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xtensa: fix type conversion in __get_user_size

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8-byte access in __get_user_size converts pointer to temporary variable
to the type of original user pointer and then dereferences it, resulting
in the following sparse warning:

  sparse: warning: dereference of noderef expression

Instead dereference the original user pointer under the __typeof__ and
add indirection outside.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
This commit is contained in:
Max Filippov 2020-05-22 13:20:05 -07:00
parent 3ac4a615bd
commit c22f907504
1 changed files with 1 additions and 1 deletions
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2
arch/xtensa/include/asm/uaccess.h
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@ -204,7 +204,7 @@ do { \
retval = -EFAULT; \
(x) = 0; \
} else { \
(x) = *(__force __typeof__((ptr)))&__x; \
(x) = *(__force __typeof__(*(ptr)) *)&__x; \
} \
break; \
} \