diff options
| author | Eric W. Biederman <ebiederm@xmission.com> | 2009-04-03 00:46:47 -0700 |
|---|---|---|
| committer | Eric W. Biederman <ebiederm@xmission.com> | 2009-11-06 03:53:18 -0800 |
| commit | aff639cdcfe7450e04109be3759faa8f1e5572f5 (patch) | |
| tree | 2f5bf1348e36fb28eb188fe539559f8254c21853 /arch/mips | |
| parent | 6f589526df36dc6ac60df48e7ca23f536e71d332 (diff) | |
sysctl: mips Use the compat_sys_sysctl
Now that we have a generic 32bit compatibility implementation
there is no need for mips to implement it's own.
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Diffstat (limited to 'arch/mips')
| -rw-r--r-- | arch/mips/kernel/linux32.c | 61 | ||||
| -rw-r--r-- | arch/mips/kernel/scall64-n32.S | 2 | ||||
| -rw-r--r-- | arch/mips/kernel/scall64-o32.S | 2 |
3 files changed, 2 insertions, 63 deletions
diff --git a/arch/mips/kernel/linux32.c b/arch/mips/kernel/linux32.c index b77fefaff9d..1a2793efdc4 100644 --- a/arch/mips/kernel/linux32.c +++ b/arch/mips/kernel/linux32.c @@ -265,67 +265,6 @@ SYSCALL_DEFINE5(n32_msgrcv, int, msqid, u32, msgp, size_t, msgsz, } #endif -struct sysctl_args32 -{ - compat_caddr_t name; - int nlen; - compat_caddr_t oldval; - compat_caddr_t oldlenp; - compat_caddr_t newval; - compat_size_t newlen; - unsigned int __unused[4]; -}; - -#ifdef CONFIG_SYSCTL_SYSCALL - -SYSCALL_DEFINE1(32_sysctl, struct sysctl_args32 __user *, args) -{ - struct sysctl_args32 tmp; - int error; - size_t oldlen; - size_t __user *oldlenp = NULL; - unsigned long addr = (((unsigned long)&args->__unused[0]) + 7) & ~7; - - if (copy_from_user(&tmp, args, sizeof(tmp))) - return -EFAULT; - - if (tmp.oldval && tmp.oldlenp) { - /* Duh, this is ugly and might not work if sysctl_args - is in read-only memory, but do_sysctl does indirectly - a lot of uaccess in both directions and we'd have to - basically copy the whole sysctl.c here, and - glibc's __sysctl uses rw memory for the structure - anyway. */ - if (get_user(oldlen, (u32 __user *)A(tmp.oldlenp)) || - put_user(oldlen, (size_t __user *)addr)) - return -EFAULT; - oldlenp = (size_t __user *)addr; - } - - lock_kernel(); - error = do_sysctl((int __user *)A(tmp.name), tmp.nlen, (void __user *)A(tmp.oldval), - oldlenp, (void __user *)A(tmp.newval), tmp.newlen); - unlock_kernel(); - if (oldlenp) { - if (!error) { - if (get_user(oldlen, (size_t __user *)addr) || - put_user(oldlen, (u32 __user *)A(tmp.oldlenp))) - error = -EFAULT; - } - copy_to_user(args->__unused, tmp.__unused, sizeof(tmp.__unused)); - } - return error; -} - -#else - -SYSCALL_DEFINE1(32_sysctl, struct sysctl_args32 __user *, args) -{ - return -ENOSYS; -} - -#endif /* CONFIG_SYSCTL_SYSCALL */ - SYSCALL_DEFINE1(32_newuname, struct new_utsname __user *, name) { int ret = 0; diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S index 6ebc0797669..8a0be0bdeba 100644 --- a/arch/mips/kernel/scall64-n32.S +++ b/arch/mips/kernel/scall64-n32.S @@ -272,7 +272,7 @@ EXPORT(sysn32_call_table) PTR sys_munlockall PTR sys_vhangup /* 6150 */ PTR sys_pivot_root - PTR sys_32_sysctl + PTR compat_sys_sysctl PTR sys_prctl PTR compat_sys_adjtimex PTR compat_sys_setrlimit /* 6155 */ diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S index 14dde4ca932..41dbdb7d67e 100644 --- a/arch/mips/kernel/scall64-o32.S +++ b/arch/mips/kernel/scall64-o32.S @@ -356,7 +356,7 @@ sys_call_table: PTR sys_ni_syscall /* 4150 */ PTR sys_getsid PTR sys_fdatasync - PTR sys_32_sysctl + PTR compat_sys_sysctl PTR sys_mlock PTR sys_munlock /* 4155 */ PTR sys_mlockall |