powerpc/debug: Add missing warn flag to WARN_ON's non-builtin path
authorAlexey Kardashevskiy <aik@ozlabs.ru>
Wed, 14 Jun 2017 03:01:25 +0000 (13:01 +1000)
committerMichael Ellerman <mpe@ellerman.id.au>
Fri, 16 Jun 2017 06:10:37 +0000 (16:10 +1000)
commita093c92dc7f96a15de98ec8cfe38e6f7610a5969
tree1a1ad5f230c808cb910b998f0715338cc7dd8fc2
parent25642705b2359a705784bbbf1655c25a8f8efde2
powerpc/debug: Add missing warn flag to WARN_ON's non-builtin path

When trapped on WARN_ON(), report_bug() is expected to return
BUG_TRAP_TYPE_WARN so the caller will increment NIP by 4 and continue.
The __builtin_constant_p() path of the PPC's WARN_ON()
calls (indirectly) __WARN_FLAGS() which has BUGFLAG_WARNING set,
however the other branch does not which makes report_bug() report a
bug rather than a warning.

Fixes: f26dee15103f ("debug: Avoid setting BUGFLAG_WARNING twice")
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
arch/powerpc/include/asm/bug.h