Re: [PATCH] mt76: fix endianness sparse warnings

From: Stanislaw Gruszka
Date: Fri Apr 26 2019 - 03:46:40 EST


On Thu, Apr 25, 2019 at 10:42:01PM +0800, Ryder Lee wrote:
> Fix many warnings with incorrect endian assumptions.
>
> Reported-by: kbuild test robot <lkp@xxxxxxxxx>
> Signed-off-by: Ryder Lee <ryder.lee@xxxxxxxxxxxx>
> ---
> drivers/net/wireless/mediatek/mt76/mt7603/mac.c | 2 +-
> drivers/net/wireless/mediatek/mt76/mt7615/mac.c | 12 ++++++------
> 2 files changed, 7 insertions(+), 7 deletions(-)
>
> diff --git a/drivers/net/wireless/mediatek/mt76/mt7603/mac.c b/drivers/net/wireless/mediatek/mt76/mt7603/mac.c
> index 2f2961ee0a92..af5769d05e6f 100644
> --- a/drivers/net/wireless/mediatek/mt76/mt7603/mac.c
> +++ b/drivers/net/wireless/mediatek/mt76/mt7603/mac.c
> @@ -627,7 +627,7 @@ mt7603_mac_fill_rx(struct mt7603_dev *dev, struct sk_buff *skb)
> status->aggr = unicast &&
> !ieee80211_is_qos_nullfunc(hdr->frame_control);
> status->tid = *ieee80211_get_qos_ctl(hdr) & IEEE80211_QOS_CTL_TID_MASK;
> - status->seqno = IEEE80211_SEQ_TO_SN(hdr->seq_ctrl);
> + status->seqno = IEEE80211_SEQ_TO_SN(__le16_to_cpu(hdr->seq_ctrl));
>
> return 0;
> }
> diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mac.c b/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
> index 1bf3e7b5f6a7..4b934b0f5a39 100644
> --- a/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
> +++ b/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
> @@ -235,7 +235,7 @@ int mt7615_mac_fill_rx(struct mt7615_dev *dev, struct sk_buff *skb)
> status->aggr = unicast &&
> !ieee80211_is_qos_nullfunc(hdr->frame_control);
> status->tid = *ieee80211_get_qos_ctl(hdr) & IEEE80211_QOS_CTL_TID_MASK;
> - status->seqno = IEEE80211_SEQ_TO_SN(hdr->seq_ctrl);
> + status->seqno = IEEE80211_SEQ_TO_SN(__le16_to_cpu(hdr->seq_ctrl));

Is there any reason to use underscored version instead of standard le16_to_cpu() ?

Stanislaw