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lib: introduce strncpy_from_unsafe()

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generalize FETCH_FUNC_NAME(memory, string) into
strncpy_from_unsafe() and fix sparse warnings that were
present in original implementation.

Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Alexei Starovoitov
2015-08-28 15:56:22 -07:00
committed by David S. Miller
parent c9fd56b34e
commit 1a6877b9c0
3 changed files with 47 additions and 16 deletions
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include/linux/uaccess.h
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@@ -129,4 +129,6 @@ extern long __probe_kernel_read(void *dst, const void *src, size_t size);
extern long notrace probe_kernel_write(void *dst, const void *src, size_t size);
extern long notrace __probe_kernel_write(void *dst, const void *src, size_t size);
extern long strncpy_from_unsafe(char *dst, const void *unsafe_addr, long count);
#endif /* __LINUX_UACCESS_H__ */