From 9decde95be8a77a16f5668544bee45d41a7ae665 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Tue, 30 Nov 2010 13:24:36 -0800 Subject: [PATCH] iwlagn: fix debug variable access MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit The compiler correctly warns: iwl-agn-tx.c: In function ‘iwlagn_tx_status_reply_compressed_ba’: iwl-agn-tx.c:1240: warning: ‘bitmap’ may be used uninitialized in this function Move the debug print to the branch that reads the bitmap, and move the variables too so it's more obvious where they are needed. Signed-off-by: Johannes Berg Signed-off-by: Wey-Yi Guy --- drivers/net/wireless/iwlwifi/iwl-agn-tx.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c index 72b1f262796..24a11b8f73b 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c @@ -1237,7 +1237,6 @@ static int iwlagn_tx_status_reply_compressed_ba(struct iwl_priv *priv, int i, sh, ack; u16 seq_ctl = le16_to_cpu(ba_resp->seq_ctl); u16 scd_flow = le16_to_cpu(ba_resp->scd_flow); - u64 bitmap, sent_bitmap; int successes = 0; struct ieee80211_tx_info *info; @@ -1278,6 +1277,8 @@ static int iwlagn_tx_status_reply_compressed_ba(struct iwl_priv *priv, IWL_DEBUG_HT(priv, "agg frames sent:%d, acked:%d\n", ba_resp->txed, ba_resp->txed_2_done); } else { + u64 bitmap, sent_bitmap; + /* don't use 64-bit values for now */ bitmap = le64_to_cpu(ba_resp->bitmap) >> sh; @@ -1298,7 +1299,11 @@ static int iwlagn_tx_status_reply_compressed_ba(struct iwl_priv *priv, sent_bitmap >>= 1; ++i; } + + IWL_DEBUG_TX_REPLY(priv, "Bitmap %llx\n", + (unsigned long long)bitmap); } + info = IEEE80211_SKB_CB(priv->txq[scd_flow].txb[agg->start_idx].skb); memset(&info->status, 0, sizeof(info->status)); info->flags |= IEEE80211_TX_STAT_ACK; @@ -1313,8 +1318,6 @@ static int iwlagn_tx_status_reply_compressed_ba(struct iwl_priv *priv, } iwlagn_hwrate_to_tx_control(priv, agg->rate_n_flags, info); - IWL_DEBUG_TX_REPLY(priv, "Bitmap %llx\n", (unsigned long long)bitmap); - return 0; } -- 2.20.1