Messages in this thread | | | Date | Tue, 7 Jul 2020 01:25:44 +0800 | From | kernel test robot <> | Subject | drivers/net/phy/mdio-cavium.c:21:16: note: in expansion of macro 'oct_mdio_readq' |
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Hi Nathan,
First bad commit (maybe != root cause):
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: dcb7fd82c75ee2d6e6f9d8cc71c52519ed52e258 commit: b8fb640643fcdb3bca84137c4cec0c649b25e056 net: mdio-octeon: Fix Kconfig warnings and build errors date: 11 months ago config: m68k-randconfig-r015-20200706 (attached as .config) compiler: m68k-linux-gcc (GCC) 9.3.0 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 git checkout b8fb640643fcdb3bca84137c4cec0c649b25e056 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=m68k
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
In file included from include/linux/kernel.h:11, from include/linux/delay.h:22, from drivers/net/phy/mdio-cavium.c:6: include/linux/scatterlist.h: In function 'sg_set_buf': arch/m68k/include/asm/page_no.h:33:50: warning: ordered comparison of pointer with null pointer [-Wextra] 33 | #define virt_addr_valid(kaddr) (((void *)(kaddr) >= (void *)PAGE_OFFSET) && \ | ^~ include/linux/compiler.h:78:42: note: in definition of macro 'unlikely' 78 | # define unlikely(x) __builtin_expect(!!(x), 0) | ^ include/linux/scatterlist.h:143:2: note: in expansion of macro 'BUG_ON' 143 | BUG_ON(!virt_addr_valid(buf)); | ^~~~~~ include/linux/scatterlist.h:143:10: note: in expansion of macro 'virt_addr_valid' 143 | BUG_ON(!virt_addr_valid(buf)); | ^~~~~~~~~~~~~~~ In file included from drivers/net/phy/mdio-cavium.c:11: drivers/net/phy/mdio-cavium.c: In function 'cavium_mdiobus_set_mode': drivers/net/phy/mdio-cavium.h:114:37: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 114 | #define oct_mdio_readq(addr) readq((void *)addr) | ^ >> drivers/net/phy/mdio-cavium.c:21:16: note: in expansion of macro 'oct_mdio_readq' 21 | smi_clk.u64 = oct_mdio_readq(p->register_base + SMI_CLK); | ^~~~~~~~~~~~~~ drivers/net/phy/mdio-cavium.h:113:48: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 113 | #define oct_mdio_writeq(val, addr) writeq(val, (void *)addr) | ^ >> drivers/net/phy/mdio-cavium.c:24:2: note: in expansion of macro 'oct_mdio_writeq' 24 | oct_mdio_writeq(smi_clk.u64, p->register_base + SMI_CLK); | ^~~~~~~~~~~~~~~ drivers/net/phy/mdio-cavium.c: In function 'cavium_mdiobus_c45_addr': drivers/net/phy/mdio-cavium.h:113:48: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 113 | #define oct_mdio_writeq(val, addr) writeq(val, (void *)addr) | ^ drivers/net/phy/mdio-cavium.c:39:2: note: in expansion of macro 'oct_mdio_writeq' 39 | oct_mdio_writeq(smi_wr.u64, p->register_base + SMI_WR_DAT); | ^~~~~~~~~~~~~~~ drivers/net/phy/mdio-cavium.h:113:48: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 113 | #define oct_mdio_writeq(val, addr) writeq(val, (void *)addr) | ^ drivers/net/phy/mdio-cavium.c:47:2: note: in expansion of macro 'oct_mdio_writeq' 47 | oct_mdio_writeq(smi_cmd.u64, p->register_base + SMI_CMD); | ^~~~~~~~~~~~~~~ drivers/net/phy/mdio-cavium.h:114:37: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 114 | #define oct_mdio_readq(addr) readq((void *)addr) | ^ drivers/net/phy/mdio-cavium.c:54:16: note: in expansion of macro 'oct_mdio_readq' 54 | smi_wr.u64 = oct_mdio_readq(p->register_base + SMI_WR_DAT); | ^~~~~~~~~~~~~~ drivers/net/phy/mdio-cavium.c: In function 'cavium_mdiobus_read': drivers/net/phy/mdio-cavium.h:113:48: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 113 | #define oct_mdio_writeq(val, addr) writeq(val, (void *)addr) | ^ drivers/net/phy/mdio-cavium.c:86:2: note: in expansion of macro 'oct_mdio_writeq' 86 | oct_mdio_writeq(smi_cmd.u64, p->register_base + SMI_CMD); | ^~~~~~~~~~~~~~~ drivers/net/phy/mdio-cavium.h:114:37: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 114 | #define oct_mdio_readq(addr) readq((void *)addr) | ^ drivers/net/phy/mdio-cavium.c:93:16: note: in expansion of macro 'oct_mdio_readq' 93 | smi_rd.u64 = oct_mdio_readq(p->register_base + SMI_RD_DAT); | ^~~~~~~~~~~~~~ drivers/net/phy/mdio-cavium.c: In function 'cavium_mdiobus_write': drivers/net/phy/mdio-cavium.h:113:48: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 113 | #define oct_mdio_writeq(val, addr) writeq(val, (void *)addr) | ^ drivers/net/phy/mdio-cavium.c:125:2: note: in expansion of macro 'oct_mdio_writeq' 125 | oct_mdio_writeq(smi_wr.u64, p->register_base + SMI_WR_DAT); | ^~~~~~~~~~~~~~~ drivers/net/phy/mdio-cavium.h:113:48: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 113 | #define oct_mdio_writeq(val, addr) writeq(val, (void *)addr) | ^ drivers/net/phy/mdio-cavium.c:131:2: note: in expansion of macro 'oct_mdio_writeq' 131 | oct_mdio_writeq(smi_cmd.u64, p->register_base + SMI_CMD); | ^~~~~~~~~~~~~~~ drivers/net/phy/mdio-cavium.h:114:37: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 114 | #define oct_mdio_readq(addr) readq((void *)addr) | ^ drivers/net/phy/mdio-cavium.c:138:16: note: in expansion of macro 'oct_mdio_readq' 138 | smi_wr.u64 = oct_mdio_readq(p->register_base + SMI_WR_DAT); | ^~~~~~~~~~~~~~
vim +/oct_mdio_readq +21 drivers/net/phy/mdio-cavium.c
1eefee901fca02 David Daney 2016-03-11 10 1eefee901fca02 David Daney 2016-03-11 @11 #include "mdio-cavium.h" 1eefee901fca02 David Daney 2016-03-11 12 1eefee901fca02 David Daney 2016-03-11 13 static void cavium_mdiobus_set_mode(struct cavium_mdiobus *p, 1eefee901fca02 David Daney 2016-03-11 14 enum cavium_mdiobus_mode m) 1eefee901fca02 David Daney 2016-03-11 15 { 1eefee901fca02 David Daney 2016-03-11 16 union cvmx_smix_clk smi_clk; 1eefee901fca02 David Daney 2016-03-11 17 1eefee901fca02 David Daney 2016-03-11 18 if (m == p->mode) 1eefee901fca02 David Daney 2016-03-11 19 return; 1eefee901fca02 David Daney 2016-03-11 20 1eefee901fca02 David Daney 2016-03-11 @21 smi_clk.u64 = oct_mdio_readq(p->register_base + SMI_CLK); 1eefee901fca02 David Daney 2016-03-11 22 smi_clk.s.mode = (m == C45) ? 1 : 0; 1eefee901fca02 David Daney 2016-03-11 23 smi_clk.s.preamble = 1; 1eefee901fca02 David Daney 2016-03-11 @24 oct_mdio_writeq(smi_clk.u64, p->register_base + SMI_CLK); 1eefee901fca02 David Daney 2016-03-11 25 p->mode = m; 1eefee901fca02 David Daney 2016-03-11 26 } 1eefee901fca02 David Daney 2016-03-11 27
:::::: The code at line 21 was first introduced by commit :::::: 1eefee901fca0208b8a56f20cdc134e2b8638ae7 phy: mdio-octeon: Refactor into two files/modules
:::::: TO: David Daney <david.daney@cavium.com> :::::: CC: David S. Miller <davem@davemloft.net>
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