[kbuild-all] drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c:122:31: warning: shift count >= width of type

Hi Léo, First bad commit (maybe != root cause): tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 1d94330a437a573cfdf848f6743b1ed169242c8a commit: 9b22fece786ed641909988da4810bfa8e5d2e592 atlantic: remove architecture depends date: 3 weeks ago config: mips-randconfig-r011-20210116 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project d7bc3b7ce23b664d6620cdc32370a8614523ca2f) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install mips cross compiling tool for clang build # apt-get install binutils-mips-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit... git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 9b22fece786ed641909988da4810bfa8e5d2e592 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=mips If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): In file included from drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c:13: In file included from drivers/net/ethernet/aquantia/atlantic/aq_main.h:12: In file included from drivers/net/ethernet/aquantia/atlantic/aq_common.h:13: In file included from include/linux/etherdevice.h:20: In file included from include/linux/if_ether.h:19: In file included from include/linux/skbuff.h:28: In file included from include/net/checksum.h:22: arch/mips/include/asm/checksum.h:161:9: error: unsupported inline asm: input with type 'unsigned long' matching output with type '__wsum' (aka 'unsigned int') : "0" ((__force unsigned long)daddr), ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); ^~~~~~~~~~~~~~~~ include/linux/dma-mapping.h:76:54: note: expanded from macro 'DMA_BIT_MASK' #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL<<(n))-1)) ^ ~~~ drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c:124:43: warning: shift count >= width of type [-Wshift-count-overflow] err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)); ^~~~~~~~~~~~~~~~ include/linux/dma-mapping.h:76:54: note: expanded from macro 'DMA_BIT_MASK' #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL<<(n))-1)) ^ ~~~ 2 warnings and 1 error generated. -- In file included from drivers/net/ethernet/aquantia/atlantic/aq_ring.c:10: In file included from drivers/net/ethernet/aquantia/atlantic/aq_ring.h:13: In file included from drivers/net/ethernet/aquantia/atlantic/aq_common.h:13: In file included from include/linux/etherdevice.h:20: In file included from include/linux/if_ether.h:19: In file included from include/linux/skbuff.h:28: In file included from include/net/checksum.h:22: arch/mips/include/asm/checksum.h:161:9: error: unsupported inline asm: input with type 'unsigned long' matching output with type '__wsum' (aka 'unsigned int') : "0" ((__force unsigned long)daddr), ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ aq_free_rxpage(&rxbuf->rxdata, ^~~~~~~~~~~~~ drivers/net/ethernet/aquantia/atlantic/aq_ring.c:95:24: warning: taking address of packed member '' of class or structure 'aq_ring_buff_s' may result in an unaligned pointer value [-Waddress-of-packed-member] ret = aq_get_rxpage(&rxbuf->rxdata, order, ^~~~~~~~~~~~~ drivers/net/ethernet/aquantia/atlantic/aq_ring.c:427:23: warning: taking address of packed member '' of class or structure 'aq_ring_buff_s' may result in an unaligned pointer value [-Waddress-of-packed-member] aq_buf_vaddr(&buff->rxdata), ^~~~~~~~~~~~ drivers/net/ethernet/aquantia/atlantic/aq_ring.c:433:23: warning: taking address of packed member '' of class or structure 'aq_ring_buff_s' may result in an unaligned pointer value [-Waddress-of-packed-member] aq_buf_vaddr(&buff->rxdata), ^~~~~~~~~~~~ drivers/net/ethernet/aquantia/atlantic/aq_ring.c:436:49: warning: taking address of packed member '' of class or structure 'aq_ring_buff_s' may result in an unaligned pointer value [-Waddress-of-packed-member] memcpy(__skb_put(skb, hdr_len), aq_buf_vaddr(&buff->rxdata), ^~~~~~~~~~~~ drivers/net/ethernet/aquantia/atlantic/aq_ring.c:543:28: warning: taking address of packed member '' of class or structure 'aq_ring_buff_s' may result in an unaligned pointer value [-Waddress-of-packed-member] buff->pa = aq_buf_daddr(&buff->rxdata); ^~~~~~~~~~~~ drivers/net/ethernet/aquantia/atlantic/aq_ring.c:560:19: warning: taking address of packed member '' of class or structure 'aq_ring_buff_s' may result in an unaligned pointer value [-Waddress-of-packed-member] aq_free_rxpage(&buff->rxdata, aq_nic_get_dev(self->aq_nic)); ^~~~~~~~~~~~ 7 warnings and 1 error generated. -- In file included from drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.c:10: In file included from drivers/net/ethernet/aquantia/atlantic/hw_atl/../aq_hw.h:15: In file included from drivers/net/ethernet/aquantia/atlantic/aq_common.h:13: In file included from include/linux/etherdevice.h:20: In file included from include/linux/if_ether.h:19: In file included from include/linux/skbuff.h:28: In file included from include/net/checksum.h:22: arch/mips/include/asm/checksum.h:161:9: error: unsupported inline asm: input with type 'unsigned long' matching output with type '__wsum' (aka 'unsigned int') : "0" ((__force unsigned long)daddr), ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ &fwreq.ptp_adj_freq.ns_mac, ^~~~~~~~~~~~~~~~~~~~~~~~~ &fwreq.ptp_adj_freq.fns_mac); ^~~~~~~~~~~~~~~~~~~~~~~~~~ &fwreq.ptp_adj_freq.ns_phy, ^~~~~~~~~~~~~~~~~~~~~~~~~ &fwreq.ptp_adj_freq.fns_phy); ^~~~~~~~~~~~~~~~~~~~~~~~~~ 4 warnings and 1 error generated. vim +122 drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c 5b97b0d10eddeeec Igor Russkikh 2018-01-15 117 ab3518acac42751f Mark Starovoytov 2020-06-26 118 static int aq_pci_func_init(struct pci_dev *pdev) a4d36e20d035140b David VomLehn 2017-01-23 119 { a26b0b53cc38eb41 Colin Ian King 2018-10-08 120 int err; a4d36e20d035140b David VomLehn 2017-01-23 121 23ee07ad3c2fd5ad Igor Russkikh 2018-01-19 @122 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); b3f0c79cba2060c1 Igor Russkikh 2020-04-30 123 if (!err) 23ee07ad3c2fd5ad Igor Russkikh 2018-01-19 124 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)); a4d36e20d035140b David VomLehn 2017-01-23 125 if (err) { 23ee07ad3c2fd5ad Igor Russkikh 2018-01-19 126 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); a4d36e20d035140b David VomLehn 2017-01-23 127 if (!err) 23ee07ad3c2fd5ad Igor Russkikh 2018-01-19 128 err = pci_set_consistent_dma_mask(pdev, a4d36e20d035140b David VomLehn 2017-01-23 129 DMA_BIT_MASK(32)); a4d36e20d035140b David VomLehn 2017-01-23 130 } a4d36e20d035140b David VomLehn 2017-01-23 131 if (err != 0) { a4d36e20d035140b David VomLehn 2017-01-23 132 err = -ENOSR; a4d36e20d035140b David VomLehn 2017-01-23 133 goto err_exit; a4d36e20d035140b David VomLehn 2017-01-23 134 } a4d36e20d035140b David VomLehn 2017-01-23 135 23ee07ad3c2fd5ad Igor Russkikh 2018-01-19 136 err = pci_request_regions(pdev, AQ_CFG_DRV_NAME "_mmio"); a4d36e20d035140b David VomLehn 2017-01-23 137 if (err < 0) a4d36e20d035140b David VomLehn 2017-01-23 138 goto err_exit; a4d36e20d035140b David VomLehn 2017-01-23 139 23ee07ad3c2fd5ad Igor Russkikh 2018-01-19 140 pci_set_master(pdev); a4d36e20d035140b David VomLehn 2017-01-23 141 23ee07ad3c2fd5ad Igor Russkikh 2018-01-19 142 return 0; a4d36e20d035140b David VomLehn 2017-01-23 143 a4d36e20d035140b David VomLehn 2017-01-23 144 err_exit: a4d36e20d035140b David VomLehn 2017-01-23 145 return err; a4d36e20d035140b David VomLehn 2017-01-23 146 } a4d36e20d035140b David VomLehn 2017-01-23 147 :::::: The code at line 122 was first introduced by commit :::::: 23ee07ad3c2fd5adf6e9ef21afb9aec489dc3b4e net: aquantia: Cleanup pci functions module :::::: TO: Igor Russkikh <igor.russkikh(a)aquantia.com&gt; :::::: CC: David S. Miller <davem(a)davemloft.net&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org