lib/ubsan.c: fix gcc-10 warnings

The latest compiler expects slightly different function prototypes
for the ubsan helpers:

  lib/ubsan.c:192:6: error: conflicting types for built-in function '__ubsan_handle_add_overflow'; expected 'void(void *, void *, void *)' [-Werror=builtin-declaration-mismatch]
    192 | void __ubsan_handle_add_overflow(struct overflow_data *data,
        |      ^~~~~~~~~~~~~~~~~~~~~~~~~~~
  lib/ubsan.c:200:6: error: conflicting types for built-in function '__ubsan_handle_sub_overflow'; expected 'void(void *, void *, void *)' [-Werror=builtin-declaration-mismatch]
    200 | void __ubsan_handle_sub_overflow(struct overflow_data *data,
        |      ^~~~~~~~~~~~~~~~~~~~~~~~~~~
  lib/ubsan.c:207:6: error: conflicting types for built-in function '__ubsan_handle_mul_overflow'; expected 'void(void *, void *, void *)' [-Werror=builtin-declaration-mismatch]
    207 | void __ubsan_handle_mul_overflow(struct overflow_data *data,
        |      ^~~~~~~~~~~~~~~~~~~~~~~~~~~
  lib/ubsan.c:214:6: error: conflicting types for built-in function '__ubsan_handle_negate_overflow'; expected 'void(void *, void *)' [-Werror=builtin-declaration-mismatch]
    214 | void __ubsan_handle_negate_overflow(struct overflow_data *data,
        |      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  lib/ubsan.c:234:6: error: conflicting types for built-in function '__ubsan_handle_divrem_overflow'; expected 'void(void *, void *, void *)' [-Werror=builtin-declaration-mismatch]
    234 | void __ubsan_handle_divrem_overflow(struct overflow_data *data,
        |      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Change the Linux implementation to match these, using a local typed
pointer.

Signed-off-by: Arnd Bergmann <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Reviewed-by: Kees Cook <[email protected]>
Cc: Andrey Ryabinin <[email protected]>
Cc: Herbert Xu <[email protected]>
Cc: Julien Grall <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Linus Torvalds <[email protected]>

0 files changed, 0 insertions, 0 deletions