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Diffstat (limited to 'arch/um/kernel/skas/include/uaccess-skas.h')
-rw-r--r--arch/um/kernel/skas/include/uaccess-skas.h45
1 files changed, 45 insertions, 0 deletions
diff --git a/arch/um/kernel/skas/include/uaccess-skas.h b/arch/um/kernel/skas/include/uaccess-skas.h
new file mode 100644
index 00000000000..11986c9b9dd
--- /dev/null
+++ b/arch/um/kernel/skas/include/uaccess-skas.h
@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
+ * Licensed under the GPL
+ */
+
+#ifndef __SKAS_UACCESS_H
+#define __SKAS_UACCESS_H
+
+#include "asm/errno.h"
+#include "asm/fixmap.h"
+
+#define access_ok_skas(type, addr, size) \
+ ((segment_eq(get_fs(), KERNEL_DS)) || \
+ (((unsigned long) (addr) < TASK_SIZE) && \
+ ((unsigned long) (addr) + (size) <= TASK_SIZE)) || \
+ ((type == VERIFY_READ ) && \
+ ((unsigned long) (addr) >= FIXADDR_USER_START) && \
+ ((unsigned long) (addr) + (size) <= FIXADDR_USER_END) && \
+ ((unsigned long) (addr) + (size) >= (unsigned long)(addr))))
+
+static inline int verify_area_skas(int type, const void * addr,
+ unsigned long size)
+{
+ return(access_ok_skas(type, addr, size) ? 0 : -EFAULT);
+}
+
+extern int copy_from_user_skas(void *to, const void *from, int n);
+extern int copy_to_user_skas(void *to, const void *from, int n);
+extern int strncpy_from_user_skas(char *dst, const char *src, int count);
+extern int __clear_user_skas(void *mem, int len);
+extern int clear_user_skas(void *mem, int len);
+extern int strnlen_user_skas(const void *str, int len);
+
+#endif
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only. This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-file-style: "linux"
+ * End:
+ */