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Merge branch 'uaccess.strlen' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

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Pull user access str* updates from Al Viro:
 "uaccess str...() dead code removal"

* 'uaccess.strlen' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  s390 keyboard.c: don't open-code strndup_user()
  mips: get rid of unused __strnlen_user()
  get rid of unused __strncpy_from_user() instances
  kill strlen_user()
This commit is contained in:
Linus Torvalds 2017-07-06 22:07:44 -07:00
commit dc502142b6
40 changed files with 5 additions and 601 deletions
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6
arch/xtensa/include/asm/uaccess.h
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@ -278,19 +278,15 @@ clear_user(void *addr, unsigned long size)
extern long __strncpy_user(char *, const char *, long);
#define __strncpy_from_user __strncpy_user
static inline long
strncpy_from_user(char *dst, const char *src, long count)
{
if (access_ok(VERIFY_READ, src, 1))
return __strncpy_from_user(dst, src, count);
return __strncpy_user(dst, src, count);
return -EFAULT;
}
#define strlen_user(str) strnlen_user((str), TASK_SIZE - 1)
/*
* Return the size of a string (including the ending 0!)
*/