tree: https://git.kernel.org/pub/scm/linux/kernel/git/soc/soc.git broadcom/drivers head: 8b8f095b9076ca61107c0910c9273afd1dfa1f04 commit: 8bcac4011ebe0dbdd46fd55b036ee855c95702d3 [2/4] soc: bcm: add PM driver for Broadcom's PMB config: i386-randconfig-s002-20210211 (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.3-215-g0fb77bb6-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/soc/soc.git/commit/?id=8b... git remote add soc https://git.kernel.org/pub/scm/linux/kernel/git/soc/soc.git git fetch --no-tags soc broadcom/drivers git checkout 8bcac4011ebe0dbdd46fd55b036ee855c95702d3 # save the attached .config to linux build tree make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=i386 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; "sparse warnings: (new ones prefixed by >>)" drivers/soc/bcm/bcm63xx/bcm-pmb.c:103:65: sparse: sparse: cast to restricted __be32 drivers/soc/bcm/bcm63xx/bcm-pmb.c:103:65: sparse: sparse: cast to restricted __be32 drivers/soc/bcm/bcm63xx/bcm-pmb.c:103:65: sparse: sparse: cast to restricted __be32 drivers/soc/bcm/bcm63xx/bcm-pmb.c:103:65: sparse: sparse: cast to restricted __be32 drivers/soc/bcm/bcm63xx/bcm-pmb.c:103:65: sparse: sparse: cast to restricted __be32 drivers/soc/bcm/bcm63xx/bcm-pmb.c:103:65: sparse: sparse: cast to restricted __be32 drivers/soc/bcm/bcm63xx/bcm-pmb.c:115:55: sparse: sparse: restricted __be32 degrades to integer vim +103 drivers/soc/bcm/bcm63xx/bcm-pmb.c 90 91 static int bcm_pmb_bpcm_read(struct bcm_pmb *pmb, int bus, u8 device, 92 int offset, u32 *val) 93 { 94 void __iomem *base = pmb->base + bus * 0x20; 95 unsigned long flags; 96 int err; 97 98 spin_lock_irqsave(&pmb->lock, flags); 99 err = bpcm_rd(base, device, offset, val); 100 spin_unlock_irqrestore(&pmb->lock, flags); 101 102 if (!err) 104 105 return err; 106 } 107 108 static int bcm_pmb_bpcm_write(struct bcm_pmb *pmb, int bus, u8 device, 109 int offset, u32 val) 110 { 111 void __iomem *base = pmb->base + bus * 0x20; 112 unsigned long flags; 113 int err; 114 116 117 spin_lock_irqsave(&pmb->lock, flags); 118 err = bpcm_wr(base, device, offset, val); 119 spin_unlock_irqrestore(&pmb->lock, flags); 120 121 return err; 122 } 123 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org