compat_sys_fstat64, sys_getpagesize
.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
+ .word sys_madvise, sys_vhangup, compat_sys_truncate64, sys_mincore, sys_getgroups16
+/*80*/ .word sys_setgroups16, sys_getpgrp, sys_setgroups, compat_sys_setitimer, compat_sys_ftruncate64
.word sys_swapon, compat_sys_getitimer, sys_setuid, sys_sethostname, sys_setgid
/*90*/ .word sys_dup2, sys_setfsuid, compat_sys_fcntl, compat_sys_select, sys_setfsgid
.word sys_fsync, sys_setpriority, sys_socket, sys_connect, sys_accept