The arm64 build failed on linux-next master branch.
make -sk KBUILD_BUILD_USER=TuxBuild -C/linux -j16 ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- HOSTCC=gcc CC="sccache aarch64-linux-gnu-gcc" O=build Image
In file included from ../kernel/rcu/update.c:562: ../kernel/rcu/tasks.h: In function ‘show_rcu_tasks_gp_kthreads’: ../kernel/rcu/tasks.h:1070:37: error: ‘rcu_tasks_rude’ undeclared (first use in this function); did you mean ‘rcu_tasks_qs’? 1070 | show_rcu_tasks_generic_gp_kthread(&rcu_tasks_rude, ""); | ^~~~~~~~~~~~~~ | rcu_tasks_qs ../kernel/rcu/tasks.h:1070:37: note: each undeclared identifier is reported only once for each function it appears in
Ref: https://gitlab.com/Linaro/lkft/kernel-runs/-/jobs/476084417