From: kernel test robot <lkp@intel.com>
To: Lorenzo Bianconi <lorenzo@kernel.org>
Cc: llvm@lists.linux.dev, kbuild-all@lists.01.org,
linux-kernel@vger.kernel.org, Felix Fietkau <nbd@nbd.name>
Subject: [nbd168-wireless:mt76 73/113] drivers/net/wireless/mediatek/mt76/mt7921/mac.c:1347:21: warning: variable 'dev' set but not used
Date: Sat, 16 Oct 2021 05:24:06 +0800 [thread overview]
Message-ID: <202110160502.J4aSdm8Z-lkp@intel.com> (raw)
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tree: https://github.com/nbd168/wireless mt76
head: 39e333d657f49619c65b9f5b59aa6405f13abf35
commit: 6fab4ab4b0c10198055f44b4c6ac2c97a6b5d24e [73/113] mt76: mt7921: report tx rate directly from tx status
config: x86_64-randconfig-a004-20211015 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 6069a6a5049497a32a50a49661c2f4169078bdba)
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
# https://github.com/nbd168/wireless/commit/6fab4ab4b0c10198055f44b4c6ac2c97a6b5d24e
git remote add nbd168-wireless https://github.com/nbd168/wireless
git fetch --no-tags nbd168-wireless mt76
git checkout 6fab4ab4b0c10198055f44b4c6ac2c97a6b5d24e
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=x86_64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
>> drivers/net/wireless/mediatek/mt76/mt7921/mac.c:1347:21: warning: variable 'dev' set but not used [-Wunused-but-set-variable]
struct mt7921_dev *dev;
^
1 warning generated.
vim +/dev +1347 drivers/net/wireless/mediatek/mt76/mt7921/mac.c
a7742ef4cd9166 Lorenzo Bianconi 2021-08-16 1344
163f4d22c118d4 Sean Wang 2021-01-28 1345 void mt7921_tx_complete_skb(struct mt76_dev *mdev, struct mt76_queue_entry *e)
163f4d22c118d4 Sean Wang 2021-01-28 1346 {
163f4d22c118d4 Sean Wang 2021-01-28 @1347 struct mt7921_dev *dev;
163f4d22c118d4 Sean Wang 2021-01-28 1348
163f4d22c118d4 Sean Wang 2021-01-28 1349 if (!e->txwi) {
163f4d22c118d4 Sean Wang 2021-01-28 1350 dev_kfree_skb_any(e->skb);
163f4d22c118d4 Sean Wang 2021-01-28 1351 return;
163f4d22c118d4 Sean Wang 2021-01-28 1352 }
163f4d22c118d4 Sean Wang 2021-01-28 1353
163f4d22c118d4 Sean Wang 2021-01-28 1354 dev = container_of(mdev, struct mt7921_dev, mt76);
163f4d22c118d4 Sean Wang 2021-01-28 1355
163f4d22c118d4 Sean Wang 2021-01-28 1356 /* error path */
163f4d22c118d4 Sean Wang 2021-01-28 1357 if (e->skb == DMA_DUMMY_DATA) {
163f4d22c118d4 Sean Wang 2021-01-28 1358 struct mt76_txwi_cache *t;
163f4d22c118d4 Sean Wang 2021-01-28 1359 struct mt7921_txp_common *txp;
163f4d22c118d4 Sean Wang 2021-01-28 1360 u16 token;
163f4d22c118d4 Sean Wang 2021-01-28 1361
163f4d22c118d4 Sean Wang 2021-01-28 1362 txp = mt7921_txwi_to_txp(mdev, e->txwi);
163f4d22c118d4 Sean Wang 2021-01-28 1363 token = le16_to_cpu(txp->hw.msdu_id[0]) & ~MT_MSDU_ID_VALID;
d089692bc7938a Lorenzo Bianconi 2021-04-20 1364 t = mt76_token_put(mdev, token);
163f4d22c118d4 Sean Wang 2021-01-28 1365 e->skb = t ? t->skb : NULL;
163f4d22c118d4 Sean Wang 2021-01-28 1366 }
163f4d22c118d4 Sean Wang 2021-01-28 1367
6fab4ab4b0c101 Lorenzo Bianconi 2021-09-04 1368 if (e->skb)
6fab4ab4b0c101 Lorenzo Bianconi 2021-09-04 1369 mt76_tx_complete_skb(mdev, e->wcid, e->skb);
163f4d22c118d4 Sean Wang 2021-01-28 1370 }
163f4d22c118d4 Sean Wang 2021-01-28 1371
:::::: The code at line 1347 was first introduced by commit
:::::: 163f4d22c118d4eb9e275bf9ee1577c0d14b3208 mt76: mt7921: add MAC support
:::::: TO: Sean Wang <sean.wang@mediatek.com>
:::::: CC: Felix Fietkau <nbd@nbd.name>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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