Hi Matt, FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: a188339ca5a396acc588e5851ed7e19f66b0ebd9 commit: 7df95299b94a63ec67a6389fc02dc25019a80ee8 staging: kpc2000: Add DMA driver date: 4 weeks ago config: xtensa-allmodconfig (attached as .config) compiler: xtensa-linux-gcc (GCC) 8.1.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout 7df95299b94a63ec67a6389fc02dc25019a80ee8 # save the attached .config to linux build tree GCC_VERSION=8.1.0 make.cross ARCH=xtensa If you fix the issue, kindly add following tag Reported-by: kbuild test robot <l...@intel.com> All errors (new ones prefixed by >>): In file included from drivers/staging/kpc2000/kpc_dma/fileops.c:11: arch/xtensa/include/asm/uaccess.h: In function 'clear_user': >> arch/xtensa/include/asm/uaccess.h:40:22: error: implicit declaration of >> function 'uaccess_kernel'; did you mean 'getname_kernel'? >> [-Werror=implicit-function-declaration] #define __kernel_ok (uaccess_kernel()) ^~~~~~~~~~~~~~ arch/xtensa/include/asm/uaccess.h:43:34: note: in expansion of macro '__kernel_ok' #define __access_ok(addr, size) (__kernel_ok || __user_ok((addr), (size))) ^~~~~~~~~~~ arch/xtensa/include/asm/uaccess.h:44:31: note: in expansion of macro '__access_ok' #define access_ok(addr, size) __access_ok((unsigned long)(addr), (size)) ^~~~~~~~~~~ arch/xtensa/include/asm/uaccess.h:271:6: note: in expansion of macro 'access_ok' if (access_ok(addr, size)) ^~~~~~~~~ In file included from include/linux/printk.h:330, from include/linux/kernel.h:15, from include/linux/list.h:9, from include/linux/module.h:9, from drivers/staging/kpc2000/kpc_dma/fileops.c:2: drivers/staging/kpc2000/kpc_dma/fileops.c: In function 'kpc_dma_transfer': drivers/staging/kpc2000/kpc_dma/fileops.c:58:35: warning: format '%ld' expects argument of type 'long int', but argument 7 has type 'size_t' {aka 'unsigned int'} [-Wformat=] dev_dbg(&priv->ldev->pldev->dev, "kpc_dma_transfer(priv = [%p], kcb = [%p], iov_base = [%p], iov_len = %ld) ldev = [%p]\n", priv, kcb, (void*)iov_base, iov_len, ldev); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/dynamic_debug.h:118:15: note: in definition of macro '__dynamic_func_call' func(&id, ##__VA_ARGS__); \ ^~~~~~~~~~~ include/linux/dynamic_debug.h:150:2: note: in expansion of macro '_dynamic_func_call' _dynamic_func_call(fmt,__dynamic_dev_dbg, \ ^~~~~~~~~~~~~~~~~~ include/linux/device.h:1493:2: note: in expansion of macro 'dynamic_dev_dbg' dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__) ^~~~~~~~~~~~~~~ include/linux/device.h:1493:23: note: in expansion of macro 'dev_fmt' dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__) ^~~~~~~ drivers/staging/kpc2000/kpc_dma/fileops.c:58:2: note: in expansion of macro 'dev_dbg' dev_dbg(&priv->ldev->pldev->dev, "kpc_dma_transfer(priv = [%p], kcb = [%p], iov_base = [%p], iov_len = %ld) ldev = [%p]\n", priv, kcb, (void*)iov_base, iov_len, ldev); ^~~~~~~ cc1: some warnings being treated as errors -- In file included from drivers/staging//kpc2000/kpc_dma/fileops.c:11: arch/xtensa/include/asm/uaccess.h: In function 'clear_user': >> arch/xtensa/include/asm/uaccess.h:40:22: error: implicit declaration of >> function 'uaccess_kernel'; did you mean 'getname_kernel'? >> [-Werror=implicit-function-declaration] #define __kernel_ok (uaccess_kernel()) ^~~~~~~~~~~~~~ arch/xtensa/include/asm/uaccess.h:43:34: note: in expansion of macro '__kernel_ok' #define __access_ok(addr, size) (__kernel_ok || __user_ok((addr), (size))) ^~~~~~~~~~~ arch/xtensa/include/asm/uaccess.h:44:31: note: in expansion of macro '__access_ok' #define access_ok(addr, size) __access_ok((unsigned long)(addr), (size)) ^~~~~~~~~~~ arch/xtensa/include/asm/uaccess.h:271:6: note: in expansion of macro 'access_ok' if (access_ok(addr, size)) ^~~~~~~~~ In file included from include/linux/printk.h:330, from include/linux/kernel.h:15, from include/linux/list.h:9, from include/linux/module.h:9, from drivers/staging//kpc2000/kpc_dma/fileops.c:2: drivers/staging//kpc2000/kpc_dma/fileops.c: In function 'kpc_dma_transfer': drivers/staging//kpc2000/kpc_dma/fileops.c:58:35: warning: format '%ld' expects argument of type 'long int', but argument 7 has type 'size_t' {aka 'unsigned int'} [-Wformat=] dev_dbg(&priv->ldev->pldev->dev, "kpc_dma_transfer(priv = [%p], kcb = [%p], iov_base = [%p], iov_len = %ld) ldev = [%p]\n", priv, kcb, (void*)iov_base, iov_len, ldev); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/dynamic_debug.h:118:15: note: in definition of macro '__dynamic_func_call' func(&id, ##__VA_ARGS__); \ ^~~~~~~~~~~ include/linux/dynamic_debug.h:150:2: note: in expansion of macro '_dynamic_func_call' _dynamic_func_call(fmt,__dynamic_dev_dbg, \ ^~~~~~~~~~~~~~~~~~ include/linux/device.h:1493:2: note: in expansion of macro 'dynamic_dev_dbg' dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__) ^~~~~~~~~~~~~~~ include/linux/device.h:1493:23: note: in expansion of macro 'dev_fmt' dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__) ^~~~~~~ drivers/staging//kpc2000/kpc_dma/fileops.c:58:2: note: in expansion of macro 'dev_dbg' dev_dbg(&priv->ldev->pldev->dev, "kpc_dma_transfer(priv = [%p], kcb = [%p], iov_base = [%p], iov_len = %ld) ldev = [%p]\n", priv, kcb, (void*)iov_base, iov_len, ldev); ^~~~~~~ cc1: some warnings being treated as errors vim +40 arch/xtensa/include/asm/uaccess.h 9a8fd558 include/asm-xtensa/uaccess.h Chris Zankel 2005-06-23 39 db68ce10 arch/xtensa/include/asm/uaccess.h Al Viro 2017-03-20 @40 #define __kernel_ok (uaccess_kernel()) c4c4594b arch/xtensa/include/asm/uaccess.h Chris Zankel 2012-11-28 41 #define __user_ok(addr, size) \ c4c4594b arch/xtensa/include/asm/uaccess.h Chris Zankel 2012-11-28 42 (((size) <= TASK_SIZE)&&((addr) <= TASK_SIZE-(size))) 9a8fd558 include/asm-xtensa/uaccess.h Chris Zankel 2005-06-23 43 #define __access_ok(addr, size) (__kernel_ok || __user_ok((addr), (size))) 96d4f267 arch/xtensa/include/asm/uaccess.h Linus Torvalds 2019-01-03 44 #define access_ok(addr, size) __access_ok((unsigned long)(addr), (size)) 9a8fd558 include/asm-xtensa/uaccess.h Chris Zankel 2005-06-23 45 :::::: The code at line 40 was first introduced by commit :::::: db68ce10c4f0a27c1ff9fa0e789e5c41f8c4ea63 new helper: uaccess_kernel() :::::: TO: Al Viro <v...@zeniv.linux.org.uk> :::::: CC: Al Viro <v...@zeniv.linux.org.uk> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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