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Sat, 12 Mar 2022 08:04:15 +0000 Date: Sat, 12 Mar 2022 16:03:32 +0800 From: kernel test robot To: Subbaraya Sundeep Cc: kbuild-all@lists.01.org, linux-kernel@vger.kernel.org, Geetha sowjanya , Sunil Goutham Subject: drivers/net/ethernet/marvell/octeontx2/af/rvu.c:1964:46: sparse: sparse: cast removes address space '__iomem' of expression Message-ID: <202203121536.7EHHGIrm-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.10.1 (2018-07-13) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 68453767131a5deec1e8f9ac92a9042f929e585d commit: 98c5611163603d3d8012b1bf64ab48fd932cf734 octeontx2-af: cn10k: Add mbox support for CN10K platform date: 1 year, 1 month ago config: arm64-allmodconfig (https://download.01.org/0day-ci/archive/20220312/202203121536.7EHHGIrm-lkp@intel.com/config) compiler: aarch64-linux-gcc (GCC) 11.2.0 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: v0.6.4-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=98c5611163603d3d8012b1bf64ab48fd932cf734 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 98c5611163603d3d8012b1bf64ab48fd932cf734 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=arm64 SHELL=/bin/bash drivers/gpu/drm/tegra/ drivers/gpu/host1x/ drivers/hid/ drivers/irqchip/ drivers/net/ethernet/marvell/octeontx2/af/ drivers/net/ethernet/ti/ drivers/remoteproc/ drivers/scsi/hisi_sas/ security/integrity/ima/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot sparse warnings: (new ones prefixed by >>) drivers/net/ethernet/marvell/octeontx2/af/rvu.c:780:21: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct rvu_fwdata *fwdata @@ got void [noderef] __iomem * @@ drivers/net/ethernet/marvell/octeontx2/af/rvu.c:780:21: sparse: expected struct rvu_fwdata *fwdata drivers/net/ethernet/marvell/octeontx2/af/rvu.c:780:21: sparse: got void [noderef] __iomem * drivers/net/ethernet/marvell/octeontx2/af/rvu.c:786:28: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got struct rvu_fwdata *fwdata @@ drivers/net/ethernet/marvell/octeontx2/af/rvu.c:786:28: sparse: expected void volatile [noderef] __iomem *addr drivers/net/ethernet/marvell/octeontx2/af/rvu.c:786:28: sparse: got struct rvu_fwdata *fwdata drivers/net/ethernet/marvell/octeontx2/af/rvu.c:799:28: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got struct rvu_fwdata *fwdata @@ drivers/net/ethernet/marvell/octeontx2/af/rvu.c:799:28: sparse: expected void volatile [noderef] __iomem *addr drivers/net/ethernet/marvell/octeontx2/af/rvu.c:799:28: sparse: got struct rvu_fwdata *fwdata >> drivers/net/ethernet/marvell/octeontx2/af/rvu.c:1964:46: sparse: sparse: cast removes address space '__iomem' of expression drivers/net/ethernet/marvell/octeontx2/af/rvu.c:1984:38: sparse: sparse: cast removes address space '__iomem' of expression vim +/__iomem +1964 drivers/net/ethernet/marvell/octeontx2/af/rvu.c 1941 1942 static int rvu_get_mbox_regions(struct rvu *rvu, void **mbox_addr, 1943 int num, int type) 1944 { 1945 struct rvu_hwinfo *hw = rvu->hw; 1946 int region; 1947 u64 bar4; 1948 1949 /* For cn10k platform VF mailbox regions of a PF follows after the 1950 * PF <-> AF mailbox region. Whereas for Octeontx2 it is read from 1951 * RVU_PF_VF_BAR4_ADDR register. 1952 */ 1953 if (type == TYPE_AFVF) { 1954 for (region = 0; region < num; region++) { 1955 if (hw->cap.per_pf_mbox_regs) { 1956 bar4 = rvu_read64(rvu, BLKADDR_RVUM, 1957 RVU_AF_PFX_BAR4_ADDR(0)) + 1958 MBOX_SIZE; 1959 bar4 += region * MBOX_SIZE; 1960 } else { 1961 bar4 = rvupf_read64(rvu, RVU_PF_VF_BAR4_ADDR); 1962 bar4 += region * MBOX_SIZE; 1963 } > 1964 mbox_addr[region] = (void *)ioremap_wc(bar4, MBOX_SIZE); 1965 if (!mbox_addr[region]) 1966 goto error; 1967 } 1968 return 0; 1969 } 1970 1971 /* For cn10k platform AF <-> PF mailbox region of a PF is read from per 1972 * PF registers. Whereas for Octeontx2 it is read from 1973 * RVU_AF_PF_BAR4_ADDR register. 1974 */ 1975 for (region = 0; region < num; region++) { 1976 if (hw->cap.per_pf_mbox_regs) { 1977 bar4 = rvu_read64(rvu, BLKADDR_RVUM, 1978 RVU_AF_PFX_BAR4_ADDR(region)); 1979 } else { 1980 bar4 = rvu_read64(rvu, BLKADDR_RVUM, 1981 RVU_AF_PF_BAR4_ADDR); 1982 bar4 += region * MBOX_SIZE; 1983 } 1984 mbox_addr[region] = (void *)ioremap_wc(bar4, MBOX_SIZE); 1985 if (!mbox_addr[region]) 1986 goto error; 1987 } 1988 return 0; 1989 1990 error: 1991 while (region--) 1992 iounmap((void __iomem *)mbox_addr[region]); 1993 return -ENOMEM; 1994 } 1995 --- 0-DAY CI Kernel Test Service https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org