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-rw-r--r--net/mac80211/tx.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 457166889cc7..4ab29282dd67 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -476,7 +476,7 @@ ieee80211_tx_h_fragment(struct ieee80211_txrx_data *tx)
hdrlen = ieee80211_get_hdrlen(tx->fc);
payload_len = first->len - hdrlen;
per_fragm = frag_threshold - hdrlen - FCS_LEN;
- num_fragm = (payload_len + per_fragm - 1) / per_fragm;
+ num_fragm = DIV_ROUND_UP(payload_len, per_fragm);
frags = kzalloc(num_fragm * sizeof(struct sk_buff *), GFP_ATOMIC);
if (!frags)