2019-03-17 02:34:18

by Masahiro Yamada

Subject: [PATCH] mt76: Use the correct hweight8() function again

Commit d0ff23c1107e ("mt76: Use the correct hweight8() function")
fixed the wrong use of __sw_hweight8().

Just a week later, commit c8846e101502 ("mt76: add driver for MT7603E
and MT7628/7688") was applid, introducing __sw_hweight8() again.

Fixes: c8846e101502 ("mt76: add driver for MT7603E and MT7628/7688")
Signed-off-by: Masahiro Yamada <[email protected]>
---

drivers/net/wireless/mediatek/mt76/mt7603/beacon.c | 3 +--
drivers/net/wireless/mediatek/mt76/mt7603/init.c | 2 +-
drivers/net/wireless/mediatek/mt76/mt7603/mcu.c | 2 +-
3 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7603/beacon.c b/drivers/net/wireless/mediatek/mt76/mt7603/beacon.c
index afcd86f..4dcb465 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7603/beacon.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7603/beacon.c
@@ -135,8 +135,7 @@ void mt7603_pre_tbtt_tasklet(unsigned long arg)

out:
mt76_queue_tx_cleanup(dev, MT_TXQ_BEACON, false);
- if (dev->mt76.q_tx[MT_TXQ_BEACON].queued >
- __sw_hweight8(dev->beacon_mask))
+ if (dev->mt76.q_tx[MT_TXQ_BEACON].queued > hweight8(dev->beacon_mask))
dev->beacon_check++;
}

diff --git a/drivers/net/wireless/mediatek/mt76/mt7603/init.c b/drivers/net/wireless/mediatek/mt76/mt7603/init.c
index 15cc8f3..d54dda6 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7603/init.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7603/init.c
@@ -112,7 +112,7 @@ static void
mt7603_phy_init(struct mt7603_dev *dev)
{
int rx_chains = dev->mt76.antenna_mask;
- int tx_chains = __sw_hweight8(rx_chains) - 1;
+ int tx_chains = hweight8(rx_chains) - 1;

mt76_rmw(dev, MT_WF_RMAC_RMCR,
(MT_WF_RMAC_RMCR_SMPS_MODE |
diff --git a/drivers/net/wireless/mediatek/mt76/mt7603/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7603/mcu.c
index 4b0713f..d06905e 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7603/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7603/mcu.c
@@ -433,7 +433,7 @@ int mt7603_mcu_set_channel(struct mt7603_dev *dev)
{
struct cfg80211_chan_def *chandef = &dev->mt76.chandef;
struct ieee80211_hw *hw = mt76_hw(dev);
- int n_chains = __sw_hweight8(dev->mt76.antenna_mask);
+ int n_chains = hweight8(dev->mt76.antenna_mask);
struct {
u8 control_chan;
u8 center_chan;
--
2.7.4

2019-03-17 13:01:28

by Felix Fietkau

Subject: Re: [PATCH] mt76: Use the correct hweight8() function again

On 2019-03-17 03:32, Masahiro Yamada wrote:
> Commit d0ff23c1107e ("mt76: Use the correct hweight8() function")
> fixed the wrong use of __sw_hweight8().
>
> Just a week later, commit c8846e101502 ("mt76: add driver for MT7603E
> and MT7628/7688") was applid, introducing __sw_hweight8() again.
>
> Fixes: c8846e101502 ("mt76: add driver for MT7603E and MT7628/7688")
> Signed-off-by: Masahiro Yamada <[email protected]>
I've already sent the same patch to Kalle for 5.1 about a week ago.

- Felix