linux-next: build failure while building Linus' tree
From: Stephen Rothwell <hidden>
Date: 2021-09-09 08:25:38
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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 Attachments
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