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-rw-r--r--arch/s390/kernel/compat_linux.c53
-rw-r--r--arch/s390/kernel/compat_linux.h2
-rw-r--r--arch/s390/kernel/compat_wrapper.S6
3 files changed, 2 insertions, 59 deletions
diff --git a/arch/s390/kernel/compat_linux.c b/arch/s390/kernel/compat_linux.c
index 0debcec23a39..fda1a8123f9b 100644
--- a/arch/s390/kernel/compat_linux.c
+++ b/arch/s390/kernel/compat_linux.c
@@ -527,59 +527,6 @@ asmlinkage long sys32_sendfile64(int out_fd, int in_fd,
527 return ret; 527 return ret;
528} 528}
529 529
530#ifdef CONFIG_SYSCTL_SYSCALL
531struct __sysctl_args32 {
532 u32 name;
533 int nlen;
534 u32 oldval;
535 u32 oldlenp;
536 u32 newval;
537 u32 newlen;
538 u32 __unused[4];
539};
540
541asmlinkage long sys32_sysctl(struct __sysctl_args32 __user *args)
542{
543 struct __sysctl_args32 tmp;
544 int error;
545 size_t oldlen;
546 size_t __user *oldlenp = NULL;
547 unsigned long addr = (((unsigned long)&args->__unused[0]) + 7) & ~7;
548
549 if (copy_from_user(&tmp, args, sizeof(tmp)))
550 return -EFAULT;
551
552 if (tmp.oldval && tmp.oldlenp) {
553 /* Duh, this is ugly and might not work if sysctl_args
554 is in read-only memory, but do_sysctl does indirectly
555 a lot of uaccess in both directions and we'd have to
556 basically copy the whole sysctl.c here, and
557 glibc's __sysctl uses rw memory for the structure
558 anyway. */
559 if (get_user(oldlen, (u32 __user *)compat_ptr(tmp.oldlenp)) ||
560 put_user(oldlen, (size_t __user *)addr))
561 return -EFAULT;
562 oldlenp = (size_t __user *)addr;
563 }
564
565 lock_kernel();
566 error = do_sysctl(compat_ptr(tmp.name), tmp.nlen, compat_ptr(tmp.oldval),
567 oldlenp, compat_ptr(tmp.newval), tmp.newlen);
568 unlock_kernel();
569 if (oldlenp) {
570 if (!error) {
571 if (get_user(oldlen, (size_t __user *)addr) ||
572 put_user(oldlen, (u32 __user *)compat_ptr(tmp.oldlenp)))
573 error = -EFAULT;
574 }
575 if (copy_to_user(args->__unused, tmp.__unused,
576 sizeof(tmp.__unused)))
577 error = -EFAULT;
578 }
579 return error;
580}
581#endif
582
583struct stat64_emu31 { 530struct stat64_emu31 {
584 unsigned long long st_dev; 531 unsigned long long st_dev;
585 unsigned int __pad1; 532 unsigned int __pad1;
diff --git a/arch/s390/kernel/compat_linux.h b/arch/s390/kernel/compat_linux.h
index c07f9ca05ade..45e9092b3aad 100644
--- a/arch/s390/kernel/compat_linux.h
+++ b/arch/s390/kernel/compat_linux.h
@@ -162,7 +162,6 @@ struct ucontext32 {
162 compat_sigset_t uc_sigmask; /* mask last for extensibility */ 162 compat_sigset_t uc_sigmask; /* mask last for extensibility */
163}; 163};
164 164
165struct __sysctl_args32;
166struct stat64_emu31; 165struct stat64_emu31;
167struct mmap_arg_struct_emu31; 166struct mmap_arg_struct_emu31;
168struct fadvise64_64_args; 167struct fadvise64_64_args;
@@ -212,7 +211,6 @@ long sys32_sendfile(int out_fd, int in_fd, compat_off_t __user *offset,
212 size_t count); 211 size_t count);
213long sys32_sendfile64(int out_fd, int in_fd, compat_loff_t __user *offset, 212long sys32_sendfile64(int out_fd, int in_fd, compat_loff_t __user *offset,
214 s32 count); 213 s32 count);
215long sys32_sysctl(struct __sysctl_args32 __user *args);
216long sys32_stat64(char __user * filename, struct stat64_emu31 __user * statbuf); 214long sys32_stat64(char __user * filename, struct stat64_emu31 __user * statbuf);
217long sys32_lstat64(char __user * filename, 215long sys32_lstat64(char __user * filename,
218 struct stat64_emu31 __user * statbuf); 216 struct stat64_emu31 __user * statbuf);
diff --git a/arch/s390/kernel/compat_wrapper.S b/arch/s390/kernel/compat_wrapper.S
index cbd9901dc0f8..30de2d0e52bb 100644
--- a/arch/s390/kernel/compat_wrapper.S
+++ b/arch/s390/kernel/compat_wrapper.S
@@ -689,8 +689,6 @@ sys32_fdatasync_wrapper:
689 llgfr %r2,%r2 # unsigned int 689 llgfr %r2,%r2 # unsigned int
690 jg sys_fdatasync # branch to system call 690 jg sys_fdatasync # branch to system call
691 691
692#sys32_sysctl_wrapper # tbd
693
694 .globl sys32_mlock_wrapper 692 .globl sys32_mlock_wrapper
695sys32_mlock_wrapper: 693sys32_mlock_wrapper:
696 llgfr %r2,%r2 # unsigned long 694 llgfr %r2,%r2 # unsigned long
@@ -1087,8 +1085,8 @@ sys32_stime_wrapper:
1087 1085
1088 .globl sys32_sysctl_wrapper 1086 .globl sys32_sysctl_wrapper
1089sys32_sysctl_wrapper: 1087sys32_sysctl_wrapper:
1090 llgtr %r2,%r2 # struct __sysctl_args32 * 1088 llgtr %r2,%r2 # struct compat_sysctl_args *
1091 jg sys32_sysctl 1089 jg compat_sys_sysctl
1092 1090
1093 .globl sys32_fstat64_wrapper 1091 .globl sys32_fstat64_wrapper
1094sys32_fstat64_wrapper: 1092sys32_fstat64_wrapper: