The iwl-debug.h header relies in implicit inclusion of linux/device.h and we get a lot of warnings without that: drivers/net/wireless/intel/iwlwifi/iwl-debug.h:44:23: error: 'struct device' declared inside parameter list will not be visible outside of this definition or declaration [-Werror] void __iwl_err(struct device *dev, bool rfkill_prefix, bool only_trace, ^~~~~~ In file included from drivers/net/wireless/intel/iwlwifi/iwl-eeprom-read.h:66:0, from drivers/net/wireless/intel/iwlwifi/iwl-eeprom-read.c:68: drivers/net/wireless/intel/iwlwifi/iwl-trans.h: In function 'iwl_trans_tx': drivers/net/wireless/intel/iwlwifi/iwl-trans.h:1030:348: error: passing argument 1 of '__iwl_err' from incompatible pointer type [-Werror=incompatible-pointer-types] IWL_ERR(trans, "%s bad state = %d\n", __func__, trans->state); ^ In file included from drivers/net/wireless/intel/iwlwifi/iwl-eeprom-read.c:67:0: drivers/net/wireless/intel/iwlwifi/iwl-debug.h:44:6: note: expected 'struct device *' but argument is of type 'struct device *' void __iwl_err(struct device *dev, bool rfkill_prefix, bool only_trace, ^~~~~~~~~ The easiest workaround is to just declare 'struct device' before its first use, rather than including the entire header file. Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> Fixes: 21cb3222fe56 ("iwlwifi: decouple PCIe transport from mac80211") --- drivers/net/wireless/intel/iwlwifi/iwl-debug.h | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-debug.h b/drivers/net/wireless/intel/iwlwifi/iwl-debug.h index 110333208450..cd77c6971753 100644 --- a/drivers/net/wireless/intel/iwlwifi/iwl-debug.h +++ b/drivers/net/wireless/intel/iwlwifi/iwl-debug.h @@ -41,6 +41,7 @@ static inline bool iwl_have_debug_level(u32 level) #endif } +struct device; void __iwl_err(struct device *dev, bool rfkill_prefix, bool only_trace, const char *fmt, ...) __printf(4, 5); void __iwl_warn(struct device *dev, const char *fmt, ...) __printf(2, 3); -- 2.9.0 -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html