[linux-next:master 6181/6533] net/rds/message.c:336:5: sparse: symbol 'rds_message_zcopy_from_user' was not declared. Should it be static?

[kbuild test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   c6f1a8c953479b390458e36fb838d96199a5f466
commit: d40a126b16ea851f858f97b0e214d97c8355cecb [6181/6533] rds: refactor zcopy code into rds_message_zcopy_from_user
reproduce:
        # apt-get install sparse
        git checkout d40a126b16ea851f858f97b0e214d97c8355cecb
        make ARCH=x86_64 allmodconfig
        make C=1 CF=-D__CHECK_ENDIAN__


sparse warnings: (new ones prefixed by >>)

>> net/rds/message.c:336:5: sparse: symbol 'rds_message_zcopy_from_user' was not declared. Should it be static?

Please review and possibly fold the followup patch.

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