[root@pve0 btier]# make
make -Wall -C /lib/modules/5.4.17-2036.104.5.el8uek.x86_64/build M=/root/btier/kernel/btier modules
make[1]: Entering directory '/usr/src/kernels/5.4.17-2036.104.5.el8uek.x86_64'
CC [M] /root/btier/kernel/btier/btier_sysfs.o
/root/btier/kernel/btier/btier_sysfs.c: In function ‘tier_attr_discard_store’:
/root/btier/kernel/btier/btier_sysfs.c:208:4: error: implicit declaration of function ‘queue_flag_clear_unlocked’; did you mean ‘queued_read_unlock’? [-Werror=implicit-function-declaration]
queue_flag_clear_unlocked(QUEUE_FLAG_DISCARD,
^~~~~~~~~~~~~~~~~~~~~~~~~
queued_read_unlock
/root/btier/kernel/btier/btier_sysfs.c:215:4: error: implicit declaration of function ‘queue_flag_set_unlocked’; did you mean ‘queued_write_unlock’? [-Werror=implicit-function-declaration]
queue_flag_set_unlocked(QUEUE_FLAG_DISCARD,
^~~~~~~~~~~~~~~~~~~~~~~
queued_write_unlock
cc1: some warnings being treated as errors
make[2]: *** [scripts/Makefile.build:266: /root/btier/kernel/btier/btier_sysfs.o] Error 1
make[1]: *** [Makefile:1768: /root/btier/kernel/btier] Error 2
make[1]: Leaving directory '/usr/src/kernels/5.4.17-2036.104.5.el8uek.x86_64'
make: *** [Makefile:6: default] Error 2
