Hi Iyappan, [auto build test WARNING on net-next/master]
url: https://github.com/0day-ci/linux/commits/Iyappan-Subramanian/drivers-net-xgene-v2-Add-RGMII-based-1G-driver/20170201-034317 config: parisc-allyesconfig (attached as .config) compiler: hppa-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705 reproduce: wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=parisc All warnings (new ones prefixed by >>): In file included from include/linux/swab.h:4:0, from include/uapi/linux/byteorder/big_endian.h:12, from include/linux/byteorder/big_endian.h:4, from arch/parisc/include/uapi/asm/byteorder.h:4, from arch/parisc/include/asm/bitops.h:10, from include/linux/bitops.h:36, from include/linux/kernel.h:10, from include/linux/list.h:8, from include/linux/resource_ext.h:17, from include/linux/acpi.h:26, from drivers/net/ethernet/apm/xgene-v2/main.h:25, from drivers/net/ethernet/apm/xgene-v2/main.c:22: drivers/net/ethernet/apm/xgene-v2/main.c: In function 'xge_refill_buffers': drivers/net/ethernet/apm/xgene-v2/main.c:162:20: warning: right shift count >= width of type [-Wshift-count-overflow] dma_addr >> PKT_ADDRL_LEN)); ^ include/uapi/linux/swab.h:129:32: note: in definition of macro '__swab64' (__builtin_constant_p((__u64)(x)) ? \ ^ >> include/linux/byteorder/generic.h:85:21: note: in expansion of macro >> '__cpu_to_le64' #define cpu_to_le64 __cpu_to_le64 ^~~~~~~~~~~~~ drivers/net/ethernet/apm/xgene-v2/main.c:161:9: note: in expansion of macro 'SET_BITS' SET_BITS(PKT_ADDRH, ^~~~~~~~ drivers/net/ethernet/apm/xgene-v2/main.c:162:20: warning: right shift count >= width of type [-Wshift-count-overflow] dma_addr >> PKT_ADDRL_LEN)); ^ include/uapi/linux/swab.h:131:12: note: in definition of macro '__swab64' __fswab64(x)) ^ >> include/linux/byteorder/generic.h:85:21: note: in expansion of macro >> '__cpu_to_le64' #define cpu_to_le64 __cpu_to_le64 ^~~~~~~~~~~~~ drivers/net/ethernet/apm/xgene-v2/main.c:161:9: note: in expansion of macro 'SET_BITS' SET_BITS(PKT_ADDRH, ^~~~~~~~ drivers/net/ethernet/apm/xgene-v2/main.c: In function 'xge_start_xmit': drivers/net/ethernet/apm/xgene-v2/main.c:346:19: warning: right shift count >= width of type [-Wshift-count-overflow] dma_addr >> PKT_ADDRL_LEN)); ^ include/uapi/linux/swab.h:129:32: note: in definition of macro '__swab64' (__builtin_constant_p((__u64)(x)) ? \ ^ >> include/linux/byteorder/generic.h:85:21: note: in expansion of macro >> '__cpu_to_le64' #define cpu_to_le64 __cpu_to_le64 ^~~~~~~~~~~~~ drivers/net/ethernet/apm/xgene-v2/main.c:345:8: note: in expansion of macro 'SET_BITS' SET_BITS(PKT_ADDRH, ^~~~~~~~ drivers/net/ethernet/apm/xgene-v2/main.c:346:19: warning: right shift count >= width of type [-Wshift-count-overflow] dma_addr >> PKT_ADDRL_LEN)); ^ include/uapi/linux/swab.h:131:12: note: in definition of macro '__swab64' __fswab64(x)) ^ >> include/linux/byteorder/generic.h:85:21: note: in expansion of macro >> '__cpu_to_le64' #define cpu_to_le64 __cpu_to_le64 ^~~~~~~~~~~~~ drivers/net/ethernet/apm/xgene-v2/main.c:345:8: note: in expansion of macro 'SET_BITS' SET_BITS(PKT_ADDRH, ^~~~~~~~ drivers/net/ethernet/apm/xgene-v2/main.c: In function 'xge_rx_poll': drivers/net/ethernet/apm/xgene-v2/main.c:453:23: warning: left shift count >= width of type [-Wshift-count-overflow] dma_addr = (addr_hi << PKT_ADDRL_LEN) | addr_lo; ^~ vim +/__cpu_to_le64 +85 include/linux/byteorder/generic.h ^1da177e Linus Torvalds 2005-04-16 69 * cpu_to_[bl]eXX(__uXX x) ^1da177e Linus Torvalds 2005-04-16 70 * [bl]eXX_to_cpu(__uXX x) ^1da177e Linus Torvalds 2005-04-16 71 * ^1da177e Linus Torvalds 2005-04-16 72 * The same, but takes a pointer to the value to convert ^1da177e Linus Torvalds 2005-04-16 73 * cpu_to_[bl]eXXp(__uXX x) ^1da177e Linus Torvalds 2005-04-16 74 * [bl]eXX_to_cpup(__uXX x) ^1da177e Linus Torvalds 2005-04-16 75 * ^1da177e Linus Torvalds 2005-04-16 76 * The same, but change in situ ^1da177e Linus Torvalds 2005-04-16 77 * cpu_to_[bl]eXXs(__uXX x) ^1da177e Linus Torvalds 2005-04-16 78 * [bl]eXX_to_cpus(__uXX x) ^1da177e Linus Torvalds 2005-04-16 79 * ^1da177e Linus Torvalds 2005-04-16 80 * See asm-foo/byteorder.h for examples of how to provide ^1da177e Linus Torvalds 2005-04-16 81 * architecture-optimized versions ^1da177e Linus Torvalds 2005-04-16 82 * ^1da177e Linus Torvalds 2005-04-16 83 */ ^1da177e Linus Torvalds 2005-04-16 84 ^1da177e Linus Torvalds 2005-04-16 @85 #define cpu_to_le64 __cpu_to_le64 ^1da177e Linus Torvalds 2005-04-16 86 #define le64_to_cpu __le64_to_cpu ^1da177e Linus Torvalds 2005-04-16 87 #define cpu_to_le32 __cpu_to_le32 ^1da177e Linus Torvalds 2005-04-16 88 #define le32_to_cpu __le32_to_cpu ^1da177e Linus Torvalds 2005-04-16 89 #define cpu_to_le16 __cpu_to_le16 ^1da177e Linus Torvalds 2005-04-16 90 #define le16_to_cpu __le16_to_cpu ^1da177e Linus Torvalds 2005-04-16 91 #define cpu_to_be64 __cpu_to_be64 ^1da177e Linus Torvalds 2005-04-16 92 #define be64_to_cpu __be64_to_cpu ^1da177e Linus Torvalds 2005-04-16 93 #define cpu_to_be32 __cpu_to_be32 :::::: The code at line 85 was first introduced by commit :::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2 :::::: TO: Linus Torvalds <torva...@ppc970.osdl.org> :::::: CC: Linus Torvalds <torva...@ppc970.osdl.org> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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