drivers/net/wireless/mediatek/mt76/mt7915/mcu.c:2393:5: warning: no previous prototype for function 'mt7915_mcu_set_fixed_rate'

From: kernel test robot
Date: Thu Nov 04 2021 - 21:29:27 EST

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: d4439a1189f93d0ac1eaf0197db8e6b3e197d5c7
commit: 9a93364d6595358a11d07e7f4261ae263ae2a02a mt76: mt7915: rework debugfs fixed-rate knob
date: 13 days ago
config: arm-randconfig-r025-20211105 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 847a6807332b13f43704327c2d30103ec0347c77)
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 arm cross compiling tool for clang build
# apt-get install binutils-arm-linux-gnueabi
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9a93364d6595358a11d07e7f4261ae263ae2a02a
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 9a93364d6595358a11d07e7f4261ae263ae2a02a
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=arm

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/mediatek/mt76/mt7915/mcu.c:2393:5: warning: no previous prototype for function 'mt7915_mcu_set_fixed_rate' [-Wmissing-prototypes]
int mt7915_mcu_set_fixed_rate(struct mt7915_dev *dev,
^
drivers/net/wireless/mediatek/mt76/mt7915/mcu.c:2393:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
int mt7915_mcu_set_fixed_rate(struct mt7915_dev *dev,
^
static
1 warning generated.


vim +/mt7915_mcu_set_fixed_rate +2393 drivers/net/wireless/mediatek/mt76/mt7915/mcu.c

e57b7901469fc0 Ryder Lee 2020-04-25 2392
9fac3c81eebd81 Ryder Lee 2020-04-25 @2393 int mt7915_mcu_set_fixed_rate(struct mt7915_dev *dev,
9fac3c81eebd81 Ryder Lee 2020-04-25 2394 struct ieee80211_sta *sta, u32 rate)
9fac3c81eebd81 Ryder Lee 2020-04-25 2395 {
9fac3c81eebd81 Ryder Lee 2020-04-25 2396 struct mt7915_sta *msta = (struct mt7915_sta *)sta->drv_priv;
9fac3c81eebd81 Ryder Lee 2020-04-25 2397 struct mt7915_vif *mvif = msta->vif;
9fac3c81eebd81 Ryder Lee 2020-04-25 2398 struct sta_rec_ra_fixed *ra;
9fac3c81eebd81 Ryder Lee 2020-04-25 2399 struct sk_buff *skb;
9fac3c81eebd81 Ryder Lee 2020-04-25 2400 struct tlv *tlv;
3e68af622254ba Ryder Lee 2020-05-12 2401 int len = sizeof(struct sta_req_hdr) + sizeof(*ra);
9fac3c81eebd81 Ryder Lee 2020-04-25 2402
3e68af622254ba Ryder Lee 2020-05-12 2403 skb = mt7915_mcu_alloc_sta_req(dev, mvif, msta, len);
9fac3c81eebd81 Ryder Lee 2020-04-25 2404 if (IS_ERR(skb))
9fac3c81eebd81 Ryder Lee 2020-04-25 2405 return PTR_ERR(skb);
9fac3c81eebd81 Ryder Lee 2020-04-25 2406
9fac3c81eebd81 Ryder Lee 2020-04-25 2407 tlv = mt7915_mcu_add_tlv(skb, STA_REC_RA_UPDATE, sizeof(*ra));
9fac3c81eebd81 Ryder Lee 2020-04-25 2408 ra = (struct sta_rec_ra_fixed *)tlv;
9fac3c81eebd81 Ryder Lee 2020-04-25 2409
9fac3c81eebd81 Ryder Lee 2020-04-25 2410 if (!rate) {
9fac3c81eebd81 Ryder Lee 2020-04-25 2411 ra->field = cpu_to_le32(RATE_PARAM_AUTO);
9fac3c81eebd81 Ryder Lee 2020-04-25 2412 goto out;
9fac3c81eebd81 Ryder Lee 2020-04-25 2413 }
9fac3c81eebd81 Ryder Lee 2020-04-25 2414
4d2423326de9e9 Ryder Lee 2021-08-07 2415 ra->field = cpu_to_le32(RATE_PARAM_FIXED);
9fac3c81eebd81 Ryder Lee 2020-04-25 2416 ra->phy.type = FIELD_GET(RATE_CFG_PHY_TYPE, rate);
9fac3c81eebd81 Ryder Lee 2020-04-25 2417 ra->phy.bw = FIELD_GET(RATE_CFG_BW, rate);
9fac3c81eebd81 Ryder Lee 2020-04-25 2418 ra->phy.nss = FIELD_GET(RATE_CFG_NSS, rate);
9fac3c81eebd81 Ryder Lee 2020-04-25 2419 ra->phy.mcs = FIELD_GET(RATE_CFG_MCS, rate);
9fac3c81eebd81 Ryder Lee 2020-04-25 2420 ra->phy.stbc = FIELD_GET(RATE_CFG_STBC, rate);
9fac3c81eebd81 Ryder Lee 2020-04-25 2421
9fac3c81eebd81 Ryder Lee 2020-04-25 2422 if (ra->phy.bw)
9fac3c81eebd81 Ryder Lee 2020-04-25 2423 ra->phy.ldpc = 7;
9fac3c81eebd81 Ryder Lee 2020-04-25 2424 else
9fac3c81eebd81 Ryder Lee 2020-04-25 2425 ra->phy.ldpc = FIELD_GET(RATE_CFG_LDPC, rate) * 7;
9fac3c81eebd81 Ryder Lee 2020-04-25 2426
9fac3c81eebd81 Ryder Lee 2020-04-25 2427 /* HT/VHT - SGI: 1, LGI: 0; HE - SGI: 0, MGI: 1, LGI: 2 */
4d2423326de9e9 Ryder Lee 2021-08-07 2428 if (ra->phy.type > MT_PHY_TYPE_VHT) {
4d2423326de9e9 Ryder Lee 2021-08-07 2429 ra->phy.he_ltf = FIELD_GET(RATE_CFG_HE_LTF, rate) * 85;
4d2423326de9e9 Ryder Lee 2021-08-07 2430 ra->phy.sgi = FIELD_GET(RATE_CFG_GI, rate) * 85;
4d2423326de9e9 Ryder Lee 2021-08-07 2431 } else {
4d2423326de9e9 Ryder Lee 2021-08-07 2432 ra->phy.sgi = FIELD_GET(RATE_CFG_GI, rate) * 15;
4d2423326de9e9 Ryder Lee 2021-08-07 2433 }
9fac3c81eebd81 Ryder Lee 2020-04-25 2434
9fac3c81eebd81 Ryder Lee 2020-04-25 2435 out:
fa62d0e0080bca Felix Fietkau 2020-09-30 2436 return mt76_mcu_skb_send_msg(&dev->mt76, skb,
c203dd62178084 Felix Fietkau 2021-01-06 2437 MCU_EXT_CMD(STA_REC_UPDATE), true);
9fac3c81eebd81 Ryder Lee 2020-04-25 2438 }
9fac3c81eebd81 Ryder Lee 2020-04-25 2439

:::::: The code at line 2393 was first introduced by commit
:::::: 9fac3c81eebd81bbce8b050e15b03d3490841717 mt76: mt7915: set peer Tx fixed rate through debugfs

:::::: TO: Ryder Lee <ryder.lee@xxxxxxxxxxxx>
:::::: CC: Felix Fietkau <nbd@xxxxxxxx>

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

Attachment: .config.gz
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