Hi Taehee,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on net-next/master]
url:
https://github.com/0day-ci/linux/commits/Taehee-Yoo/mld-change-context-from-atomic-to-sleepable/20210214-015930
base: https://git.kernel.org/pub/scm/linux/kernel/git/davem/ne
The ifmcaddr6 has been protected by inet6_dev->lock(rwlock) so that
the critical section is atomic context. In order to switch this context,
changing locking is needed. The ifmcaddr6 actually already protected by
RTNL So if it's converted to use RCU, its control path context can be
switched to slee
