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diff --git a/linux/pcmcia-cs/include/pcmcia/mem_op.h b/linux/pcmcia-cs/include/pcmcia/mem_op.h
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+/*
+ * mem_op.h 1.14 2001/08/24 12:16:13
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License
+ * at http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+ * the License for the specific language governing rights and
+ * limitations under the License.
+ *
+ * The initial developer of the original code is David A. Hinds
+ * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds
+ * are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
+ *
+ * Alternatively, the contents of this file may be used under the
+ * terms of the GNU General Public License version 2 (the "GPL"), in
+ * which case the provisions of the GPL are applicable instead of the
+ * above. If you wish to allow the use of your version of this file
+ * only under the terms of the GPL and not to allow others to use
+ * your version of this file under the MPL, indicate your decision by
+ * deleting the provisions above and replace them with the notice and
+ * other provisions required by the GPL. If you do not delete the
+ * provisions above, a recipient may use your version of this file
+ * under either the MPL or the GPL.
+ */
+
+#ifndef _LINUX_MEM_OP_H
+#define _LINUX_MEM_OP_H
+
+#include <asm/uaccess.h>
+
+/*
+ If UNSAFE_MEMCPY is defined, we use the (optimized) system routines
+ to copy between a card and kernel memory. These routines do 32-bit
+ operations which may not work with all PCMCIA controllers. The
+ safe versions defined here will do only 8-bit and 16-bit accesses.
+*/
+
+#ifdef UNSAFE_MEMCPY
+
+#define copy_from_pc memcpy_fromio
+#define copy_to_pc memcpy_toio
+
+static inline void copy_pc_to_user(void *to, const void *from, size_t n)
+{
+ size_t odd = (n & 3);
+ n -= odd;
+ while (n) {
+ put_user(readl_ns(from), (int *)to);
+ (char *)from += 4; (char *)to += 4; n -= 4;
+ }
+ while (odd--)
+ put_user(readb((char *)from++), (char *)to++);
+}
+
+static inline void copy_user_to_pc(void *to, const void *from, size_t n)
+{
+ int l;
+ char c;
+ size_t odd = (n & 3);
+ n -= odd;
+ while (n) {
+ get_user(l, (int *)from);
+ writel_ns(l, to);
+ (char *)to += 4; (char *)from += 4; n -= 4;
+ }
+ while (odd--) {
+ get_user(c, (char *)from++);
+ writeb(c, (char *)to++);
+ }
+}
+
+#else /* UNSAFE_MEMCPY */
+
+static inline void copy_from_pc(void *to, const void *from, size_t n)
+{
+ size_t odd = (n & 1);
+ n -= odd;
+ while (n) {
+ *(u_short *)to = readw_ns(from);
+ (char *)to += 2; (char *)from += 2; n -= 2;
+ }
+ if (odd)
+ *(u_char *)to = readb(from);
+}
+
+static inline void copy_to_pc(void *to, const void *from, size_t n)
+{
+ size_t odd = (n & 1);
+ n -= odd;
+ while (n) {
+ writew_ns(*(u_short *)from, to);
+ (char *)to += 2; (char *)from += 2; n -= 2;
+ }
+ if (odd)
+ writeb(*(u_char *)from, to);
+}
+
+static inline void copy_pc_to_user(void *to, const void *from, size_t n)
+{
+ size_t odd = (n & 1);
+ n -= odd;
+ while (n) {
+ put_user(readw_ns(from), (short *)to);
+ (char *)to += 2; (char *)from += 2; n -= 2;
+ }
+ if (odd)
+ put_user(readb(from), (char *)to);
+}
+
+static inline void copy_user_to_pc(void *to, const void *from, size_t n)
+{
+ short s;
+ char c;
+ size_t odd = (n & 1);
+ n -= odd;
+ while (n) {
+ get_user(s, (short *)from);
+ writew_ns(s, to);
+ (char *)to += 2; (char *)from += 2; n -= 2;
+ }
+ if (odd) {
+ get_user(c, (char *)from);
+ writeb(c, to);
+ }
+}
+
+#endif /* UNSAFE_MEMCPY */
+
+#endif /* _LINUX_MEM_OP_H */