patch-2.4.10 linux/arch/mips64/kernel/syscall.c

• Lines: 74
• Date: Sun Sep 9 10:43:01 2001
• Orig file: v2.4.9/linux/arch/mips64/kernel/syscall.c
• Orig date: Mon Mar 19 12:35:10 2001

diff -u --recursive --new-file v2.4.9/linux/arch/mips64/kernel/syscall.c linux/arch/mips64/kernel/syscall.c
@@ -3,8 +3,9 @@
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
  *
- * Copyright (C) 1995 - 2000 by Ralf Baechle
+ * Copyright (C) 1995 - 2000, 2001 by Ralf Baechle
  * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
+ * Copyright (C) 2001 MIPS Technologies, Inc.
  */
 #include <linux/errno.h>
 #include <linux/linkage.h>
@@ -129,7 +130,7 @@
 }
 
 asmlinkage int
-sys_sysmips(int cmd, long arg1, int arg2, int arg3)
+_sys_sysmips(int cmd, long arg1, int arg2, int arg3)
 {
 	int	*p;
 	char	*name;
@@ -155,50 +156,9 @@
 		return 0;
 	}
 
-	case MIPS_ATOMIC_SET: {
-		unsigned int tmp;
-
-		p = (int *) arg1;
-		errno = verify_area(VERIFY_WRITE, p, sizeof(*p));
-		if (errno)
-			return errno;
-		errno = 0;
-
-		__asm__(".set\tpush\t\t\t# sysmips(MIPS_ATOMIC, ...)\n\t"
-			".set\tnoreorder\n\t"
-			".set\tnoat\n\t"
-			"1:\tll\t%0, %4\n\t"
-			"2:\tmove\t$1, %3\n\t"
-			"3:\tsc\t$1, %1\n\t"
-			"beqzl\t$1, 2b\n\t"
-			"4:\t ll\t%0, %4\n\t"
-			".set\tpop\n\t"
-			".section\t.fixup,\"ax\"\n"
-			"5:\tli\t%2, 1\t\t\t# error\n\t"
-			".previous\n\t"
-			".section\t__ex_table,\"a\"\n\t"
-			".dword\t1b, 5b\n\t"
-			".dword\t3b, 5b\n\t"
-			".dword\t4b, 5b\n\t"
-			".previous\n\t"
-			: "=&r" (tmp), "=o" (* (u32 *) p), "=r" (errno)
-			: "r" (arg2), "o" (* (u32 *) p), "2" (errno)
-			: "$1");
-
-		if (errno)
-			return -EFAULT;
-
-		/* We're skipping error handling etc.  */
-		if (current->ptrace & PT_TRACESYS)
-			syscall_trace();
-
-		__asm__ __volatile__(
-			"move\t$29, %0\n\t"
-			"j\tret_from_sys_call"
-			: /* No outputs */
-			: "r" (&cmd));
-		/* Unreached */
-	}
+	case MIPS_ATOMIC_SET:
+		printk(KERN_CRIT "How did I get here?\n");
+		return -EINVAL;
 
 	case MIPS_FIXADE:
 		tmp = current->thread.mflags & ~3;