5 files changed, 8 insertions, 133 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,
 	return ret;
 }
 
-#ifdef CONFIG_SYSCTL_SYSCALL
-struct __sysctl_args32 {
-	u32 name;
-	int nlen;
-	u32 oldval;
-	u32 oldlenp;
-	u32 newval;
-	u32 newlen;
-	u32 __unused[4];
-};
-
-asmlinkage long sys32_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 *)compat_ptr(tmp.oldlenp)) ||
-		    put_user(oldlen, (size_t __user *)addr))
-			return -EFAULT;
-		oldlenp = (size_t __user *)addr;
-	}
-
-	lock_kernel();
-	error = do_sysctl(compat_ptr(tmp.name), tmp.nlen, compat_ptr(tmp.oldval),
-			  oldlenp, compat_ptr(tmp.newval), tmp.newlen);
-	unlock_kernel();
-	if (oldlenp) {
-		if (!error) {
-			if (get_user(oldlen, (size_t __user *)addr) ||
-			    put_user(oldlen, (u32 __user *)compat_ptr(tmp.oldlenp)))
-				error = -EFAULT;
-		}
-		if (copy_to_user(args->__unused, tmp.__unused,
-				 sizeof(tmp.__unused)))
-			error = -EFAULT;
-	}
-	return error;
-}
-#endif
-
 struct stat64_emu31 {
 	unsigned long long  st_dev;
 	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 {
 	compat_sigset_t		uc_sigmask;	/* mask last for extensibility */
 };
 
-struct __sysctl_args32;
 struct stat64_emu31;
 struct mmap_arg_struct_emu31;
 struct fadvise64_64_args;
@@ -212,7 +211,6 @@ long sys32_sendfile(int out_fd, int in_fd, compat_off_t __user *offset,
 		    size_t count);
 long sys32_sendfile64(int out_fd, int in_fd, compat_loff_t __user *offset,
 		      s32 count);
-long sys32_sysctl(struct __sysctl_args32 __user *args);
 long sys32_stat64(char __user * filename, struct stat64_emu31 __user * statbuf);
 long sys32_lstat64(char __user * filename,
 		   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:
 	llgfr	%r2,%r2			# unsigned int
 	jg	sys_fdatasync		# branch to system call
 
-#sys32_sysctl_wrapper			# tbd
-
 	.globl	sys32_mlock_wrapper
 sys32_mlock_wrapper:
 	llgfr	%r2,%r2			# unsigned long
@@ -1087,8 +1085,8 @@ sys32_stime_wrapper:
 
 	.globl	sys32_sysctl_wrapper
 sys32_sysctl_wrapper:
-	llgtr	%r2,%r2 		# struct __sysctl_args32 *
-	jg	sys32_sysctl
+	llgtr	%r2,%r2 		# struct compat_sysctl_args *
+	jg	compat_sys_sysctl
 
 	.globl	sys32_fstat64_wrapper
 sys32_fstat64_wrapper:
diff --git a/arch/s390/kernel/debug.c b/arch/s390/kernel/debug.c
index 20f282c911c2..071c81f179ef 100644
--- a/arch/s390/kernel/debug.c
+++ b/arch/s390/kernel/debug.c
@@ -893,35 +893,30 @@ s390dbf_procactive(ctl_table *table, int write,
 
 static struct ctl_table s390dbf_table[] = {
 	{
-		.ctl_name       = CTL_S390DBF_STOPPABLE,
 		.procname       = "debug_stoppable",
 		.data		= &debug_stoppable,
 		.maxlen		= sizeof(int),
 		.mode           = S_IRUGO | S_IWUSR,
-		.proc_handler   = &proc_dointvec,
-		.strategy	= &sysctl_intvec,
+		.proc_handler   = proc_dointvec,
 	},
 	 {
-		.ctl_name       = CTL_S390DBF_ACTIVE,
 		.procname       = "debug_active",
 		.data		= &debug_active,
 		.maxlen		= sizeof(int),
 		.mode           = S_IRUGO | S_IWUSR,
-		.proc_handler   = &s390dbf_procactive,
-		.strategy	= &sysctl_intvec,
+		.proc_handler   = s390dbf_procactive,
 	},
-	{ .ctl_name = 0 }
+	{ }
 };
 
 static struct ctl_table s390dbf_dir_table[] = {
 	{
-		.ctl_name       = CTL_S390DBF,
 		.procname       = "s390dbf",
 		.maxlen         = 0,
 		.mode           = S_IRUGO | S_IXUGO,
 		.child          = s390dbf_table,
 	},
-	{ .ctl_name = 0 }
+	{ }
 };
 
 static struct ctl_table_header *s390dbf_sysctl_header;
diff --git a/arch/s390/kernel/ftrace.c b/arch/s390/kernel/ftrace.c
index f5fe34dd821b..5a82bc68193e 100644
--- a/arch/s390/kernel/ftrace.c
+++ b/arch/s390/kernel/ftrace.c
@@ -203,73 +203,10 @@ out:
 
 #ifdef CONFIG_FTRACE_SYSCALLS
 
-extern unsigned long __start_syscalls_metadata[];
-extern unsigned long __stop_syscalls_metadata[];
 extern unsigned int sys_call_table[];
 
-static struct syscall_metadata **syscalls_metadata;
-
-struct syscall_metadata *syscall_nr_to_meta(int nr)
-{
-	if (!syscalls_metadata || nr >= NR_syscalls || nr < 0)
-		return NULL;
-
-	return syscalls_metadata[nr];
-}
-
-int syscall_name_to_nr(char *name)
-{
-	int i;
-
-	if (!syscalls_metadata)
-		return -1;
-	for (i = 0; i < NR_syscalls; i++)
-		if (syscalls_metadata[i])
-			if (!strcmp(syscalls_metadata[i]->name, name))
-				return i;
-	return -1;
-}
-
-void set_syscall_enter_id(int num, int id)
-{
-	syscalls_metadata[num]->enter_id = id;
-}
-
-void set_syscall_exit_id(int num, int id)
+unsigned long __init arch_syscall_addr(int nr)
 {
-	syscalls_metadata[num]->exit_id = id;
-}
-
-static struct syscall_metadata *find_syscall_meta(unsigned long syscall)
-{
-	struct syscall_metadata *start;
-	struct syscall_metadata *stop;
-	char str[KSYM_SYMBOL_LEN];
-
-	start = (struct syscall_metadata *)__start_syscalls_metadata;
-	stop = (struct syscall_metadata *)__stop_syscalls_metadata;
-	kallsyms_lookup(syscall, NULL, NULL, NULL, str);
-
-	for ( ; start < stop; start++) {
-		if (start->name && !strcmp(start->name + 3, str + 3))
-			return start;
-	}
-	return NULL;
-}
-
-static int __init arch_init_ftrace_syscalls(void)
-{
-	struct syscall_metadata *meta;
-	int i;
-	syscalls_metadata = kzalloc(sizeof(*syscalls_metadata) * NR_syscalls,
-				    GFP_KERNEL);
-	if (!syscalls_metadata)
-		return -ENOMEM;
-	for (i = 0; i < NR_syscalls; i++) {
-		meta = find_syscall_meta((unsigned long)sys_call_table[i]);
-		syscalls_metadata[i] = meta;
-	}
-	return 0;
+	return (unsigned long)sys_call_table[nr];
 }
-arch_initcall(arch_init_ftrace_syscalls);
 #endif