Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 78 insertions, 0 deletions

diff --git a/arch/arm/lib/getuser.S b/arch/arm/lib/getuser.S
new file mode 100644
index 000000000000..64aa6f4fe5e4
--- /dev/null
+++ b/arch/arm/lib/getuser.S
@@ -0,0 +1,78 @@
+/*
+ *  linux/arch/arm/lib/getuser.S
+ *
+ *  Copyright (C) 2001 Russell King
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ *  Idea from x86 version, (C) Copyright 1998 Linus Torvalds
+ *
+ * These functions have a non-standard call interface to make them more
+ * efficient, especially as they return an error value in addition to
+ * the "real" return value.
+ *
+ * __get_user_X
+ *
+ * Inputs:      r0 contains the address
+ * Outputs:     r0 is the error code
+ *              r2, r3 contains the zero-extended value
+ *              lr corrupted
+ *
+ * No other registers must be altered.  (see include/asm-arm/uaccess.h
+ * for specific ASM register usage).
+ *
+ * Note that ADDR_LIMIT is either 0 or 0xc0000000.
+ * Note also that it is intended that __get_user_bad is not global.
+ */
+#include <asm/constants.h>
+#include <asm/thread_info.h>
+#include <asm/errno.h>
+
+        .global __get_user_1
+__get_user_1:
+1:      ldrbt   r2, [r0]
+        mov     r0, #0
+        mov     pc, lr
+
+        .global __get_user_2
+__get_user_2:
+2:      ldrbt   r2, [r0], #1
+3:      ldrbt   r3, [r0]
+#ifndef __ARMEB__
+        orr     r2, r2, r3, lsl #8
+#else
+        orr     r2, r3, r2, lsl #8
+#endif
+        mov     r0, #0
+        mov     pc, lr
+
+        .global __get_user_4
+__get_user_4:
+4:      ldrt    r2, [r0]
+        mov     r0, #0
+        mov     pc, lr
+
+        .global __get_user_8
+__get_user_8:
+5:      ldrt    r2, [r0], #4
+6:      ldrt    r3, [r0]
+        mov     r0, #0
+        mov     pc, lr
+
+__get_user_bad_8:
+        mov     r3, #0
+__get_user_bad:
+        mov     r2, #0
+        mov     r0, #-EFAULT
+        mov     pc, lr
+
+.section __ex_table, "a"
+        .long   1b, __get_user_bad
+        .long   2b, __get_user_bad
+        .long   3b, __get_user_bad
+        .long   4b, __get_user_bad
+        .long   5b, __get_user_bad_8
+        .long   6b, __get_user_bad_8
+.previous