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kill strlen_user()

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no callers, no consistent semantics, no sane way to use it...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro
2017-04-07 17:20:01 -04:00
parent 2ea659a9ef
commit 8298525839
32 changed files with 2 additions and 465 deletions
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16
arch/m32r/include/asm/uaccess.h
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@@ -511,22 +511,6 @@ unsigned long __clear_user(void __user *mem, unsigned long len);
*/
unsigned long clear_user(void __user *mem, unsigned long len);
/**
* strlen_user: - Get the size of a string in user space.
* @str: The string to measure.
*
* Context: User context only. This function may sleep if pagefaults are
* enabled.
*
* Get the size of a NUL-terminated string in user space.
*
* Returns the size of the string INCLUDING the terminating NUL.
* On exception, returns 0.
*
* If there is a limit on the length of a valid string, you may wish to
* consider using strnlen_user() instead.
*/
#define strlen_user(str) strnlen_user(str, ~0UL >> 1)
long strnlen_user(const char __user *str, long n);
#endif /* _ASM_M32R_UACCESS_H */