Hi all, I was able to use the linux-media backports successfully against Synology kernels for multiple archs to create automated installation packages. Project PR available here: https://github.com/SynoCommunity/spksrc/pull/4144 Packages available here: https://github.com/th0ma7/synology/tree/master/packages/linuxtv One of the last remaining bug I have is under armv8 arch for rtd1296 & armada37xx facing the exact same issue (full logs attached). Help on solving this would be much appreciated. Thnx in advance. - vin Error log output: /home/spksrc/spksrc-linuxtv2/spksrc/spk/synokernel-linuxtv/work-rtd1296-6.2.3/linuxtv-gita236fddff61e8357f3070effdf23e9b5f20b26e6/v4l/v4l2-common.c: At top level: cc1: warning: unrecognized command line option "-Wno-format-truncation" CC [M] /home/spksrc/spksrc-linuxtv2/spksrc/spk/synokernel-linuxtv/work-rtd1296-6.2.3/linuxtv-gita236fddff61e8357f3070effdf23e9b5f20b26e6/v4l/v4l2-compat-ioctl32.o /home/spksrc/spksrc-linuxtv2/spksrc/spk/synokernel-linuxtv/work-rtd1296-6.2.3/linuxtv-gita236fddff61e8357f3070effdf23e9b5f20b26e6/v4l/v4l2-compat-ioctl32.c:785:15: warning: 'struct v4l2_event32' declared inside parameter list struct v4l2_event32 __user *p32) ^ /home/spksrc/spksrc-linuxtv2/spksrc/spk/synokernel-linuxtv/work-rtd1296-6.2.3/linuxtv-gita236fddff61e8357f3070effdf23e9b5f20b26e6/v4l/v4l2-compat-ioctl32.c:785:15: warning: its scope is only this definition or declaration, which is probably not what you want In file included from include/net/checksum.h:25:0, from include/linux/skbuff.h:31, from include/linux/if_ether.h:23, from /home/spksrc/spksrc-linuxtv2/spksrc/spk/synokernel-linuxtv/work-rtd1296-6.2.3/linuxtv-gita236fddff61e8357f3070effdf23e9b5f20b26e6/v4l/compat.h:1721, from <command-line>:0: /home/spksrc/spksrc-linuxtv2/spksrc/spk/synokernel-linuxtv/work-rtd1296-6.2.3/linuxtv-gita236fddff61e8357f3070effdf23e9b5f20b26e6/v4l/v4l2-compat-ioctl32.c: In function 'put_v4l2_event32': /home/spksrc/spksrc-linuxtv2/spksrc/spk/synokernel-linuxtv/work-rtd1296-6.2.3/linuxtv-gita236fddff61e8357f3070effdf23e9b5f20b26e6/v4l/v4l2-compat-ioctl32.c:787:30: error: dereferencing pointer to incomplete type if (put_user(p64->type, &p32->type) || ^ ./arch/rtd1296/include/asm/uaccess.h:243:15: note: in definition of macro 'put_user' __typeof__(*(ptr)) __user *__p = (ptr); \ ^ /home/spksrc/spksrc-linuxtv2/spksrc/spk/synokernel-linuxtv/work-rtd1296-6.2.3/linuxtv-gita236fddff61e8357f3070effdf23e9b5f20b26e6/v4l/v4l2-compat-ioctl32.c:787:30: error: dereferencing pointer to incomplete type if (put_user(p64->type, &p32->type) || ^ ./arch/rtd1296/include/asm/uaccess.h:243:36: note: in definition of macro 'put_user' __typeof__(*(ptr)) __user *__p = (ptr); \ ^ /home/spksrc/spksrc-linuxtv2/spksrc/spk/synokernel-linuxtv/work-rtd1296-6.2.3/linuxtv-gita236fddff61e8357f3070effdf23e9b5f20b26e6/v4l/v4l2-compat-ioctl32.c:788:23: error: dereferencing pointer to incomplete type copy_to_user(&p32->u, &p64->u, sizeof(p64->u)) || ^ In file included from include/net/checksum.h:25:0, from include/linux/skbuff.h:31, from include/linux/if_ether.h:23, from /home/spksrc/spksrc-linuxtv2/spksrc/spk/synokernel-linuxtv/work-rtd1296-6.2.3/linuxtv-gita236fddff61e8357f3070effdf23e9b5f20b26e6/v4l/compat.h:1721, from <command-line>:0: /home/spksrc/spksrc-linuxtv2/spksrc/spk/synokernel-linuxtv/work-rtd1296-6.2.3/linuxtv-gita236fddff61e8357f3070effdf23e9b5f20b26e6/v4l/v4l2-compat-ioctl32.c:789:33: error: dereferencing pointer to incomplete type put_user(p64->pending, &p32->pending) || ^ ./arch/rtd1296/include/asm/uaccess.h:243:15: note: in definition of macro 'put_user' __typeof__(*(ptr)) __user *__p = (ptr); \ ^ /home/spksrc/spksrc-linuxtv2/spksrc/spk/synokernel-linuxtv/work-rtd1296-6.2.3/linuxtv-gita236fddff61e8357f3070effdf23e9b5f20b26e6/v4l/v4l2-compat-ioctl32.c:789:33: error: dereferencing pointer to incomplete type put_user(p64->pending, &p32->pending) || ^ ./arch/rtd1296/include/asm/uaccess.h:243:36: note: in definition of macro 'put_user' __typeof__(*(ptr)) __user *__p = (ptr); \ ^ /home/spksrc/spksrc-linuxtv2/spksrc/spk/synokernel-linuxtv/work-rtd1296-6.2.3/linuxtv-gita236fddff61e8357f3070effdf23e9b5f20b26e6/v4l/v4l2-compat-ioctl32.c:790:34: error: dereferencing pointer to incomplete type put_user(p64->sequence, &p32->sequence) || ^ ./arch/rtd1296/include/asm/uaccess.h:243:15: note: in definition of macro 'put_user' __typeof__(*(ptr)) __user *__p = (ptr); \ ^ /home/spksrc/spksrc-linuxtv2/spksrc/spk/synokernel-linuxtv/work-rtd1296-6.2.3/linuxtv-gita236fddff61e8357f3070effdf23e9b5f20b26e6/v4l/v4l2-compat-ioctl32.c:790:34: error: dereferencing pointer to incomplete type put_user(p64->sequence, &p32->sequence) || ^ ./arch/rtd1296/include/asm/uaccess.h:243:36: note: in definition of macro 'put_user' __typeof__(*(ptr)) __user *__p = (ptr); \ ^ /home/spksrc/spksrc-linuxtv2/spksrc/spk/synokernel-linuxtv/work-rtd1296-6.2.3/linuxtv-gita236fddff61e8357f3070effdf23e9b5f20b26e6/v4l/v4l2-compat-ioctl32.c:791:42: error: dereferencing pointer to incomplete type put_user(p64->timestamp.tv_sec, &p32->timestamp.tv_sec) || ^ ./arch/rtd1296/include/asm/uaccess.h:243:15: note: in definition of macro 'put_user' __typeof__(*(ptr)) __user *__p = (ptr); \ ^ /home/spksrc/spksrc-linuxtv2/spksrc/spk/synokernel-linuxtv/work-rtd1296-6.2.3/linuxtv-gita236fddff61e8357f3070effdf23e9b5f20b26e6/v4l/v4l2-compat-ioctl32.c:791:42: error: dereferencing pointer to incomplete type put_user(p64->timestamp.tv_sec, &p32->timestamp.tv_sec) || ^ ./arch/rtd1296/include/asm/uaccess.h:243:36: note: in definition of macro 'put_user' __typeof__(*(ptr)) __user *__p = (ptr); \ ^ /home/spksrc/spksrc-linuxtv2/spksrc/spk/synokernel-linuxtv/work-rtd1296-6.2.3/linuxtv-gita236fddff61e8357f3070effdf23e9b5f20b26e6/v4l/v4l2-compat-ioctl32.c:792:43: error: dereferencing pointer to incomplete type put_user(p64->timestamp.tv_nsec, &p32->timestamp.tv_nsec) || ^ ./arch/rtd1296/include/asm/uaccess.h:243:15: note: in definition of macro 'put_user' __typeof__(*(ptr)) __user *__p = (ptr); \ ^ /home/spksrc/spksrc-linuxtv2/spksrc/spk/synokernel-linuxtv/work-rtd1296-6.2.3/linuxtv-gita236fddff61e8357f3070effdf23e9b5f20b26e6/v4l/v4l2-compat-ioctl32.c:792:43: error: dereferencing pointer to incomplete type put_user(p64->timestamp.tv_nsec, &p32->timestamp.tv_nsec) || ^ ./arch/rtd1296/include/asm/uaccess.h:243:36: note: in definition of macro 'put_user' __typeof__(*(ptr)) __user *__p = (ptr); \ ^ /home/spksrc/spksrc-linuxtv2/spksrc/spk/synokernel-linuxtv/work-rtd1296-6.2.3/linuxtv-gita236fddff61e8357f3070effdf23e9b5f20b26e6/v4l/v4l2-compat-ioctl32.c:793:28: error: dereferencing pointer to incomplete type put_user(p64->id, &p32->id) || ^ ./arch/rtd1296/include/asm/uaccess.h:243:15: note: in definition of macro 'put_user' __typeof__(*(ptr)) __user *__p = (ptr); \ ^ /home/spksrc/spksrc-linuxtv2/spksrc/spk/synokernel-linuxtv/work-rtd1296-6.2.3/linuxtv-gita236fddff61e8357f3070effdf23e9b5f20b26e6/v4l/v4l2-compat-ioctl32.c:793:28: error: dereferencing pointer to incomplete type put_user(p64->id, &p32->id) || ^ ./arch/rtd1296/include/asm/uaccess.h:243:36: note: in definition of macro 'put_user' __typeof__(*(ptr)) __user *__p = (ptr); \ ^ /home/spksrc/spksrc-linuxtv2/spksrc/spk/synokernel-linuxtv/work-rtd1296-6.2.3/linuxtv-gita236fddff61e8357f3070effdf23e9b5f20b26e6/v4l/v4l2-compat-ioctl32.c:794:22: error: dereferencing pointer to incomplete type copy_to_user(p32->reserved, p64->reserved, sizeof(p32->reserved))) ^ /home/spksrc/spksrc-linuxtv2/spksrc/spk/synokernel-linuxtv/work-rtd1296-6.2.3/linuxtv-gita236fddff61e8357f3070effdf23e9b5f20b26e6/v4l/v4l2-compat-ioctl32.c:794:59: error: dereferencing pointer to incomplete type copy_to_user(p32->reserved, p64->reserved, sizeof(p32->reserved))) ^ /home/spksrc/spksrc-linuxtv2/spksrc/spk/synokernel-linuxtv/work-rtd1296-6.2.3/linuxtv-gita236fddff61e8357f3070effdf23e9b5f20b26e6/v4l/v4l2-compat-ioctl32.c: At top level: /home/spksrc/spksrc-linuxtv2/spksrc/spk/synokernel-linuxtv/work-rtd1296-6.2.3/linuxtv-gita236fddff61e8357f3070effdf23e9b5f20b26e6/v4l/v4l2-compat-ioctl32.c:784:12: warning: 'put_v4l2_event32' defined but not used [-Wunused-function] static int put_v4l2_event32(struct v4l2_event *p64, ^ cc1: warning: unrecognized command line option "-Wno-format-truncation" make[6]: *** [scripts/Makefile.build:270: /home/spksrc/spksrc-linuxtv2/spksrc/spk/synokernel-linuxtv/work-rtd1296-6.2.3/linuxtv-gita236fddff61e8357f3070effdf23e9b5f20b26e6/v4l/v4l2-compat-ioctl32.o] Error 1 make[5]: *** [Makefile:1411: _module_/home/spksrc/spksrc-linuxtv2/spksrc/spk/synokernel-linuxtv/work-rtd1296-6.2.3/linuxtv-gita236fddff61e8357f3070effdf23e9b5f20b26e6/v4l] Error 2 make[5]: Leaving directory '/home/spksrc/spksrc-linuxtv2/spksrc/spk/synokernel-linuxtv/work-rtd1296-6.2.3/linux' make[4]: *** [Makefile:53: default] Error 2 make[4]: Leaving directory '/home/spksrc/spksrc-linuxtv2/spksrc/spk/synokernel-linuxtv/work-rtd1296-6.2.3/linuxtv-gita236fddff61e8357f3070effdf23e9b5f20b26e6/v4l' make[3]: *** [Makefile:26: all] Error 2 make[3]: Leaving directory '/home/spksrc/spksrc-linuxtv2/spksrc/spk/synokernel-linuxtv/work-rtd1296-6.2.3/linuxtv-gita236fddff61e8357f3070effdf23e9b5f20b26e6' make[2]: *** [Makefile:87: linuxtv_compile] Error 2 make[2]: Leaving directory '/home/spksrc/spksrc-linuxtv2/spksrc/cross/linuxtv' make[1]: *** [../../mk/spksrc.depend.mk:51: depend_target] Error 2 make[1]: Leaving directory '/home/spksrc/spksrc-linuxtv2/spksrc/spk/synokernel-linuxtv' make: [../../mk/spksrc.spk.mk:434: arch-rtd1296-6.2.3] Error 2 (ignored)
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