Messages in this thread | | | Date | Thu, 9 Sep 2021 18:25:25 +1000 | From | Stephen Rothwell <> | Subject | linux-next: build failure while building Linus' tree |
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Hi all,
Building Linus' tree, today's linux-next build (powerpc ppc6xx_defconfig gcc4.9) failed like this:
ERROR: modpost: "__divdi3" [drivers/block/nbd.ko] undefined!
Caused by commit
fad7cd3310db ("nbd: add the check to prevent overflow in __nbd_ioctl()")
The added check_mul_overflow() call is being passed 64 bit values. COMPILER_HAS_GENERIC_BUILTIN_OVERFLOW is not set for this build (see include/linux/overflow.h).
-- Cheers, Stephen Rothwell [unhandled content-type:application/pgp-signature] | |