audit: x86: drop arch from __audit_syscall_entry() interface

Since the arch is found locally in __audit_syscall_entry(), there is no need to
pass it in as a parameter.  Delete it from the parameter list.

x86* was the only arch to call __audit_syscall_entry() directly and did so from
assembly code.

Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-audit@redhat.com
Signed-off-by: Eric Paris <eparis@redhat.com>

---

As this patch relies on changes in the audit tree, I think it
appropriate to send it through my tree rather than the x86 tree.
diff --git a/include/linux/audit.h b/include/linux/audit.h
index 783157b..1ae0089 100644
--- a/include/linux/audit.h
+++ b/include/linux/audit.h
@@ -115,8 +115,7 @@
 				/* Public API */
 extern int  audit_alloc(struct task_struct *task);
 extern void __audit_free(struct task_struct *task);
-extern void __audit_syscall_entry(int arch,
-				  int major, unsigned long a0, unsigned long a1,
+extern void __audit_syscall_entry(int major, unsigned long a0, unsigned long a1,
 				  unsigned long a2, unsigned long a3);
 extern void __audit_syscall_exit(int ret_success, long ret_value);
 extern struct filename *__audit_reusename(const __user char *uptr);
@@ -148,7 +147,7 @@
 				       unsigned long a3)
 {
 	if (unlikely(current->audit_context))
-		__audit_syscall_entry(syscall_get_arch(), major, a0, a1, a2, a3);
+		__audit_syscall_entry(major, a0, a1, a2, a3);
 }
 static inline void audit_syscall_exit(void *pt_regs)
 {