Hi,
I recently ran into a sparse error when running sparse on Intel's i40e kernel
driver against v4.7-rc3.
CC [M] drivers/net/ethernet/intel/i40e/i40e_nvm.o
include/linux/sctp.h:172:51: error: bad constant expression
include/linux/sctp.h:174:51: error: bad constant expression
include/linux/sctp.h:172:51: error: bad constant expression
include/linux/sctp.h:174:51: error: bad constant expression
include/linux/sctp.h:175:51: error: bad constant expression
include/linux/sctp.h:176:51: error: bad constant expression
include/linux/sctp.h:177:51: error: bad constant expression
include/linux/sctp.h:178:51: error: bad constant expression
And similar. I ran a bisect and determined the offending commit was
7322dd755e7d ("byteswap: try to avoid __builtin_constant_p gcc bug", 2016-05-05)
I am not sure if this is a regression in sparse, a real issue, or something
else?
Thanks,
Jake
