Hi Andrew, First bad commit (maybe != root cause):
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 2c85ebc57b3e1817b6ce1a6b703928e113a90442 commit: a9770eac511ad82390b9f4a3c1728e078c387ac7 net: mdio: Move MDIO drivers into a new subdirectory date: 4 months ago config: openrisc-randconfig-s031-20201214 (attached as .config) compiler: or1k-linux-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.3-184-g1b896707-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a9770eac511ad82390b9f4a3c1728e078c387ac7 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout a9770eac511ad82390b9f4a3c1728e078c387ac7 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=openrisc If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <[email protected]> "sparse warnings: (new ones prefixed by >>)" >> drivers/net/mdio/mdio-mux-mmioreg.c:91:25: sparse: sparse: incorrect type in >> argument 1 (different address spaces) @@ expected void *addr @@ got >> void [noderef] __iomem *p @@ drivers/net/mdio/mdio-mux-mmioreg.c:91:25: sparse: expected void *addr drivers/net/mdio/mdio-mux-mmioreg.c:91:25: sparse: got void [noderef] __iomem *p vim +91 drivers/net/mdio/mdio-mux-mmioreg.c 6cc2ff82492d89f drivers/net/phy/mdio-mux-mmioreg.c Timur Tabi 2012-08-24 24 6cc2ff82492d89f drivers/net/phy/mdio-mux-mmioreg.c Timur Tabi 2012-08-24 25 /* 6cc2ff82492d89f drivers/net/phy/mdio-mux-mmioreg.c Timur Tabi 2012-08-24 26 * MDIO multiplexing switch function 6cc2ff82492d89f drivers/net/phy/mdio-mux-mmioreg.c Timur Tabi 2012-08-24 27 * 6cc2ff82492d89f drivers/net/phy/mdio-mux-mmioreg.c Timur Tabi 2012-08-24 28 * This function is called by the mdio-mux layer when it thinks the mdio bus 6cc2ff82492d89f drivers/net/phy/mdio-mux-mmioreg.c Timur Tabi 2012-08-24 29 * multiplexer needs to switch. 6cc2ff82492d89f drivers/net/phy/mdio-mux-mmioreg.c Timur Tabi 2012-08-24 30 * 6cc2ff82492d89f drivers/net/phy/mdio-mux-mmioreg.c Timur Tabi 2012-08-24 31 * 'current_child' is the current value of the mux register (masked via 6cc2ff82492d89f drivers/net/phy/mdio-mux-mmioreg.c Timur Tabi 2012-08-24 32 * s->mask). 6cc2ff82492d89f drivers/net/phy/mdio-mux-mmioreg.c Timur Tabi 2012-08-24 33 * 6cc2ff82492d89f drivers/net/phy/mdio-mux-mmioreg.c Timur Tabi 2012-08-24 34 * 'desired_child' is the value of the 'reg' property of the target child MDIO 6cc2ff82492d89f drivers/net/phy/mdio-mux-mmioreg.c Timur Tabi 2012-08-24 35 * node. 6cc2ff82492d89f drivers/net/phy/mdio-mux-mmioreg.c Timur Tabi 2012-08-24 36 * 6cc2ff82492d89f drivers/net/phy/mdio-mux-mmioreg.c Timur Tabi 2012-08-24 37 * The first time this function is called, current_child == -1. 6cc2ff82492d89f drivers/net/phy/mdio-mux-mmioreg.c Timur Tabi 2012-08-24 38 * 6cc2ff82492d89f drivers/net/phy/mdio-mux-mmioreg.c Timur Tabi 2012-08-24 39 * If current_child == desired_child, then the mux is already set to the 6cc2ff82492d89f drivers/net/phy/mdio-mux-mmioreg.c Timur Tabi 2012-08-24 40 * correct bus. 6cc2ff82492d89f drivers/net/phy/mdio-mux-mmioreg.c Timur Tabi 2012-08-24 41 */ 6cc2ff82492d89f drivers/net/phy/mdio-mux-mmioreg.c Timur Tabi 2012-08-24 42 static int mdio_mux_mmioreg_switch_fn(int current_child, int desired_child, 6cc2ff82492d89f drivers/net/phy/mdio-mux-mmioreg.c Timur Tabi 2012-08-24 43 void *data) 6cc2ff82492d89f drivers/net/phy/mdio-mux-mmioreg.c Timur Tabi 2012-08-24 44 { 6cc2ff82492d89f drivers/net/phy/mdio-mux-mmioreg.c Timur Tabi 2012-08-24 45 struct mdio_mux_mmioreg_state *s = data; 6cc2ff82492d89f drivers/net/phy/mdio-mux-mmioreg.c Timur Tabi 2012-08-24 46 6cc2ff82492d89f drivers/net/phy/mdio-mux-mmioreg.c Timur Tabi 2012-08-24 47 if (current_child ^ desired_child) { 9a4c803748250f3 drivers/net/phy/mdio-mux-mmioreg.c Neil Armstrong 2016-11-04 48 void __iomem *p = ioremap(s->phys, s->iosize); 6cc2ff82492d89f drivers/net/phy/mdio-mux-mmioreg.c Timur Tabi 2012-08-24 49 if (!p) 6cc2ff82492d89f drivers/net/phy/mdio-mux-mmioreg.c Timur Tabi 2012-08-24 50 return -ENOMEM; 6cc2ff82492d89f drivers/net/phy/mdio-mux-mmioreg.c Timur Tabi 2012-08-24 51 9a4c803748250f3 drivers/net/phy/mdio-mux-mmioreg.c Neil Armstrong 2016-11-04 52 switch (s->iosize) { 9a4c803748250f3 drivers/net/phy/mdio-mux-mmioreg.c Neil Armstrong 2016-11-04 53 case sizeof(uint8_t): { 9a4c803748250f3 drivers/net/phy/mdio-mux-mmioreg.c Neil Armstrong 2016-11-04 54 uint8_t x, y; 9a4c803748250f3 drivers/net/phy/mdio-mux-mmioreg.c Neil Armstrong 2016-11-04 55 6cc2ff82492d89f drivers/net/phy/mdio-mux-mmioreg.c Timur Tabi 2012-08-24 56 x = ioread8(p); 6cc2ff82492d89f drivers/net/phy/mdio-mux-mmioreg.c Timur Tabi 2012-08-24 57 y = (x & ~s->mask) | desired_child; 6cc2ff82492d89f drivers/net/phy/mdio-mux-mmioreg.c Timur Tabi 2012-08-24 58 if (x != y) { 6cc2ff82492d89f drivers/net/phy/mdio-mux-mmioreg.c Timur Tabi 2012-08-24 59 iowrite8((x & ~s->mask) | desired_child, p); 6cc2ff82492d89f drivers/net/phy/mdio-mux-mmioreg.c Timur Tabi 2012-08-24 60 pr_debug("%s: %02x -> %02x\n", __func__, x, y); 6cc2ff82492d89f drivers/net/phy/mdio-mux-mmioreg.c Timur Tabi 2012-08-24 61 } 6cc2ff82492d89f drivers/net/phy/mdio-mux-mmioreg.c Timur Tabi 2012-08-24 62 9a4c803748250f3 drivers/net/phy/mdio-mux-mmioreg.c Neil Armstrong 2016-11-04 63 break; 9a4c803748250f3 drivers/net/phy/mdio-mux-mmioreg.c Neil Armstrong 2016-11-04 64 } 9a4c803748250f3 drivers/net/phy/mdio-mux-mmioreg.c Neil Armstrong 2016-11-04 65 case sizeof(uint16_t): { 9a4c803748250f3 drivers/net/phy/mdio-mux-mmioreg.c Neil Armstrong 2016-11-04 66 uint16_t x, y; 9a4c803748250f3 drivers/net/phy/mdio-mux-mmioreg.c Neil Armstrong 2016-11-04 67 9a4c803748250f3 drivers/net/phy/mdio-mux-mmioreg.c Neil Armstrong 2016-11-04 68 x = ioread16(p); 9a4c803748250f3 drivers/net/phy/mdio-mux-mmioreg.c Neil Armstrong 2016-11-04 69 y = (x & ~s->mask) | desired_child; 9a4c803748250f3 drivers/net/phy/mdio-mux-mmioreg.c Neil Armstrong 2016-11-04 70 if (x != y) { 9a4c803748250f3 drivers/net/phy/mdio-mux-mmioreg.c Neil Armstrong 2016-11-04 71 iowrite16((x & ~s->mask) | desired_child, p); 9a4c803748250f3 drivers/net/phy/mdio-mux-mmioreg.c Neil Armstrong 2016-11-04 72 pr_debug("%s: %04x -> %04x\n", __func__, x, y); 9a4c803748250f3 drivers/net/phy/mdio-mux-mmioreg.c Neil Armstrong 2016-11-04 73 } 9a4c803748250f3 drivers/net/phy/mdio-mux-mmioreg.c Neil Armstrong 2016-11-04 74 9a4c803748250f3 drivers/net/phy/mdio-mux-mmioreg.c Neil Armstrong 2016-11-04 75 break; 9a4c803748250f3 drivers/net/phy/mdio-mux-mmioreg.c Neil Armstrong 2016-11-04 76 } 9a4c803748250f3 drivers/net/phy/mdio-mux-mmioreg.c Neil Armstrong 2016-11-04 77 case sizeof(uint32_t): { 9a4c803748250f3 drivers/net/phy/mdio-mux-mmioreg.c Neil Armstrong 2016-11-04 78 uint32_t x, y; 9a4c803748250f3 drivers/net/phy/mdio-mux-mmioreg.c Neil Armstrong 2016-11-04 79 9a4c803748250f3 drivers/net/phy/mdio-mux-mmioreg.c Neil Armstrong 2016-11-04 80 x = ioread32(p); 9a4c803748250f3 drivers/net/phy/mdio-mux-mmioreg.c Neil Armstrong 2016-11-04 81 y = (x & ~s->mask) | desired_child; 9a4c803748250f3 drivers/net/phy/mdio-mux-mmioreg.c Neil Armstrong 2016-11-04 82 if (x != y) { 9a4c803748250f3 drivers/net/phy/mdio-mux-mmioreg.c Neil Armstrong 2016-11-04 83 iowrite32((x & ~s->mask) | desired_child, p); 9a4c803748250f3 drivers/net/phy/mdio-mux-mmioreg.c Neil Armstrong 2016-11-04 84 pr_debug("%s: %08x -> %08x\n", __func__, x, y); 9a4c803748250f3 drivers/net/phy/mdio-mux-mmioreg.c Neil Armstrong 2016-11-04 85 } 9a4c803748250f3 drivers/net/phy/mdio-mux-mmioreg.c Neil Armstrong 2016-11-04 86 9a4c803748250f3 drivers/net/phy/mdio-mux-mmioreg.c Neil Armstrong 2016-11-04 87 break; 9a4c803748250f3 drivers/net/phy/mdio-mux-mmioreg.c Neil Armstrong 2016-11-04 88 } 9a4c803748250f3 drivers/net/phy/mdio-mux-mmioreg.c Neil Armstrong 2016-11-04 89 } 9a4c803748250f3 drivers/net/phy/mdio-mux-mmioreg.c Neil Armstrong 2016-11-04 90 6cc2ff82492d89f drivers/net/phy/mdio-mux-mmioreg.c Timur Tabi 2012-08-24 @91 iounmap(p); 6cc2ff82492d89f drivers/net/phy/mdio-mux-mmioreg.c Timur Tabi 2012-08-24 92 } 6cc2ff82492d89f drivers/net/phy/mdio-mux-mmioreg.c Timur Tabi 2012-08-24 93 6cc2ff82492d89f drivers/net/phy/mdio-mux-mmioreg.c Timur Tabi 2012-08-24 94 return 0; 6cc2ff82492d89f drivers/net/phy/mdio-mux-mmioreg.c Timur Tabi 2012-08-24 95 } 6cc2ff82492d89f drivers/net/phy/mdio-mux-mmioreg.c Timur Tabi 2012-08-24 96 :::::: The code at line 91 was first introduced by commit :::::: 6cc2ff82492d89f763e69ea6b8681926aceda610 netdev/phy: add MDIO bus multiplexer driven by a memory-mapped device :::::: TO: Timur Tabi <[email protected]> :::::: CC: David S. Miller <[email protected]> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/[email protected]
.config.gz
Description: application/gzip
