Re: [PATCH v20 2/2] wireless: Initial driver submission for pureLiFi STA devices

From: kernel test robot
Date: Wed Oct 27 2021 - 07:34:49 EST

Hi Srinivasan,

I love your patch! Perhaps something to improve:

[auto build test WARNING on kvalo-wireless-drivers-next/master]
[also build test WARNING on kvalo-wireless-drivers/master jberg-mac80211/master v5.15-rc7]
[cannot apply to jberg-mac80211-next/master next-20211026]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url: https://github.com/0day-ci/linux/commits/Srinivasan-Raju/nl80211-Add-LC-placeholder-band-definition-to-nl80211_band/20211018-190152
base: https://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next.git master
config: mips-randconfig-r011-20211027 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 5db7568a6a1fcb408eb8988abdaff2a225a8eb72)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# install mips cross compiling tool for clang build
# apt-get install binutils-mips-linux-gnu
# https://github.com/0day-ci/linux/commit/ae5d24705bf40b9954a995fd7d768ab4cc879bc2
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Srinivasan-Raju/nl80211-Add-LC-placeholder-band-definition-to-nl80211_band/20211018-190152
git checkout ae5d24705bf40b9954a995fd7d768ab4cc879bc2
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=mips

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All warnings (new ones prefixed by >>):

>> drivers/net/wireless/purelifi/plfxlc/usb.c:55:7: warning: logical not is only applied to the left hand side of this bitwise operator [-Wlogical-not-parentheses]
if (!tx->station[sidx].flag & STATION_CONNECTED_FLAG)
^ ~
drivers/net/wireless/purelifi/plfxlc/usb.c:55:7: note: add parentheses after the '!' to evaluate the bitwise operator first
if (!tx->station[sidx].flag & STATION_CONNECTED_FLAG)
^
( )
drivers/net/wireless/purelifi/plfxlc/usb.c:55:7: note: add parentheses around left hand side expression to silence this warning
if (!tx->station[sidx].flag & STATION_CONNECTED_FLAG)
^
( )
drivers/net/wireless/purelifi/plfxlc/usb.c:38:19: warning: unused function 'get_bcd_device' [-Wunused-function]
static inline u16 get_bcd_device(const struct usb_device *udev)
^
2 warnings generated.
--
>> drivers/net/wireless/purelifi/plfxlc/mac.c:560:25: warning: parameter 'changed_flags' set but not used [-Wunused-but-set-parameter]
unsigned int changed_flags,
^
1 warning generated.


vim +55 drivers/net/wireless/purelifi/plfxlc/usb.c

42
43 void purelifi_send_packet_from_data_queue(struct purelifi_usb *usb)
44 {
45 struct sk_buff *skb = NULL;
46 unsigned long flags;
47 static u8 sidx;
48 u8 last_served_sidx;
49 struct purelifi_usb_tx *tx = &usb->tx;
50
51 spin_lock_irqsave(&tx->lock, flags);
52 last_served_sidx = sidx;
53 do {
54 sidx = (sidx + 1) % MAX_STA_NUM;
> 55 if (!tx->station[sidx].flag & STATION_CONNECTED_FLAG)
56 continue;
57 if (!(tx->station[sidx].flag & STATION_FIFO_FULL_FLAG))
58 skb = skb_peek(&tx->station[sidx].data_list);
59 } while ((sidx != last_served_sidx) && (!skb));
60
61 if (skb) {
62 skb = skb_dequeue(&tx->station[sidx].data_list);
63 plf_usb_wreq_async(usb, skb->data, skb->len, USB_REQ_DATA_TX,
64 tx_urb_complete, skb);
65 if (skb_queue_len(&tx->station[sidx].data_list) <= 60)
66 ieee80211_wake_queues(purelifi_usb_to_hw(usb));
67 }
68 spin_unlock_irqrestore(&tx->lock, flags);
69 }
70

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx

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