tree: https://github.com/Xilinx/linux-xlnx master head: 566441779cdc25e377c2baab9277342b09b4249b commit: 566441779cdc25e377c2baab9277342b09b4249b [137/137] misc: xilinx-ai-engine: add setting shim dma bd operation config: mips-allyesconfig (attached as .config) compiler: mips-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 566441779cdc25e377c2baab9277342b09b4249b # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 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 include/linux/cdev.h:8, from drivers/misc/xilinx-ai-engine/ai-engine-internal.h:13, from drivers/misc/xilinx-ai-engine/ai-engine-dma.c:8: drivers/misc/xilinx-ai-engine/ai-engine-dma.c: In function 'aie_part_get_dmabuf_da': 83 | dev_err(&apart->dev, "failed to find vma for %p, 0x%lx.\n", | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/device.h:1658:22: note: in definition of macro 'dev_fmt' 1658 | #define dev_fmt(fmt) fmt | ^~~ drivers/misc/xilinx-ai-engine/ai-engine-dma.c:83:3: note: in expansion of macro 'dev_err' 83 | dev_err(&apart->dev, "failed to find vma for %p, 0x%lx.\n", | ^~~~~~~ drivers/misc/xilinx-ai-engine/ai-engine-dma.c:83:56: note: format string is defined here 83 | dev_err(&apart->dev, "failed to find vma for %p, 0x%lx.\n", | ~~^ | | | long unsigned int | %x In file included from include/linux/cdev.h:8, from drivers/misc/xilinx-ai-engine/ai-engine-internal.h:13, from drivers/misc/xilinx-ai-engine/ai-engine-dma.c:8: drivers/misc/xilinx-ai-engine/ai-engine-dma.c:103:4: warning: format '%lx' expects argument of type 'long unsigned int', but argument 4 has type 'size_t' {aka 'unsigned int'} [-Wformat=] 103 | "failed to get dma address for %p, 0x%lx.\n", va, len); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/device.h:1658:22: note: in definition of macro 'dev_fmt' 1658 | #define dev_fmt(fmt) fmt | ^~~ drivers/misc/xilinx-ai-engine/ai-engine-dma.c:102:3: note: in expansion of macro 'dev_err' 102 | dev_err(&apart->dev, | ^~~~~~~ drivers/misc/xilinx-ai-engine/ai-engine-dma.c:103:43: note: format string is defined here 103 | "failed to get dma address for %p, 0x%lx.\n", va, len); | ~~^ | | | long unsigned int | %x vim +83 drivers/misc/xilinx-ai-engine/ai-engine-dma.c 9 #include <linux/dma-buf.h> 10 #include <linux/kernel.h> 11 #include <linux/mm.h> 12 #include <linux/refcount.h> 13 #include <linux/slab.h> 14 #include <linux/types.h> 15 #include <linux/uaccess.h> 16 17 /** 18 * struct aie_dmabuf - AI engine dmabuf information 19 * @attach: dmabuf attachment pointer 20 * @sgt: scatter/gather table 21 * @refs: refcount of the attached aie_dmabuf 22 * @node: list node 23 */ 24 struct aie_dmabuf { 25 struct dma_buf_attachment *attach; 26 struct sg_table *sgt; 27 refcount_t refs; 28 struct list_head node; 29 }; 30 31 /** 32 * aie_part_find_dmabuf_from_file() - find a attached dmabuf from file 33 * @apart: AI engine partition 34 * @file: file which belongs to a dmabuf 35 * @return: pointer to AI engine dmabuf struct of the found dmabuf, if dmabuf 36 * is not found, returns NULL. 37 * 38 * This function scans all the attached dmabufs of the AI engine partition, 39 * it checks the file with the attached dmabufs, if it founds a match, it 40 * returns the aie_dmabuf pointer. 41 */ 42 static struct aie_dmabuf * 43 aie_part_find_dmabuf_from_file(struct aie_partition *apart, 44 const struct file *file) 45 { 46 struct aie_dmabuf *adbuf; 47 48 list_for_each_entry(adbuf, &apart->dbufs, node) { 49 if (file == adbuf->attach->dmabuf->file) 50 return adbuf; 51 } 52 53 return NULL; 54 } 55 56 /** 57 * aie_part_get_dmabuf_da() - get DMA address from the va 58 * @apart: AI engine partition 59 * @va: virtual address 60 * @len: memory length 61 * @return: dma address of of the specified va, or 0 if va is not valid 62 * 63 * This function returns DMA address if the has been mapped to a dmabuf which 64 * has been attached to the AI engine partition. 65 */ 66 static dma_addr_t aie_part_get_dmabuf_da(struct aie_partition *apart, 67 void *va, size_t len) 68 { 69 struct vm_area_struct *vma; 70 struct aie_dmabuf *adbuf; 71 unsigned long va_start, va_off; 72 dma_addr_t da; 73 74 va_start = (unsigned long)((uintptr_t)va); 75 if (!current->mm) { 76 dev_err(&apart->dev, 77 "failed to get dma address from va, no process mm.\n"); 78 return 0; 79 } 80 81 vma = find_vma(current->mm, va_start); 82 if (!vma) { 84 va, len); 85 return 0; 86 } 87 88 adbuf = aie_part_find_dmabuf_from_file(apart, vma->vm_file); 89 if (!adbuf) { 90 dev_err(&apart->dev, 91 "failed to get dma address for %p, no dma buf is found.\n", 92 va); 93 return 0; 94 } 95 96 va_off = va_start - vma->vm_start; 97 /* 98 * As we only support continuous DMA memory which is guaranteed from 99 * dmabuf attachment, we will compared with the size of the dmabuf only 100 */ 101 if (va_off + len >= adbuf->attach->dmabuf->size) { 102 dev_err(&apart->dev, 103 "failed to get dma address for %p, 0x%lx.\n", va, len); 104 return 0; 105 } 106 107 da = sg_dma_address(adbuf->sgt->sgl) + va_off; 108 return da; 109 } 110 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org