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Subjectudmabuf.c:undefined reference to `dma_direct_map_sg'
Hi Christoph,

FYI, the error/warning still remains.

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 195303136f192d37b89e20a8d1d2670d0d825266
commit: 356da6d0cde3323236977fce54c1f9612a742036 dma-mapping: bypass indirect calls for dma-direct
date: 2 weeks ago
config: um-allmodconfig (attached as .config)
compiler: gcc-7 (Debian 7.3.0-1) 7.3.0
reproduce:
git checkout 356da6d0cde3323236977fce54c1f9612a742036
# save the attached .config to linux build tree
make ARCH=um

All errors (new ones prefixed by >>):

arch/um/drivers/vde.o: In function `vde_open_real':
(.text+0x951): warning: Using 'getgrnam' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking
(.text+0x79c): warning: Using 'getpwuid' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking
arch/um/drivers/vector_user.o: In function `user_init_socket_fds':
vector_user.c:(.text+0x334): warning: Using 'getaddrinfo' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking
arch/um/drivers/pcap.o: In function `pcap_nametoaddr':
(.text+0xdee5): warning: Using 'gethostbyname' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking
arch/um/drivers/pcap.o: In function `pcap_nametonetaddr':
(.text+0xdf85): warning: Using 'getnetbyname' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking
arch/um/drivers/pcap.o: In function `pcap_nametoproto':
(.text+0xe1a5): warning: Using 'getprotobyname' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking
arch/um/drivers/pcap.o: In function `pcap_nametoport':
(.text+0xdfd7): warning: Using 'getservbyname' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking
drivers/dma-buf/udmabuf.o: In function `map_udmabuf':
>> udmabuf.c:(.text+0x316): undefined reference to `dma_direct_map_sg'
>> collect2: error: ld returned 1 exit status

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0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
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