When building with -Wsometimes-uninitialized, Clang warns: drivers/net/wireless/intel/iwlwifi/mvm/sta.c:2114:12: warning: variable 'queue' is used uninitialized whenever 'if' condition is false [-Wsometimes-uninitialized]
Clang can't evaluate at this point that WARN(1, ...) always returns true because __ret_warn_on is defined as !!(condition), which isn't immediately evaluated as 1. Change this branch to else so that it's clear to Clang that we intend to bail out here. Link: https://github.com/ClangBuiltLinux/linux/issues/399 Signed-off-by: Nathan Chancellor <natechancel...@gmail.com> --- drivers/net/wireless/intel/iwlwifi/mvm/sta.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/sta.c b/drivers/net/wireless/intel/iwlwifi/mvm/sta.c index 498c315291cf..360724ec41a6 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/sta.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/sta.c @@ -2111,8 +2111,10 @@ int iwl_mvm_send_add_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) queue = mvm->probe_queue; else if (vif->type == NL80211_IFTYPE_P2P_DEVICE) queue = mvm->p2p_dev_queue; - else if (WARN(1, "Missing required TXQ for adding bcast STA\n")) + else { + WARN(1, "Missing required TXQ for adding bcast STA\n"); return -EINVAL; + } bsta->tfd_queue_msk |= BIT(queue); -- 2.21.0
