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-rw-r--r--include/asm-generic/checksum.h4
-rw-r--r--include/asm-generic/uaccess.h14
2 files changed, 17 insertions, 1 deletions
diff --git a/include/asm-generic/checksum.h b/include/asm-generic/checksum.h
index c084767c88bc..59811df58c5b 100644
--- a/include/asm-generic/checksum.h
+++ b/include/asm-generic/checksum.h
@@ -38,12 +38,15 @@ extern __wsum csum_partial_copy_from_user(const void __user *src, void *dst,
csum_partial_copy((src), (dst), (len), (sum))
#endif
+#ifndef ip_fast_csum
/*
* This is a version of ip_compute_csum() optimized for IP headers,
* which always checksum on 4 octet boundaries.
*/
extern __sum16 ip_fast_csum(const void *iph, unsigned int ihl);
+#endif
+#ifndef csum_fold
/*
* Fold a partial checksum
*/
@@ -54,6 +57,7 @@ static inline __sum16 csum_fold(__wsum csum)
sum = (sum & 0xffff) + (sum >> 16);
return (__force __sum16)~sum;
}
+#endif
#ifndef csum_tcpudp_nofold
/*
diff --git a/include/asm-generic/uaccess.h b/include/asm-generic/uaccess.h
index 9788568f7978..c184aa8ec8cd 100644
--- a/include/asm-generic/uaccess.h
+++ b/include/asm-generic/uaccess.h
@@ -7,7 +7,6 @@
* address space, e.g. all NOMMU machines.
*/
#include <linux/sched.h>
-#include <linux/mm.h>
#include <linux/string.h>
#include <asm/segment.h>
@@ -32,7 +31,9 @@ static inline void set_fs(mm_segment_t fs)
}
#endif
+#ifndef segment_eq
#define segment_eq(a, b) ((a).seg == (b).seg)
+#endif
#define VERIFY_READ 0
#define VERIFY_WRITE 1
@@ -168,12 +169,18 @@ static inline __must_check long __copy_to_user(void __user *to,
-EFAULT; \
})
+#ifndef __put_user_fn
+
static inline int __put_user_fn(size_t size, void __user *ptr, void *x)
{
size = __copy_to_user(ptr, x, size);
return size ? -EFAULT : size;
}
+#define __put_user_fn(sz, u, k) __put_user_fn(sz, u, k)
+
+#endif
+
extern int __put_user_bad(void) __attribute__((noreturn));
#define __get_user(x, ptr) \
@@ -224,12 +231,17 @@ extern int __put_user_bad(void) __attribute__((noreturn));
-EFAULT; \
})
+#ifndef __get_user_fn
static inline int __get_user_fn(size_t size, const void __user *ptr, void *x)
{
size = __copy_from_user(x, ptr, size);
return size ? -EFAULT : size;
}
+#define __get_user_fn(sz, u, k) __get_user_fn(sz, u, k)
+
+#endif
+
extern int __get_user_bad(void) __attribute__((noreturn));
#ifndef __copy_from_user_inatomic