From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: multipart/mixed; boundary="===============7446159729953640979==" MIME-Version: 1.0 From: kernel test robot Subject: drivers/net/ethernet/smsc/smc91x.c:2128 smc_request_attrib() warn: should '(64 * 1024) << (lp->io_shift)' be a 64 bit type? Date: Sun, 13 Feb 2022 02:17:13 +0800 Message-ID: <202202122203.55RvxnRa-lkp@intel.com> List-Id: To: kbuild@lists.01.org --===============7446159729953640979== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable CC: kbuild-all(a)lists.01.org CC: linux-kernel(a)vger.kernel.org TO: Masahiro Yamada CC: Andrew Morton CC: Linux Memory Management List Hi Masahiro, First bad commit (maybe !=3D root cause): tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git = master head: 83e396641110663d3c7bb25b9bc0c6a750359ecf commit: ea29b20a828511de3348334e529a3d046a180416 init/Kconfig: make COMPILE= _TEST depend on HAS_IOMEM date: 11 months ago :::::: branch date: 17 hours ago :::::: commit date: 11 months ago config: s390-randconfig-m031-20220212 (https://download.01.org/0day-ci/arch= ive/20220212/202202122203.55RvxnRa-lkp(a)intel.com/config) compiler: s390-linux-gcc (GCC) 11.2.0 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot Reported-by: Dan Carpenter New smatch warnings: drivers/net/ethernet/smsc/smc91x.c:2128 smc_request_attrib() warn: should '= (64 * 1024) << (lp->io_shift)' be a 64 bit type? drivers/net/ethernet/smsc/smc91x.c:2141 smc_release_attrib() warn: should '= (64 * 1024) << (lp->io_shift)' be a 64 bit type? drivers/net/ethernet/smsc/smc91x.c:2344 smc_drv_probe() warn: should '16 <<= (lp->io_shift)' be a 64 bit type? drivers/net/ethernet/smsc/smc91x.c:2434 smc_drv_remove() warn: should '16 <= < (lp->io_shift)' be a 64 bit type? Old smatch warnings: drivers/net/ethernet/smsc/smc91x.c:2403 smc_drv_probe() warn: should '16 <<= (lp->io_shift)' be a 64 bit type? vim +2128 drivers/net/ethernet/smsc/smc91x.c ^1da177e4c3f41 drivers/net/smc91x.c Linus Torvalds 2005-04-16 2118 = 159198862adad7 drivers/net/smc91x.c Eric Miao 2008-06-24 2119 stati= c int smc_request_attrib(struct platform_device *pdev, 159198862adad7 drivers/net/smc91x.c Eric Miao 2008-06-24 2120 = struct net_device *ndev) ^1da177e4c3f41 drivers/net/smc91x.c Linus Torvalds 2005-04-16 2121 { ^1da177e4c3f41 drivers/net/smc91x.c Linus Torvalds 2005-04-16 2122 stru= ct resource * res =3D platform_get_resource_byname(pdev, IORESOURCE_MEM, "s= mc91x-attrib"); 55c8eb6c8eaa50 drivers/net/smc91x.c David S. Miller 2008-11-03 2123 stru= ct smc_local *lp __maybe_unused =3D netdev_priv(ndev); ^1da177e4c3f41 drivers/net/smc91x.c Linus Torvalds 2005-04-16 2124 = ^1da177e4c3f41 drivers/net/smc91x.c Linus Torvalds 2005-04-16 2125 if (= !res) ^1da177e4c3f41 drivers/net/smc91x.c Linus Torvalds 2005-04-16 2126 ret= urn 0; ^1da177e4c3f41 drivers/net/smc91x.c Linus Torvalds 2005-04-16 2127 = ^1da177e4c3f41 drivers/net/smc91x.c Linus Torvalds 2005-04-16 @2128 if (= !request_mem_region(res->start, ATTRIB_SIZE, CARDNAME)) ^1da177e4c3f41 drivers/net/smc91x.c Linus Torvalds 2005-04-16 2129 ret= urn -EBUSY; ^1da177e4c3f41 drivers/net/smc91x.c Linus Torvalds 2005-04-16 2130 = ^1da177e4c3f41 drivers/net/smc91x.c Linus Torvalds 2005-04-16 2131 retu= rn 0; ^1da177e4c3f41 drivers/net/smc91x.c Linus Torvalds 2005-04-16 2132 } ^1da177e4c3f41 drivers/net/smc91x.c Linus Torvalds 2005-04-16 2133 = 159198862adad7 drivers/net/smc91x.c Eric Miao 2008-06-24 2134 stati= c void smc_release_attrib(struct platform_device *pdev, 159198862adad7 drivers/net/smc91x.c Eric Miao 2008-06-24 2135 = struct net_device *ndev) ^1da177e4c3f41 drivers/net/smc91x.c Linus Torvalds 2005-04-16 2136 { ^1da177e4c3f41 drivers/net/smc91x.c Linus Torvalds 2005-04-16 2137 stru= ct resource * res =3D platform_get_resource_byname(pdev, IORESOURCE_MEM, "s= mc91x-attrib"); 55c8eb6c8eaa50 drivers/net/smc91x.c David S. Miller 2008-11-03 2138 stru= ct smc_local *lp __maybe_unused =3D netdev_priv(ndev); ^1da177e4c3f41 drivers/net/smc91x.c Linus Torvalds 2005-04-16 2139 = ^1da177e4c3f41 drivers/net/smc91x.c Linus Torvalds 2005-04-16 2140 if (= res) ^1da177e4c3f41 drivers/net/smc91x.c Linus Torvalds 2005-04-16 @2141 rel= ease_mem_region(res->start, ATTRIB_SIZE); ^1da177e4c3f41 drivers/net/smc91x.c Linus Torvalds 2005-04-16 2142 } ^1da177e4c3f41 drivers/net/smc91x.c Linus Torvalds 2005-04-16 2143 = :::::: The code at line 2128 was first introduced by commit :::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2 :::::: TO: Linus Torvalds :::::: CC: Linus Torvalds --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org --===============7446159729953640979==--