Add link_id parameter to cfg80211_ch_switch_started_notify() to allow driver to indicate on which link channel switch started on MLD. Send the data to userspace so it knows as well. Signed-off-by: Veerendranath Jakkam <quic_vjakkam@quicinc.com> Link: https://lore.kernel.org/r/20220722131143.3438042-1-quic_vjakkam@quicinc.com Link: https://lore.kernel.org/r/20220722131143.3438042-2-quic_vjakkam@quicinc.com [squash two patches] Signed-off-by: Johannes Berg <johannes.berg@intel.com> Bug: 243994705 (cherry picked from commit b8c9024e0ed03c5feb29bd1086a1eb799f3fff44) [cmllamas: fix minor merge conflict in net/mac80211/cfg.c] Change-Id: I82e18b7cea893d5ab45217457712e63b2fc8c764 Signed-off-by: Carlos Llamas <cmllamas@google.com>