sparc: get rid of asm wrapper for nis_syscall()

just use current_pt_regs()

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

5 files changed, 5 insertions, 16 deletions

diff --git a/arch/sparc/kernel/entry.S b/arch/sparc/kernel/entry.S
index b47917939bc5..4d3696973325 100644
--- a/arch/sparc/kernel/entry.S
+++ b/arch/sparc/kernel/entry.S
@@ -801,13 +801,6 @@ SUN_PI_(lda	[%l4] ASI_M_MMUREGS, %l5)	! read sfsr last
         RESTORE_ALL
 
         .align  4
-        .globl  sys_nis_syscall
-sys_nis_syscall:
-        mov     %o7, %l5
-        add     %sp, STACKFRAME_SZ, %o0         ! pt_regs *regs arg
-        call    c_sys_nis_syscall
-         mov    %l5, %o7
-
 sunos_execv:
         .globl  sunos_execv
         b       sys_execve
diff --git a/arch/sparc/kernel/sys_sparc_32.c b/arch/sparc/kernel/sys_sparc_32.c
index a927be4a51e7..a5df89743e06 100644
--- a/arch/sparc/kernel/sys_sparc_32.c
+++ b/arch/sparc/kernel/sys_sparc_32.c
@@ -127,11 +127,10 @@ SYSCALL_DEFINE5(sparc_remap_file_pages, unsigned long, start, unsigned long, siz
                                     (pgoff >> (PAGE_SHIFT - 12)), flags);
 }
 
-/* we come to here via sys_nis_syscall so it can setup the regs argument */
-asmlinkage unsigned long
-c_sys_nis_syscall (struct pt_regs *regs)
+SYSCALL_DEFINE0(nis_syscall)
 {
         static int count = 0;
+        struct pt_regs *regs = current_pt_regs();
 
         if (count++ > 5)
                 return -ENOSYS;
diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c
index b929414fa9f2..c66a396d7afe 100644
--- a/arch/sparc/kernel/sys_sparc_64.c
+++ b/arch/sparc/kernel/sys_sparc_64.c
@@ -480,10 +480,10 @@ SYSCALL_DEFINE5(64_mremap, unsigned long, addr,	unsigned long, old_len,
         return sys_mremap(addr, old_len, new_len, flags, new_addr);
 }
 
-/* we come to here via sys_nis_syscall so it can setup the regs argument */
-asmlinkage unsigned long c_sys_nis_syscall(struct pt_regs *regs)
+SYSCALL_DEFINE0(nis_syscall)
 {
         static int count;
+        struct pt_regs *regs = current_pt_regs();
         
         /* Don't make the system unusable, if someone goes stuck */
         if (count++ > 5)
diff --git a/arch/sparc/kernel/syscalls.S b/arch/sparc/kernel/syscalls.S
index d7d86b95011a..db42b4fb3708 100644
--- a/arch/sparc/kernel/syscalls.S
+++ b/arch/sparc/kernel/syscalls.S
@@ -27,9 +27,6 @@ sys32_execveat:
 #endif
 
         .align  32
-sys_nis_syscall:
-        ba,pt   %xcc, c_sys_nis_syscall
-         add    %sp, PTREGS_OFF, %o0
 #ifdef CONFIG_COMPAT
 sys32_sigstack:
         ba,pt   %xcc, do_sys32_sigstack
diff --git a/arch/sparc/kernel/systbls.h b/arch/sparc/kernel/systbls.h
index 1cb02fa28e9c..bf014267d619 100644
--- a/arch/sparc/kernel/systbls.h
+++ b/arch/sparc/kernel/systbls.h
@@ -11,7 +11,7 @@
 
 asmlinkage long sys_getpagesize(void);
 asmlinkage long sys_sparc_pipe(void);
-asmlinkage unsigned long c_sys_nis_syscall(struct pt_regs *regs);
+asmlinkage long sys_nis_syscall(void);
 asmlinkage long sys_getdomainname(char __user *name, int len);
 void do_rt_sigreturn(struct pt_regs *regs);
 asmlinkage long sys_mmap(unsigned long addr, unsigned long len,