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[v4,0/2] wifi: ath11k: fix data out of sync for channel list for reg update

Message ID 20241213093909.629-1-quic_kangyang@quicinc.com
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Series wifi: ath11k: fix data out of sync for channel list for reg update | expand

Message

Kang Yang Dec. 13, 2024, 9:39 a.m. UTC 
Currently there are two threads to updating/fetch data of channel
list, and there are no synchronization for the data, it leads data out
of sync for channel list when doing reg update.

So change the call flow to make sure the fetch data running after the
update data finished, then data of channel list become synchronization.

Note: This patch-set is an old patch-set in public review written by
Wen Gong. Just continue sending it for him.
Link: https://lore.kernel.org/linux-wireless/20230329091235.19500-1-quic_wgong@quicinc.com/

v4:
    1. rewrite commit message in patch#1, #2.
    2. use list_splice_tail_init() to move list entry.
    3. use data_lock instead of adding a new lock.
v3:
    1. rebase on tag ath-202411251703.
    2. add KASAN BUG report in patch #1.
v2:
    1. rewrite commit message for patch #1 and #2.
    2. use a local list without the spinlock held for patch #2.

Wen Gong (2):
  wifi: ath11k: move update channel list from update reg worker to reg
    notifier
  wifi: ath11k: move update channel list to worker when wait flag is set

 drivers/net/wireless/ath/ath11k/core.c |   1 +
 drivers/net/wireless/ath/ath11k/core.h |   4 +-
 drivers/net/wireless/ath/ath11k/mac.c  |  14 ++++
 drivers/net/wireless/ath/ath11k/reg.c  | 107 +++++++++++++++++--------
 drivers/net/wireless/ath/ath11k/reg.h  |   1 +
 drivers/net/wireless/ath/ath11k/wmi.h  |   1 +
 6 files changed, 93 insertions(+), 35 deletions(-)


base-commit: 175616a7658cd5d53389d1f9c1ce22debd4595a5