linux-kernel - [nbd168-wireless:mt76 18/26] drivers/net/wireless/mediatek/mt76/mt7915/mac.c:258:28: sparse: sparse: cast from restricted _

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <202107150332.D146EvT3-lkp@intel.com>
Date:   Thu, 15 Jul 2021 03:04:37 +0800
From:   kernel test robot <lkp@...el.com>
To:     Ryder Lee <ryder.lee@...iatek.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Felix Fietkau <nbd@....name>
Subject: [nbd168-wireless:mt76 18/26]
 drivers/net/wireless/mediatek/mt76/mt7915/mac.c:258:28: sparse: sparse: cast
 from restricted __le32

tree:   https://github.com/nbd168/wireless mt76
head:   322ec254cac2f270cd917c5e6bdf8c838ee0a2fc
commit: 895377eb178d757c0fdfdee78023b61b66689a05 [18/26] mt76: mt7915: report HE MU radiotap
config: i386-randconfig-s002-20210714 (attached as .config)
compiler: gcc-10 (Debian 10.2.1-6) 10.2.1 20210110
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.3-341-g8af24329-dirty
        # https://github.com/nbd168/wireless/commit/895377eb178d757c0fdfdee78023b61b66689a05
        git remote add nbd168-wireless https://github.com/nbd168/wireless
        git fetch --no-tags nbd168-wireless mt76
        git checkout 895377eb178d757c0fdfdee78023b61b66689a05
        # save the attached .config to linux build tree
        make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=i386 SHELL=/bin/bash drivers/net/wireless/mediatek/mt76/mt7915/

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


sparse warnings: (new ones prefixed by >>)
>> drivers/net/wireless/mediatek/mt76/mt7915/mac.c:258:28: sparse: sparse: cast from restricted __le32
   drivers/net/wireless/mediatek/mt76/mt7915/mac.c:258:28: sparse: sparse: cast to restricted __le32
   drivers/net/wireless/mediatek/mt76/mt7915/mac.c:258:28: sparse: sparse: restricted __le32 degrades to integer
>> drivers/net/wireless/mediatek/mt76/mt7915/mac.c:258:28: sparse: sparse: cast from restricted __le32
   drivers/net/wireless/mediatek/mt76/mt7915/mac.c:258:28: sparse: sparse: restricted __le32 degrades to integer
   drivers/net/wireless/mediatek/mt76/mt7915/mac.c:263:25: sparse: sparse: cast from restricted __le32
   drivers/net/wireless/mediatek/mt76/mt7915/mac.c:263:25: sparse: sparse: cast to restricted __le32
   drivers/net/wireless/mediatek/mt76/mt7915/mac.c:263:25: sparse: sparse: restricted __le32 degrades to integer
   drivers/net/wireless/mediatek/mt76/mt7915/mac.c:263:25: sparse: sparse: cast from restricted __le32
   drivers/net/wireless/mediatek/mt76/mt7915/mac.c:263:25: sparse: sparse: restricted __le32 degrades to integer
   drivers/net/wireless/mediatek/mt76/mt7915/mac.c:268:25: sparse: sparse: cast from restricted __le32
   drivers/net/wireless/mediatek/mt76/mt7915/mac.c:268:25: sparse: sparse: cast to restricted __le32
   drivers/net/wireless/mediatek/mt76/mt7915/mac.c:268:25: sparse: sparse: restricted __le32 degrades to integer
   drivers/net/wireless/mediatek/mt76/mt7915/mac.c:268:25: sparse: sparse: cast from restricted __le32
   drivers/net/wireless/mediatek/mt76/mt7915/mac.c:268:25: sparse: sparse: restricted __le32 degrades to integer
   drivers/net/wireless/mediatek/mt76/mt7915/mac.c:270:25: sparse: sparse: cast from restricted __le32
   drivers/net/wireless/mediatek/mt76/mt7915/mac.c:270:25: sparse: sparse: cast to restricted __le32
   drivers/net/wireless/mediatek/mt76/mt7915/mac.c:270:25: sparse: sparse: restricted __le32 degrades to integer
   drivers/net/wireless/mediatek/mt76/mt7915/mac.c:270:25: sparse: sparse: cast from restricted __le32
   drivers/net/wireless/mediatek/mt76/mt7915/mac.c:270:25: sparse: sparse: restricted __le32 degrades to integer
   drivers/net/wireless/mediatek/mt76/mt7915/mac.c:305:13: sparse: sparse: cast from restricted __le32
   drivers/net/wireless/mediatek/mt76/mt7915/mac.c:305:13: sparse: sparse: restricted __le32 degrades to integer

vim +258 drivers/net/wireless/mediatek/mt76/mt7915/mac.c

   249	
   250		he_mu->flags1 |= MU_PREP(FLAGS1_SIG_B_MCS, status->rate_idx);
   251		if (status->he_dcm)
   252			he_mu->flags1 |= MU_PREP(FLAGS1_SIG_B_DCM, status->he_dcm);
   253	
   254		he_mu->flags2 |= MU_PREP(FLAGS2_BW_FROM_SIG_A_BW, status->bw) |
   255				 MU_PREP(FLAGS2_SIG_B_SYMS_USERS,
   256					 le32_get_bits(rxv[2], MT_CRXV_HE_NUM_USER));
   257	
 > 258		he_mu->ru_ch1[0] = FIELD_GET(MT_CRXV_HE_RU0, cpu_to_le32(rxv[3]));
   259	
   260		if (status->bw >= RATE_INFO_BW_40) {
   261			he_mu->flags1 |= HE_BITS(MU_FLAGS1_CH2_RU_KNOWN);
   262			he_mu->ru_ch2[0] =
   263				FIELD_GET(MT_CRXV_HE_RU1, cpu_to_le32(rxv[3]));
   264		}
   265	
   266		if (status->bw >= RATE_INFO_BW_80) {
   267			he_mu->ru_ch1[1] =
   268				FIELD_GET(MT_CRXV_HE_RU2, cpu_to_le32(rxv[3]));
   269			he_mu->ru_ch2[1] =
   270				FIELD_GET(MT_CRXV_HE_RU3, cpu_to_le32(rxv[3]));
   271		}
   272	}
   273	

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

Download attachment ".config.gz" of type "application/gzip" (46860 bytes)