Hi Jacopo, I love your patch! Yet something to improve: [auto build test ERROR on linuxtv-media/master] [also build test ERROR on linus/master v5.7-rc3 next-20200428] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Jacopo-Mondi/media-Register-read-only-sub-dev-devnode/20200429-062133 base: git://linuxtv.org/media_tree.git master config: arm-at91_dt_defconfig (attached as .config) compiler: arm-linux-gnueabi-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day GCC_VERSION=9.3.0 make.cross ARCH=arm If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): drivers/media/v4l2-core/v4l2-subdev.c: In function 'subdev_fh_init': >> drivers/media/v4l2-core/v4l2-subdev.c:28:5: error: 'struct v4l2_subdev_fh' has no member named 'pad' 28 | fh->pad = v4l2_subdev_alloc_pad_config(sd); | ^~ drivers/media/v4l2-core/v4l2-subdev.c:29:9: error: 'struct v4l2_subdev_fh' has no member named 'pad' 29 | if (fh->pad == NULL) | ^~ drivers/media/v4l2-core/v4l2-subdev.c: In function 'subdev_fh_free': drivers/media/v4l2-core/v4l2-subdev.c:38:32: error: 'struct v4l2_subdev_fh' has no member named 'pad' 38 | v4l2_subdev_free_pad_config(fh->pad); | ^~ drivers/media/v4l2-core/v4l2-subdev.c:39:4: error: 'struct v4l2_subdev_fh' has no member named 'pad' 39 | fh->pad = NULL; | ^~ In file included from include/media/v4l2-device.h:13, from drivers/media/v4l2-core/v4l2-subdev.c:20: drivers/media/v4l2-core/v4l2-subdev.c: In function 'subdev_do_ioctl': drivers/media/v4l2-core/v4l2-subdev.c:469:54: error: 'struct v4l2_subdev_fh' has no member named 'pad' 469 | return v4l2_subdev_call(sd, pad, get_fmt, subdev_fh->pad, format); | ^~ include/media/v4l2-subdev.h:1111:16: note: in definition of macro 'v4l2_subdev_call' 1111 | __sd, ##args); \ | ^~~~ drivers/media/v4l2-core/v4l2-subdev.c:469:54: error: 'struct v4l2_subdev_fh' has no member named 'pad' 469 | return v4l2_subdev_call(sd, pad, get_fmt, subdev_fh->pad, format); | ^~ include/media/v4l2-subdev.h:1113:39: note: in definition of macro 'v4l2_subdev_call' 1113 | __result = __sd->ops->o->f(__sd, ##args); \ | ^~~~ drivers/media/v4l2-core/v4l2-subdev.c:480:54: error: 'struct v4l2_subdev_fh' has no member named 'pad' 480 | return v4l2_subdev_call(sd, pad, set_fmt, subdev_fh->pad, format); | ^~ include/media/v4l2-subdev.h:1111:16: note: in definition of macro 'v4l2_subdev_call' 1111 | __sd, ##args); \ | ^~~~ drivers/media/v4l2-core/v4l2-subdev.c:480:54: error: 'struct v4l2_subdev_fh' has no member named 'pad' 480 | return v4l2_subdev_call(sd, pad, set_fmt, subdev_fh->pad, format); | ^~ include/media/v4l2-subdev.h:1113:39: note: in definition of macro 'v4l2_subdev_call' 1113 | __result = __sd->ops->o->f(__sd, ##args); \ | ^~~~ drivers/media/v4l2-core/v4l2-subdev.c:494:37: error: 'struct v4l2_subdev_fh' has no member named 'pad' 494 | sd, pad, get_selection, subdev_fh->pad, &sel); | ^~ include/media/v4l2-subdev.h:1111:16: note: in definition of macro 'v4l2_subdev_call' 1111 | __sd, ##args); \ | ^~~~ drivers/media/v4l2-core/v4l2-subdev.c:494:37: error: 'struct v4l2_subdev_fh' has no member named 'pad' 494 | sd, pad, get_selection, subdev_fh->pad, &sel); | ^~ include/media/v4l2-subdev.h:1113:39: note: in definition of macro 'v4l2_subdev_call' 1113 | __result = __sd->ops->o->f(__sd, ##args); \ | ^~~~ drivers/media/v4l2-core/v4l2-subdev.c:516:37: error: 'struct v4l2_subdev_fh' has no member named 'pad' 516 | sd, pad, set_selection, subdev_fh->pad, &sel); | ^~ include/media/v4l2-subdev.h:1111:16: note: in definition of macro 'v4l2_subdev_call' 1111 | __sd, ##args); \ | ^~~~ drivers/media/v4l2-core/v4l2-subdev.c:516:37: error: 'struct v4l2_subdev_fh' has no member named 'pad' 516 | sd, pad, set_selection, subdev_fh->pad, &sel); | ^~ include/media/v4l2-subdev.h:1113:39: note: in definition of macro 'v4l2_subdev_call' 1113 | __result = __sd->ops->o->f(__sd, ##args); \ | ^~~~ drivers/media/v4l2-core/v4l2-subdev.c:527:61: error: 'struct v4l2_subdev_fh' has no member named 'pad' 527 | return v4l2_subdev_call(sd, pad, enum_mbus_code, subdev_fh->pad, | ^~ include/media/v4l2-subdev.h:1111:16: note: in definition of macro 'v4l2_subdev_call' 1111 | __sd, ##args); \ | ^~~~ drivers/media/v4l2-core/v4l2-subdev.c:527:61: error: 'struct v4l2_subdev_fh' has no member named 'pad' 527 | return v4l2_subdev_call(sd, pad, enum_mbus_code, subdev_fh->pad, | ^~ include/media/v4l2-subdev.h:1113:39: note: in definition of macro 'v4l2_subdev_call' 1113 | __result = __sd->ops->o->f(__sd, ##args); \ | ^~~~ drivers/media/v4l2-core/v4l2-subdev.c:535:62: error: 'struct v4l2_subdev_fh' has no member named 'pad' 535 | return v4l2_subdev_call(sd, pad, enum_frame_size, subdev_fh->pad, | ^~ include/media/v4l2-subdev.h:1111:16: note: in definition of macro 'v4l2_subdev_call' 1111 | __sd, ##args); \ | ^~~~ drivers/media/v4l2-core/v4l2-subdev.c:535:62: error: 'struct v4l2_subdev_fh' has no member named 'pad' 535 | return v4l2_subdev_call(sd, pad, enum_frame_size, subdev_fh->pad, | ^~ include/media/v4l2-subdev.h:1113:39: note: in definition of macro 'v4l2_subdev_call' 1113 | __result = __sd->ops->o->f(__sd, ##args); \ | ^~~~ drivers/media/v4l2-core/v4l2-subdev.c:560:66: error: 'struct v4l2_subdev_fh' has no member named 'pad' 560 | return v4l2_subdev_call(sd, pad, enum_frame_interval, subdev_fh->pad, | ^~ include/media/v4l2-subdev.h:1111:16: note: in definition of macro 'v4l2_subdev_call' 1111 | __sd, ##args); \ | ^~~~ drivers/media/v4l2-core/v4l2-subdev.c:560:66: error: 'struct v4l2_subdev_fh' has no member named 'pad' 560 | return v4l2_subdev_call(sd, pad, enum_frame_interval, subdev_fh->pad, | ^~ include/media/v4l2-subdev.h:1113:39: note: in definition of macro 'v4l2_subdev_call' 1113 | __result = __sd->ops->o->f(__sd, ##args); \ | ^~~~ drivers/media/v4l2-core/v4l2-subdev.c:569:37: error: 'struct v4l2_subdev_fh' has no member named 'pad' vim +28 drivers/media/v4l2-core/v4l2-subdev.c 2096a5dcf9704f drivers/media/video/v4l2-subdev.c Laurent Pinchart 2009-12-09 24 7cd5a16b22af7d drivers/media/video/v4l2-subdev.c Stanimir Varbanov 2010-05-21 25 static int subdev_fh_init(struct v4l2_subdev_fh *fh, struct v4l2_subdev *sd) 7cd5a16b22af7d drivers/media/video/v4l2-subdev.c Stanimir Varbanov 2010-05-21 26 { 9b02cbb3ede89b drivers/media/v4l2-core/v4l2-subdev.c Laurent Pinchart 2015-04-24 27 if (sd->entity.num_pads) { 9b02cbb3ede89b drivers/media/v4l2-core/v4l2-subdev.c Laurent Pinchart 2015-04-24 @28 fh->pad = v4l2_subdev_alloc_pad_config(sd); ae184cda8d0eeb drivers/media/video/v4l2-subdev.c Sakari Ailus 2011-10-14 29 if (fh->pad == NULL) 7cd5a16b22af7d drivers/media/video/v4l2-subdev.c Stanimir Varbanov 2010-05-21 30 return -ENOMEM; 9b02cbb3ede89b drivers/media/v4l2-core/v4l2-subdev.c Laurent Pinchart 2015-04-24 31 } b9e6aad3939a62 drivers/media/v4l2-core/v4l2-subdev.c Jacopo Mondi 2020-04-28 32 7cd5a16b22af7d drivers/media/video/v4l2-subdev.c Stanimir Varbanov 2010-05-21 33 return 0; 7cd5a16b22af7d drivers/media/video/v4l2-subdev.c Stanimir Varbanov 2010-05-21 34 } 7cd5a16b22af7d drivers/media/video/v4l2-subdev.c Stanimir Varbanov 2010-05-21 35 :::::: The code at line 28 was first introduced by commit :::::: 9b02cbb3ede89b5cd84bbe4ef493bd130d76b070 [media] v4l: subdev: Add pad config allocator and init :::::: TO: Laurent Pinchart <laurent.pinchart@xxxxxxxxxx> :::::: CC: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxx> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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