These look like bugs:

drivers/net/wireless/iwlwifi/iwl3945-base.c:4848:18: warning: invalid assignment: |=
drivers/net/wireless/iwlwifi/iwl3945-base.c:4848:18:    left side has type unsigned char
drivers/net/wireless/iwlwifi/iwl3945-base.c:4848:18:    right side has type restricted __le32

drivers/net/wireless/libertas/cmd.c:609:16: warning: cast to restricted __le16
drivers/net/wireless/libertas/cmd.c:611:16: warning: cast to restricted __le16


These seem harmless:

drivers/net/wireless/zd1211rw/zd_usb.c:359:17: warning: implicit cast from nocast type

drivers/net/wireless/ath9k/main.c:1836:28: warning: incorrect type in argument 2 (different base types)
drivers/net/wireless/ath9k/main.c:1836:28:    expected restricted pci_power_t [usertype] state
drivers/net/wireless/ath9k/main.c:1836:28:    got int
drivers/net/wireless/ath9k/hw.c: In function ‘ath9k_hw_eeprom_set_board_values’:
drivers/net/wireless/ath9k/hw.c:544: warning: ‘ant_config’ may be used uninitialized in this function
drivers/net/wireless/ath9k/hw.c:4818:17: warning: symbol 'tmp' shadows an earlier one
drivers/net/wireless/ath9k/hw.c:4681:6: originally declared here
drivers/net/wireless/ath9k/hw.c:5020:17: warning: symbol 'tmp' shadows an earlier one
drivers/net/wireless/ath9k/hw.c:4930:6: originally declared here

[and a whole bunch in b43]

johannes