Hi Suraj, kernel test robot noticed the following build warnings: [auto build test WARNING on drm-intel/for-linux-next] [also build test WARNING on drm-intel/for-linux-next-fixes drm-xe/drm-xe-next drm-tip/drm-tip linus/master v6.8-rc2 next-20240202] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Suraj-Kandpal/drm-i915-hdcp-Move-intel_hdcp_gsc_message-def-away-from-header-file/20240202-164840 base: git://anongit.freedesktop.org/drm-intel for-linux-next patch link: https://lore.kernel.org/r/20240202083737.1088306-3-suraj.kandpal%40intel.com patch subject: [PATCH 2/3] drm/xe/hdcp: Enable HDCP for XE config: s390-allmodconfig (https://download.01.org/0day-ci/archive/20240203/202402030852.sSijMp2S-lkp@xxxxxxxxx/config) compiler: clang version 19.0.0git (https://github.com/llvm/llvm-project 7dd790db8b77c4a833c06632e903dc4f13877a64) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240203/202402030852.sSijMp2S-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202402030852.sSijMp2S-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): In file included from drivers/gpu/drm/xe/display/xe_hdcp_gsc.c:7: In file included from drivers/gpu/drm/xe/compat-i915-headers/i915_drv.h:15: In file included from drivers/gpu/drm/xe/compat-i915-headers/gem/i915_gem_object.h:11: In file included from drivers/gpu/drm/xe/xe_bo.h:11: In file included from drivers/gpu/drm/xe/xe_bo_types.h:9: In file included from include/linux/iosys-map.h:10: In file included from include/linux/io.h:13: In file included from arch/s390/include/asm/io.h:78: include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 547 | val = __raw_readb(PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:560:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 560 | val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr)); | ~~~~~~~~~~ ^ include/uapi/linux/byteorder/big_endian.h:37:59: note: expanded from macro '__le16_to_cpu' 37 | #define __le16_to_cpu(x) __swab16((__force __u16)(__le16)(x)) | ^ include/uapi/linux/swab.h:102:54: note: expanded from macro '__swab16' 102 | #define __swab16(x) (__u16)__builtin_bswap16((__u16)(x)) | ^ In file included from drivers/gpu/drm/xe/display/xe_hdcp_gsc.c:7: In file included from drivers/gpu/drm/xe/compat-i915-headers/i915_drv.h:15: In file included from drivers/gpu/drm/xe/compat-i915-headers/gem/i915_gem_object.h:11: In file included from drivers/gpu/drm/xe/xe_bo.h:11: In file included from drivers/gpu/drm/xe/xe_bo_types.h:9: In file included from include/linux/iosys-map.h:10: In file included from include/linux/io.h:13: In file included from arch/s390/include/asm/io.h:78: include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 573 | val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr)); | ~~~~~~~~~~ ^ include/uapi/linux/byteorder/big_endian.h:35:59: note: expanded from macro '__le32_to_cpu' 35 | #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x)) | ^ include/uapi/linux/swab.h:115:54: note: expanded from macro '__swab32' 115 | #define __swab32(x) (__u32)__builtin_bswap32((__u32)(x)) | ^ In file included from drivers/gpu/drm/xe/display/xe_hdcp_gsc.c:7: In file included from drivers/gpu/drm/xe/compat-i915-headers/i915_drv.h:15: In file included from drivers/gpu/drm/xe/compat-i915-headers/gem/i915_gem_object.h:11: In file included from drivers/gpu/drm/xe/xe_bo.h:11: In file included from drivers/gpu/drm/xe/xe_bo_types.h:9: In file included from include/linux/iosys-map.h:10: In file included from include/linux/io.h:13: In file included from arch/s390/include/asm/io.h:78: include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 584 | __raw_writeb(value, PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:594:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 594 | __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:604:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 604 | __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:692:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 692 | readsb(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ include/asm-generic/io.h:700:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 700 | readsw(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ include/asm-generic/io.h:708:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 708 | readsl(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ include/asm-generic/io.h:717:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 717 | writesb(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ include/asm-generic/io.h:726:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 726 | writesw(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ include/asm-generic/io.h:735:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 735 | writesl(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ >> drivers/gpu/drm/xe/display/xe_hdcp_gsc.c:53:9: warning: variable 'err' is uninitialized when used here [-Wuninitialized] 53 | ret = err; | ^~~ drivers/gpu/drm/xe/display/xe_hdcp_gsc.c:41:9: note: initialize the variable 'err' to silence this warning 41 | int err, ret = 0; | ^ | = 0 drivers/gpu/drm/xe/display/xe_hdcp_gsc.c:105:23: error: invalid application of 'sizeof' to an incomplete type 'struct i915_hdcp_arbiter' 105 | data = kzalloc(sizeof(*data), GFP_KERNEL); | ^~~~~~~ drivers/gpu/drm/i915/display/intel_display_core.h:37:8: note: forward declaration of 'struct i915_hdcp_arbiter' 37 | struct i915_hdcp_arbiter; | ^ drivers/gpu/drm/xe/display/xe_hdcp_gsc.c:111:28: error: incomplete definition of type 'struct i915_hdcp_arbiter' 111 | i915->display.hdcp.arbiter->hdcp_dev = i915->drm.dev; | ~~~~~~~~~~~~~~~~~~~~~~~~~~^ drivers/gpu/drm/i915/display/intel_display_core.h:37:8: note: forward declaration of 'struct i915_hdcp_arbiter' 37 | struct i915_hdcp_arbiter; | ^ drivers/gpu/drm/xe/display/xe_hdcp_gsc.c:112:28: error: incomplete definition of type 'struct i915_hdcp_arbiter' 112 | i915->display.hdcp.arbiter->ops = &gsc_hdcp_ops; | ~~~~~~~~~~~~~~~~~~~~~~~~~~^ drivers/gpu/drm/i915/display/intel_display_core.h:37:8: note: forward declaration of 'struct i915_hdcp_arbiter' 37 | struct i915_hdcp_arbiter; | ^ drivers/gpu/drm/xe/display/xe_hdcp_gsc.c:112:37: error: use of undeclared identifier 'gsc_hdcp_ops' 112 | i915->display.hdcp.arbiter->ops = &gsc_hdcp_ops; | ^ drivers/gpu/drm/xe/display/xe_hdcp_gsc.c:153:10: error: invalid application of 'sizeof' to an incomplete type 'struct hdcp_cmd_header' 153 | sizeof(struct hdcp_cmd_header), NULL); | ^ ~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/xe/display/xe_hdcp_gsc.c:153:24: note: forward declaration of 'struct hdcp_cmd_header' 153 | sizeof(struct hdcp_cmd_header), NULL); | ^ 13 warnings and 5 errors generated. vim +/err +53 drivers/gpu/drm/xe/display/xe_hdcp_gsc.c 34 35 /*This function helps allocate memory for the command that we will send to gsc cs */ 36 static int intel_hdcp_gsc_initialize_message(struct drm_i915_private *i915, 37 struct intel_hdcp_gsc_message *hdcp_message) 38 { 39 struct xe_bo *bo = NULL; 40 u64 cmd_in, cmd_out; 41 int err, ret = 0; 42 43 /* allocate object of two page for HDCP command memory and store it */ 44 45 xe_device_mem_access_get(i915); 46 bo = xe_bo_create_pin_map(i915, xe_device_get_root_tile(i915), NULL, PAGE_SIZE * 2, 47 ttm_bo_type_kernel, 48 XE_BO_CREATE_SYSTEM_BIT | 49 XE_BO_CREATE_GGTT_BIT); 50 51 if (IS_ERR(bo)) { 52 drm_err(&i915->drm, "Failed to allocate bo for HDCP streaming command!\n"); > 53 ret = err; 54 goto out; 55 } 56 57 cmd_in = xe_bo_ggtt_addr(bo); 58 59 if (iosys_map_is_null(&bo->vmap)) { 60 drm_err(&i915->drm, "Failed to map gsc message page!\n"); 61 ret = PTR_ERR(&bo->vmap); 62 goto out; 63 } 64 65 cmd_out = cmd_in + PAGE_SIZE; 66 67 xe_map_memset(i915, &bo->vmap, 0, 0, bo->size); 68 69 hdcp_message->hdcp_bo = bo; 70 hdcp_message->hdcp_cmd_in = cmd_in; 71 hdcp_message->hdcp_cmd_out = cmd_out; 72 out: 73 xe_device_mem_access_put(i915); 74 return ret; 75 } 76 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
