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30 lines
1.1 KiB
Diff
30 lines
1.1 KiB
Diff
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From 41e02bf4ae32cf2ac47b08b4caaa9c1a032e4ce7 Mon Sep 17 00:00:00 2001
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From: Harshitha Prem <quic_hprem@quicinc.com>
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Date: Tue, 4 Apr 2023 00:11:55 +0530
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Subject: [PATCH] wifi: ath11k: fix undefined behavior with __fls in dp
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"__fls" would have an undefined behavior if the argument is passed
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as "0". Hence, added changes to handle the same.
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Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.7.0.1-01744-QCAHKSWPL_SILICONZ-1
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Signed-off-by: Harshitha Prem <quic_hprem@quicinc.com>
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Signed-off-by: Nagarajan Maran <quic_nmaran@quicinc.com>
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Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
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Link: https://lore.kernel.org/r/20230403184155.8670-3-quic_nmaran@quicinc.com
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---
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drivers/net/wireless/ath/ath11k/dp_rx.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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--- a/drivers/net/wireless/ath/ath11k/dp_rx.c
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+++ b/drivers/net/wireless/ath/ath11k/dp_rx.c
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@@ -3598,7 +3598,7 @@ static int ath11k_dp_rx_frag_h_mpdu(stru
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goto out_unlock;
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}
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- if (frag_no > __fls(rx_tid->rx_frag_bitmap))
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+ if (!rx_tid->rx_frag_bitmap || (frag_no > __fls(rx_tid->rx_frag_bitmap)))
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__skb_queue_tail(&rx_tid->rx_frags, msdu);
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else
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ath11k_dp_rx_h_sort_frags(ar, &rx_tid->rx_frags, msdu);
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