kmsan: silence -Wmissing-prototypes warnings

When building the kernel with W=1, the compiler reports numerous warnings
about the missing prototypes for KMSAN instrumentation hooks.

Because these functions are not supposed to be called explicitly by the
kernel code (calls to them are emitted by the compiler), they do not have
to be declared in the headers.  Instead, we add forward declarations right
before the definitions to silence the warnings produced by
-Wmissing-prototypes.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Alexander Potapenko <[email protected]>
Reported-by: Vlastimil Babka <[email protected]>
Suggested-by: Marco Elver <[email protected]>
Reviewed-by: Marco Elver <[email protected]>
Reported-by: kernel test robot <[email protected]>
  Link: https://lore.kernel.org/lkml/[email protected]/T/
Cc: Dmitry Vyukov <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

0 files changed, 0 insertions, 0 deletions