On Thu, Aug 06, 2015 at 12:00:47PM +0100, Build bot for Mark Brown wrote: Today's linux-next fails to build an ARM allmodconfig with: > arm-allmodconfig > ../lib/test_user_copy.c:67:2: error: implicit declaration of function 'copy_in_user' [-Werror=implicit-function-declaration] > ../lib/test_user_copy.c:94:2: error: implicit declaration of function '__copy_in_user' [-Werror=implicit-function-declaration] due to 3a646f02c7 (lib/test_user_copy.c: check __copy_in_user()/copy_in_user()) which attempts to test copy_in_user() which doesn't appear to be defined, at least with the set of include files and/or config options you get with an allmodconfig and not at all as far as I can tell.
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